Updated on 2022/05/17

写真a

 
KAZAMA, Kentaro
 
Affiliation
Faculty of Human Sciences, School of Human Sciences
Job title
Associate Professor

Concurrent Post

  • Faculty of Human Sciences   Graduate School of Human Sciences

  • Faculty of Human Sciences   School of Human Sciences (Online Degree Program)

Education

  • 2006.04
    -
    2010.03

    Hokkaido University   Ph.D. in Graduate School of Fisheries Sciences  

  • 2004.04
    -
    2006.03

    Hokkaido University   M.S. in Graduate School of Fisheries Sciences  

  • 2000.04
    -
    2004.03

    Hokkaido University   Faculty of Fiheries Sciences  

Degree

  • Ph.D

Research Experience

  • 2019.04
    -
    Now

    Waseda University   Faculty of Human Science

  • 2016.06
    -
    2019.03

    Hokkaido University   Graduate school of Fisheries Sciences

  • 2016.04
    -
    2016.05

    Meijo University   Faculty of Agriculture

  • 2013.04
    -
    2016.03

    JSPS   Postdoctral research fellow (Meijo University)

  • 2010.09
    -
    2013.03

    Meijo University   Faculty of Agriculture   Postdoctral research fellow

  • 2010.04
    -
    2010.08

    Hokkaido University   Faculty of Fisheries Sciences   Researcher

▼display all

Professional Memberships

  •  
     
     

    Pacific Seabird Group

  •  
     
     

    THE MAMMAL SOCIETY OF JAPAN

  •  
     
     

    THE ORNITHOLOGICAL SOCIETY OF JAPAN

  •  
     
     

    JAPAN ETHOLOGICAL SOCIETY

  •  
     
     

    ECOLOGICAL SOCIETY OF JAPAN

 

Research Areas

  • Animal physiological chemistry, physiology and behavioral biology

  • Conservation of biological resources

  • Environmental dynamic analysis

  • Ecology and environment

Research Interests

  • Gull

  • Ornithology

  • Ecosystem Srevices

  • Great Cormorant

  • Stable Isotope

  • Insectivola

  • Seabirds

  • Marine Windfarm

  • Conservation Ecology

  • Nutrient cycling

  • Biogeochemistry

  • Physiological Ecology

  • Behavioral Ecology

  • Marine Ecology

▼display all

Papers

  • Correlation between molecular microbial community and nitrogen cycling on ornithogenic soil affected by tsunami in Japan

    Akifumi Hosoda, Mao Kurosaki, Kentaro Kazama, Hirotatsu Murano, Chitoshi Mizota, Yasuaki Niizuma

    Ecological Genetics and Genomics   23  2022.06  [Refereed]

    DOI

  • 洋上風力発電の海鳥への影響を軽減するためのセンシティビティマップ作成手法とその課題

    風間 健太郎, 綿貫 豊

    保全生態学研究    2021  [Refereed]

    Authorship:Lead author, Corresponding author

  • 洋上風力発電の促進区域選定における海鳥への影響評価に関する考察

    尾羽 秀晃, 風間 健太郎, 橋本 啓史, 永井 雄宇, 朝野 賢司

    電力中央研究所 研究資料   No. Y1950X  2020  [Refereed]

  • Ecological functions of an animal's personality in a group

    Kazama Kentaro

    JAPANESE JOURNAL OF ECOLOGY   70 ( 1 ) 45 - 53  2020  [Refereed]

    Authorship:Lead author, Corresponding author

    DOI CiNii

  • Sensitivity mapping for seabirds and offshore wind power farms: A case study of Slaty-backed gulls in Hokkaido

    Sato Yuka, Akasaka Takumi, Yabuhara Yuki, Kazama Kentaro, Kawaguchi Yoichi

    Japanese Journal of Conservation Ecology    2020  [Refereed]

     View Summary

    <p>Offshore wind energy is a renewable energy source that offers an opportunity to reduce greenhouse gas emissions while increasing energy security. However, many ecologists have suggested that offshore wind farms may have severe negative impacts on wildlife, especially seabirds. Thus, balancing seabird conservation with human energy demands is necessary when developing wind farms. Bird sensitivity mapping is a powerful and practical tool that can determine turbine collision risk within specific areas; however, sensitivity maps have seldom been generated for seabirds. Focusing on the Slaty-backed gull (Larus schistisagus), a red-listed species that often collides with wind turbines, we determined factors affecting habitat selection with the goal of reducing negative impacts of offshore wind farms. We then generated a sensitivity map using habitat modeling. GPS loggers set to record at 5-minute intervals between June and August 2018 were attached to six Slaty-backed gulls residing in Ochiishi Bay, Nemuro Prefecture, Japan. A Gaussian mixed model indicated that habitat selection was related to food availability (as determined by sea surface temperature and chlorophyll a content) and distance to the nest site. Sea surface temperature and chlorophyll a content were positively related area visitation frequency of Slaty-backed gulls, whereas distance to nest site was negatively correlated. Moreover, area visitation frequency was unchanged when the distance from the nest site was > 25 km. The sensitivity map indicated that areas both near and far from nest sites with potentially abundant food resources were high-risk areas with respect to turbine collisions for Slaty-backed gulls. Based on these results, we advocate the use of sensitivity mapping to reduce interactions between offshore wind farms and seabirds, especially for species that often forage far from their nest sites.</p>

    DOI CiNii

  • Bottom-up effects on coastal marine ecosystems due to nitrogen input from seabird feces.

    Kentaro Kazama

    ORNITHOLOGICAL SCIENCE   18 ( 2 ) 117 - 126  2019.07  [Refereed]

  • Foraging behavior of Black-footed Albatross Phoebastria nigripes rearing chicks on the Ogasawara Islands

    Kazama Kentaro, Harada Tomoko, Deguchi Tomohiro, Suzuki Hajime, Watanuki Yutaka

    ORNITHOLOGICAL SCIENCE   18 ( 1 ) 27 - 37  2019.01  [Refereed]

    DOI

  • Male and female Black-tailed Gulls Larus crassirostris feed on the same prey species but use different feeding habitats

    Kentaro Kazama, Bungo Nishizawa, Shota Tsukamoto, Jordi E. Gonzalez, Mami T. Kazama, Yutaka Watanuki

    Journal of Ornithology   159   923 - 934  2018.10  [Refereed]

    DOI

  • Preliminary record of Ixodes simplex simplex Neumann, 1906 (Acari : Ixodes), on bats (Chiroptera : Vespertilionidae) in Hokkaido, Aomori, Gunma, Saitama, and Gifu Prefectures, Japan

    Mamoru Takahashi, Hitoko Misumi, Michio Natsume, Kazuhiko Machida, Kentaro Kazama, Mami T. Kazama, Kuniko Kawai, Daichi Iwasawa, Masahiko Sato, Hiromi Fujita

      55   87 - 95  2018  [Refereed]

  • Annual variation in breeding numbers of two gull species in response to regional stock size and local availability of Japanese Sand Lance on Rishiri Island, northern Japan

    Kentaro Kazama, Masahiko Sato, Kazuki Kosugi

    ORNITHOLOGICAL SCIENCE   15 ( 1 ) 85 - 94  2016.01  [Refereed]

     View Summary

    Breeding population abundance such as colony size of seabirds is not generally considered to be particularly sensitive to the annual dynamics of the food conditions because of the long life-span and high adult survival rate. However, in seabird species in which adults decide to breed or not depending on the food conditions, population abundance can respond sensitively to the annual variation in the food conditions. Here, we examine the effects of the regional annual stock abundance of Japanese Sand Lance Ammodytes personatus, and their local temporal availability during the egg-laying period on the size of a Black-tailed Gull Larus crassirostris and Slaty-backed Gull L. schistisagus, breeding colony over 12 years on Rishiri Island, northern Japan. The total number of nests of both gull species increased significantly with the regional annual stock abundance, but not with the local temporal availability of the sand lance. The number of Black-tailed Gull nests without eggs was significantly higher in the year with lower local temporal availability indicating that more Black-tailed Gull parents gave up egg-laying after nest building. Colony size in these species can be a useful indicator reflecting local food conditions.

