顔写真

シオミ コズエ
塩見 こずえ
Kozue Shiomi
所属
高等研究機構学際科学フロンティア研究所 新領域創成研究部学際基盤研究分野 生命・環境研究領域
職名
助教
学位
  • 博士(農学)(東京大学)

  • 修士(情報学)(京都大学)

学歴 3

  • 東京大学大学院農学生命科学研究科 水圏生物科学専攻 博士課程

    2009年4月 ~ 2012年3月

  • 京都大学大学院情報学研究科 社会情報学専攻 修士課程

    2007年4月 ~ 2009年3月

  • 京都大学 農学部 資源生物科学科

    2003年4月 ~ 2007年3月

委員歴 2

  • 日本バイオロギング研究会 幹事

    2016年4月 ~ 継続中

  • 文部科学省 科学技術政策研究所 科学技術動向研究センター 専門調査員

    2015年4月 ~ 2020年3月

所属学協会 3

  • 日本進化学会

    2021年8月 ~ 継続中

  • 日本動物行動学会

  • 日本バイオロギング研究会

研究キーワード 8

  • 移動生態

  • 帰巣

  • ミズナギドリ

  • ナビゲーション

  • 認知生態

  • 海鳥

  • ペンギン

  • バイオロギング

研究分野 1

  • ライフサイエンス / 生態学、環境学 / 動物行動学

受賞 2

  1. 平成24年度岩手県三陸海域研究論文知事表彰 特別賞

    2013年3月 『三陸沿岸で繁殖する海鳥の洋上移動パターンの解明』

  2. 東京大学大学院農学生命科学研究科長賞

    2012年3月 『Decision time to return in seabirds: application of fine-scale movement data to decision-making analyses.』

論文 28

  1. Swirling flight of a seabird caught in a huge typhoon high over mainland Japan 査読有り

    Kozue Shiomi

    Ecology 2023年9月6日

    出版者・発行元:Wiley

    DOI: 10.1002/ecy.4161  

    ISSN:0012-9658

    eISSN:1939-9170

  2. Absence of Genetic Structure among Streaked Shearwaters Calonectris leucomelas Breeding in Japan, Despite Limited Dispersal Events 査読有り

    Miho Sakao, Tomoko Hamabata, Katsufumi Sato, Shinichi Watanabe, Ken Yoda, Kozue Shiomi

    Ornithological Science 22 (2) 2023年7月26日

    出版者・発行元:Ornithological Society of Japan

    DOI: 10.2326/osj.22.111  

    ISSN:1347-0558

  3. Stay the course: maintenance of consistent orientation by commuting penguins both underwater and at the water surface 査読有り

    Kozue Shiomi, Katsufumi Sato, Charles A. Bost, Yves Handrich

    170 (4) 2023年3月9日

    出版者・発行元:None

    DOI: 10.1007/s00227-023-04186-4  

    ISSN:0025-3162

    eISSN:1432-1793

  4. Possible link between brain size and flight mode in birds: Does soaring ease the energetic limitation of the brain? 国際誌 査読有り

    Kozue Shiomi

    Evolution 76 (3) 649-657 2022年3月

    出版者・発行元:Wiley

    DOI: 10.1111/evo.14425  

    ISSN:0014-3820

    eISSN:1558-5646

  5. Homing ability of Adélie penguins investigated with displacement experiments and bio-logging. 査読有り

    Shiomi K, Kokubun N, Shimabukuro U, Takahashi A

    Ardea 2019年12月

  6. Temporal and spatial determinants of route selection in homing seabirds 査読有り

    Shiomi K, Sato K, Katsumata N, Yoda K

    Behaviour 156 (11) 1165-1183 2019年6月

    出版者・発行元:None

    DOI: 10.1163/1568539X-00003560  

    ISSN:0005-7959

    eISSN:1568-539X

  7. Diel shift of king penguin swim speeds in relation to light intensity changes 査読有り

    Kozue Shiomi, Katsufumi Sato, Yves Handrich, Charles A. Bost

    MARINE ECOLOGY PROGRESS SERIES 561 233-243 2016年12月

    出版者・発行元:INTER-RESEARCH

    DOI: 10.3354/meps11930  

    ISSN:0171-8630

    eISSN:1616-1599

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    It is generall y expected that animals, including marine organisms, travel at speeds achieving the minimum energetic cost of transport. However, several factors cause variation in speeds within the energetically acceptable range. Light intensity is known to affect movement speeds in some flying and walking insects, which reduce speeds at low light levels. This is explained as compensation for degraded temporal resolution of vision in dim light by maintaining the rate of information gained per unit of travelling distance. Such a relationship between ambient light intensity and movement speeds is expected for any visual system in principle, but has not been examined in any marine species. As a mesopelagic forager, king penguins Aptenodytes patagonicus regularly commute between their breeding colonies and productive foraging areas over several hundreds of kilometres. During these trips, they experience a wide variation in light intensity between day and night, as well as within daylight hours, as dives often reach deeper than 100 m. The present study investigated diel patterns in the swim speeds of king penguins in relation to light intensity experienced within dives. King penguins gradually decreased their cruising speeds around dusk and increased them again around dawn. This resulted in consistently slower speeds in nocturnal dives. Correspondingly, the underwater light levels estimated were always higher in diurnal dives, even at depths greater than 100 m. The slower swim speeds after dusk may facilitate travelling and occasional prey detection in the dark. These results suggest that a common behavioural response to ambient light levels has evolved in different taxa of animals.

