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, RosanaParedes c
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...
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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of thick-billed
murres in the Bering Sea
Orben, R. A., Paredes, R., Roby, D. D., Irons, D. B
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...
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, RosanaParedes, 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...
Full Text:
migrations
Orben, R. A., Irons, D. B., Paredes, R., Roby, D. D., Phillips, R. A., & Shaffer, S.
A. (2015
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...
As central-place foragers, seabirds from colonies located close to multiple and/or productive marine habitats might experience increased foraging opportunities and enhanced resilience to food shortages. We tested whether this hypothesis might explain divergent trends in 3 populations of black-legged kittiwakes Rissa tridactyla, a surface-feeding piscivore, in the eastern Bering Sea....