Search Results - "Kentaro Sakamoto"

Can ethograms be automatically generated using body acceleration data from free-ranging birds? by Sakamoto, Kentaro Q, Sato, Katsufumi, Ishizuka, Mayumi, Watanuki, Yutaka, Takahashi, Akinori, Daunt, Francis, Wanless, Sarah

“…An ethogram is a catalogue of discrete behaviors typically employed by a species. Traditionally animal behavior has been recorded by observing study…”
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Video and acceleration records of streaked shearwaters allows detection of two foraging behaviours associated with large marine predators by Garrod, Aran, Yamamoto, Sei, Sakamoto, Kentaro Q, Sato, Katsufumi

“…The study of seabird behaviour has largely relied on animal-borne tags to gather information, requiring interpretation to estimate at-sea behaviours. Details…”
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Heart rate reduction during voluntary deep diving in free-ranging loggerhead sea turtles by Saito, Ayaka, Kinoshita, Chihiro, Sakai, Kino, Sato, Katsufumi, Sakamoto, Kentaro Q

“…Air-breathing vertebrates exhibit cardiovascular responses to diving including heart rate reduction (diving bradycardia). Field studies on aquatic mammals and…”
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Towards non-invasive heart rate monitoring in free-ranging cetaceans: a unipolar suction cup tag measured the heart rate of trained Risso's dolphins by Aoki, Kagari, Watanabe, Yurie, Inamori, Daiki, Funasaka, Noriko, Sakamoto, Kentaro Q.

“…Heart rate monitoring in free-ranging cetaceans to understand their behavioural ecology and diving physiology is challenging. Here, we developed a simple,…”
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A non-invasive system to measure heart rate in hard-shelled sea turtles: potential for field applications by Sakamoto, Kentaro Q, Miyayama, Masaru, Kinoshita, Chihiro, Fukuoka, Takuya, Ishihara, Takashi, Sato, Katsufumi

“…To measure the heart rate of unrestrained sea turtles, it has been believed that a probe must be inserted inside the body owing to the presence of the shell…”
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Effects of a parasympathetic blocker on the heart rate of loggerhead sea turtles during voluntary diving by Saito, Ayaka, Kinoshita, Chihiro, Kawai, Megumi, Fukuoka, Takuya, Sato, Katsufumi, Sakamoto, Kentaro Q

“…Diving bradycardia is a reduction in the heart rate mediated by the parasympathetic system during diving. Although diving bradycardia is pronounced in aquatic…”
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Corticosterone Predicts Foraging Behavior and Parental Care in Macaroni Penguins by Crossin, Glenn T., Trathan, Phil N., Phillips, Richard A., Gorman, Kristen B., Dawson, Alistair, Sakamoto, Kentaro Q., Williams, Tony D.

“…Corticosterone has received considerable attention as the principal hormonal mediator of allostasis or physiological stress in wild animals. More recently, it…”
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A Non-Invasive Heart Rate Measurement Method Is Improved by Placing the Electrodes on the Ventral Side Rather Than the Dorsal in Loggerhead Turtles by Kinoshita, Chihiro, Saito, Ayaka, Kawai, Megumi, Sato, Katsufumi, Sakamoto, Kentaro Q

“…Heart rate measurement is an essential method for evaluating the physiological status of air-breathing diving animals. However, owing to technical…”
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Ocean wave observation utilizing motion records of seabirds by Uesaka, Leo, Goto, Yusuke, Yonehara, Yoshinari, Komatsu, Kosei, Naruoka, Masaru, Weimerskirch, Henri, Sato, Katsufumi, Sakamoto, Kentaro Q.

“…•A new ocean wave observation method using floating seabirds was developed.•GPS motion records of seabirds provide accurate information on the wave…”
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Application of Inertial and GNSS Integrated Navigation to Seabird Biologging by Naruoka, Masaru, Goto, Yusuke, Weimerskirch, Henri, Mukai, Takashi, Sakamoto, Taichi, Sakamoto, Kentaro Q., Sato, Katsufumi

“…The study demonstrates the versatility of integration of inertial navigation and global navigation satellite system (GNSS) with its unique application to…”
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From the eye of the albatrosses: a bird-borne camera shows an association between albatrosses and a killer whale in the Southern Ocean by Sakamoto, Kentaro Q, Takahashi, Akinori, Iwata, Takashi, Trathan, Philip N