    DOI

  • The ornithological application of stable isotope analysis INTRODUCTION

    Kentaro Kazama

    ORNITHOLOGICAL SCIENCE   14 ( 1 ) 1 - 2  2015.01  [Refereed]

    DOI

  • Effects of Tsunami on ornithogenic nitrogen in soils at a Black-tailed Gull colony

    Kentaro Kazama, Hirotatsu Murano, Naoki Tomita, Akifumi Hosoda, Yasuaki Niizuma, Chitoshi Mizota

    ORNITHOLOGICAL SCIENCE   14 ( 1 ) 29 - 39  2015.01  [Refereed]

     View Summary

    Large amounts of marine-derived nitrogen are carried ashore by seabirds in their feces (ornithogenic N). Various topological, meteorological; and environmental factors can affect microbial transformation of ornithogenic N altering the physical and biochemical conditions of the soils. Tsunami may be a factor affecting ornithgenic soil N dynamics leading to changes in soil conditions. We examined the effects of the tsunami triggered by the 11 March 2011 earthquake off the East Coast of Honshu. Japan, on ornithogenic soil N in the Black-tailed Gull Larus crassirostris breeding colony on Kabushima (Kabu Island) four months after the disaster. There were no differences in the total N content in soils between tsunami splashed (upper half of the island) and flooded areas (lower half), and the visual topographv was comparable to that reported before the tsunami. It seems that the tsunami may not have extensively removed accumulated omitliogenic N in the soils, nor did it induce deposition of organic matter derived from marine sediments. However, delta N-15 values of soil N were lower in the area flooded by the tsunami than in the splashed area, suggesting the possibility that the tsunami caused leaching of ornithogenic N from the soil. Soils flooded by the tsunami contained higher levels of marine salts than those from the splashed area. N isotopic differences between NH4- and NO3-N were smaller in the flooded soils than in the splashed area. This indicates that nitrification of ornithogenic soil N is suppressed in the flooded area because of the remarkable increase in the salt concentration of the soil.

    DOI

  • Ecosystem services provided by birds: an overview

    KAZAMA Kentaro

    Japanese Journal of Ornithology   64 ( 1 ) 3 - 23  2015  [Refereed]

     View Summary

    Avian ecological functions can provide ecosystem service benefits to humans. Although the values of avian provisioning and cultural services are well understood, the values of supporting and regulating services are not. Through predation, transportation, and excretion, birds play various roles in terms of seed dispersal/pollination, controlling prey species populations, scavenging, and nutrient cycling. These behaviours provide benefits contributing to increased agricultural productivity, pest control, and habitat creation/maintenance for humans. Though attempts have been made recently to evaluate the economic significance of avian ecosystem services, such attempts remain scarce. In Japan, where people have traditionally enjoyed avian ecosystem services mainly in terms of their support of agricultural ecosystems, an understanding and evaluation of the value of avian ecosystem services is essential.

    DOI CiNii J-GLOBAL

  • Assimilation efficiency and growth of Rhinoceros Auklet chicks fed with Japanese Sand Lance and krill

    KUME Yuna, NIIZUMA Yasuaki, KAZAMA Kentaro, ITO Motohiro, YAMASHITA Rei, WATANUKI Yutaka

    Japanese Journal of Ornithology   64 ( 2 ) 219 - 226  2015  [Refereed]

     View Summary

    The assimilation efficiency and growth of Rhinoceros Auklet Cerorhinca monocerata chicks (30-35 age of days) fed with Japanese Sand Lance Ammodytes personatus and Antarctic Krill Euphausia superba were investigated. Chicks were fed 79.4 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn; <clig:><cotfcalt:><calgf:>3.1 gwet /d (mean <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn; <clig:><cotfcalt:><calgf:>SD) of sand lance, which included 497.2 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn; <clig:><cotfcalt:><calgf:>14.9 kJ energy, 4.3 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn; <clig:><cotfcalt:><calgf:>0.2 g lipid, and 12.3 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn; <clig:><cotfcalt:><calgf:>0.5 g protein. Chicks were fed 129.3 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn; <clig:><cotfcalt:><calgf:>2.7 gwet /d krill, which include 746.8 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn;<clig:><cotfcalt:><calgf:>15.5 kJ energy, 3.1 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn;<clig:><cotfcalt:><calgf:>0.1 g lipid, and 23.3 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn;<clig:><cotfcalt:><calgf:>0.5 g protein. The assimilation efficiency (corrected with nitrogen retention) of the sand lance-fed chicks (82.8 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn;<clig:><cotfcalt:><calgf:>0.5%) was significantly higher than the krill-fed chicks (76.6 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn;<clig:><cotfcalt:><calgf:>0.6%). During the experiment, daily mass increments of the sand lance-fed chicks were 11.0 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn;<clig:><cotfcalt:><calgf:>4.7 (g/d, n=12) and of the krill-fed chicks 9.7 <clig:0><cotfcalt:0><calgf:ProportionalWidthForm>&plusmn;<clig:><cotfcalt:><calgf:>2.7 (g/d, n=14). Sand lance-fed chicks gained body mass significantly faster than did krill-fed chicks after controlling for the significant age effect. Krill may be inadequate for chick growth of the auklets due to the poorer lipid content, compared with sand lance.

    DOI CiNii J-GLOBAL

  • Nutritional Composition and Energetic Values of Prey Species in Great Cormorant

    Niizuma Yasuaki, Tsuchiya Kenji, Kume Hitomi, Bessyo Toru, Kazama Kentaro

    Journal of the Yamashina Institute for Ornithology   45 ( 2 ) 93 - 97  2014  [Refereed]

     View Summary

    We measured the nutritional composition and energetic values of 19 prey species of Great Cormorants Phalacrocorax carbo in Chubu, central Japan. Samples were collected during 2005–2012 from several breeding colonies, fish markets, rivers, and the sea near colonies. Lipid content and energetic value (dry mass based) varied widely, from 0.6% and 12.43 kJ/g for red swamp crayfish Procambarus clarkii to 38.2% and 27.79 kJ/g for white-spotted conger Conger myriaster.

    DOI CiNii

  • Parental body condition affects egg volume in Rhinoceros Auklet but trophic level does not

    SUZUKI Yuya, ITO Motohiro, KAZAMA Kentaro, NIIZUMA Yasuaki, WATANUKI Yutaka

    Japanese Journal of Ornithology   63 ( 2 ) 279 - 287  2014  [Refereed]

     View Summary

    Planktivorous alcid females feeding more on lower trophic prey, i.e. copepods, during the pre-breeding season, lay larger eggs. The Rhinoceros Auklet (Cerorhinca monocerata) is piscivorous, but feeds also on krill in the spring at Teuri Island, Hokkaido, Japan. To examine the factors affecting their egg volume, we measured body size, body condition and the nitrogen stable isotope ratio (&delta;15N, a proxy of trophic level TL) of blood and feathers of male and female parents incubating eggs in three years (2010, 2011 and 2012). In 2011 and 2012, we sampled eggs within one day of laying and measured &delta;15N and &delta;13C (carbon stable isotope ratio) of yolk, albumen and membrane and those of feathers and blood of the female parents. We also sampled stomach contents of adults using water off-loading technique during the laying and incubation period, and determined their prey composition. Female body condition and size as well as male body size positively affected the egg volume index. Birds fed on low (krill) and high (fish) trophic prey during the laying and incubation periods, while individual variation in the &delta;15N of blood cells that reflected TL during the pre-laying period did not affect the egg volume index. &delta;15N of breast feathers that reflected TL during the molting period also did not relate to egg volume index. &delta;15N and &delta;13C of feathers and blood of females did not correlate with those of egg yolk, albumen, or egg membrane.

