Variation in sexual behaviors in a group of captive male Yangtze finless porpoises (Neophocaena phocaenoides asiaeorientalis): Motivated by physiological changes?

Wu, Hai-Ping; Hao, Yu-Jiang; Yu, Xue-Ying; Xian, Yi-Jie; Zhao, Qing-Zhong; Chen, Dao-Quan; Kuang, Xin-An; Kou, Zhang-Bin; Feng, Kang-Kang; Gong, Wei-Ming; Wang, Ding
Theriogenology (2010)

Most male mammals in temperate regions demonstrate seasonal sexual behaviors that coincide with seasonal variations in gonadal activities and androgen hormones. The Yangtze finless porpoise is a temperate freshwater cetacean…


A field effort to capture critically endangered vaquitas Phocoena sinus for protection from entanglement in illegal gillnets

Rojas-Bracho, L.; Gulland, F. M. D.; Smith, C. R.; Taylor, B.; Wells, R. S.; Thomas, P. O.; Bauer, B.; Heide-Jørgensen, M. P.; Teilmann, J.; Dietz, R.; Balle, J. D.; Jensen, M. V.; Sinding, M. H. S.; Jaramillo-Legorreta, A.; Abel, G.; Read, A. J.; Westgate, A. J.; Colegrove, K.; Gomez, F.; Martz, K.; Rebolledo, R.; Ridgway, S.; Rowles, T.; van Elk, C. E.; Boehm, J.; Cardenas-Hinojosa, G.; Constandse, R.; Nieto-Garcia, E.; Phillips, W.; Sabio, D.; Sanchez, R.; Sweeney, J.; Townsend, F.; Vivanco, J.; Vivanco, J. C.; Walker, S.
Endangered Species Research (2019)

In 2017 an emergency field effort was undertaken in an attempt to prevent the extinction of the world’s most endangered marine mammal, the vaquita (Phocoena sinus). The rescue effort involved…


Agonistic interactions and dominance relationships in three groups of captive odontocetes: Method of assessment and inter-species/group comparison

Serres, Agathe; Hao, Yujiang; Wang, Ding
Aquatic Mammals (2019)

Social group dynamics are known to impact odontocetes’ health and welfare in captivity. Social dominance and agonistic interactions that occur to establish and maintain these relationships might express themselves differently…


The frequency of solitary behaviours in captive odontocetes is modulated by environmental and social factors

Serres, Agathe; Hao, Yujiang; Wang, Ding
International Journal of Comparative Psychology (2019)

The number of welfare-oriented studies is increasing in animals under human care, including odontocetes. However, validated welfare indicators are lacking for captive odontocetes. We studied the effect of several conditions…


Social, reproductive and contextual influences on fecal glucocorticoid metabolites in captive Yangtze finless porpoises (Neophocaena asiaeorientalis asiaeorientalis) and bottlenose dolphins (Tursiops truncatus)

Serres, Agathe; Robeck, Todd; Deng, Xiaojun; Steinman, Karen; Hao, Yujiang; Wang, Ding
Journal of Zoological and Botanical Gardens (2020)

Although the use of fecal glucocorticoid metabolite (FGCM) measurements as non-invasive biomarkers for the stress response in mammals has increased, few studies have been conducted in odontocetes. We investigated if…