1. Foraging and migration often require different energetic and movement strategies. Though not readily apparent, constraints during one phase might influence the foraging strategies observed in another. For marine birds that fly and dive, body size constraints likely present a trade-off between foraging ability and migration as smaller bodies reduce...
1. Foraging and migration often require different energetic and movement strategies. Though not readily apparent, constraints during one phase might influence the foraging strategies observed in another. For marine birds that fly and dive, body size constraints likely present a trade-off between foraging ability and migration as smaller bodies reduce...
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Sea
Rachael A. Orben1,2*, Rosana Paredes3, Daniel D. Roby4, David B. Irons5 and
Scott A. Shaffer6,7
Reproductive success is one of the most easily-measured and widely studied demographic parameters of
colonial nesting seabirds. Nevertheless, factors affecting the sequential stages (egg laying, incubation, chick-rearing)
of reproductive success are less understood. We investigated the separate sequential stages
of reproductive success in piscivorous black-legged kittiwakes (Rissa tridactyla) and thick-billed...
Reproductive success is one of the most easily-measured and widely studied demographic parameters of
colonial nesting seabirds. Nevertheless, factors affecting the sequential stages (egg laying, incubation, chick-rearing)
of reproductive success are less understood. We investigated the separate sequential stages
of reproductive success in piscivorous black-legged kittiwakes (Rissa tridactyla) and thick-billed...
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diet and oceanography
Heather M. Renner a,n, Brie A. Drummond a, Anna-Marie Benson b, Rosana Paredes c
1. Foraging and migration often require different energetic and movement strategies. Though not readily apparent, constraints during one phase might influence the foraging strategies observed in another. For marine birds that fly and dive, body size constraints likely present a trade-off between foraging ability and migration as smaller bodies reduce...
Reproductive success is one of the most easily-measured and widely studied demographic parameters of
colonial nesting seabirds. Nevertheless, factors affecting the sequential stages (egg laying, incubation, chick-rearing) of reproductive success are less understood. We investigated the separate sequential stages of reproductive success in piscivorous black-legged kittiwakes (Rissa tridactyla) and thick-billed...
AIM: Species that breed sympatrically often occupy different foraging niches to
mitigate competition for prey. When resource availability declines at the end of
the breeding season, some animals migrate to regions with more favourable
environmental conditions. When these life-history traits combine, foraging
habitat preferences may continue to influence migration patterns...
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during their non-breeding migrations
Rachael A. Orben, David B. Irons, Rosana Paredes, Daniel D
AIM: Species that breed sympatrically often occupy different foraging niches to
mitigate competition for prey. When resource availability declines at the end of
the breeding season, some animals migrate to regions with more favourable
environmental conditions. When these life-history traits combine, foraging
habitat preferences may continue to influence migration patterns...
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, Rosana Paredes3, Daniel D. Roby3,
Richard A. Phillips4 and Scott A. Shaffer5,6
1Department of Ocean
AIM: Species that breed sympatrically often occupy different foraging niches to mitigate competition for prey. When resource availability declines at the end of the breeding season, some animals migrate to regions with more favourable environmental conditions. When these life-history traits combine, foraging habitat preferences may continue to influence migration patterns...
Central place foragers, such as breeding seabirds, need to commute between their nests and foraging grounds, thus close proximity of the breeding colony to productive oceanographic features might be beneficial for seabird reproduction. We tested this hypothesis by investigating the at-sea foraging and breeding behavior of thick-billed murres (Uria lomvia)...