阿尔及利亚埃尔卡拉国家公园两种同域性蛇的微生境偏好

R. Rouag, N. Ziane, S. Benyacoub
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引用次数: 0

摘要

摘要对阿尔及利亚东北部埃尔卡拉国家公园同域分布的两种lacertius (Lacertidae)种群的生境偏好进行了研究。研究了栖息地物理结构与种群密度之间的关系,以确定两种蜥蜴之间的最终分离。这两个物种在分布上存在差异。棘趾藓属严格意义上的陆生物种,通常比棘趾藓属(Psammodromus algirus)在沙地和更开阔的土地上发现,棘趾藓属可以穿透茂密的植被,通过爬上灌木寻找阳光充足的地方;这是赤藓藓无法控制的行为。研究结果证实了小生境尺度上的空间分离,支持了小生境选择是蜥蜴群落组织的重要因素,有助于减少潜在竞争的结论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Microhabitat Preferences of two Sympatric Lacertid in the National Park of El Kala, Algeria
Abstract Habitat preferences were studied in sympatric populations of two Lacertids, Psammodromus algirus and Acanthodactylus erythrurus (Lacertidae) from the National Park of El Kala (north-eastern Algeria). The relationship between habitat physical structure and population densities was studied in order to establish eventual segregation between the two lizards. A difference exists between the two species in their distributions. Acanthodactylus erythrurus is a strictly terrestrial species, usually found on sandy and more open grounds than Psammodromus algirus which can penetrate dense vegetation and look for sunny locations by climbing on shrubs; a behavior which A. erythrurus does not control. Our results confirm spatial segregation on a microhabitat scale, supporting the conclusions that microhabitat selection is an important factor in lizards community organization and contributing to reduce potential competition.
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