Origins and Affinities of Vertebrates of the North American Sonoran Desert and the Monte Desert of Northwestern Argentina
Origins and Affinities of Vertebrates of the North American Sonoran Desert and the Monte Desert of Northwestern Argentina
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北美索诺兰沙漠和阿根廷西北部蒙特沙漠脊椎动物的起源和亲缘关系
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
M. Mares
中科院分区：
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作者：
W. F. Blair;A. C. Hulse;M. Mares
阿根廷的蒙特沙漠和北美的索诺兰沙漠在物理环境的大部分方面都非常相似。讨论了这两个沙漠中三类脊椎动物动物群的起源和亲缘程度。异温带表现出高度的地方性，72.0%的蒙特种为蒙特特有种或蒙特-查科分布种，61-4%的索诺拉沙漠异温种为西南荒漠特有种。哺乳动物表现出很低的特有性，它们的沙漠居民通常属于广泛的物种。在这些脊椎动物中，只有哺乳动物在物种数量上显示出两个沙漠之间的巨大差异，索诺兰沙漠的物种数量是蒙特沙漠的两倍多。至少从中新世开始，在整个新生代和现在的蒙特查科-巴塔哥尼亚地区，北美西部的大部分地区似乎都在进行沙漠适应。这两个沙漠之间共享的唯一物种和大多数属是广泛分布的哺乳动物或游荡性哺乳动物。在这两个沙漠中，只有七个无尾两栖动物科中的一个是共同的。爬行动物有许多共同的家族，而这两个沙漠的哺乳动物的共同家族相对较少。
The Monte Desert of Argentina and the Sonoran Desert of North America are very similar in most aspects of their physical environments. The origins and the degree of affinity of the faunas of three classes of vertebrates in the two deserts are discussed. Heterotherms show high endemism, with 72 0 % of the Monte species either endemic to the Monte or with Monte-Chaco distribution and with 61-4% of the Sonoran Desert heterotherms endemic to deserts of the southwest. Mammals show low endemism and their desert inhabitantsgenerally belong to wide-ranging species. Mammals alone among these vertebrates show wide disparity between the two deserts in number of species, with more than twice as many in the Sonoran Desert as in the Monte. Desert adaptation seems to have been occurring over much of western North America throughout much of the Cenozoic and in the present MonteChaco-Patagonia region since at least the Miocene. The only species and most of the genera shared between the two deserts are wide ranging or volant mammals. Only one of seven families of anurans is common to both deserts. Reptiles have many families in common, while mammals of the two deserts have relatively few families in common.