  8. Temporal tuning of homeward flights in seabirds 査読有り

    Kozue Shiomi, Ken Yoda, Nobuhiro Katsumata, Katsufumi Sato

    ANIMAL BEHAVIOUR 83 (2) 355-359 2012年2月

    出版者・発行元:ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD

    DOI: 10.1016/j.anbehav.2011.11.010  

    ISSN:0003-3472

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    Timing is crucial for animals for optimizing foraging, travelling and breeding behaviours in spatiotemporally heterogeneous environments. Some seabirds, commuting between land-based nesting colonies and widely dispersed foraging areas at sea, return to their colonies within several hours after sunset. This temporal pattern raises the question of how they manage to time arrivals over largely variable homeward distances. However, no study has investigated their at-sea behavioural patterns associated with arrival times. To explore this question, we tracked breeding streaked shearwaters, Calonectris leucomelas, with GPS data loggers, which continuously recorded fine-scale movement paths during their trips. Shearwaters adjusted the onset of their homeward journeys according to wide-ranging distances between their chosen foraging areas and breeding colonies, leaving earlier from further locations. The start time of homing was pushed forward correlating with the increased travel time expected from their homeward distance and average movement speed. This resulted in arrivals at the colony concentrated within a few hours after sunset independent of the distances. To our knowledge, similar temporal tuning of homing trips has not been reported previously. The strong correlation between the timing and distance of homeward journeys implies this behaviour is ecologically important. Further experiments will help clarify its generality in the animal kingdom as well as proximate mechanism(s) and ultimate function( s). (C) 2011 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.

  9. Point of no return in diving emperor penguins: is the timing of the decision to return limited by the number of strokes? 査読有り

    Kozue Shiomi, Katsufumi Sato, Paul J. Ponganis

    JOURNAL OF EXPERIMENTAL BIOLOGY 215 (1) 135-140 2012年1月

    出版者・発行元:COMPANY OF BIOLOGISTS LTD

    DOI: 10.1242/jeb.064568  

    ISSN:0022-0949

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    At some point in a dive, breath-hold divers must decide to return to the surface to breathe. The issue of when to end a dive has been discussed intensively in terms of foraging ecology and behavioral physiology, using dive duration as a temporal parameter. Inevitably, however, a time lag exists between the decision of animals to start returning to the surface and the end of the dive, especially in deep dives. In the present study, we examined the decision time in emperor penguins under two different conditions: during foraging trips at sea and during dives at an artificial isolated dive hole. It was found that there was an upper limit for the decision-to-return time irrespective of dive depth in birds diving at sea. However, in a large proportion of dives at the isolated dive hole, the decision-to-return time exceeded the upper limit at sea. This difference between the decision times in dives at sea versus the isolated dive hole was accounted for by a difference in stroke rate. The stroke rates were much lower in dives at the isolated hole and were inversely correlated with the upper limit of decision times in individual birds. Unlike the decision time to start returning, the cumulative number of strokes at the decision time fell within a similar range in the two experiments. This finding suggests that the number of strokes, but not elapsed time, constrained the decision of emperor penguins to return to the surface. While the decision to return and to end a dive may be determined by a variety of ecological, behavioral and physiological factors, the upper limit to that decision time may be related to cumulative muscle workload.

  10. Speed consensus and behavioural coordination of Adélie penguins travelling on sea ice in groups 査読有り

    Toshitaka Imaki, Nobuo Kokubun, Kozue Shiomi, Akinori Takahashi

    Animal Behaviour 208 1-17 2024年2月

    出版者・発行元:None

    DOI: 10.1016/j.anbehav.2023.11.014  

    ISSN:0003-3472

  11. King penguins adjust their fine-scale travelling and foraging behaviours to spatial and diel changes in feeding opportunities 国際誌 国際共著 査読有り

    Hina Watanabe, Kozue Shiomi, Katsufumi Sato, Akinori Takahashi, Yves Handrich, Charles-André Bost

    Marine Biology 170 (3) 2023年1月24日

    出版者・発行元:None

    DOI: 10.1007/s00227-022-04170-4  

    ISSN:0025-3162

    eISSN:1432-1793

  12. Foraging habitat and site selection do not affect feeding rates in European shags 国際誌 国際共著 査読有り

    Yutaka Watanuki, Katsufumi Sato, Kozue Shiomi, Sarah Wanless, Francis Daunt

    Journal of Experimental Biology 2023年

  13. Habitat selection and foraging site fidelity in Caspian Terns (Hydroprogne caspia) breeding in the Baltic Sea 査読有り

    Martin Beal, Patrik Byholm, Ulrik Lötberg, Tom Evans, Kozue Shiomi, Susanne Åkesson

    Ornis Fennica 2021年11月

  14. Plastic additives and legacy persistent organic pollutants in the preen gland oil of seabirds sampled across the globe 査読有り

    Rei YAMASHITA, Nagako HIKI, Fumika KASHIWADA, Hideshige TAKADA, Kaoruko MIZUKAWA, Britta Denise HARDESTY, Lauren ROMAN, David HYRENBACH, Peter G. RYAN, Ben J. DILLEY, Juan Pablo MUÑOZ-PÉREZ, Carlos A. VALLE, Christopher K. PHAM, João FRIAS, Bungo NISHIZAWA, Akinori TAKAHASHI, Jean-Baptiste THIEBOT, Alexis WILL, Nobuo KOKUBUN, Yuuki Y. WATANABE, Takashi YAMAMOTO, Kozue SHIOMI, Ui SHIMABUKURO, Yutaka WATANUKI

