Genetic variability in Guadalupe fur seals

Genetic variability in Guadalupe fur seals.

The Guadalupe fur seal (Arctocephalus townsendi) population underwent one or two severe bottlenecks due to commercial sealing in the late 19th century. Since then the protected population has been growing steadily around their only rookery, Isla de Guadalupe, Mexico. We probed both nuclear and mitochondrial genomes using multilocus nuclear DNA profiling and mitochondrial DNA sequencing to estim...

A Trans-Holocene Archaeological Record of Guadalupe Fur Seals (Arctocephalus townsendi) on the California Coast

The Dynamics of Hookworm Disease in Northern Fur Seals

blood and enter the bronchi of the lungs. There they are coughed up through the trachea into the throat and swallowed. This is referred to as the pulmonary route of infection and historically had been considered the only route of hookworm infection. In the small and large intestine the worms attach to the wall of the intestine and suck blood, mature, and lay eggs, which pass out with the feces ...

Impact of the 2015 El Niño-Southern Oscillation on the Abundance and Foraging Habits of Guadalupe Fur Seals and California Sea Lions from the San Benito Archipelago, Mexico.

The abundance of California sea lions (Zalophus californianus) (CSLs) and Guadalupe fur seals (Arctocephalus philippii townsendi) (GFSs) from the San Benito Archipelago (SBA) was determined through nine monthly surveys in 2014-2015. Assessment of their foraging habits was examined based on the isotopic analysis of pups (maternal indicators) (SIAR/SIBER-R). Environmental variability between 2014...

Utilisation of Intensive Foraging Zones by Female Australian Fur Seals

Within a heterogeneous environment, animals must efficiently locate and utilise foraging patches. One way animals can achieve this is by increasing residency times in areas where foraging success is highest (area-restricted search). For air-breathing diving predators, increased patch residency times can be achieved by altering both surface movements and diving patterns. The current study aimed ...