    DOI CiNii

  • Movements and activities of male black-tailed gulls in breeding and sabbatical years

    Kentaro Kazama, Kazuhiko Hirata, Takashi Yamamoto, Hiroshi Hashimoto, Akinori Takahashi, Yasuaki Niizuma, Philip N. Trathan, Yutaka Watanuki

    JOURNAL OF AVIAN BIOLOGY   44 ( 6 ) 603 - 608  2013.11  [Refereed]

     View Summary

    Long-lived animals sometimes skip one or more breeding seasons; however, little is known about their movements and activities during such sabbatical' periods. Here we present novel data on year-round movements and activities of two male black-tailed gulls Larus crassirostris during a sabbatical year. We compare the data with those in a year when they bred and with those of two other breeding males. The year-round migration routes of two sabbatical males were consistent with those of the breeding males: they returned to the breeding area but did not visit the colony in the sabbatical year. They landed more frequently on water (a potential index of foraging effort) during the non-breeding autumn and winter prior to the sabbatical year than before breeding. Sabbatical gulls may forage more intensively to recover body condition immediately after breeding.

    DOI

  • Environmental factors affecting capture rate of the Japanese Water Shrew, Chimarrogale platycephala

    SAITOH Hiroaki, KAZAMA Kentaro, HINO Teruaki

    Honyurui Kagaku (Mammalian Science)   53 ( 1 ) 117 - 121  2013.06  [Refereed]

     View Summary

    Environmental factors affecting the capture rate of the Japanese water shrew Chimarrogale platycephala were investigated in the Kamikoshi River, Aichi, central Japan, from June to December in 2011. The shrews were significantly more frequently captured at confluences and in narrow secondary tributaries not shown on the 1/25,000 scale topographical map published by the Geographical Survey Institute. They were also more frequently captured within three days after heavy rainfall (over 150 mm/day). Soil inflow into the tributaries caused by pavement construction projects did not affect capture rate.<br>

    DOI CiNii

  • Inter-colonial and annual differences in food habits of Great Cormorants rearing chicks in the Chubu area of Japan

    TSUCHIYA Kenji, KAZAMA Kentaro, INOUE Yukiko, FUJII Hidenori, NIIZUMA Yasuaki

    Japanese Journal of Ornithology   62 ( 1 ) 57 - 63  2013.04

     View Summary

    Few studies have been made so far of inter-colonial and annual variation in the diet of breeding Great Cormorants Phalacrocorax carbo. We investigated their diet during the chick rearing period by collecting regurgitates from five breeding colonies, in the Chubu area, central Japan, in 2009-2011. Those cormorants breeding in coastal colonies took mainly Flathead Mullet Mugil cephalus cephalus and Dotted Gizzard Shad Konosirus punctatus, while those breeding in inland colonies took a wide range of fishes in any given year. The frequency of introduced Red Swamp Crayfish Procambarus clarkii and native Oriental River Prawn Macrobrachium nipponense in the diet increased in years when frequencies of fishes decreased, at both inland and coastal colonies.

    DOI CiNii J-GLOBAL

  • Effect of Ambient Air Temperature on Food Intake of Captive Sub-adult Great Cormorants Phalacrocorax carbo hanedae

    Kazama Kentaro, Iwamoto Mami T., Hori Yukiko, Niizuma Yasuaki

    Journal of the Yamashina Institute for Ornithology   45 ( 1 ) 46 - 52  2013  [Refereed]

     View Summary

    Daily food intake and changes in body mass of five, hand-reared sub-adult Great Cormorants Phalacrocorax carbo hanedae were measured in an outdoor cage over 117 days during winter and spring. During the period of the study, the five birds maintained almost constant body masses, despite variation in their daily food intake (they were fed ad lib). Daily food intake mass per unit body mass of individuals decreased significantly as the ambient air temperature increased, but daily body mass increment per unit body mass of individuals did not. These results indicate that the daily energy expenditure of cormorants decreases as ambient air temperature increases, probably because of the suppression of thermoregulation costs.

    DOI CiNii

  • Input of seabird-derived nitrogen into rice-paddy fields near a breeding/roosting colony of the Great Cormorant (Phalacrocorax carbo), and its effects on wild grass

    Kentaro Kazama, Hirotatsu Murano, Kazuhide Tsuzuki, Hidenori Fujii, Yasuaki Niizuma, Chitoshi Mizota

    Applied Geochemistry   28   128 - 134  2013.01  [Refereed]

     View Summary

    Terrestrial ecosystems near breeding/roosting colonies of piscivorous seabirds can receive a large amount of marine-derived N in the form of bird feces. It has been well demonstrated that N input from seabirds strongly affects plant communities in forests or coastal grasslands. The effects of nutrient input on plant communities in agricultural ecosystems near seabird colonies, however, have rarely been evaluated. This relationship was examined in rice-paddy fields irrigated by a pond system located near a colony of the Great Cormorant Phalacrocorax carbo in Aichi, central Japan. In the present study, spatial variations in N content (N %) and N stable isotope composition (δ15N) of soils and wild grass species together with the growth height of plants in paddy fields in early spring (fallow period) were examined. Soils had a higher N % and δ15N values in fields associated with an irrigation pond that had N input from cormorants. The δ15N values tended to be higher around the inlet of irrigation waters, relative to the outlet. These results indicate that cormorant-derived N was input into the paddy fields via the irrigation systems. Plants growing in soil with higher δ15N had higher δ15N in the above-ground part of the plants and had luxurious growth. A positive correlation in plant height and δ15N of NO3-N was observed in soil plough horizons. © 2012 Elsevier Ltd.

    DOI

  • Intraspecific Kleptoparasitism, Attacks on Chicks and Chick Adoption in Black-tailed Gulls (Larus crassirostris)

    Kentaro Kazama, Yasuaki Niizuma, Yutaka Watanuki

    WATERBIRDS   35 ( 4 ) 599 - 607  2012.12  [Refereed]

     View Summary

    To understand the adaptive significance of colonial breeding, evaluating the costs and benefits that colonial breeding provides to individuals is necessary. To study some of these costs and benefits of colonial breeding, over 24,000 nest-hour observations of kleptoparasitism (stealing of food being fed to young), intraspecific attacks on and killing of chicks; and chick adoption were conducted in colonial breeding Black-tailed Gulls (Larus crassirostris) during two breeding seasons. Although kleptoparasitism was rarely observed (under 0.001 events/nest/observational hour), the occurrence of chick-attacks was 5-10 times higher (0.005-0.01 events/nest/observational hour) than that of kleptoparasitism, with over 10% of the attacks resulting in the death or disappearance of chicks. More than 60% of all attacks on chicks were by failed breeders and non-breeding adult floaters. The survival of attacked chicks reached 98-100% if they escaped into other nests and were accepted by "foster" adults, or if they were defended by non-parental,adults. Chick adoption and non-parental defense were more likely to be observed among breeding neighbors (52-60% of chick adoptions and almost all examples of non-parental defense) than among non-neighbors. An increased chick survival rate, resulting from nesting in close to proximity to conspecific neighbors, was considered as a factor promoting colonial breeding among the Laridae. Received 20 January 2012, accepted 5 August 2012.

    DOI

  • Prey resources used for producing egg yolks in four species of seabirds: insight from stable-isotope ratios

    Motohiro Ito, Kentaro Kazama, Yasuaki Niizuma, Hiroshi Minami, Yuzan Tanaka, Yutaka Watanuki

    ORNITHOLOGICAL SCIENCE   11 ( 2 ) 113 - 119  2012.12  [Refereed]

     View Summary

    Carbon and nitrogen stable-isotope ratios were measured in the egg yolks of four species of seabirds in Teuri Island and Rishiri Island, Japan. Delta N-15 of the yolks of Rhinoceros Auklets Cerorhinca monocerata (11.2-12.3 parts per thousand) and Black-tailed Gulls Larus crassirostris (11.3-12.5 parts per thousand) were lower than those of Slaty-backed Gulls Larus schistisagus (13.4-14.2%0) and Japanese Cormorants Phalacrocorax capillatus (14.0-16.2 parts per thousand); suggesting that the former two species foraged mainly on low trophic level small fishes and sometimes on krill, while the latter two species fed on higher trophic level prey and larger fishes.

