LTREB: Long Term Studies of African Lions

9903416包装非洲狮保卫共同的领地，这些领地有足够的食物、水和庇护所，可以成功繁殖。然而，一些狮群的繁殖率一直高于其他物种，这可能是由于它们领地内关键资源的丰度或分布存在差异。这个LTREB项目将在地理信息系统分析中使用长期的人口和测距数据，以衡量特定景观特征对生活在坦桑尼亚塞伦盖蒂和恩戈罗陨石坑的狮子的价值。这些数据将阐明景观异质性对领地大小和局部人口密度的影响，并为群体属地博弈模型提供基础。总体种群数据还将被用来确定狮子的数量是否受食物、疾病或领土的影响，并将被用来评估恩戈罗陨石坑最近的下降是否是近亲繁殖的累积效应造成的。这些分析涉及与加拿大、南非、坦桑尼亚和英国的科学家合作。

9903416PackerAfrican lions defend joint territories that contain enough food, water and shelter for successful reproduction. However, some prides consistently reproduce at higher rates than others, presumably due to differences in the abundance or distribution of key resources within their territories. This LTREB project will use long-term demographic and ranging data in a GIS analysis to measure the value of specific landscape features to lions living in the Serengeti and Ngorongoro Crater, Tanzania. These data will clarify the influence of landscape heterogeneity on territory size and local population density and provide the foundation for game-theoretical models of group territoriality. The overall population data will also be used to determine whether lion numbers are regulated by food, disease, or territory, and will be used to assess whether the recent decline in the Ngorongoro Crater has resulted from the cumulative effects of close inbreeding. These analyses involve collaborations with scientists in Canada, South Africa, Tanzania, and the UK.