From Antarctic Science:
16 January 2013
Colin Southwell and Louise Emmerson
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.
Big Meteorite Discovered in Antarctica: here.
- New emperor penguin colonies discovered (dearkitty1.wordpress.com)
- Penguins’ Private Lives Recorded in Antarctica (livescience.com)
- Adelie Penguins on the rise in Eastern Antarctica (blogs.abc.net.au)
- Penguins dive into icy Antarctic water to hunt for food (dailymail.co.uk)
- New Antarctic geological timeline aids future sea-level predictions (eurekalert.org)
- New study tracks emperor penguin sea ice habits (summitcountyvoice.com)
- Colony of 9,000 penguins discovered in Antarctica (io9.com)