    Environmental Monitoring and Contaminants Research 1 97-112 2021年10月

    出版者・発行元:Japan Society for Environmental Chemistry

    DOI: 10.5985/emcr.20210009  

    eISSN:2435-7685

  15. Similar circling movements observed across marine megafauna taxa 査読有り

    Tomoko Narazaki, Itsumi Nakamura, Kagari Aoki, Takashi Iwata, Kozue Shiomi, Paolo Luschi, Hiroyuki Suganuma, Carl G. Meyer, Rui Matsumoto, Charles A. Bost, Yves Handrich, Masao Amano, Ryosuke Okamoto, Kyoichi Mori, Stéphane Ciccione, Jérôme Bourjea, Katsufumi Sato

    iScience 24 (4) 102221 2021年4月

    出版者・発行元:Elsevier BV

    DOI: 10.1016/j.isci.2021.102221  

    ISSN:2589-0042

  16. Sea-ice edge is more important than closer open water access for foraging Adélie penguins: evidence from two colonies 査読有り

    C Michelot, A Kato, T Raclot, K Shiomi, P Goulet, P Bustamante, Y Ropert-Coudert

    Marine Ecology Progress Series 640 215-230 2020年4月23日

    出版者・発行元:Inter-Research Science Center

    DOI: 10.3354/meps13289  

    ISSN:0171-8630

    eISSN:1616-1599

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    Sentinel species, like Adélie penguins, have been used to assess the impact of environmental changes, and their link with sea ice has received considerable attention. Here, we tested if foraging Adélie penguins from 2 colonies in East Antarctica target the distant sea-ice edge or take advantage of closer open waters that are readily available near their colony. We examined the foraging behaviour of penguins during the incubation trips of females in 2016 and males in 2017, using GPS tracking and diet data in view of daily sea-ice data and bathymetry. In 2016-2017, sea-ice cover was extensive during females’ trips but flaw leads and polynyas were close to both study sites. Sea ice receded rapidly during males’ trips in 2017-2018. Despite close open water near both colonies in both years, females and males preferentially targeted the continental slope and the sea-ice edge to forage. In addition, there was no difference in the diet of penguins from both colonies: all penguins fed mostly on Antarctic krill and males also foraged on Antarctic silverfish. Our results highlight the importance of the sea-ice edge for penguins, an area where food abundance is predictable. It is likely that resource availability was not sufficient in closer open water areas at such an early stage in the breeding season. The behaviours displayed by the penguins from both colonies were similar, suggesting a common behaviour across colonies in Terre Adélie, although additional sites would be necessary to confirm this hypothesis.

  17. 雉尾攷―日本書紀にみる赤気に関する一考察 査読有り

    片岡龍峰, 山本和明, 藤原康徳, 塩見こずえ, 國分亙彦

    総研大文化科学研究 (16) 17-28 2020年3月

  18. Two massive breeding failures in an Adélie penguins’ colony over four breeding seasons call for rapid decision on the creation of a Marine Protected Area in D’Urville Sea/Mertz 査読有り

    Yan Ropert-Coudert, Akiko Kato, Kozue Shiomi, Christophe Barbraud, Frédéric Angelier, Karine Delord, Timothée Poupart, Thierry Raclot

    Frontiers Marine Science - Marine Fisheries, Aquaculture and Living Resources 2018年7月

  19. Geographical variation in body size of a pelagic seabird, the streaked shearwater Calonectris leucomelas 査読有り

    Takashi Yamamoto, Hiroyoshi Kohno, Akira Mizutani, Ken Yoda, Sakiko Matsumoto, Ryo Kawabe, Shinichi Watanabe, Nariko Oka, Katsufumi Sato, Maki Yamamoto, Hisashi Sugawa, Kiyotaka Karino, Kozue Shiomi, Yoshinari Yonehara, Akinori Takahashi

    JOURNAL OF BIOGEOGRAPHY 43 (4) 801-808 2016年4月

    出版者・発行元:WILEY-BLACKWELL

    DOI: 10.1111/jbi.12654  

    ISSN:0305-0270

    eISSN:1365-2699

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    AimIn general, within temperate latitudes, races of endotherms tend to show larger body size at higher latitudes, while smaller bodied ones tend to be found at lower latitudes, a pattern known as Bergmann's rule (or James's rule for intra-specific patterns). The adaptive basis of this geographical variation in body size is explained mostly by the heat conservation hypothesis. Application of Bergmann's rule has been confirmed mostly among terrestrial taxa and studies of marine taxa are rare. Our aim was to examine whether the intra-specific variation in body size of a pelagic seabird species (streaked shearwater Calonectris leucomelas) follows Bergmann's/James's rule. LocationEight different breeding colonies of the streaked shearwater, ranging from 24-39 degrees N in latitude (approximately the full latitudinal range of the species) and 123-142 degrees E in longitude. MethodsWe measured morphological traits of 454 adult streaked shearwaters in total. Principal components analysis was used to create a composite body size index for each sex from each colony using the measured traits, and the value of first principal component was compared. The relationships between body size index and latitude, longitude and the averaged mean air temperature were examined using generalized linear models. ResultsBody size was positively correlated with latitude and longitude, and negatively correlated with the mean air temperature. Latitude and longitude were highly correlated with air temperature. Nonetheless, between colonies, populations that are considered to forage over large areas appeared to exhibit smaller body size than those of lower latitude populations. Main conclusionThe overall trend of the geographical variations in body size of streaked shearwaters followed Bergmann's/James's rule, suggesting that this rule may be applicable to seabirds. However, in addition to thermoregulatory adaptation, intra-specific differences in foraging characteristic in relation to local marine environment might also affect the body size in highly mobile seabirds.

