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Foraging Behavior and Physiological Adaptation for Diving in Thick‐Billed Murres
TLDR
Thick-billed Murres probably concentrate their foraging effort at times when prey is most available as it migrates closer to the surface in the evening as part of the deep scattering layer, given their relatively small size and limited oxygen storage capabilities.
A natural experiment on the impact of overabundant deer on songbird populations
TLDR
It is proposed that deer overabundance results in a decrease in songbird habitat quality through decreased food resources and nest site quality and may explain part of current continental-scale decreases in song bird populations.
Multicolony tracking reveals the winter distribution of a pelagic seabird on an ocean basin scale
Aim: An understanding of the non-breeding distribution and ecology of migratory species is necessary for successful conservation. Many seabirds spend the non-breeding season far from land, and
Auks: Alcidae
TLDR
This book discusses chick development and the transition from land to sea, systematics and evolution, distribution and biogeography, and social behaviour of auks in ecosystems.
Individual specialization in diet by a generalist marine predator reflects specialization in foraging behaviour.
TLDR
It is suggested that guillemots specialize on a single foraging strategy regardless of whether chick-provisioning and self-feeding and the development of individual specialization may be an important precursor to diversification among seabirds.
High flight costs, but low dive costs, in auks support the biomechanical hypothesis for flightlessness in penguins
TLDR
The hypothesis that function constrains form in diving birds is supported, and that optimizing wing shape and form for wing-propelled diving leads to such high flight costs that flying ceases to be an option in larger wing- Propelled diving seabirds, including penguins.
Trends in Forage Fish Populations in Northern Hudson Bay since 1981, as Determined from the Diet of Nestling Thick-Billed Murres Uria lomvia
TLDR
It is suggested that the observed changes in diet composition reflect changes in the relative abundance of the fish species involved and that the decline in arctic cod and increase in capelin and sandlance were associated with a general warming of Hudson Bay waters, the result of ongoing climate change in the region.
Social behaviour within groups of jungle babblers (Turdoides striatus)
Abstract Five aspects of intra-group behaviour among wild jungle babblers were analysed in relation to the age, sex and breeding status of the participants. The amount of participation in
Top-down and bottom-up consequences of unchecked ungulate browsing on plant and animal diversity in temperate forests: lessons from a deer introduction
TLDR
In the absence of predators, major climatic stress or other means to control the herbivore, deer browsing created greatly simplified plant and animal communities.
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