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首页> 外文期刊>Canadian Journal of Zoology >Geographical ecology of the gymnophthalmid lizard Neusticurus ecpleopus inthe Amazon rainforest
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Geographical ecology of the gymnophthalmid lizard Neusticurus ecpleopus inthe Amazon rainforest

机译:亚马逊雨林中裸眼科蜥蜴Neusticurus ecpleopus的地理生态

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摘要

Lizards in four distantly separated populations of the gymnophthalmid lizard Neusticurus ecpleopus in the Amazon region of South America were strikingly specific in habitat and microhabitat use, being restricted to streams and swamps and living between the water line and the bank-forest interface. They were as likely to be active during cloudy periods as during sunny periods, but most individuals were not exposed to direct insolation while active. Activity occurred through much of the day, with most activity at two sites during between 11:00 and 14:30. Body temperatures were 27.0 +/- 0.02 degrees C and were correlated with substrate temperatures. Body temperatures were higher than substrate temperatures, indicating behavioral or possibly physiological thermoregulation. These lizards ate a variety of prey, but eight prey categories accounted for a major proportion of the total diet at all sites. There were differences among sites in prey type, prey size, relative prey size, and total stomach fullness. Even though there was some size variation among sites, variation in other morphological characters was more striking. Even withstanding the differences among populations in ecological and morphological characteristics, it appears that much of the ecology of N. ecpleopus is constrained by fidelity to specific habitat patches (stream banks) distributed linearly through lowland tropical forest.
机译:南美亚马逊地区裸眼蜥蜴Neusticurus ecpleopus的四个相距遥远的种群中的蜥蜴在生境和微生境用途上具有明显的特异性,它们被限制在溪流和沼泽中,并且生活在水线和河岸-森林交界之间。它们在阴天时和晴天时一样活跃,但是大多数人在活跃时都没有暴露在直射的阳光下。活动在一天中的大部分时间进行,大多数活动在11:00至14:30之间在两个站点进行。体温为27.0 +/- 0.02摄氏度,并且与底物温度相关。体温高于底物温度,表明行为或生理上的温度调节。这些蜥蜴吃了各种各样的猎物,但八种猎物类别在所有场所的总饮食中占很大比例。猎物类型,猎物大小,相对猎物大小和总胃部饱满程度之间存在差异。即使位点之间存在一些大小差异,其他形态特征的差异也更为明显。即使在种群和种群之间的生态和形态特征上存在差异,看来依普度猪笼草的许多生态都受到对低地热带森林线性分布的特定生境斑块(流库)的保真度的限制。

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