Diving location and depth of breeding chinstrap penguins during incubationand chick-rearing period in King George Island, Antarctica
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- Diving location and depth of breeding chinstrap penguins during incubationand chick-rearing period in King George Island, Antarctica
- Other Titles
- 포란기와 육추기 턱끈펭귄의 잠수 위치와 깊이
- Lee, Won Young
Kim, Kil Won
- Life Sciences & Biomedicine - Other Topics
- Ing behavior; Incubation; Chick-rearing; Chinstrap penguin
- Issue Date
- Lee, Won Young, et al. 2016. "Diving location and depth of breeding chinstrap penguins during incubationand chick-rearing period in King George Island, Antarctica". The Ornithological Society Of Korea, 23(1): 41-48-48.
- Breeding birds can increase their foraging efforts to feed chicks after hatching. We investigated how chinstrap penguins (Pygoscelis antarctica) differ foraging diving behaviors with breeding stages. During incubation and chick-rearing period, from December 2015 to January 2016 on King George Island, Antarctica, diving characteristics of breeding chinstrap penguin parents were recorded by deploying GPS and Time-Depth Recorder (TDR). Our results showed that chinstrap penguins have wider-range diving areas and longer foraging trips during incubation period while they dive in on-shore areas for a short trip hours during chick-rearing period. In addition, chinstrap penguins exhibited deeper dive depths during chick-rearing than during incubation. Our results suggest that chinstrap parents change their foraging area and dive depth between incubation and chick-rearing, possibly due to the increased need of chick-feeding and the temporal changes in prey availability between the two reproduction stages.
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