    DOI

  • Consistent individual variations in aggressiveness and a behavioral syndrome across breeding contexts in different environments in the Black-tailed Gull

    Kentaro Kazama, Yasuaki Niizuma, Yutaka Watanuki

    JOURNAL OF ETHOLOGY   30 ( 2 ) 279 - 288  2012.05  [Refereed]

     View Summary

    Individual behaviors of animals do not evolve separately; they do so in association with other behaviors caused by single shared genetic or physiological constraints and/or favored by selection. Thus, measuring behavioral syndromes-suites of correlated behaviors across different contexts-leads to a better understanding of the adaptive significance of variations in behaviors. However, relatively few studies have examined behavioral syndromes in wild animal populations in changing environments. We investigated a potential behavioral syndrome across antipredator nest defense, territorial defense, chick provisioning, and mating behaviors of male Black-tailed Gulls Larus crassirostris in two successive years under different conspecific territorial intrusion risks and food conditions. Males that presented high levels of antipredator nest defense (aggressive antipredator defenders) against a crow decoy (crows are egg predators) defended their territories against conspecific intruders more frequently than did other males (nonaggressive antipredator defenders), independent of the risk of intrusion. Aggressive antipredator defenders also fed their chicks more frequently than nonaggressive males, but only in a year of low food availability. Taken together, this indicates that males show consistent aggressiveness regardless of breeding context (antipredator and territorial defense), but can regulate food provisioning according to food availability.

    DOI

  • Accelerated growth rates in late-hatched Rhinoceros Auklet Cerorhinca monocerata chicks depend on food conditions and growth stage: an experimental approach

    Fumi Hirose, Kentaro Kazama, Motohiro Ito, Yutaka Watanuki

    IBIS   154 ( 2 ) 296 - 306  2012.04  [Refereed]

     View Summary

    In some bird species, the survival of chicks hatching later in the season is lower than those hatched earlier due to increased risk of predation and a seasonal decline in feeding conditions. To reduce these risks, it might be advantageous for late-hatched chicks to grow faster and hence fledge at younger age. In this experimental study, the growth rates of early- and late-hatched Rhinoceros Auklet Cerorhinca monocerata chicks were compared under average and poor food supplies in captivity. Controlling for potentially confounding effects of chick mass at 10 days old, chick age and nest-chamber temperature, late-hatched chicks had higher wing growth rate than early-hatched chicks before attaining the minimum wing length required for fledgling under both average and poor food supplies. After attaining the minimum wing length, however, late-hatched chicks had a lower fledging mass, indicating a potential cost that could diminish the early advantage of fast wing growth.

    DOI

  • Impacts of offshore wind farms on marine ecosystems (Understanding the effects of wind-farms on ecosystem)

    Kazama Kentaro

    Japanese Journal of Conservation Ecology   17 ( 1 ) 107 - 122  2012  [Refereed]

     View Summary

    Offshore wind-power generation is one of the fastest growing industries in many areas, especially Europe. Offshore wind farms (OWFs) can provide several economic benefits, but are potential threats to some marine organisms. Noises produced by exploration drilling and pile-driving during construction of OWFs can impede acoustic communication of fishes and marine mammals. Wind turbine bases with scour protection structures directly reduce the habitats of marine organisms and potentially affect their survival by altering oceanographic conditions and food availability. Collisions between turbines and flying birds have also been frequently observed at OWFs. Foraging seabirds and/or migratory terrestrial birds display avoidance responses to OWFs (e.g. detour flights around the turbines), and several researchers have modelled the additional energetic costs of such detour flights and potential impacts on the body condition of the birds. Further long-term studies are needed for various organisms at OWFs across a broad geographic distribution. Efforts to mitigate the impacts of OWFs on marine ecosystems should include the avoidance of OWF construction in areas harbouring important foraging areas and migratory routes, acoustic deterrence methods (e.g. bubble curtain) during construction, and turning off turbines during breeding and migrating seasons.

    DOI CiNii

  • Factors affecting individual variation in nest-defense intensity in colonially breeding Black-tailed Gulls (Larus crassirostris)

    Kentaro Kazama, Yasuaki Niizuma, Kentaro Q. Sakamoto, Yutaka Watanuki

    CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE   89 ( 10 ) 938 - 944  2011.10  [Refereed]

     View Summary

    The physiological state of parent birds combined with the value of their clutch may affect the intensity of their nest defense. In colonially breeding birds, nest-defense intensity may also be affected by the behavior of neighbors. We investigated individual variation in the nest-defense intensity among colonial Black-tailed Gulls (Larus crassirostris Vieillot, 1818) over 2 years. Only 30%-40% of males attacked a decoy of an egg predator (Large-billed Crow (Corvus macrorhynchos Wagler, 1827)), and the other males and females rarely attacked. Males attacking the decoy had higher levels of plasma testosterone than males that did not attack. Each male&apos;s, but not female&apos;s, nest-defense intensity was consistent throughout the incubation period and also across years. The intensity was not related to egg-laying date, clutch size, or age of offspring. The intensity was likely to be higher when individuals had one or more neighbors, representing higher nest-defense intensity in the year where gulls had larger number of adjacent neighboring nests (5.23 nests), but this trend was not observed in the year where they had smaller number of the neighboring nests (3.73 nests). Thus, in addition to testosterone levels, behavior of neighbors also influences the nest-defense intensity.

    DOI

  • The relationship between pink salmon biomass and the body condition of short-tailed shearwaters in the Bering Sea: can fish compete with seabirds?

    Kanako Toge, Rei Yamashita, Kentaro Kazama, Masaaki Fukuwaka, Orio Yamamura, Yutaka Watanuki

    PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES   278 ( 1718 ) 2584 - 2590  2011.09  [Refereed]

     View Summary

    Seabirds and large fishes are important top predators in marine ecosystems, but few studies have explored the potential for competition between these groups. This study investigates the relationship between an observed biennial change of pink salmon (Oncorhynchus gorbuscha) biomass in the central Bering Sea (23 times greater in odd-numbered than in even-numbered years) and the body condition and diet of the short-tailed shearwater (Puffinus tenuirostris) that spends the post-breeding season there. Samples were collected with research gill nets over seven summers. Both species feed on krill, small fishes and squid. Although the mean pink salmon catch per unit effort (in mass) over the study region was not related significantly with shearwater&apos;s stomach content mass or prey composition, the pink salmon biomass showed a negative and significant relationship with the shearwater&apos;s body mass and liver mass (proxies of energy reserve). We interpret these results as evidence that fishes can negatively affect mean prey intake of seabirds if they feed on a shared prey in the pelagic ecosystem.

    DOI

  • Testosterone and breeding behavior in male Black-tailed Gulls: an implant experiment

    Kentaro Kazama, Kentaro Q. Sakamoto, Yasuaki Niizuma, Yutaka Watanuki

    ORNITHOLOGICAL SCIENCE   10 ( 1 ) 13 - 19  2011.06  [Refereed]

     View Summary

    Testosterone affects male sexual-, aggressive-, and parental-behaviors in bird species. To understand the breadth of the proximate contribution of testosterone to breeding behaviors in male Black-tailed Gulls Larus crassirostris, sexual behaviors, aggressive behaviors against egg-predators and conspecifics, and chick-provisioning behavior of five testosterone-implanted males (T-males) were observed and compared with those of three control males (placebo-implanted; C-males). T-males showed significantly higher levels of courtship and copulation behaviors than C-males. The levels of aggressiveness against egg-predators and against conspecifics, and the rate of feeding of chicks did not differ between T- and C-males. These results suggest that sexual and mating behaviors in male Black-tailed Gulls may be affected by testosterone, while aggressive- and feeding-behaviors are affected by certain ecological factors, such as individual age, or a necessity for high levels of feeding by males, rather than by testosterone.

