Results 51 to 60 of about 3,964 (157)

Human disturbance influences reproductive success and growth rate in California sea lions (Zalophus californianus). [PDF]

PLoS ONE, 2011
The environment is currently undergoing changes at both global (e.g., climate change) and local (e.g., tourism, pollution, habitat modification) scales that have the capacity to affect the viability of animal and plant populations. Many of these changes,
Susannah S French, Manuela González-Suárez, Julie K Young, Susan Durham, Leah R Gerber   +4 more
doaj   +1 more source

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, Volume 309, Issue 7, Page 1875-1903, July 2026.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source

Sea Lions Develop Human-like Vernix Caseosa Delivering Branched Fats and Squalene to the GI Tract

Scientific Reports, 2018
Vernix caseosa, the white waxy coating found on newborn human skin, is thought to be a uniquely human substance. Its signature characteristic is exceptional richness in saturated branched chain fatty acids (BCFA) and squalene.
Dong Hao Wang, Rinat Ran-Ressler, Judy St Leger, Erika Nilson, Lauren Palmer, Richard Collins, J. Thomas Brenna   +6 more
doaj   +1 more source

Fear or feast: small mammal activity increases in the presence of carcasses despite increased threat of predation by black‐backed jackals

Wildlife Biology, Volume 2026, Issue 4, July 2026.
Food acquisition is arguably the most important, and among the riskiest behaviours for most mammals. Carcasses are an ephemeral resource for many scavengers, particularly black‐backed jackals Lupulella mesomelas that prey on small mammals. Landscape of fear theory suggests that prey species should reduce their activity in areas of high predator ...
Haemish I. A. S. Melville, W. Maartin Strauss   +1 more
wiley   +1 more source

The Toxic Effects of Environmental Domoic Acid Exposure on Humans and Marine Wildlife

Marine Drugs
Biotoxins produced by harmful algal blooms (HABs) are a substantial global threat to ocean and human health. Domoic acid (DA) is one such biotoxin whose negative impacts are forecasted to increase with climate change and coastal development.
Ami E. Krasner, Margaret E. Martinez, Cara L. Field, Spencer E. Fire   +3 more
doaj   +1 more source

First Non‐Invasive Monitoring of Fecal Steroids in Greater Caribbean Manatees (Trichechus manatus manatus)

Zoo Biology, Volume 45, Issue 4, Page 435-443, July/August 2026.
This study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Vanessa Bermúdez‐Cardona, Roberto Sánchez‐Okrucky, José A. Sandoval‐Zárate, Nataly Castelblanco‐Martínez   +3 more
wiley   +1 more source

Serum cortisol in California sea lion pups (Zalophus californianus californianus) [PDF]

, 2010
Marine ecosystems are exposed to a wide variety of factors that may produce disturbances in their structure and functioning. The Gulf of California supports fisheries, tourism, intensive agriculture, mining, and more recently, shrimp aquaculture.
Galindo, F, Valdez, R.A, Brousset, D, Romano, M.C., Aurioles Gamboa, David   +4 more
core   +2 more sources

Identification of a Novel Astrovirus in Pinnipeds

Frontiers in Microbiology, 2022
Astroviruses infect human and animals and cause diarrhea, fever, and vomiting. In severe cases, these infections may be fatal in infants and juvenile animals.
Peijun Zhang, Haoxiang Su, Ruoyan Peng, Ruoyan Peng, Ruoyan Peng, Jasper Fuk-Woo Chan, Jasper Fuk-Woo Chan, Shijie Bai, Gaoyu Wang, Gaoyu Wang, Gaoyu Wang, Yi Huang, Yi Huang, Yi Huang, Xiaoyuan Hu, Xiaoyuan Hu, Xiaoyuan Hu, Jun Luo, Sisi Liu, Youyou Li, Youyou Li, Youyou Li, Liying Xue, Liying Xue, Liying Xue, Fan Yang, Mingming Zhao, Yun Zhang, Yun Zhang, Yun Zhang, Chuanning Tang, Chuanning Tang, Chuanning Tang, Shu Shen, Xiuji Cui, Xiuji Cui, Xiuji Cui, Lina Niu, Lina Niu, Lina Niu, Gang Lu, Gang Lu, Gang Lu, Kwok-Yung Yuen, Kwok-Yung Yuen, Fei Deng, Weijia Zhang, Feifei Yin, Feifei Yin, Feifei Yin, Jiang Du, Jiang Du, Jiang Du   +52 more
doaj   +1 more source

Creation of an MRI‐Based Three‐Dimensional Common Wombat (Vombatus ursinus) Brain Atlas and Linking Brain Morphometry to Wombat Behaviour

Anatomia, Histologia, Embryologia, Volume 55, Issue 4, July 2026.
ABSTRACT Marsupials lack a corpus callosum; in its place Diprodontia have a fasciculus aberrans connecting the hemispheres. However, despite this uniqueness, the realm of marsupial brain anatomy remains largely unexplored, especially through the lens of modern imaging techniques.
Natasha B. Anthoniel, Kristy R. Q. Goh, Timothy J. Stait‐Gardner, Nyoman D. Kurniawan, Marianne D. Keller   +4 more
wiley   +1 more source

New records of non-resident pinnipeds from the Gulf of California, Mexico Registros nuevos de pinnípedos no-residentes en el golfo de California, México

Revista Mexicana de Biodiversidad, 2010
Although the California sea lion (Zalophus californianus) is the only pinniped resident in the Gulf of California, there are occasional records of 3 additional species; here we report 4 recent records of the Guadalupe fur seal (Artocephalus townsendi), 6
Juan Pablo Gallo-Reynoso, Martín Octavio Maravilla-Chávez, Carlos J. Navarro-Serment   +2 more
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