Resultados de la búsqueda
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): Delegation of the United Kingdom
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1999/2000
Abstract: The results of the fourth annual survey of entanglement of Antarctic fur seals at Signy ... juvenile males, the main component of the population at this time of year.The number of sightings was the ... the number of fur seals arriving at Signy Island in 1999/2000 was the highest observed since ... being caused to 60% of animals at Signy Island, which was the lowest on record. As usual this was higher ...
Meeting Document : SC-CAMLR-XIX/BG/03 : Autor(es): Delegation of the United Kingdom
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Decrease in numbers of the eastern rockhopper penguins Eudyptes chrysocome filholi at Marion Island, 1994/95 to 2002/03
Abstract: Numbers of rockhopper penguins Eudyptes chrysocome breeding at Marion Island decreased ... adults, and there was a decrease in the mass at arrival at breeding colonies of both males and females ... . Except in 1997/98, the mass of chicks at fledging was less than that recorded at two other localities ... . These factors suggest an inadequate supply of food for rockhopper penguins at Marion Island. Decreases ...
Meeting Document : WG-EMM-03/10 : Autor(es): R.J.M. Crawford, J. Cooper, B.M. Dyer, M.D. Greyling, N.T.W. Klages, D.C. Nel, J.L. Nel, S.L. Petersen and A.C. Wolfaardt (South Africa)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
Abstract: The results of the third annual survey of entanglement of Antarctic fur seals at Signy ... males, the main component of the population at this time of year. The number of sightings increased by ... parallel study undertaken at Bird Island, South Georgia in 1998/99. These indicated that the number of ... of fur seals was entangled in packaging bands at Signy Island (67%) than at Bird Island (38 ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Autor(es): Delegation of the United Kingdom