  20. Seasonal distributions of Caspian Terns Hydroprogne caspia from Swedish populations revealed by recoveries and resightings of ringed birds. 査読有り

    Shiomi, K, Lötberg, U, Åkesson, S

    Ringing & Migration 30 (1) 22-36 2015年7月

    DOI: 10.1080/03078698.2015.1059637  

  21. Foraging spots of streaked shearwaters in relation to ocean surface currents as identified using their drift movements 査読有り

    Ken Yoda, Kozue Shiomi, Katsufumi Sato

    PROGRESS IN OCEANOGRAPHY 122 54-64 2014年3月

    出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD

    DOI: 10.1016/j.pocean.2013.12.002  

    ISSN:0079-6611

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    Ocean currents are in continuous motion and strongly influence oceanic ecosystems. In situ observation of currents is of primary importance for understanding how marine animals respond to ocean surface currents at various scales and for realizing effective ecosystem-based management and realistic oceanographic modelling. We developed a new method for obtaining in situ current measurements by using seabirds as Lagrangian current sensors akin to drifting buoys. We deployed high-resolution global positioning system (GPS) loggers on streaked shearwaters (Calonectris leucomelas) foraging in the Oyashio-Tsugaru Warm Current confluence in Japan, which is one of the most productive oceans in the world. The seabirds repeatedly performed foraging trips, including searching for prey and resting on the sea surface, over several hundred kilometres. The seabirds spent half of their time resting on the water surface and tended to be passive drifters. We inferred that the drift movements of C. leucomelas provided a direct and detailed description of the ocean surface currents, because currents deduced from their drift movements were in good agreement with ocean surface currents derived from in situ and satellite data. In addition, we extracted details of shearwaters' intense searching flights associated with feeding (i.e. foraging spots) from GPS tracks. C leucomelas did not forage at the core of anticyclonic eddies; rather, they used the boundary areas between eddies and the edge of eddies where primary productivity and prey density are thought to be high. Our study demonstrated that animal-borne GPS data can provide a detailed and cost-efficient tool for observing ocean surface currents and can reveal the ways in which marine animals respond to these currents at a fine scale. (C) 2013 Elsevier Ltd. All rights reserved.

  22. Contaminants in tracked seabirds showing regional patterns of marine pollution 査読有り

    Atsuo Ito, Rei Yamashita, Hideshige Takada, Takashi Yamamoto, Kozue Shiomi, Carlos Zavalaga, Tomoya Abe, Shinichi Watanabe, Maki Yamamoto, Katsufumi Sato, Hiroyoshi Kohno, Ken Yoda, Tomohiko Iida, Yutaka Watanuki

    Environmental Science and Technology 47 (14) 7862-7867 2013年7月16日

    DOI: 10.1021/es4014773  

    ISSN:0013-936X 1520-5851

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    Ocean-scale monitoring of pollution is challenging. Seabirds are useful indicators because they travel over a broad foraging range. Nevertheless, this coarse spatial resolution is not fine enough to discriminate pollution in a finer scale. Previous studies have demonstrated that pollution levels are higher in the Sea of Japan and South and East China Seas than the Northen Pacific Ocean. To test these findings in a wide-ranging animal, we tracked streaked shearwaters (Calonectris leucomelas) from four islands in Japan using global positioning system (GPS) and measured persistent organic pollutants (POPs) in the oil of their preen glands. The POPs did not change during 6 to 21 days when birds from Awashima were foraging only in the Sea of Japan, while it increased when they crossed to the Pacific through the Tsugaru Strait and foraged along the eastern coast of Hokkaido where industrial cities occur. These results indicate that POPs in the oil reflect relatively short-term exposure. Concentrations of POPs displayed greater variation among regions. Total polychlorinated biphenyls were highest in birds foraging in a small area of the semiclosed Seto Inland Sea surrounded by urbanized coast, p,p″- dichlorodiphenyltrichloroethane (DDT) was highest in birds foraging in the East China Sea, and total hexachlorocyclohexanes were highest in birds foraging in the Sea of Japan. All were lowest in birds foraging in the Pacific. This distribution of POPs concentration partly agrees with previous findings based on mussels, fish, and seawater and possibly reflects the mobility and emission sources of each type of POP. These results highlight the importance of information on the foraging area of highly mobile top predators to make them more effective monitors of regional marine pollution. © 2013 American Chemical Society.

  23. Muscle Energy Stores and Stroke Rates of Emperor Penguins: Implications for Muscle Metabolism and Dive Performance 査読有り

    Cassondra L. Williams, Katsufumi Sato, Kozue Shiomi, Paul J. Ponganis

    PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY 85 (2) 120-133 2012年3月

    出版者・発行元:UNIV CHICAGO PRESS

    DOI: 10.1086/664698  

    ISSN:1522-2152

    eISSN:1537-5293

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    In diving birds and mammals, bradycardia and peripheral vasoconstriction potentially isolate muscle from the circulation. During complete ischemia, ATP production is dependent on the size of the myoglobin oxygen (O-2) store and the concentrations of phosphocreatine (PCr) and glycogen (Gly). Therefore, we measured PCr and Gly concentrations in the primary underwater locomotory muscle of emperor penguin and modeled the depletion of muscle O-2 and those energy stores under conditions of complete ischemia and a previously determined muscle metabolic rate. We also analyzed stroke rate to assess muscle workload variation during dives and evaluate potential limitations on the model. Measured PCr and Gly concentrations, 20.8 and 54.6 mmol kg(-1), respectively, were similar to published values for nondiving animals. The model demonstrated that PCr and Gly provide a large anaerobic energy store, even for dives longer than 20 min. Stroke rate varied throughout the dive profile, indicating muscle workload was not constant during dives as was assumed in the model. The stroke rate during the first 30 s of dives increased with increased dive depth. In extremely long dives, lower overall stroke rates were observed. Although O-2 consumption and energy store depletion may vary during dives, the model demonstrated that PCr and Gly, even at concentrations typical of terrestrial birds and mammals, are a significant anaerobic energy store and can play an important role in the emperor penguin's ability to perform long dives.