    DOI

  • The physiological ecology of seabirds INTRODUCTION

    Kentaro Kazama, Yasuaki Niizuma

    ORNITHOLOGICAL SCIENCE   10 ( 1 ) 1 - 2  2011.06  [Refereed]

    DOI

  • Within- and among-clutch variation in maternal yolk testosterone level in the Black-tailed Gulls Larus crassirostris

    Naoki Tomita, Kentaro Kazama, Hidetsugu Sakai, Megumi Sato, Atsushi Saito, Masaoki Takagi, Yasuaki Niizuma

    ORNITHOLOGICAL SCIENCE   10 ( 1 ) 21 - 25  2011.06  [Refereed]

     View Summary

    Mother birds can enhance growth and/or survival of chicks by supplying energetic and hormonal resources to the egg yolk (i.e. maternal effect). In several bird species, mothers supply higher level of testosterone to the eggs laid later within the clutch and enhance the growth of the chick to compensate for the disadvantage of the later hatching. As same as this within-clutch mechanism, mothers breeding later in the season can be expected to supply higher level of testosterone to the clutch. However, among-clutch seasonal variation in yolk testosterone levels has been rarely described. Here, we investigated among-clutch seasonal variation in the yolk testosterone level in Black-tailed Gulls Larus crassirostris, as well as within-clutch variation. Mean yolk testosterone level of eggs laid later within the clutch ("b-eggs") was significantly higher than that of eggs laid earlier ("a-eggs"). The yolk testosterone levels of both a- and b-eggs of later breeders were significantly higher than those of earlier ones, while this trend was not observed in mean egg mass. Our results indicate that mothers establishing the clutch later in the season would invest more maternal testosterone into the clutch.

    DOI

  • Beached bird surveys and ferry census for the seabird monitoring

    KAZAMA Kentaro, ITO Motohiro, TOMITA Naoki, NIIZUMA Yasuaki

    Japanese Journal of Ornithology   60 ( 1 ) 12 - 18  2011.04  [Refereed]

     View Summary

    Seabird populations, important components of the marine ecosystem, are decreasing due to human activity impacting the oceans. In order to conserve seabirds, it is essential to conduct monitoring studies of seabirds and to understand how factors affect the dynamics of their populations and their breeding success. Here we introduce methods of seabird monitoring on beaches and oceans, including beached bird surveys and ferry censuses, and explain their fundamental significance for monitoring studies. In beached bird surveys, researchers record the carcasses of seabirds found while walking along a certain length of beach. Citizens interested in seabird conservation can easily conduct such surveys and contribute to continuous monitoring studies. During censuses from ferries, researchers count the seabirds resting on the sea surface or flying from the vessel and record their behavior. Research vessels, trading ships and ferries can all be used for such censuses. Censuses from ferries are feasible for amateur birdwatchers with binoculars. Seabird researchers aim to identify &ldquo;Marine Important Bird Areas (Marine IBA)&rdquo;, areas and habitat seabirds use frequently. Ferry censuses can provide important information to detect Marine IBA. Beached bird surveys conducted by amateur birdwatchers play an important role in providing information on the occurrence of oil spills and bycatch in Marine IBA. Beached bird surveys and ferry censuses conducted by amateur birdwatchers are expected to be extended and carried out at many sites continuously.

    DOI CiNii

  • Observations of a hybridizing pair of Slaty-backed Gull and Glaucous-winged Gull, on Rishiri Island, Hokkaido, Japan

    Kazama Kentaro, Hirata Kazuhiko, Sato Masahiko

    Japanese Journal of Ornithology   60 ( 2 ) 241 - 245  2011  [Refereed]

    DOI CiNii

  • Individual differences in nest defense in the colonial breeding Black-tailed Gulls

    Kentaro Kazama, Yutaka Watanuki

    BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY   64 ( 8 ) 1239 - 1246  2010.08  [Refereed]

     View Summary

    Often in colonial seabirds, all colony members are believed to defend against nest predators and experience equal nest predation risk. However, the variation of defense behavior among members and its reproductive consequences are largely unknown. We investigated (1) individual variation in the nest defense of breeding Black-tailed Gulls Larus crassirostris against a natural egg predator, the Jungle Crow Corvus macrorhynchos and (2) how this behavioral variation affects an individual&apos;s own nest predation risk and that of their neighbors. Results were compared between 2 years where crow attack levels were manipulated to average 5 and 22 times normal rates ("low" and "high" predation risk years, respectively) by the placement of varying numbers of artificial nests containing unguarded eggs at the perimeter of the gull colony. In both years, 23-38% of parents, mostly males, showed "aggressive" defense behavior (strikes or chases) against crows and decoys. Other "non-aggressive" gulls showed no defense. In the year of low predation risk, intrusion rates by crows (landing within 0.5 m of an individual gull&apos;s nest) were similar for aggressive and non-aggressive gulls. In the year of high predation risk, however, the rates of intrusion for aggressive gulls (4%) and for non-aggressive gulls with an aggressive neighbor (37%) were significantly lower than for non-aggressive gulls without an aggressive neighbor (76%). These results indicate that aggressive individuals reduce nest predation risk for themselves and conspecific neighbors in a colonially breeding species.

    DOI

  • Experimental study of the effect of clutch size on nest defense intensity in Black-tailed Gulls

    Kentaro Kazama, Yasuaki Niizuma, Yutaka Watanuki

    ORNITHOLOGICAL SCIENCE   9 ( 1 ) 93 - 100  2010.06  [Refereed]

     View Summary

    Since parent birds are hypothesized to adjust the level of their nest defense against predators so as to enhance the survival of their offspring, parental nest defense is expected to increase in intensity in relation to increasing clutch size. Empirical studies of bird species, in which clutch sizes have been manipulated artificially, however, have produced results contradicting such expectations, partly, it is thought, because of various errors in experimental design, such as a lack of nesting habitat control, or providing too short a time for parents to assess the value of the manipulated clutch. Hence, further evidence needed to be gathered to clarify whether the basic hypothesis is adequately supported. We manipulated the clutch size of Black-tailed Gulls Larus crassirostris and observed the responses of male parents to a crow decoy in controlled nesting habitats. The intensity of defense was not affected by the clutch size. Opportunities for future reproduction, or constant individual levels of aggressiveness of seem to best explain the observed intensity of nest defense in these long-lived Black-tailed Gulls, rather than the value of the current clutch.

    DOI

  • Seabirds as indicators of the state of the marine environment and its conservation

    Kazama Kentaro, Ito Motohiro, Niizuma Yasuaki, Sakurai Yasunori, Takada Hideshige, Sydeman William J., Croxall John P., Watanuki Yutaka

    Japanese Journal of Ornithology   59 ( 1 ) 38 - 54  2010  [Refereed]

     View Summary

    For sustainable use of marine resources, ecosystem based management is essential. However, collecting and integrating all the information needed is difficult. Thus it is important to use effective indicators of marine ecosystem change. Seabirds are believed to be useful biological indicators of marine ecosystem changes and marine pollution. In this paper, we review: 1) the responses of seabird to climate driven marine ecosystem changes, 2) the usefulness of seabirds as indicators of marine pollution and its potential effect on seabirds, 3) the status and conservation of albatrosses, focusing on the reduction of long-line by-catch. We review the seabird monitoring program globally and propose a seabird monitoring and network in Japan.

    DOI CiNii

  • Adoption of additional chicks from other nests by the Black-tailed Gull, in relation to chick age

    Kazama Kentaro, Fukuda Takayuki, Mori Yoshihisa

    Japanese Journal of Ornithology   58 ( 1 ) 103 - 107  2009  [Refereed]

     View Summary

    Although it is considered that adoption of unrelated chicks is not adaptive, several studies of ground-nesting colonial seabirds have reported adoption of unrelated chicks. These studies revealed experimentally that adoption occurs more frequently for chicks younger than around five days old whereas older chicks tend to be rejected. In experiments, individual unrelated chicks were added to host nests while at the same time individual host's chicks were removed so as to maintain the total number of chicks in each nest. However, it is unlikely that the total number of chicks is maintained after unrelated chicks are added under natural condition. In the present study of the Black-tailed Gull Larus crassirostris, we added an unrelated chick to increase the total number chicks in a nest and investigated the occurrence of adoption in relation to chick' age. We found that, even if the total number of chicks increased, adoption occurred more frequently for younger chicks (less than 4&ndash;6 days old) than for older chicks, suggesting that (1) parents do not use the total number of chicks in their nest to recognize and discriminate additional unrelated chicks, and (2) the cost of adoption must not be very high even when it results in an increase in the total number of chicks.

