Does habitat disturbance affect stress, body condition and parasitism in two sympatric lemurs?
Does habitat disturbance affect stress, body condition and parasitism in two sympatric lemurs?
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DOI：
10.1093/conphys/cow034
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发表时间：
2016
影响因子：
2.7
通讯作者：
Kraus C
中科院分区：
文献类型：
--
作者：
Rakotoniaina JH;Kappeler PM;Ravoniarimbinina P;Pechouskova E;Hämäläinen AM;Grass J;Kirschbaum C;Kraus C
了解动物如何应对人类引起的环境变化是保护生物学的一个关键问题。由于它们与健康的潜在相关性，一些生理参数通常被用来评估栖息地干扰对动物总体健康状况的影响。在这里，我们研究了两种狐猴——肥尾侏儒狐猴（Cheirogaleus medius）和灰鼠狐猴（Microcebus murinus）如何应对不断变化的环境条件，方法是比较马达加斯加西部基林迪森林四个栖息地的压力水平（以毛发皮质醇浓度来衡量）、寄生性和一般身体状况，这些栖息地按照人类干扰的梯度排列。这两个物种此前曾表现出对人类干扰的不同反应。 M. murinus 被认为是一种有弹性的物种，而 C. medius 很少在受到高度干扰的栖息地中遇到。然而，头发皮质醇浓度、寄生模式（患病率、寄生虫物种丰富度和多重感染率）和身体状况在人为干扰梯度上都没有变化。我们的结果表明，Kirindy 森林的人类活动的影响并未反映在这两个物种的总体健康状况中，这可能已经发展出一系列行为适应措施来应对次优条件。尽管如此，不同地点之间相对密度的差异表明，受干扰栖息地的承载能力较低，并且两个物种对环境变化的反应不同，其中 C. medius 受到的负面影响更大。因此，即使对于行为灵活的物种，栖息地的长期恶化也可能会阻碍种群的长期生存。
Understanding how animals react to human-induced changes in their environment is a key question in conservation biology. Owing to their potential correlation with fitness, several physiological parameters are commonly used to assess the effect of habitat disturbance on animals’ general health status. Here, we studied how two lemur species, the fat-tailed dwarf lemur (Cheirogaleus medius) and the grey mouse lemur (Microcebus murinus), respond to changing environmental conditions by comparing their stress levels (measured as hair cortisol concentration), parasitism and general body condition across four habitats ordered along a gradient of human disturbance at Kirindy Forest, Western Madagascar. These two species previously revealed contrasting responses to human disturbance; whereas M. murinus is known as a resilient species, C. medius is rarely encountered in highly disturbed habitats. However, neither hair cortisol concentrations nor parasitism patterns (prevalence, parasite species richness and rate of multiple infections) and body condition varied across the gradient of anthropogenic disturbance. Our results indicate that the effect of anthropogenic activities at Kirindy Forest is not reflected in the general health status of both species, which may have developed a range of behavioural adaptations to deal with suboptimal conditions. Nonetheless, a difference in relative density among sites suggests that the carrying capacity of disturbed habitat is lower, and both species respond differently to environmental changes, with C. medius being more negatively affected. Thus, even for behaviourally flexible species, extended habitat deterioration could hamper long-term viability of populations.
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影响因子：
5.2
作者：
Brearley, Grant;McAlpine, Clive;Bradley, Adrian
通讯作者：
Bradley, Adrian
影响因子：
2.7
作者：
Carlitz, Esther H. D.;Kirschbaum, Clemens;van Schalk, Carel P.
通讯作者：
van Schalk, Carel P.
影响因子：
8.5
作者：
Cooke, Steven J.;O'Connor, Constance M.
通讯作者：
O'Connor, Constance M.
影响因子：
--
作者：
Crowley, B. E.;Blanco, M. B.;Irwin, M. T.
通讯作者：
Irwin, M. T.
DOI：
10.1111/j.2517-6161.1995.tb02031.x
发表时间：
1995-01-01
影响因子：
5.8
作者：
BENJAMINI, Y;HOCHBERG, Y
通讯作者：
HOCHBERG, Y