Résultats de la recherche
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Spatial distribution of foraging by female Antarctic fur seals
sites followed the same pattern of travel. There was no detectable difference in this behavior among ... Abstract: The study tested the hypothesis that the distribution of critical habitat for foraging ... by female Antarctic fur seals breeding at the island of South Georgia was influenced by physical ... gradients in the oceans and also by the need to avoid local competition for food. It also tested the ...
Meeting Document : WG-EMM-01/26 : Auteur(s): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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Spatial variability and power to detect regional-scale trends
between sites than within sites over time, inter-site variance can overwhelm the effects of other sources ... power for various multiple-site monitoring scenarios. Under the conservative, hypothetical scenarios we ... examined, monitoring at only 2 or 3 sites provided insufficient power to detect a trend. At the other ... extreme, monitoring at all sites in a region (a census) may be an unnecessary use of resources because the ...
Meeting Document : WG-EMM-03/47 : Auteur(s): C. Southwell and L. Emmerson (Australia)
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Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet
large colonies, at Bullard Beach and Kildalkey Bay, account for about 85% of the overall population. At ... both these colonies the area occupied by breeders showed no trend between 1983/84 and 2002/03, but the ... subantarctic Marion Island have decreased since the early 1980s. Estimates of the population at the island fell ... demonstration of a significant decrease in the overall population. Numbers of occupied nests at other colonies ...
Meeting Document : WG-EMM-03/15 : Auteur(s): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)
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Antarctic fur seal (Arctocephalus gazella) pup growth rates obtained at Cape Shirreff, Livingston Island, South Shetlands: 1994/95 to 1997/98 (CEMP Index C2, Procedure B)
site with relation to the local marine environment. Author(s): R. Hucke-Gaete, V. Vallejos and D ... less deviation from the mean, while females on both sites had very similar growth rates. If these ... Site and SSSI N°32 Cape Shirreff, Livingston Island, South Shetlands. Every fortnight (15 days) 100 ... 's population was observed during 1997/98. No evidence for an ENSO phenomenon influence is ...
Meeting Document : WS-AREA 48-98/18 Rev. 1 : Auteur(s): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
%). Entanglements in packaging bands at Signy Island were 47% higher than the previous season. There were no reports ... bands and synthetic line were the main entangling materials at both sites although a greater proportion ... Abstract: The results of the third annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 1998/99 summer season. There were ten sightings of ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Auteur(s): Delegation of the United Kingdom
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Identifying areas for monitoring studies
Abstract: The feedback management strategy in development will require a strengthen CEMP (or ... countries had being asked i) contribute to the CEMP program with their existing monitoring programs, even if ... complement the existing ones. Last year, Argentina proposed the incorporation of Cierva Cove as a Reference ... , mainly due to the recent fishing activity in the area and the absence of krill abundance estimates to ...
Meeting Document : WG-EMM-14/61 Rev. 1 : Auteur(s): J. Arata and F. Baeza (Chile)
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General information about CEMP
distances between the main sampling sites, the location of sites with respect to small-scale management ... Abstract: The CCAMLR Ecosystem Monitoring Program (CEMP) was established in 1985 with the aim to ... detect and record significant changes in critical components of the Antarctic ecosystem, and to ... units and the matrix of data submitted to the Secretariat. Author(s): Secretariat Title: General ...
Meeting Document : WG-EMM-03/25 : Auteur(s): Secretariat
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PREDICTING SPECIES DISTRIBUTIONS FROM MUSEUM AND HERBARIUM RECORDS USING MULTI-RESPONSE MODELS FITTED WITH MULTIVARIATE ADAPTIVE REGRESSION SPLINES
Abstract: Current circumstances — that the majority of species distribution records exist as ... methods for using these data. Such methods must, in particular, accommodate the difficulties caused by ... overcoming these difficulties, analysing a range of data sets using the technique of multivariate adaptive ... particular advantages in its analytical speed and the ease of transfer of analysis results to other ...
Meeting Document : WS-VME-09/P02 : Auteur(s): Elith, J., Leathwick, J.
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How similar are CEMP indices from adjacent locations? A case of study using Pygoscelis adeliae and P. papua monitoring data from three breeding colonies on King George Island
Abstract: What is the spatial scale of monitoring conducted at an individual CCAMLR Ecosystem ... Monitoring Program (CEMP) site? Answering this question is key to understanding how CEMP data could be used ... found evidence of and site- and species-specific differences that highlight heterogeneity in indices of ... the need for CEMP monitoring to be distributed widely to encapsulate population responses to changing ...
Meeting Document : WG-EMM-14/43 : Auteur(s): M.M. Santos (Argentina), M. Korczak-Abshire (Poland), M.A. Juáres (Argentina), W.Z. Trivelpiece and J.T. Hinke (USA)
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Antarctic neritic krill Euphausia chrystallorophias: spatio-temporal distribution, growth and grazing rates
Prydz Bay region. Size frequency analysis indicated that the generation time was ~ 3 years in the Indian ... sector of the Southern Ocean. Total life span of E.crystallorophias may exceed 5 years in the Prydz Bay ... Bay and the Cosmonaut Sea, spawning of E.crystallorophias appears to peak from the end of November to ... Abstract: Dynamics of distribution, growth, life span and feeding were studied in the endemic ...
Meeting Document : WG-Joint-94/10 : Auteur(s): E.A. Pakhomov (Ukraine) and R. Perissinotto (South Africa)