Anthropogenic change threatens global biodiversity by causing severe ecological
disturbance and extinction. Here, we consider the effects of anthropogenic change on one …

Many marine mammal populations are recovering after long eras of exploitation. 1, 2 To
what degree density-dependent body size declines in recovering species reflect a general …

Guadalupe fur seals (Arctocephalus townsendi) have established a second haul-out in the
Gulf of California on El Farallón de San Ignacio Island, along the mainland coast of Mexico …

The spatio-temporal distribution of breeding males can help understand the existence of
alternative reproductive tactics and their breeding success in colonially breeding species …

California sea lions (Zalophus californianus) are distributed along the Gulf of California and
northeastern Pacific coast. Genetic studies have suggested the existence of 3 to 4 …

На основании изучения видеоматериалов, полученных при съёмке стационарной
камерой в течение нескольких сезонов на одном из основных береговых лежбищ (о-в …

Abstract Changes in the behavior of free-living animals caused by natural and
anthropogenic factors can influence their survival and reproduction. Tourist activities with …

Interspecific interactions are key drivers of individual and population-level fitness in a wide
range of animals. However, in marine ecosystems, it is relatively unknown which biotic and …

A crucial question in wildlife management concerns the definition of ecologically meaningful
population units. For the California sea lion (Zalophus californianus), three population units …

The skull often reveals adaptation to ecological and environmental influences. Food
availability affects the somatic growth of otariids, and population abundance can influence …