Documentos

Número de documento	Nombre	Punto(s) de la agenda Ordenar descendente
WG-EMM-PSW-08/05 Mostrar menos información	THE WHITE-CHINNED PETREL (PROCELLARIA AEQUINOCTIALIS) ON SOUTH GEORGIA: POPULATION SIZE, DISTRIBUTION AND GLOBAL SIGNIFICANCE A.R. Martin, S. Poncet, C. Barbraud, P. Fretwell and E. Foster (United Kingdom) Resumen: More white-chinned petrels (Procellaria aequinoctialis) are accidentally killed in fisheries than probably any other seabird in the world, but the population impact of this mortality is poorly understood, partly because there have been no estimates of the species’ abundance in recent decades. The largest breeding aggregation, comprising the majority of the worldwide total, is believed to be on Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/06 Mostrar menos información	ABUNDANCE ESTIMATES FOR CRABEATER, WEDDELL AND LEOPARD SEALS AT THE ANTARCTIC PENINSULA AND IN THE WESTERN WEDDELL SEA (90º - 30º W, 60º - 80º S) J. Forcada and P.N. Trathan (United Kingdom) Resumen: This paper presents spatial modelling based abundance and density estimates of pack-ice seals, crabeater, Weddell and leopard seals, based on aerial survey line transect data collected in January 1999 under the Antarctic Pack-Ice Seal (APIS) programme. Estimates are reported for the Antarctic Peninsula and the western Weddell Sea region (90º to 30º W and 60º to 80º S). Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/07 Mostrar menos información	SPATIAL AND TEMPORAL VARIATION IN ATTRIBUTES OF ADELIE PENGUIN BREEDING POPULATIONS: IMPLICATIONS FOR UNCERTAINTY IN ESTIMATION OF THE ABUNDANCE OF BREEDING PENGUINS FROM ONE-OFF COUNTS C. Southwell, J. McKinlay, R. Pike, D. Wilson, K. Newbery and L. Emmerson (Australia) Resumen: Broad-scale surveys of penguin breeding abundance generally rely on on-off counts of adults, nests or chicks across several or many breeding sites, and the timing of these counts is often outside the control of researchers. Time series counts of Adelie penguin breeding population attributes (adults, nest and chicks) within the breeding period show considerable variability across space and time Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/08 Mostrar menos información	ESTIMATING THE NUMBER OF PRE- AND INTERMITTENT BREEDERS ASSOCIATED WITH THE BÉCHERVAISE ISLAND ADÉLIE PENGUIN POPULATION L. Emmerson and C. Southwell (Australia) Resumen: The size of two of the inaccessible (non-breeding) components of the Adélie penguin population associated with the Béchervaise Island breeding population is estimated over the past decade using a series of mark-recapture analyses and some simple population modelling techniques. Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/09 Mostrar menos información	ASPECTS OF POPULATION STRUCTURE, DYNAMICS, AND DEMOGRAPHY OF RELEVANCE TO ABUNDANCE ESTIMATION: ADÉLIE PENGUINS L. Emmerson and C. Southwell (Australia) Resumen: Counts of Adélie penguin populations are most conveniently and most often undertaken at breeding sites during the breeding season. The objective of this paper is to identify and describe the aspects of Adélie penguin population structure, dynamics and demography that are relevant to the interpretation of counts made at breeding sites and the estimation of overall population abundance derived Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/10 Mostrar menos información	FLYING SEABIRDS IN AREA 48; A REVIEW OF POPULATION ESTIMATES, COVERAGE AND POTENTIAL GAPS IN SURVEY EXTENT AND METHODS D. Wilson (Australia) Resumen: Published accounts of population surveys and population estimates for flying seabirds across Area 48 are reviewed. Spatial coverage of count data and population estimates varies greatly between species across their breeding ranges in Area 48. Most population estimates reviewed date from the 1970s and 1980s. Survey methodologies are often poorly described. Potential biases and uncertainties Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/11 Mostrar menos información	SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY J.P. McKinlay and C.J. Southwell (Australia) Resumen: In addition to a review of published studies on Adelie penguin abundance at breeding sites in Antarctica, Southwell (2004) proposed a general abundance estimator appropriate for a species of that kind. The present study attempts to implement this estimator in the form of a parametric bootstrap model, utilising as input data published counts of Adelie penguins and estimates of their uncertainty Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/01 Mostrar menos información	Agenda for the WG-EMM Predator Survey Workshop (Hobart, Australia, 16 to 20 June 2008) Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/12 Mostrar menos información	A BRIEF SUMMARY OF ADELIE PENGUIN COUNT DATA FROM EAST ANTARCTICA C. Southwell and J. McKinlay (Australia) Resumen: This paper very briefly summarises some aspects Adelie penguin count data from east Antarctica to demonstrate the extent and nature of variability in data from this large region, and to provide some background to some aspects of the R program SEABIRD outlined in McKinlay and Southwell (submitted working paper). Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/02 Mostrar menos información	List of participants Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/13 Mostrar menos información	INCOMPLETE SEARCH EFFORT AS A POTENTIAL SOURCE OF BIAS IN BROAD-SCALE ESTIMATES OF PENGUIN ABUNDANCE DERIVED FROM PUBLISHED COUNT DATA: A CASE STUDY FOR ADÉLIE PENGUINS IN EAST ANTARCTICA C. Southwell, D. Smith and A. Bender (Australia) Resumen: Potential Adélie penguin breeding habitat (defined as ice-free land with area >4000 m2 and within 500 m of the ocean) in the Australian Antarctic Territory (AAT) was mapped using a GIS, and the literature reviewed for evidence of the mapped habitat being searched for occupation by breeding Adélie penguins. The total area of potential breeding habitat was estimated to be close to 700 km2. Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/03 Mostrar menos información	List of documents Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/14 Mostrar menos información	ANTARCTIC FUR SEAL PUP PRODUCTION AND POPULATION TRENDS IN THE SOUTH SHETLAND ISLANDS WITH SPECIAL REFERENCE TO SOURCES OF ERROR IN PUP PRODUCTION ESTIMATES M.E. Goebel (USA), D.E. Torres C. (Chile), A. Miller, J. Santora, D. Costa (USA) and P. Diaz (Chile) Resumen: This paper reports the results of a ground survey of fur seal colonies from in the South Shetland Islands in 2007/08. Multiple counts of pups at each colony were conducted to establish confidence limits on pup production. Total pup production was 7,602 (±103) pups down 24.4% from the last census in 2001/02 (10,057 ±142 pups born). Dead pups accounted for 1.64% of the total. A comparison with Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/04 Mostrar menos información	A POPULATION ESTIMATE OF MACARONI PENGUINS (EUDYPTES CHRYSOLOPHUS) AT SOUTH GEORGIA P.N. Trathan (United Kingdom) Resumen: This paper describes methods and results from a recent aerial survey of the macaroni penguin population at South Georgia. Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión
WG-EMM-PSW-08/15 Mostrar menos información	TIMING OF CLUTCH INITIATION IN PYGOSCELIS PENGUINS ON THE ANTARCTIC PENINSULA: TOWARDS AN IMPROVED UNDERSTANDING OF OFF-PEAK CENSUS CORRECTION FACTORS H.J. Lynch, W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece (USA) Resumen: Penguin censuses on the Antarctic Peninsula are often subject to logistical challenges that preclude nest censuses being conducted at the peak of egg laying as established by the CCAMLR Ecosystem Monitoring Program (CEMP) (Scientific Committee for the Conservation of Antarctic Marine Living Resources 2004). Additionally, the historical literature, necessary for establishing baseline conditions Read More Presentado por: Admin Admin (Secretaría de la CCRVMA) Solicitar acceso a documento de reunión

WG-EMM-PSW-08

Agenda