Inter‐colony foraging area segregation quantified in small colonies of Adélie Penguins
نویسندگان
چکیده
منابع مشابه
Habitat use and sex-specific foraging behaviour of Adélie penguins throughout the breeding season in Adélie Land, East Antarctica
BACKGROUND Marine predators are ecosystem sentinels because their foraging behaviour and reproductive success reflect the variability occurring in the lower trophic levels of the ecosystem. In an era of environmental change, monitoring top predators species can provide valuable insights into the zones of ecological importance that need to be protected. In this context, we monitored the Adélie p...
متن کاملAdélie penguins and environmental change.
IN THEIR REVIEW “ENVIRONMENTAL CHANGE and Antarctic seabird populations,” (Special Issue on Polar Science, 30 Aug., p. 1510), J. P. Croxall et al. describe paradoxes, many of which exist only because of a limited review of available information. Stating that the paleoecological record shows close correspondence between ice cover and the presence of Adélie penguins is correct (1), but claiming t...
متن کاملMutation and Evolutionary Rates in Adélie Penguins from the Antarctic
Precise estimations of molecular rates are fundamental to our understanding of the processes of evolution. In principle, mutation and evolutionary rates for neutral regions of the same species are expected to be equal. However, a number of recent studies have shown that mutation rates estimated from pedigree material are much faster than evolutionary rates measured over longer time periods. To ...
متن کاملProjected asymmetric response of Adélie penguins to Antarctic climate change
The contribution of climate change to shifts in a species' geographic distribution is a critical and often unresolved ecological question. Climate change in Antarctica is asymmetric, with cooling in parts of the continent and warming along the West Antarctic Peninsula (WAP). The Adélie penguin (Pygoscelis adeliae) is a circumpolar meso-predator exposed to the full range of Antarctic climate and...
متن کاملAt-Sea Associations in Foraging Little Penguins
Prey distribution, patch size, and the presence of conspecifics are important factors influencing a predator's feeding tactics, including the decision to feed individually or socially. Little is known about group behaviour in seabirds as they spend most of their lives in the marine environment where it is difficult to observe their foraging activities. In this study, we report on at-sea foragin...
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ژورنال
عنوان ژورنال: Ibis
سال: 2020
ISSN: 0019-1019,1474-919X
DOI: 10.1111/ibi.12837