  24. Stroke rates and diving air volumes of emperor penguins: implications for dive performance 査読有り

    Katsufumi Sato, Kozue Shiomi, Greg Marshall, Gerald L. Kooyman, Paul J. Ponganis

    JOURNAL OF EXPERIMENTAL BIOLOGY 214 (17) 2854-2863 2011年9月

    出版者・発行元:COMPANY OF BIOLOGISTS LTD

    DOI: 10.1242/jeb.055723  

    ISSN:0022-0949

    eISSN:1477-9145

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    Emperor penguins (Aptenodytes forsteri), both at sea and at an experimental dive hole, often have minimal surface periods even after performance of dives far beyond their measured 5.6 min aerobic dive limit (ADL: dive duration associated with the onset of post-dive blood lactate accumulation). Accelerometer-based data loggers were attached to emperor penguins diving in these two different situations to further evaluate the capacity of these birds to perform such dives without any apparent prolonged recovery periods. Minimum surface intervals for dives as long as 10 min were less than 1 min at both sites. Stroke rates for dives at sea were significantly greater than those for dives at the isolated dive hole. Calculated diving air volumes at sea were variable, increased with maximum depth of dive to a depth of 250 m, and decreased for deeper dives. It is hypothesized that lower air volumes for the deepest dives are the result of exhalation of air underwater. Mean maximal air volumes for deep dives at sea were approximately 83% greater than those during shallow (<50 m) dives. We conclude that (a) dives beyond the 5.6. min ADL do not always require prolongation of surface intervals in emperor penguins, (b) stroke rate at sea is greater than at the isolated dive hole and, therefore, a reduction in muscle stroke rate does not extend the duration of aerobic metabolism during dives at sea, and (c) a larger diving air volume facilitates performance of deep dives by increasing the total body O-2 store to 68 ml O-2 kg(-1). Although increased O-2 storage and cardiovascular adjustments presumably optimize aerobic metabolism during dives, enhanced anaerobic capacity and hypoxemic tolerance are also essential for longer dives. This was exemplified by a 27.6 min dive, after which the bird required 6 min before it stood up from a prone position, another 20 min before it began to walk, and 8.4 h before it dived again.

  25. Scaling of swim speed and stroke frequency in geometrically similar penguins: they swim optimally to minimize cost of transport 査読有り

    Katsufumi Sato, Kozue Shiomi, Yuuki Watanabe, Yutaka Watanuki, Akinori Takahashi, Paul J. Ponganis

    PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 277 (1682) 707-714 2010年3月

    出版者・発行元:ROYAL SOC

    DOI: 10.1098/rspb.2009.1515  

    ISSN:0962-8452

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    It has been predicted that geometrically similar animals would swim at the same speed with stroke frequency scaling with mass(-1/3). In the present study, morphological and behavioural data obtained from free-ranging penguins (seven species) were compared. Morphological measurements support the geometrical similarity. However, cruising speeds of 1.8-2.3 m s(-1) were significantly related to mass(0.08) and stroke frequencies were proportional to mass(-0.29). These scaling relationships do not agree with the previous predictions for geometrically similar animals. We propose a theoretical model, considering metabolic cost, work against mechanical forces (drag and buoyancy), pitch angle and dive depth. This new model predicts that: (i) the optimal swim speed, which minimizes the energy cost of transport, is proportional to (basal metabolic rate/drag)(1/3) independent of buoyancy, pitch angle and dive depth; (ii) the optimal speed is related to mass(0.05); and (iii) stroke frequency is proportional to mass(-0.28). The observed scaling relationships of penguins support these predictions, which suggest that breath-hold divers swam optimally to minimize the cost of transport, including mechanical and metabolic energy during dive.

  26. Data-processing artefacts in three-dimensional dive path reconstruction from geomagnetic and acceleration data 査読有り

    Kozue Shiomi, Tomoko Narazaki, Katsufumi Sato, Kenichiro Shimatani, Nobuaki Arai, Paul J. Ponganis, Nobuyuki Miyazaki

    AQUATIC BIOLOGY 8 (3) 299-304 2010年

    出版者・発行元:INTER-RESEARCH

    DOI: 10.3354/ab00239  

    ISSN:1864-7790

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    Tr-axis magnetism and acceleration data loggers have recently been used to obtain time-series headings and, consequently, the 3-dimensional dive paths of aquatic animals. However, problems may arise in the resulting calculation process with multiple parameters. In this study, the dive paths of loggerhead turtles and emperor penguins were reconstructed. For both species, apparently unrealistic movements were found. Time-series heading data of turtles showed small regular fluctuations synchronous with stroking. In the dive paths of penguins, infrequent abrupt changes in heading were observed during stroke cycles. These were unlikely to represent true behaviours according to observations of underwater behaviour and tri-axis magnetism and acceleration data. Based on the relationship between sampling frequency and frequency of body posture change, we suggest that (1) the changes in the animals' posture concurrent with strokes and (2) the mismatched treatment (i.e. filtering and non-filtering) of the acceleration and magnetism data caused the artefacts. These inferences are supported by the results of simulations. For data sets obtained at a given sampling frequency, the error pattern in calculated dive paths is likely to differ depending on the frequency and amplitude of body posture changes and in swim speed. In order to avoid misinterpretation, it is necessary to understand the assumptions and inherent problems of the calculation methods as well as the behavioural characteristics of the study animals.

