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    Witharana, Chandi and Lynch, Heather 2016. An Object-Based Image Analysis Approach for Detecting Penguin Guano in very High Spatial Resolution Satellite Images. Remote Sensing, Vol. 8, Issue. 5, p. 375.


    Younger, Jane Emmerson, Louise Southwell, Colin Lelliott, Patrick and Miller, Karen 2015. Proliferation of East Antarctic Adélie penguins in response to historical deglaciation. BMC Evolutionary Biology, Vol. 15, Issue. 1,


    LaRue, M. A. Lynch, H. J. Lyver, P. O. B. Barton, K. Ainley, D. G. Pollard, A. Fraser, W. R. and Ballard, G. 2014. A method for estimating colony sizes of Adélie penguins using remote sensing imagery. Polar Biology, Vol. 37, Issue. 4, p. 507.


    Lynch, H. J. and LaRue, M. A. 2014. First global census of the Adélie Penguin. The Auk, Vol. 131, Issue. 4, p. 457.


    Schwaller, Mathew R. Southwell, Colin J. and Emmerson, Louise M. 2013. Continental-scale mapping of Adélie penguin colonies from Landsat imagery. Remote Sensing of Environment, Vol. 139, p. 353.


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Large-scale occupancy surveys in East Antarctica discover new Adélie penguin breeding sites and reveal an expanding breeding distribution

  • Colin Southwell (a1) and Louise Emmerson (a1)
  • DOI: http://dx.doi.org/10.1017/S0954102012001174
  • Published online: 16 January 2013
Abstract
Abstract

Knowledge of spatial distribution is fundamental to ecological studies and crucial for conservation and management of species and biodiversity, but detailed, large-scale spatial data are lacking for most taxa. Although the Adélie penguin is one of the most intensively studied Antarctic vertebrates, spatial data that could aid in ecological study and conservation management are incomplete. We undertook a large-scale survey of the current breeding distribution of Adélie penguins along 3800 km of the East Antarctic coastline. The survey increased the number of known breeding locations by 50% and revealed that the breeding distribution has expanded in some parts of the survey region over the past two to three decades. The expanding breeding distribution may reflect underlying population dynamics of sustained growth and resultant density dependent effect on dispersal and movement from established breeding sites to new sites. The comprehensive, large-scale distribution data from this study will form a baseline for assessing any future changes in Adélie penguin breeding distribution, provide data for developing spatial models for predicting future changes in breeding distribution under plausible scenarios of environmental change, and contribute to the development of metapopulation models by providing estimates of local colonization and extinction probabilities under specific conditions of metapopulation change.

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Corresponding author
colin.southwell@aad.gov.au
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D. Ainley , J. Russell , S. Jenouvrier , E. Woehler , P.O. Lyver , W.R. Fraser G.L. Kooyman 2010. Antarctic penguin response to habitat change as Earth's troposphere reaches 2°C above preindustrial levels. Ecological Monographs, 80, 4966.

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D.I. MacKenzie , J.D. Nichols , J.E. Hines , M.G. Knutson A.B. Franklin 2003. Estimating site occupancy, colonization and local extinction when a species is detected imperfectly. Ecology, 84, 22002207.

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A. Tsoar , O. Allouche , O. Steinitz , D. Rotem R. Kadmon 2007. A comparative evaluation of presence-only methods for modelling species distribution. Diversity and Distributions, 13, 397405.

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Antarctic Science
  • ISSN: 0954-1020
  • EISSN: 1365-2079
  • URL: /core/journals/antarctic-science
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