“…Albatrosses fly many hundreds of kilometers across the open ocean to find and feed upon their prey. Despite the growing number of studies concerning their…”
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Fulminant type 1 diabetes associated with Isolated ACTH deficiency induced by anti-programmed cell death 1 antibody—insight into the pathogenesis of autoimmune endocrinopathy by Okahata, Sumie, Sakamoto, Kentaro, Mitsumatsu, Takako, Kondo, Yuko, Noso, Shinsuke, Ikegami, Hiroshi, Shiba, Teruo

“…Therapeutic blocking antibodies against programmed death 1 (PD1) and cytotoxic T-lymphocyte antigen 4 (CTLA4) are applied for advanced cancer therapy, but…”
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Overexpression of Monocyte Chemoattractant Protein-1 in Adipose Tissues Causes Macrophage Recruitment and Insulin Resistance by Kamei, Nozomu, Tobe, Kazuyuki, Suzuki, Ryo, Ohsugi, Mitsuru, Watanabe, Taku, Kubota, Naoto, Ohtsuka-Kowatari, Norie, Kumagai, Katsuyoshi, Sakamoto, Kentaro, Kobayashi, Masatoshi, Yamauchi, Toshimasa, Ueki, Kohjiro, Oishi, Yumiko, Nishimura, Satoshi, Manabe, Ichiro, Hashimoto, Haruo, Ohnishi, Yasuyuki, Ogata, Hitomi, Tokuyama, Kumpei, Tsunoda, Masaki, Ide, Tomohiro, Murakami, Koji, Nagai, Ryozo, Kadowaki, Takashi

“…Adipose tissue expression and circulating concentrations of monocyte chemoattractant protein-1 (MCP-1) correlate positively with adiposity. To ascertain the…”
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Relationship between frame rates and subpopulation structure of bovine sperm divided by their motility analyzed by a computer‐assisted sperm analysis system by Kanno, Chihiro, Sun‐Sik, Kang, Sakamoto, Kentaro Q., Yanagawa, Yojiro, Katagiri, Seiji, Nagano, Masashi

“…The authors investigated the relationship between frame rates and subpopulation structure of bovine sperm divided by their motility analyzed by a…”
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Scaling of soaring seabirds and implications for flight abilities of giant pterosaurs by Sato, Katsufumi, Sakamoto, Kentaro Q, Watanuki, Yutaka, Takahashi, Akinori, Katsumata, Nobuhiro, Bost, Charles-André, Weimerskirch, Henri

“…The flight ability of animals is restricted by the scaling effects imposed by physical and physiological factors. In comparisons of the power available from…”
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Heart rate as a proxy for estimating oxygen consumption rates in loggerhead turtles (Caretta caretta) by Kinoshita, Chihiro, Saito, Ayaka, Sakamoto, Kentaro Q, Niizuma, Yasuaki, Sato, Katsufumi

“…Heart rates of air-breathing diving animals can change on a short time scale due to the diving response during submergence. Heart rate is used frequently as a…”
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The effect of temperature acclimation on torpor expression pattern in mice by Kentaro Q. Sakamoto, Yuko Okamatsu-Ogura

“…[Abstract] Torpor is a hibernation like status which drops core body temperature, and continues for several hours. Although torpor is observed among a wide…”
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Accelerometers identify new behaviors and show little difference in the activity budgets of lactating northern fur seals (Callorhinus ursinus) between breeding islands and foraging habitats in the eastern Bering Sea by Battaile, Brian C, Sakamoto, Kentaro Q, Nordstrom, Chad A, Rosen, David A S, Trites, Andrew W

“…We tagged 82 lactating northern fur seals (Callorhinus ursinus) with tri-axial accelerometers and magnetometers on two eastern Bering Sea islands (Bogoslof and…”
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Female Mice Avoid Male Odor from the Same Strain via the Vomeronasal System in an Estrogen-Dependent Manner by Yano, Saori, Sakamoto, Kentaro Q, Habara, Yoshiaki

“…Inbreeding avoidance is essential to providing offspring with genetic diversity. Females' mate choice is more crucial than males' for successful reproduction…”
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The variability of muscle–blubber interface temperature with activity level in a captive Risso’s dolphin (Grampus griseus) by Sakai, Kino, Fukui, Daisuke, Shirouzu, Hiroshi, Watanabe, Yurie, Inamori, Daiki, Funasaka, Noriko, Aoki, Kagari, Sakamoto, Kentaro Q

“…Background To reduce heat loss underwater, marine mammals cover their bodies with insulation. Cetaceans in particular rely solely on blubber for insulation…”
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