  27. Distribution of emperor penguins' dive distribution under the fast sea ice. 査読有り

    Shiomi, K, Sato, K, Arai, N, Naito, Y, Ponganis, P.J

    Proceedings of the 4th International Symposium on SEASTAR 2000 and Asian Bio-logging Science (The 8th SEASTAR2000 workshop) 89-91 2009年

  28. Effect of ocean current on the dead-reckoning estimation of 3-D dive paths of emperor penguins 査読有り

    Kozue Shiomi, Katsufumi Sato, Hiromichi Mitamura, Nobuaki Arai, Yasuhiko Naito, Paul J. Ponganis

    AQUATIC BIOLOGY 3 (3) 265-270 2008年

    出版者・発行元:INTER-RESEARCH

    DOI: 10.3354/ab00087  

    ISSN:1864-7790

    eISSN:1864-7782

    詳細を見る 詳細を閉じる

    The dead-reckoning technique is a useful method for obtaining 3-D movement data of aquatic animals. However, such positional data include an accumulative error. Understanding the source of the error is important for proper data interpretation. In order to determine whether ocean currents affect dive paths calculated by dead-reckoning, as has previously been hypothesized, we examined the directions of the estimated positions relative to the known real points (error direction) and the relationship between the error direction and the current direction. 3-D dive paths of emperor penguins Aptenodytes forsteri diving at isolated dive holes in eastern McMurdo Sound were reconstructed by dead-reckoning, and the net error and error direction were calculated. The net error correlated positively with the dive duration. The error directions were not distributed uniformly, and the mean error direction tended to be north of the starting point of dives. Because there was a southward-flowing current in eastern McMurdo Sound, the ocean current was likely to affect the calculated dive paths. Therefore, the method of error correction generally used, in which the net error divided by the dive duration is applied to each estimated position, is realistically appropriate, provided that the current does not change significantly during a dive.

︎全件表示 ︎最初の5件までを表示

書籍等出版物 10

  1. 『生物の科学 遺伝』2023年7月号

    竹田山原楽, 藤橋さやか, 米井小百合, 塩見こずえ, 田村宏治

    NTS Inc. 2023年7月

  2. 『生物の科学 遺伝』2019年1月号

    塩見 こずえ

    2019年1月

  3. 『生物の科学 遺伝』2017年11月号

    塩見 こずえ, 依田憲

    2017年11月

  4. 月刊海洋『大水薙鳥 −外洋性海鳥の研究最前線−(下)』

    塩見こずえ, 米原善成, 後藤佑介, 坂尾美帆, 佐藤克文

    海洋出版株式会社 2016年10月

  5. 月刊海洋『大水薙鳥 −外洋性海鳥の研究最前線−(上)』

    塩見 こずえ

    海洋出版株式会社 2016年9月

  6. 『バイオロギング2 動物たちの知られざる世界を探る』

    塩見 こずえ

    京都通信社 2016年8月

  7. Ny teknik avslöjar fåglars rörelsemönster (New technology reveals the birds' movement patterns).

    Susanne Åkesson, Arne Andersson, Guiseppe Bianco, Tom Evans, Natalie Isaksson, Ewa Karaszewska, Kozue Shiomi, Ulrik Lötberg, Lennart Söderlund

    Vår Fågelvärld 2015年

  8. 『科学』 2012年8月号

    塩見こずえ

    岩波書店 2012年8月

  9. 『生物の科学 遺伝』2010年5月号

    塩見こずえ

    NTS Inc. 2010年5月

  10. 『動物たちの不思議に迫るバイオロギング』

    塩見こずえ

    京都通信社 2009年

︎全件表示 ︎最初の5件までを表示

講演・口頭発表等 17

  1. 晩成鳥における個体発生に伴う脳の形態変化

    大西侑生, 伊澤栄一, 塩見こずえ, 佐野瑞穂, 武田航, 小山偲歩, 依田憲, 河部壮一郎

    古生物学会 2024年1月

  2. ムカデにおける移動パターン発現原理の探求 招待有り

    塩見こずえ, 安井浩太郎

    統計数理研究所・共同利用研究集会 ISMCRP5013「統計モデル・数理生物学と動物行動データ」 2023年12月

  3. Towards understanding embodied navigation mechanisms in centipedes

    Kotaro Yasui, Kozue Shiomi

    日本比較生理生化学会 第45回大阪大会 2023年12月

  4. バイオロギング×多義的メカニクス? 招待有り

    塩見こずえ

    OS23:「多義的」身体と運動知能, 第41回日本ロボット学会学術講演会 2023年9月

  5. Centipede-inspired active sensing mechanism for exploratory navigation using antennal and body bending motion 国際会議

    Kotaro Yasui, Kozue Shiomi

    the 2023 SICE Annual Conference (SICE) 2023年9月

  6. アデリーペンギンの採餌トリップにみられる集団的行動

    今木 俊貴, 國分 亙彦, 塩見 こずえ, 高橋 晃周

    日本生態学会 2023年3月

  7. 鳥のバイオロギングデータが教えてくれること

    塩見こずえ

    第18回日本バイオロギング研究会シンポジウム 高校生・大学生向け講演会 2022年11月26日

  8. Biologging reveals behavioral coordination of Adélie penguins traveling in groups.

    Toshitaka Imaki, Nobuo Kokubun, Kozue Shiomi, Akinori Takahashi

    The 13th Symposium on Polar Science 2022年11月16日

  9. King penguins adjust their fine-scale traveling and foraging behaviors to spatial and diel changes in feeding opportunities.

