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首页> 外文期刊>Ostrich >The impact of burning on the microhabitat used by two species of couas in the western dry forest of Madagascar.
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The impact of burning on the microhabitat used by two species of couas in the western dry forest of Madagascar.

机译：燃烧对马达加斯加西部干旱森林中两种可可豆使用的微生境的影响。

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摘要

Habitat structure- an important consideration in all ecological studies of relationships between animals and their environment - can be studied at different scales. This topic was studied at the microhabitat scale in burned and unburned plots of a dry forest of Madagascar. The response of two endemic terrestrial coua (Coua coquereli and C. ruficeps) to burning was studied, at a microhabitat scale (involving the definition of several microhabitat variables relating to foraging sites of the two species), by comparing burned and unburned plots in a dry forest of Madagascar. There were significant differences between burned and unburned plots in terms of the microhabitat variables that were measured. The two species responded differently to the burning effect. In unburned forest, Coquerel's Coua (Coua coquereli) was restricted to places where tree dispersion and stem density were the most important variables in their foraging sites. The Redcapped Coua Coua ruficeps foraged more often at places where understorey vegetation was not well developed. Burning was not beneficial for Coquerel's Coua, because this species was restricted to favourable foraging sites and had to increase its territory size to find its food. Burning may be favourable for the Red-capped Coua, by increasing prey detectability.
机译：栖息地结构是所有关于动物与环境之间关系的生态研究中的重要考虑因素，可以在不同的尺度上进行研究。在马达加斯加干旱森林的未燃烧土地和未燃烧土地的微型栖息地规模上研究了该主题。通过比较一个栖息地的燃烧和未燃烧地块，研究了两个地方性陆地库阿（Coua coquereli和C. ruficeps）对燃烧的反应，以微生境规模（涉及与两个物种觅食部位有关的几个微生境变量的定义）。马达加斯加的干旱森林。就测得的微生境变量而言，在燃烧区和未燃烧区之间存在显着差异。这两个物种对燃烧效果的反应不同。在未燃烧的森林中，Coquerel的Coua（Coua coquereli）被限制在树木分散和茎密度是其觅食地点最重要变量的地方。红顶美洲豹红褐豆经常在底层植被发育不良的地方觅食。燃烧对Coquerel的Coua不利，因为该物种仅限于有利的觅食地点，必须增加其领土面积才能觅食。通过增加猎物的可探测性，燃烧对于红顶古阿可能是有利的。

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