Area and the latitudinal diversity gradient for terrestrial birds
Area and the latitudinal diversity gradient for terrestrial birds
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DOI：
10.1046/j.1461-0248.2001.00271.x
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发表时间：
2001-11-01
期刊：
影响因子：
8.8
通讯作者：
Porter, EE
中科院分区：
文献类型：
--
作者：
Hawkins, BA;Porter, EE
我们测试的假设，面积代表纬度多样性梯度的主要解释，使用繁殖的陆地鸟类的北美，北方古北，澳大利亚和非洲热带作为我们的焦点组。我们测试了两个命题固有的区域假说：（1）热带生物群落大于热带以外的生物群落，（2）有一个显着的物种面积的关系，鸟类在生物群落尺度的分辨率。使用一个更现实的生物群落的定义，其中包括能源和水的影响，我们发现没有支持这两个命题，导致我们得出结论，该地区本身并不能解释陆地纬度多样性梯度。
We tested the hypothesis that area represents the primary explanation for the latitudinal diversity gradient using breeding terrestrial birds of North America, the northern Palearctic, Australia and the Afrotropics as our focal group. We tested two propositions inherent to the area hypothesis: (1) tropical biomes are larger than extra-tropical biomes, and (2) there is a significant species-area relationship for birds at the biome scale of resolution. Using a more realistic definition of biomes which incorporates the effects of both energy and water, we find no support for either proposition, leading us to conclude that the area per se does not explain terrestrial latitudinal diversity gradients.