Results 31 to 40 of about 228,065 (240)

Estimating the distribution of demand for Antarctic krill (Euphauisa superba) from land-based predators at South Georgia [PDF]

open access: yes, 2007
South Georgia is renowned for the abundance of Antarctic krill (Euphausia superba) and a range of krill predators. Variability in krill availability at a range of scales, and the consequences of this for predator-prey interactions, mean that quantifying ...
Swarbrick, Matthew Lewis
core   +2 more sources

Anti-predator behaviour of Cape fur seals Arctocephalus pusillus pusillus in relation to predation by white sharks Carcharodon carcharias around Seal Island, False Bay, South Africa [PDF]

open access: yes, 2010
Includes bibliographical references (leaves 161-202).How predators affect the behaviour of their prey is one of the most studied subjects in behavioural ecology, with many hypothesis and models explaining how animals should behave and even more ...
De Vos, Alta
core   +1 more source

Lack of functional alpha-lactalbumin prevents involution in Cape fur seals and identifies the protein as an apoptotic milk factor in mammary gland involution

open access: yesBMC Biology, 2008
Background The mammary gland undergoes a sophisticated programme of developmental changes during pregnancy/lactation. However, little is known about processes involving initiation of apoptosis at involution following weaning.
Lefèvre Christophe   +2 more
doaj   +1 more source

Overlap and temporal variation in the diets of sympatric Antarctic and Subantarctic fur seals (Arctocephalus spp.) at Marion Island, Prince Edward Islands

open access: yesPolar Research, 2018
Antarctic (Arctocephalus gazella) and Subantarctic (A. tropicalis) fur seals are important predators in the Southern Ocean. Marion Island (southern Indian Ocean) hosts the largest sympatric breeding populations of these two species.
Ryan R. Reisinger   +6 more
doaj   +1 more source

Impact of rising sea levels on Australian fur seals [PDF]

open access: yesPeerJ, 2018
Global warming is leading to many unprecedented changes in the ocean-climate system. Sea levels are rising at an increasing rate and are amplifying the impact of storm surges along coastlines. As variability in the timing and strength of storm surges has
Lachlan J. McLean   +4 more
doaj   +2 more sources

Foraging strategies in grey seals (Halichoerus grypus) : foraging effort and prey selection [PDF]

open access: yes, 2009
Swimming speeds and prey selection of temporally captive, wild grey seals (Halichoerus grypus) were investigated in relation to prey characteristics in an experimental set-up at the Sea Mammal Research Unit (St Andrews, UK).
Gallon, Susan Louise
core   +2 more sources

Animal-borne video cameras reveal differences in northern fur seal foraging behavior related to prey size selection

open access: yesFrontiers in Marine Science, 2022
A key aspect of foraging ecology research is understanding how predator foraging behavior and success are influenced by variation in prey resources. For northern fur seals (Callorhinus ursinus), an understanding of predator-prey relationships is critical
Carey E. Kuhn   +10 more
doaj   +1 more source

Investigating monitoring options for harbour seals in Special Areas of Conservation in Scotland [PDF]

open access: yes, 2007
Managing a wild population effectively requires knowledge of the abundance and behaviour of the species. Harbour seals (Phoca vitulina) are usually counted when they come ashore at haul-out sites, and so it is important to understand how the number of ...
Cunningham, Louise
core   +2 more sources

Clawed forelimbs allow northern seals to eat like their ancient ancestors [PDF]

open access: yesRoyal Society Open Science, 2018
Streamlined flippers are often considered the defining feature of seals and sea lions, whose very name ‘pinniped’ comes from the Latin pinna and pedis, meaning ‘fin-footed’. Yet not all pinniped limbs are alike. Whereas otariids (fur seals and sea lions)
David P. Hocking   +8 more
doaj   +1 more source

Protected area use by two sympatric marine predators repopulating their historical range

open access: yesEndangered Species Research, 2021
As large carnivores recover from over-exploitation, managers often lack evidence-based information on species habitat requirements and the efficacy of management practices, particularly where species repopulate areas from which they have long been ...
M Salton   +6 more
doaj   +1 more source

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