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Article
Kentaro Kazama, Auteur ; Bungo Nishizawa, Auteur ; Shota Tsukamoto, Auteur ; Jordi E. Gonzalez, Auteur ; Mami T. Kazama, Auteur ; Yutaka Watanuki, AuteurSexual segregation in foraging habitats and associated diet differences have been reported in many seabirds. These sexual distinctions can be caused by differences in competitive ability or nutritional requirements. Here, we investigated the die[...]
Article
Fumi Hirose, Auteur ; Kentaro Kazama, Auteur ; Motohiro Ito, Auteur ; Yutaka Watanuki, AuteurIn 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 la[...]
Article
Kentaro Kazama, Auteur ; Kazuhiko Hirata, Auteur ; Takashi Yamamoto, Auteur ; Hiroshi Hashimoto, Auteur ; Akinori Takahashi, Auteur ; Yasuaki Niizuma, Auteur ; Philip N. Trathan, Auteur ; Yutaka Watanuki, AuteurLong-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-ta[...]
