Foraging strategies of Adelie penguins at Bechervaise Island ...

• Main Author: Clarke, JR
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: Austral; East Antarctica; Antarc*; Antarctica; Pygoscelis adeliae; Sea ice
• Online Access: https://dx.doi.org/10.25959/23235410.v1; https://figshare.utas.edu.au/articles/thesis/Foraging_strategies_of_Adelie_penguins_at_Bechervaise_Island/23235410/1

A detailed multi-year analysis of the breeding biology, diet and foraging strategies of Adelie penguins (Pygoscelis adeliae) from the Bechervaise Island colony in East Antarctica was carried out in relation to gender and environmental conditions such as sea ice extent. Data on breeding success and foraging activities (location, trip duration, and diving behaviour) were collected during the 1994-95, 1995-96 and 1996-97 austral summers along with dietary samples. Analyses included data and samples from four previous seasons in addition to the new material. Several hundred penguins of known sex within the colony were individually identified by means of implanted electronic tags to allow automated detection of their travel to and from their nest sites. Multi-year data on the nest and mate fidelity and breeding success of these birds were available for analysis. The breeding success and variations in foraging strategies (trip duration, diet, dive depth, and foraging location) of tagged individuals were analysed ...