Adelie penguin banding data 1994-2021 from the California Avian Data Center hosted by Point Reyes Bird Observatory Conservation Science

This project is an international collaborative investigation of geographic structuring, founding of new colonies, and population change of Adelie penguins (Pygoscelis adelia) nesting on Ross and Beaufort islands, Antarctica. This ongoing study will continue to consider the relative importance of resources that constrain or enhance colony growth (nesting habitat, access to food); the aspects of natural history that are affected by exploitative or interference competition among neighboring colonies (breeding success, foraging effort); climatic factors that influence the latter, especially sea ice patterns; and behavioral mechanisms that influence colony growth as a function of initial size and location (emigration, immigration). The research includes a census of known-age penguins, studies of foraging effort and overlap among colonies; and identification of the location of molting and wintering areas.

本项目为一项国际合作研究，旨在探究南极洲罗斯岛与博福特岛筑巢的阿德利企鹅（Pygoscelis adelia）的种群地理结构、新种群建立以及种群动态变化。本项持续推进的研究将持续纳入考量四类核心要素的相对重要性：一是制约或促进种群扩张的资源条件（包括筑巢栖息地、食物可获得性）；二是邻近聚居种群间掠夺性竞争与干扰性竞争所影响的自然历史特征（如繁殖成功率、觅食投入）；三是对上述特征产生影响的气候因素，尤其以海冰格局为代表；四是随种群初始规模与栖息位置变化影响种群扩张的行为机制（包括迁出与迁入）。本研究的具体内容包括：已知年龄企鹅的种群普查、各聚居种群间觅食投入与觅食重叠情况的分析，以及换羽区与越冬区位置的识别工作。