Resultados de la búsqueda
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Contrasting population changes in sympatric penguin species in association with climate warming
population changes between species at different study sites complicate the understanding of causal processes ... conditions for some species. These include the congeneric Adélie, chinstrap and gentoo penguins, which now ... demonstrate remarkable population responses to regional warming. However, inconsistencies in the direction of ... . Here, we show that at the South Orkney Islands where the three species breed sympatrically, the less ...
Meeting Document : WG-EMM-06/P3 : Autor(es): J. Forcada, P.N. Trathan, K. Reid, E.J. Murphy and J.P. Croxall (United Kingdom)
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Monitoring marine debris and its impact on marine living resources in Antarctic waters
Abstract: This paper has been prepared by the Secretariat of the Commission for the Conservation ... Annex IV of the Protocol on Environmental Protection to the Antarctic Treaty (CEP-III Final Report ... , paragraph 19). A number of measures have been adopted and implemented by CCAMLR to monitor and assess the ... have been initiated at a number of sub-Antarctic and Antarctic sites. These programs include surveys of ...
Meeting Document : SC-CAMLR-XX/BG/16 : Autor(es): Secretariat
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New Zealand Antarctic research programme
Abstract: Since parameters of penguin populations may provide good indices of the abundance of ... the key prey species (krill) and thus the state of the Antarctic marine ecosystem, aerial ... reconnaissance and photography are used in the Ross Sea sector of Antarctica to determine where Adelie penguins ... (Pygoscelis adeliae) breed, and to count the numbers of nests occupied during the early incubation period and ...
Meeting Document : WG-CEMP-92/24 : Autor(es): P.R. Wilson (New Zealand)
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Unusual breeding by seabirds at Marion Island during 1997/98
sites in the Southern Ocean may elucidate how climatic perturbations operating at a global scale impact ... species of seabirds capable of foraging over wide areas and for a tern. The number of king penguin ... Aptenodytes patagonicus chicks surviving to the start of spring in 1997 was considerably more than previously ... of northern giant petrels. Conversely, for two seabirds that feed close to the island, gentoo penguin ...
Meeting Document : WG-EMM-03/13 : Autor(es): R.J.M. Crawford, C.M. Duncombe Rae, D.C. Nel and J. Cooper (South Africa)
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Conservation of Antarctic pack-ice seals with increasing krill fishing and environmental change
declined, and fishing has increased rapidly. The highest seal density was found in the Marguerite Bay area ... Abstract: The management of Antarctic krill and conservation of its predators requires ... understanding about the compound effects of changing habitats, ecosystem interactions, and fishing practices ... . For Antarctic pack-ice seals, a main group of krill predators, we report the spatial density and krill ...
Meeting Document : WS-MPA-11/24 : Autor(es): J. Forcada, P.N. Trathan (UK), P.L. Boveng (USA), I.L. Boyd (UK), D.P. Costa (USA), M. Fedak (UK), T.L. Rogers and C.J. Southwell (Australia)
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Infectious diseases of Antarctic penguins: current status and future threats
Abstract: The Antarctic Treaty area will become increasingly frequented by both researchers and ... tourists in the future. Three main areas are likely to be impacted by this increase in use and by ... alterations due to climate change: the Western Antarctic Peninsula, the Ross Sea, and coastal regions of East ... infectious diseases. The number of investigations into infectious diseases of penguins has continued to ...
Meeting Document : WG-EMM-14/53 : Autor(es): W.W. Grimaldi, P.J. Seddon, P.O.B. Lyver, S. Nakagawa and D.M. Tompkins (New Zealand)
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Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophrys and D. chrysostoma at Campbell Island, New Zealand, 1942–96
parameters. A comparison between the species breeding at different sites shows that differing environmental ... Abstract: The numbers of Black-browed Albatrosses Diomedea melanophrys and Grey-headed ... Albatrosses D. chrysostoma at Campbell Island, New Zealand, have declined dramatically since the 1940s. Black ... -browed Albatross numbers went into a steep decline in the 1970s and, since at least 1984, have been ...
Meeting Document : WG-FSA-04/58 : Autor(es): S.M. Waugh (New Zealand), H. Weimerskirch (France), P.J. Moore and P.M. Sagar (New Zealand)
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Estimating nest-level phenology and reproductive success of colonial seabirds using time-lapse cameras
incubation intervals from direct observations were similar within species across sites. In the validation ... Abstract: We wish to draw the attention of Members to an online application of the R code ... published in the attached paper. The web-based app ‘photoR’ (https://jefferson.shinyapps.io/photor2 ... ) implements the methods of the paper and provides summary outputs for direct input to CEMP A6b and A9 eforms ...
Meeting Document : WG-EMM-18/P01 : Autor(es): J.T. Hinke, A. Barbosa, L.M. Emmerson, T. Hart, M.A Juáres, M. Korczak-Abshire, G. Milinevsky, M. Santos, P.N. Trathan, G.M. Watters and C. Southwell
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SUMMARY OF SCIENTIFIC OBSERVATIONS RELATED TO CONSERVATION MEASURES 24-02 (2008), 25-02 (2009), 25-03 (2009) AND 26-01 (2009)
Abstract: Introduction 1. This report summarises the information collected by observers for the ... seabird conservation”, 25-02 (2009) “Minimisation of the Incidental Mortality of Seabirds in the Course of ... Longline Fishing or Longline Fishing Research in the Convention Area”, 25-03 (2009) “Minimisation of the ... Incidental Mortality of Seabirds and Marine Mammals in the Course of Trawling in the Convention Area”, 26-01 ...
Meeting Document : WG-FSA-10/08 : Autor(es): Secretariat
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Observation on interactions between marine mammals and krill mid-water trawl
Arctocephalus gazella were observed around the vessel during the vessel fishing in the Subarea 48.3, no ... identified marine mammal was observed in the main body of trawl net. There was no marine mammal by-catch ... Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ...
Meeting Document : SC-CAMLR-38/BG/20 : Autor(es): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu