Résultats de la recherche
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Foraging range and at-sea locations of female Antarctic fur seals, Cape Shirreff, Livingston Island, from 1999–2002
distribution and range of foraging females rearing pups at Cape Shirreff, Livingston Island, Antarctica. We ... ): M.E. Goebel, S.N. Sexton and D.P. Costa (USA) Title: Foraging range and at-sea locations of female ... from their colony to feeding areas hours to days offshore, returning periodically to suckle. Outside of ... survival but that of her young. As such, a fundamental component to understanding the survival and ...
Meeting Document : WG-EMM-02/53 : Auteur(s): M.E. Goebel, S.N. Sexton and D.P. Costa (USA)
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The effect of different methodologies used in penguin diet studies at three US AMLR predator research sites: Admiralty Bay, Palmer Station and Cape Shirreff
Abstract: Diet studies are a key component of the CCAMLR predator monitoring program as they ... provide direct assessments of the prey types and amounts of import to predators, which, in turn, are ... hypothesized to influence variability in related parameters such as breeding success, foraging trip durations ... and chick fledging weights. Given the importance and interdependence of diet studies to monitoring ...
Meeting Document : WG-EMM-99/46 : Auteur(s): W. Trivelpiece, S. Trivelpiece (USA) and K. Salwicka (Poland)
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Poor breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
Abstract: This paper describes the diet and foraging behaviour of Ad6lie penguins at B6chervaise ... island. Evidence from analyses of foraging location, foraging trip duration and diet led to the ... Island during 1998-99, a season of high chick mortality. One thousand nests perished in the three weeks ... following first hatch, when the chicks were very small. A total of 802 chicks reached crèche age from 1880 ...
Meeting Document : WG-EMM-99/25 : Auteur(s): L. Irvine, J.R. Clarke and K.R. Kerry (Australia)
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Variation in reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implications for southern ocean monitoring studies
success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers of ... . The fluctuations in reproductive performance of the krill-eating, summer-breeding penguins at Signy ... : Variation in reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implications ... Abstract: Aspects of the reproductive performance of Black-browed, Grey-headed and Wandering ...
Meeting Document : SC-CAMLR-VI/BG/15 : Auteur(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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Variation or reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implication for Southern Ocean monitoring studies
success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers of ... . The fluctuations in reproductive performance of the krill-eating, summer-breeding penguins at Signy ... : Variation or reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implication ... Abstract: Aspects of the reproductive performance of Black-browed, Grey-headed and Wandering ...
Meeting Document : WG-CEMP-87/13 : Auteur(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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Comparisons in prey distribution between inshore and offshore foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island
; their ventral light organs may become easier target for predators at night. Thus, aggregation pattern of ... Abstract: At Seal Island breeding predators which incorporated an overnight period into their ... foraging trip such as Antarctic fur seals (Arctocephalus gazella) and overnight foraging chinstrap penguins ... advantages are considered for visual predators to feed in the slope/offshore region at night:(l) krill showed ...
Meeting Document : WG-EMM-96/49 : Auteur(s): Ichii, T., Bengtson, J.L., Boveng, P., Cameron, M.F., Naganobu, M., Meyer, W.R., Hiruki, L.M., Takao, T., Jansen, J.K., Kawaguchi, S.
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An assessment of temporal variability and interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
of their correlation with breeding success. This analysis showed that lower weights of females at the ... Abstract: We examined temporal variability in a series of CEMP parameters collected over the ... period 1991/92 to 2001/02 on Adélie penguins at Béchervaise Island. Parameters relating to chick survival ... the correlation of each parameter with breeding success. Breeding success was measured in terms of 1 ...
Meeting Document : WG-EMM-02/46 : Auteur(s): L.M. Emmerson, J. Clarke, K. Kerry and C. Southwell (Australia)
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Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia
penguin Eudyptes chrysolophus at Bird Island, South Georgia, throughout the breeding seasons of 1999 to ... Abstract: In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of the macaroni ... between different stages of the breeding season, between sexes, between years and between individuals ...
Meeting Document : WG-EMM-02/21 Text : Auteur(s): K.E. Barlow and J.P. Croxall (United Kingdom)
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Seasonal and interannual variation in foraging range and habitat of macaroni penguins at South Georgia
penguins at Bird Island, South Georgia, throughout the breeding seasons of 1999-2001 using satellite ... interannual variation in foraging range and habitat of macaroni penguins at South Georgia Approval: Approved ... Abstract: In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of macaroni ...
Meeting Document : WG-EMM-01/19 : Auteur(s): K.E. Barlow and J.P. Croxall (United Kingdom)
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Beached marine debris surveys and incidences of seabird/marine mammal entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, and Signy Island, South Orkneys, 2009/10
(entanglements and hydrocarbon soiling only). Surveys of beached marine debris at Bird Island recorded a total of ... 2010) respectively. Surveys at Signy Island recorded a total of 41 items during summer 2009/10 ... varying quantities) at Bird Island, and the majority of items collected at Signy Island were either ... plastic or wood. Entanglements of 7 Antarctic fur seals (4 involving green nylon string) were observed at ...
Meeting Document : SC-CAMLR-XXIX/BG/10 : Auteur(s): Delegation of the United Kingdom