    DOI CiNii

  • Relationship between telomere length and age in Black-tailed Gull

    Mizutani Yuichi, Tomita Naoki, Kazama Kentaro, Takahashi Hiroki, Hasegawa Osamu, Niizuma Yasuaki

    Japanese Journal of Ornithology   58 ( 2 ) 192 - 195  2009  [Refereed]

     View Summary

    We investigated telomere length of Black-tailed Gull Larus crassirostris (chick and adult) in Rishiri Island, Hokkaido and Kabushima, Aomori in relation to their age. DNAs were extracted from their bloods and detected telomere length. Telomere lengths were significantly decreased with gulls' age. But coefficient value was too small because of large variability of telomere length in both chick and adult. We suggest that it is difficult for Black-tailed Gull to estimate their age by using telomere length.

    DOI CiNii

  • Plasma Testosterone Levels of Incubating Black-tailed Gulls

    Kazama Kentaro, Q. Sakamoto Kentaro, Watanuki Yutaka

    Journal of the Yamashina Institute for Ornithology   39 ( 2 ) 112 - 116  2008  [Refereed]

     View Summary

    In some avian species, male plasma testosterone levels are maximum during the courtship or copulation periods, but decline abruptly once incubation starts. However, testosterone levels of male Black-tailed Gulls Larus crassirostris during the course of breeding remain unknown. In 2006, blood samples of 23 incubating males were collected at Rishiri Island, Hokkaido, Japan and testosterone was measured by enzyme immunoassay kit. Plasma testosterone level (mean&plusmn;S.E.: 0.737&plusmn;0.282 ng/ml) was assumed to decline with elapsed days from the onset of incubation, as shown in other species.

    DOI CiNii

  • A record of a Red-footed Booby Sula sula from Rishiri Island, Hokkaido

    Kazama Kentaro, Sat&ocirc; Masahiko

    Japanese Journal of Ornithology   57 ( 1 ) 30 - 32  2008  [Refereed]

    DOI CiNii

  • Responses in breeding behaviour of the black-tailed gull (Larus crassirostris) to different marine environments.

    Kazama Kentaro, Tomita Naoki, Ito Motohiro, Niizuma Yasuaki, Takagi Masaoki, Watanuki Yutaka, Okada Hisatake, Mawatari Shunsuke F, Suzuki Noriyuki, Gautam Pitamba

    Origin and evolution of natural diversity: proceedings of the international symposium 'The Origin and Evolution of Natural Diversity', from 1-5 October 2007 in Sapporo, Japan.     215 - 220  2008  [Refereed]

  • Factors affecting egg predation in black-tailed gulls

    Kentaro Kazama

    ECOLOGICAL RESEARCH   22 ( 4 ) 613 - 618  2007.07  [Refereed]

     View Summary

    In colonial seabirds, nesting density, egg-laying date and nest microhabitat affect the probability of eggs being taken by avian predators. Jungle Crows (Corvus macrorhynchos) are dominant predators of eggs of Black-tailed Gulls (Larus crassirostris). Factors affecting the probability of gulls allowing the crows to attack their nests or depredate their eggs and the probability of eggs being taken were studied by direct observation and egg census, respectively. The effect of vegetation heights, position in the colony, egg-laying date and neighbour nests on the probability of eggs being taken were examined at multiple spatial scales. Gull nests were depredated more easily by larger groups of crows. Nests in peripheral areas (&lt; 4 m from the edge of the colony) were also depredated more easily by the crows walking on the ground. Although the nests where eggs were laid early in the season were depredated more frequently, such nests highly synchronised in egg laying within a &lt; 2-m radius were less likely to be depredated than less-synchronised nests. The nests in tall vegetation were less likely to be depredated though those having neighbour nests in tall vegetation were not. The number of neighbour nests did not affect the probability of eggs being taken. Antipredation effects of nesting microhabitats vary with spatial scales at which the crows search and attack the nests of gulls.

    DOI

  • Estimation of breeding population size of Streaked Shearwaters on Sangan Island, Iwate, based on 3D topography by GIS.

    Matsumoto Kei, Kazama Kentaro, Sato Katsufumi, Oka Nariko

    Japanese Journal of Ornithology   56 ( 2 ) 170 - 175  2007  [Refereed]

     View Summary

    It has been common to estimate the number of nests and size of breeding populations of colonial seabirds based on two-dimensional (2D) areas. For seabirds breeding in areas with undulating topography, however, any nest distribution area based on the 2D area will be an underestimate, resulting in an underestimate of nest numbers. We investigated the nest density of Streaked Shearwaters according to the vegetation type on Sangan Island, Iwate, and estimated the total number of nests and breeding population in a three-dimensional (3D) area which reflected altitude, using geographical information system (GIS) and compared data with values obtained from a simple 2D area. The vegetation area obtained by the 3D method was 1.3 times that of the 2D area. Based on the conditions of the geographical feature, vegetation, and geology of Sangan Island, the total number of nests estimated by the 3D method was 1.2 times that of the 2D method. The population size parameters of Streaked Shearwaters breeding on Sangan Island obtained by the 3D method were estimated as 101,000 nests, 41,000 fledglings (=fledging nests), and 109,000 breeders during the hatching period. On another island off the same Sanriku coast, storm petrels have decreased in number, caused by the nesting activities of Streaked Shearwaters. It seems apparent that the large population of shearwaters on Sangan Island is excluding storm-petrels, including the endangered Swinhoe's Storm-petrel, from breeding.

    DOI CiNii

▼display all

Books and Other Publications

  • はじめてのフィールドワーク3 日本の鳥類編

    武田 浩平, 風間 健太郎, 森口 紗千子, 高橋 雅雄, 加藤 貴大, 長谷川 克, 安藤 温子, 山本 誉士, 小林 篤, 岡久 雄二, 武田 広子, 黒田 聖子, 松井 晋, 堀江 明香( Part: Joint author, 最北の島でウミネコをみる)

    東海大学出版部  2018.09 ISBN: 4486021657

    ASIN

  • 鳥の行動生態学

    風間健太郎, 江口 和洋( Part: Contributor, 鳥類の行動と生理)

    京都大学学術出版会  2016.03 ISBN: 4814000006

    ASIN

  • 行動生物学辞典

    風間健太郎, 上田 恵介, 菊水 健史, 坂上 貴之, 岡ノ谷 一夫, 辻 和希( Part: Contributor, 行動の可塑性、行動シンドローム、盗み寄生、パーソナリティ)

    東京化学同人  2013.11 ISBN: 4807908375

    ASIN

  • 厚岸町史 厚岸の生物 (編 厚岸町教育委員会)

    風間健太郎( Part: Contributor, オオセグロカモメ、ウミネコ、ウミウ)

    厚岸町  2012

Misc

  • Marine wind power and seabirds

    KAZAMA Kentaro

    Impact Assessment   19 ( 1 ) 26 - 28  2021

    DOI CiNii J-GLOBAL

  • 「洋上風力発電と環境アセスメント」

    村山 武彦, 堀上 勝, 斉藤 長, 風間 健太郎, 赤松 友成

    環境アセスメント学会誌   19 ( 1 ) 35 - 43  2021

    DOI CiNii

  • 海鳥 漁業に貢献 ウミネコのフンが昆布の栄養源に

    風間健太郎

    野鳥   85 ( 1 )  2020

    J-GLOBAL

  • For interpretation of animal personality and its implications for ecology: Introduction