    Hina Watanabe, Kozue Shiomi, Katsufumi Sato, Akinori Takahashi, Yves Handrich, Charles-André Bost

    The 13th Symposium on Polar Science 2022年11月16日

  10. Possible link between brain size and flight mode in birds: Does soaring ease the energetic limitation of the brain? 招待有り

    Kozue Shiomi

    3rd OIST-Tohoku University Joint Workshop on Biodiversity: From Genes and Species to Ecosystem Services and Resilience 2022年10月25日

  11. King penguins adjust their fine-scale traveling and foraging behaviors to spatial and diel changes in feeding opportunities.

    Hina Watanabe, Kozue Shiomi, Katsufumi Sato, Akinori Takahashi, Yves Handrich, Charles-André Bost

    10th SCAR OPEN SCIENCE CONFERENCE 2022年8月

  12. ペンギンが見ている世界を探る: フェアリーペンギンの視覚研究 招待有り

    塩見こずえ, Mindaugas Mitkus

    ペンギンの秘密にせまる!〜水族園で取組む最新の研究〜 2021年12月12日

  13. バイオロギングによる動物の移動追跡 招待有り

    塩見こずえ

    ダイナミクスと制御研究会 2021年11月16日

  14. Similar circling movements observed across marine megafauna taxa 国際会議

    Tomoko Narazaki, Itsumi Nakamura, Kagari Aoki, Takashi Iwata, Kozue Shiomi, Paolo Luschi, Hiroyuki Suganuma, Carl G. Meyer, Rui Matsumoto, Charles A. Bost, Yves Handrich, Masao Amano, Ryosuke Okamoto, Kyoichi Mori, Stéphane Ciccione, Jérôme Bourjea, Katsufumi Sato

    The 7th International Bio-logging Science Symposium 2021年10月

  15. バイオロギング研究から動物の「知能」について考えてみた 招待有り

    塩見こずえ

    身体性認知科学と実世界応用に関する若手研究会 2021年10月2日

  16. Possible links between movement ecology and brain morphology in birds 国際会議 招待有り

    Kozue Shiomi

    "Toward an integration of fluids, ecology, and evolution" in Biofluids 2021 2021年7月7日

  17. 鳥類の脳サイズと飛行様式の関係

    塩見こずえ

    日本動物学会東北支部大会 2020年12月6日

︎全件表示 ︎最初の5件までを表示

共同研究・競争的資金等の研究課題 11

  1. 飛翔性動物の流体内移動分散モデルの開発とそれに基づく新しい生態系管理技術の構築

    依田 憲, 塩見 こずえ, 飛龍 志津子, 山本 誉士, 吉田 聡, 山本 麻希

    2022年4月1日 ~ 2026年3月31日

  2. 鳥類の脳サイズと移動生態の進化的繋がり:種間および種内での比較解析による検証

    塩見 こずえ, 河部 壮一郎, 依田 憲

    提供機関:Japan Society for the Promotion of Science

    制度名:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    研究種目:Grant-in-Aid for Scientific Research (B)

    研究機関:Tohoku University

    2021年4月1日 ~ 2025年3月31日

  3. 鳥類の飛行モード進化に関わる遺伝的メカニズムの解明

    2022年4月 ~ 2023年3月

  4. 外洋性海鳥の帰巣行動に関する認知生態研究:種内・種間比較に基づく統合的アプローチ 競争的資金

    塩見 こずえ

    2017年4月1日 ~ 2021年3月31日

    詳細を見る 詳細を閉じる

    本研究の目的は、海鳥(ミズナギドリ科Calonectris属)が繁殖地から数百km離れた外洋の餌場から巣へ帰り着くプロセスと、その帰巣パターンがどのような外的・内的制約の下で形成されてきたかを解明することである。帰巣経路や知覚特性(視覚・嗅覚)を、地理的条件や移動距離が大きく異なる環境で繁殖する個体群間および種間で比較することによって、帰巣に必要な環境条件や認知メカニズムを探る。2019年度は、以下の成果を得た。 <BR> 1) 伊豆諸島御蔵島で繁殖するオオミズナギドリ計10羽にGPSロガーを装着し、約1ヶ月間の移動経路を記録した。これにより、1000 km 以上離れた餌場から数日かけて帰巣するという御蔵島個体群特有の経路データを取得した。さらに、GPSロガーを装着した2羽をフェリーで運搬し、繁殖地から約100km離れた場所から放鳥して帰巣経路を記録した。2)ウェブ上に公開されている鳥類の脳体積データを用いて、種間比較解析をおこなった。

  5. 多次元バイオロギングによる鳥類・魚類の長距離ナビゲーション行動の包括的理解

    依田 憲, 牧口 祐也, 塩見 こずえ

    提供機関:Japan Society for the Promotion of Science

    制度名:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    研究種目:Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    研究機関:Nagoya University

