Adelie penguin weighbridge data 1994-2009 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.

本项研究系一项国际合作项目，旨在探讨南极罗斯岛和波弗特岛上的阿德利企鹅（Pygoscelis adelia）地理结构、新殖民地建立及种群变迁。该持续进行的研究将继续考虑限制或促进殖民地增长的资源相对重要性（筑巢栖息地、食物获取）；邻近殖民地之间剥削性或干扰性竞争对自然历史方面的影响（繁殖成功率、觅食努力）；影响后者的气候因素，尤其是海冰模式；以及影响殖民地增长作为初始规模和位置的函数的行为机制（迁徙、移民）。研究内容包括对已知年龄企鹅的普查、对觅食努力和殖民地之间重叠的研究；以及识别换羽和越冬地区的位置。