    Atsumi Keisuke, Sakai Osamu, Kazama Kentaro

    JAPANESE JOURNAL OF ECOLOGY   70 ( 1 ) 31 - 32  2020

    DOI CiNii

  • サギ類集団繁殖地における地域住民主体の防除対策

    森部絢嗣, 風間健太郎

    日本鳥学会大会講演要旨集   2019  2019

    J-GLOBAL

  • 北海道利尻島における海鳥類保護の現状とその要因

    風間麻未, 風間健太郎

    日本鳥学会大会講演要旨集   2019  2019

    J-GLOBAL

  • 北海道北部における繁殖海鳥へのウミドリマダニの寄生状況

    風間健太郎, 高橋守, 新倉(座本)綾, 沖山幹, 佐藤雅彦, 風間麻未

    日本鳥学会大会講演要旨集   2019  2019

    J-GLOBAL

  • カモメ類を指標にした洋上風発衝突リスクマップ

    綿貫豊, 風間健太郎

    日本鳥学会大会講演要旨集   2019  2019

    J-GLOBAL

  • ウミネコとニワトリの初期栄養特性の比較

    太田能之, 久木田結愛, 長谷川悦子, 白石純一, 風間麻未, 風間健太郎, 綿貫豊

    日本鳥学会大会講演要旨集   2018   95  2018.09

    J-GLOBAL

  • オオセグロカモメとワシカモメの季節移動と通年の環境利用:漁港への高い依存性

    風間健太郎, 先崎啓究, 安武与樹クロス, 馬鋭, 橋本詩津久, 先崎愛子, 風間麻未, 西沢文吾, 綿貫豊

    日本鳥学会大会講演要旨集   2018   93  2018.09

    J-GLOBAL

  • The effects of nitrogen input by seabirds on nearshore ecosystems

    風間健太郎

    海洋と生物   40 ( 2 ) 184 - 190  2018.04

    CiNii J-GLOBAL

  • 北海道北部で繁殖するウミネコとオオセグロカモメに対する侵略的外来種アライグマの脅威

    風間麻未, 橋本詩津久, 林航平, 臼井平, 高畠孝宗, 村山良子, 風間健太郎

    日本鳥学会大会講演要旨集   2018  2018

    J-GLOBAL

  • 加速度計を用いたウミネコの採餌トリップ中の行動分類

    馬鋭, 風間健太郎, 塚本祥太, 風間麻未, 綿貫豊

    日本鳥学会大会講演要旨集   2018  2018

    J-GLOBAL

  • オジロワシの飛来頻度とカモメ捕食量

    橋本詩津久, 風間健太郎, 松田実希, 風間麻未, 高畠孝宗, 村山良子, 白木彩子, 綿貫豊

    日本鳥学会大会講演要旨集   2018  2018

    J-GLOBAL

  • 北海道礼文島トド島で繁殖するウトウの採餌海域

    安積紗羅々, 風間健太郎, 馬鋭, 風間麻未, 綿貫豊

    日本鳥学会大会講演要旨集   2018  2018

    J-GLOBAL

  • ウミネコの食性と採餌環境利用の性差

    風間健太郎, 西沢文吾, 塚本祥太, JORDI Gonzalez E, 風間麻未, 綿貫豊

    日本生態学会大会講演要旨(Web)   65th   ROMBUNNO.P2‐224 (WEB ONLY)  2018

    J-GLOBAL

  • Impact of marine wind farm on seabirds

    風間健太郎

    海洋と生物   39 ( 5 ) 430 - 435  2017.10

    CiNii J-GLOBAL

  • 抱卵期のウミネコの採餌環境利用の性差

    風間健太郎, 西沢文吾, 塚本祥太, GONZALEZ Jordi E, 風間麻未, 綿貫豊

    日本鳥学会大会講演要旨集   2017   71  2017.09

    J-GLOBAL

  • 水槽内のコサギによる陸上植栽への窒素供給を可視化する:水鳥が提供する生態系サービスの水族館における展示の可能性

    風間麻未, 風間健太郎

    日本鳥学会大会講演要旨集   2016  2016

    J-GLOBAL

  • 観光地における給餌による繁殖中のウミネコの栄養状態への影響

    加藤由佳, 新妻靖章, 水谷友一, 風間健太郎

    日本鳥学会大会講演要旨集   2015  2015

    J-GLOBAL

  • カワウ営巣地におけるアオサギによる非侵襲的餌略奪

    土屋健児, 風間健太郎, 新妻靖章

    日本鳥学会大会講演要旨集   2015  2015

    J-GLOBAL

  • ウミネコオスによる産卵前の配偶者防衛行動の効果とコスト

    風間健太郎, 風間健太郎, 浅井綾加, 風間麻未, 神藤定生, 新妻靖章, 綿貫豊

    日本鳥学会大会講演要旨集   2015  2015

    J-GLOBAL

  • 人工飼育下のカワガラス亜成鳥の摂餌量および体重変化量に対する外部気温の影響

    風間麻未, 風間健太郎, 風間健太郎

    日本鳥学会大会講演要旨集   2015  2015

    J-GLOBAL

  • 海鳥繁殖地を考慮した洋上風力発電建設アボイドマップの作成

    風間健太郎, 伊藤元裕, 橋本啓史, 先崎啓究, 長谷川理

    日本生態学会大会講演要旨集   60th  2013

    J-GLOBAL

  • ウミネコ集団営巣地における隣接個体間の血縁度と対補食者防衛強度の個体変異との関連

    風間健太郎, 風間健太郎, 浅井綾加, 浅井綾加, 神藤定生, 長谷川理, 新妻靖章, 綿貫豊

    日本鳥学会大会講演要旨集   2013  2013

    J-GLOBAL

  • ウミネコ集団営巣地における個体間の血縁関係

    浅井綾加, 浅井綾加, 風間健太郎, 風間健太郎, 神藤定生, 長谷川理, 新妻靖章, 綿貫豊

    日本鳥学会大会講演要旨集   2013  2013

    J-GLOBAL

  • 農耕地および沿岸生態系において海鳥が担う物質共給の役割

    風間健太郎, 風間健太郎

    日本鳥学会大会講演要旨集   2013  2013

    J-GLOBAL

  • ウミネコにおける求愛給餌が繁殖に与える影響

    永田瑞穂, 新妻靖章, 水谷友一, 風間健太郎

    日本鳥学会大会講演要旨集   2013  2013

    J-GLOBAL

  • ウミネコの非繁殖期の渡り移動と行動:繁殖した個体と繁殖を見送った個体との比較

    風間健太郎, 平田和彦, 山本誉士, 橋本啓史, 高橋晃周, 新妻靖章, TRATHAN P.N., 綿貫豊

    日本鳥学会大会講演要旨集   2012  2012

    J-GLOBAL

  • オキアミとイカナゴを給餌したウトウ雛の消化率と成長

    粂佑奈, 新妻靖章, 風間健太郎, 伊藤元裕, 山下麗, 綿貫豊

    日本鳥学会大会講演要旨集   2012  2012

    J-GLOBAL

  • 洋上風力発電が鳥類にもたらす影響

    風間健太郎

    日本生態学会大会講演要旨集   58th  2011

    J-GLOBAL

  • 人工飼育下のカワウ亜成鳥の摂餌量および体重増加量に対する外部気温の影響

    岩本麻未, 風間健太郎, 堀江俊介, 新妻靖章

    日本鳥学会大会講演要旨集   2011  2011

    J-GLOBAL

  • ウトウの産卵前の餌が卵容積に及ぼす影響

    鈴木優也, 伊藤元裕, 風間健太郎, 新妻靖章, 綿貫豊

    日本鳥学会大会講演要旨集   2011  2011

    J-GLOBAL

  • ウミネコが肥やす磯:糞由来窒素が営巣地直下の磯の海藻,植物プランクトン,および固着生物におよぼす影響

    風間健太郎, 都築一秀, 早川未祐, 村野宏達, 藤井英紀, 佐藤雅彦, 溝田智俊

    日本鳥学会大会講演要旨集   2011  2011

    J-GLOBAL

  • カワウが肥やす水田:営巣地に隣接する水田において糞由来窒素が草本類に与える影響

    風間健太郎, 都築一秀, 早川未祐, 村野宏達, 新妻靖章, 溝田智俊

    日本鳥学会大会講演要旨集   2011  2011

    J-GLOBAL

  • 繁殖期におけるウミネコの様々な行動の関連

    風間健太郎, 新妻靖章, 綿貫豊

    日本鳥学会大会講演要旨集   2010  2010

    J-GLOBAL

  • ウミネコの対捕食者防衛強度の個体変異:集団繁殖における機能と意義

    風間健太郎, 綿貫豊

    日本鳥学会大会講演要旨集   2009  2009

    J-GLOBAL

  • ウミネコのテロメア変化と年齢の関係

    水谷友一, 富田直樹, 風間健太郎, 成田憙一, 成田章, 高橋弘樹, 長谷川理, 新妻靖明

    日本鳥学会大会講演要旨集   2008  2008

    J-GLOBAL

  • ウミネコの巣防衛強度を決める要因

    風間健太郎, 綿貫豊

    日本鳥学会大会講演要旨集   2008  2008

    J-GLOBAL

  • 育雛初期におけるクロアシアホウドリの探索・採餌行動について

    原田知子, 出口智広, 風間健太郎, 鈴木創, 綿貫豊

    日本鳥学会大会講演要旨集   2008  2008

    J-GLOBAL

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Awards

  • Kuroda award

    2016.09   Ornithological Society of Japan  

    Winner: Kentaro Kazama

  • 技術者研究表彰

    2016.07   日本動物園水族館協会  

    Winner: 風間健太郎

Research Projects

  • オオセグロカモメの個体数急減要因の解明:人間活動起源の餌の影響評価

    文部科学省  科学研究費補助金(基盤C)