    2016年6月30日 ~ 2021年3月31日

    詳細を見る 詳細を閉じる

    1) 次世代バイオロギングシステム開発 ■多次元計測(GPS、ビデオカメラ、深度、加速度等)・イベント駆動機構を備えたロギングデバイス「ログボット」を開発し、野生の海鳥に適用し、論文発表した(Korpela et al. Comm Biol 2020)。■ロギングデバイスの遠隔回収システムの開発を行い、論文発表した(Abe et al. Adv Robotics 2021)。 2) 野外調査 ■動物のナビゲーションデータを取得し、行動・体内・環境情報とナビゲーションの関係を理解可能にする数理モデルを作成するため、オオミズナギドリとウミネコなどに対してバイオロギング調査を行った(合計で約90個体)。なお、コロナ禍のため、例年行っていた海外の海鳥類の調査は行わなかった。■サクラマスの雌が雄に対する選好性を明らかにする目的で、Y字水路を用いて雌の選択行動を計測した。また、サケのベーリング海から日本へのルートを探るため、15個体にロガーを装着して放流した。 3) データ解析および数理モデル作成 ■データ科学班・神経科学班・公募班と共同し、属性(鳥類では性差)による移動経路の違いを検出する手法を開発した(Maekawa et al. Nat Comm 2020)。■オオミズナギドリの巣立ち幼鳥が年によって異なる渡り経路をとることを明らかにした(Yoda et al. Ecology 2021)。■養殖ニジマスに脳神経活動ロガーを装着する手法を確立し、発表した(Takahashi et al. Anim Biotel 2021)。

  6. ベーリング海北部の環境変動と人間活動が高次捕食動物に与える影響の評価

    高橋 晃周, 塩見 こずえ, 國分 亙彦, 綿貫 豊

    提供機関:Japan Society for the Promotion of Science

    制度名:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    研究種目:Grant-in-Aid for Scientific Research (A)

    研究機関:National Institute of Polar Research

    2016年4月1日 ~ 2020年3月31日

    詳細を見る 詳細を閉じる

    ベーリング海北部の環境変動と人間活動が海鳥類に与える影響を評価することを目的に、アラスカ・セントローレンス島の海鳥の行動生態を2016-2019年に調査した。ベーリング海の冬の海氷面積が記録的に少なかった2018、2019年には、海鳥の繁殖成績が極端に低下し、また成鳥の大量死が発生したことが明らかになった。海氷が少ない年には海鳥の血中のストレスホルモン濃度が高くなり、海氷の減少が食物網の変化を通じて海鳥の栄養状態に影響していることが明らかになった。GPS記録計で調査した海鳥の行動範囲は、島周辺に設定された船舶航行を回避すべき区域より大きく、今後の船舶航行増加の影響が懸念されることが示された。

  7. 動物学・流体力学・ロボット工学の融合による鳥類の形態進化研究と動物型ロボット設計への応用:「野生動物工学」分野の創成 競争的資金

    塩見 こずえ

    2017年7月 ~ 2020年3月

  8. 「海鳥の採餌行動を指標とした海洋生態系モニタリング手法の確立」 競争的資金

    塩見こずえ

    2013年4月 ~ 2015年3月

  9. 「移動経路の時空間解析に基づく海鳥の帰巣戦略研究」 競争的資金

    塩見こずえ

    2013年4月 ~ 2014年3月

  10. 繁殖期における海鳥の帰島時刻および帰島開始時刻に関わる制約 競争的資金

    塩見 こずえ

    2011年4月 ~ 2012年

    詳細を見る 詳細を閉じる

    本研究の目的は、外洋性鳥類であるオオミズナギドリが餌場である海から営巣地である島に戻り始めるタイミングや島に到着するタイミングが、どのような要因に左右されているかを明らかにすることである。 岩手県下閉伊郡山田町船越大島にあるオオミズナギドリの繁殖地で、育雛中の親鳥16羽にGPSデータロガー(Technosmart社製、イタリア)を装着した。このロガーは各時点での緯度経度を誤差数mの精度で記録する。装着から約1週間後に回収作業を開始し、供試個体の再捕獲とロガーの回収を行った。これにより、採餌トリップ中の経路データを取得することができた。実験で得られたデータは現在解析中で、自然環境下での親鳥の帰島行動の特性を明らかにしていくことを目指している。 さらに、親鳥が島に戻る適切なタイミングを知る手がかりやナビゲーションメカニズムを明らかにすることを目的に、GPSロガーを装着した親鳥15羽を人為的に島から約130km離れた沖まで船で運び、放鳥する実験を行った。放鳥地点は島の北東、東、南東の3パターン設定した。放鳥後は島で待機し、戻ってきた放鳥個体を再捕獲してロガーを回収した。強制的に条件を変えた場合の帰島経路データを時間・空間両方の観点から解析することで、野生の海鳥の帰島メカニズムの解明を目指す。 これまでの実験で得られた移動経路データから、オオミズナギドリは日没後数時間以内に繁殖地に到着できるよう、島へ戻り始めるタイミングを遠くにいるときほど早めていたことが明らかとなった。このような移動タイミングの先見的な調整がなぜ行われているのかに着目してデータを解析した結果、島に帰るオオミズナギドリは、夜間の洋上移動を避けようとしていたことが示唆された。つまり、日没までに洋上移動を終えるために、島までの距離に応じて帰り始める時刻を調節していた可能性が高い。

  11. 「エンペラーペンギンにおける浮力に応じた遊泳深度調節に関する研究」 競争的資金

    塩見こずえ

    2008年4月 ~ 2009年3月

︎全件表示 ︎最初の5件までを表示