    Project Year :

    2019.04
    -
    2022.03
     

    風間健太郎

  • 変動する海洋環境下での海鳥による窒素供給が沿岸海洋生態系におよぼす影響の解明

    文部科学省  科学研究費補助金(特別研究員奨励費)

    Project Year :

    2013.04
    -
    2016.03
     

    風間健太郎

  • 海鳥の非繁殖期の生息地利用が繁殖期の生理状態や行動に及ぼす影響の解明

    文部科学省  科学研究費補助金(若手研究(B))

    Project Year :

    2014
    -
    2016
     

    風間 健太郎

  • 海鳥の糞による窒素供給が沿岸海洋生態系におよぼす影響の解明

    公益信託 ミキモト海洋生態研究助成基金

    Project Year :

    2012.04
    -
    2013.03
     

    風間健太郎

Presentations

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Specific Research

  • プラスチックゴミの海鳥巣への取り込みが巣内微環境に及ぼす影響

    2021   小高歩

     View Summary

     現在、流出したプラスチックによる海洋生態系の汚染が深刻化している。プラスチックが海鳥の巣材として利用されることで、湿度や温度など巣内の微環境が変化して孵化成功率やヒナの成長・生残に悪影響を与えることが懸念されるが、その実態は不明である。2021年6~8月に北海道利尻島と枝幸町において、3種の海鳥繁殖地で踏査により巣材中のプラスチックの種類、個数、重量を測定した。プラスチックを含む巣を継続的に観察し、巣内の湿度や温度を測定し、繁殖成功率や雛の死亡要因を記録した。調査の結果、巣材にプラスチックが大量に含まれると巣内の保温性が低下する可能性があることがわかった。

  • オオセグロカモメの人工環境利用が生理状態に及ぼす影響の解明

    2020  

     View Summary

    本研究では、オオセグロカモメは人工餌をどれほど利用しているか、その利用は個体の生残にどのような行動・生理的メカニズムで影響するか、について調べた。2020年はコロナウィルス感染拡大により主要な調査期間に野外調査を実施できなかった。そのため、本研究では2018年以前に北海道利尻島において装着され、2020年時点でも稼働していた遠隔データダウンロード式のGPSロガーデータを解析することで、本種の2020年における人工餌の利用頻度を明らかにした。また、緊急事態宣言が開けた6月より利尻島を訪れ、GPS装着個体の給餌行動を観察することにより、人工環境を利用した際に獲得した餌種を調べた。本種は繁殖期間中の採餌行動のうち9割近くを人工環境で行った。人工環境を訪れた際には底棲魚や底棲無脊椎動物を給餌した。これらの餌種は天然環境(海洋)で獲得したイカナゴなどの餌種に比べて単位重量あたりの栄養価が低かった。以上より、本種の人工環境における採餌効率は低いことが示唆され、人工環境への依存は本種の減少要因の一因になり得ることが推察された。

  • 日本における海鳥の海洋プラスチック汚染状況の把握:巣材への取り込み量調査

    2020  

     View Summary

    本研究では、北海道北部で繁殖する海鳥3種(ウミネコ、オオセグロカモメ、ウミウ)の巣材へのプラスチック取り込み状況を調べた。2020年6~8月に北海道利尻島と枝幸町において、3種の海鳥繁殖地で合計150巣を対象に踏査により巣材中のプラスチックの種類、個数、重量を測定した。 調査の結果、利尻、礼文、稚内で繁殖するオオセグロカモメの約80%、利尻と枝幸で繁殖するウミネコの約70%、および利尻で繁殖するウミウの約80%の巣にプラスチックが持ち込まれていた。プラスチックの多くは漁具であった。本研究により、近年欧州を中心に懸念が高まっている海鳥へのプラスチック汚染が、日本においても深刻であることが明らかとなった。これらのプラスチック汚染が、絡まりなど海鳥へいかなる死亡リスクをもたらしているかを今後明らかにする。

  • 日本におけるオオセグロカモメの個体数急減要因の解明

    2019  

     View Summary

    オオセグロカモメはここ20年ほどでその生息数を70~80%も急減させている。カモメ類は近年海洋環境の悪化にともない漁港や都市部において栄養価の低い人工餌をより多く利用するようになったといわれるが、その利用頻度や繁殖への影響は不明な点が多い。本研究では、本種の減少要因の一端を解明するため、動物装着型の小型GPS追跡技術によってオオセグロカモメの人工環境(漁港、廃棄物処理場、都市部)での採餌頻度を個体レベルで明らかにした。北海道利尻島において5個体にGPSを装着した結果、本種繁殖個体は昼夜を問わず70%以上もの時間を漁港で過ごしていることがわかった。また、ヒナへの給餌物の半分以上は、漁業廃棄物であった。

 

Syllabus

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Teaching Experience

  • 動物生態学

    早稲田大学eスクール  

    2019.04
    -
    Now
     

  • Environmental biology training

    Waseda University  

    2019.04
    -
    Now
     

  • Basic Ecology

    Waseda University  

    2019.04
    -
    Now
     

  • 保全生態学特論

    早稲田大学  

    2019.04
    -
    Now
     

  • Animal Ecology

    Waseda University  

    2019.04
    -
    Now
     

  • ブッダセミナー(特別講義)

    京都大学 霊長類学・ワイルドライフサイエンスリーディング大学院  

  • 科学の最前線と歴史

    名城大学農学部  

▼display all

 

Committee Memberships

  • 2022.02
    -
    Now

    海上保安庁  沈没した船舶等が海洋環境に及ぼす影響評価に関する アドバイザー

  • 2022.01
    -
    Now

    日本鳥学会  庶務幹事

  • 2021.10
    -
    Now

    経済産業省  洋上風力発電所アセスに係る検討委員会

  • 2021.08
    -
    Now

    環境省  エトピリカ保護増殖検討会

  • 2021.04
    -
    Now

    環境省  環境影響審査助言員

  • 2021.02
    -
    Now

    環境省  油等汚染事故の対応に係る分野別専門家

  • 2019.09
    -
    Now

    日本鳥学会  基金運営委員会

  • 2014.01
    -
    Now

    日本鳥学会  英文誌編集委員

  • 2019.06
    -
    2021.03

    環境省  風力発電にかかるゾーニング事業検討委員会

  • 2018.07
    -
    2019.03

    経済産業省  洋上風力発電所に係る環境影響評価検討委員会

  • 2015.07
    -
    2019.03

    環境省  洋上風力発電所等に係る環境影響評価の基本的な考え方に関する検討会委員

  • 2016.03
    -
    2018.03

    日本野鳥の会  風力発電に対する鳥類のセンシティビティマップ作りに関する検討会委員

  • 2013
     
     

    日本鳥学会  2013年度大会 事務局長

  • 2009
     
     

    日本鳥学会  2009年度大会 実行委員長 兼 事務局長

  • 2009
     
     

    Pacific Seabird Group  第36回年次大会 事務局

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