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首页> 外文期刊>Primates >Tree community structure reflects niche segregation of three parapatric squirrel monkey species ( Emphasis Type='Italic'>Saimiri/Emphasis> spp.)
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Tree community structure reflects niche segregation of three parapatric squirrel monkey species ( Emphasis Type='Italic'>Saimiri/Emphasis> spp.)

机译：树群落结构反映了三个扶鼠猴种的利基隔离（＆强调=“斜体”> Saimiri＆ /重点> SPP。）

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Integration between ecology and biogeography provides insights into how niche specialization affects the geographical distribution of species. Given that rivers are not effective barriers to dispersal in three parapatric species of squirrel monkeys ( Saimiri vanzolinii , S. cassiquiarensis and S. macrodon ) inhabiting floodplain forests of Central Amazonia, we tested whether forest structure and tree diversity may explain species differences in niche specialization and spatial segregation. We sampled 6617 trees of 326 species in three habitats (high várzea, low várzea and chavascal) used by three Saimiri species, and estimated tree species richness in each of them. For each tree, we measured variables known to influence habitat use in primates, such as crown area and presence of lianas, epiphytes and hemi-epiphytes. We used ANOVA to compare these variables and performed multivariate analyses (NMDS, ANOSIM and SIMPER) to evaluate dissimilarities in forest structure among each habitat inhabited by the three Saimiri species. We identified differences in the tree species richness, crown area and presence of lianas, epiphytes and hemi-epiphytes between the three habitats for all Saimiri species. NMDS demonstrated that areas of high and low várzeas occupied by S. vanzolinii were clearly separated from the other species. We also found that different plant species contributed to dissimilarity among Saimiri ranges. Our findings support the hypothesis that tree community structure may promote niche specialization and spatial segregation among primates. We discuss how these patterns could have been favored by historical changes in forest flood patterns, the evolutionary history of Saimiri spp., and past competition.
机译：生态和生物地理之间的整合提供了利基专业化如何影响物种地理分布的见解。鉴于河流在三个鼠猴（Saimiri Vanzolinii，S. Cassimarensis和S. Cassiquirensis和S. Macrodon）中的三个宫廷物种中的障碍是无效的障碍，我们测试了森林结构和树多样性是否可以解释利基专业化的物种差异和空间隔离。在三种塞里吉物种使用的三种栖息地（高várzea，低várzea和chavascal）中，我们在326种326种物种树上进行了取样，并在每个人中使用估计的树种丰富。对于每棵树，我们测量已知的变量影响栖息地用于灵长类动物的栖息地，例如Crown Area和Lianas，eBiphytes和Hemi-eBiphytes的存在。我们使用ANOVA来比较这些变量并进行多元分析（NMDS，Anosim和Simper），以评估由三种Saimiri物种居住的每个栖息地之间的森林结构中的异化。我们鉴定了所有Saimiri物种的三种栖息地之间的树种丰富度，冠状区域和Lianas，腰果和半切片的存在差异。 NMDS展示了由S. Vanzolinii占据的高和低várzeas的区域与其他物种明显分离。我们还发现不同的植物物种导致塞里丽范围之间的不同。我们的调查结果支持树木结构结构可能在灵长类动物中促进利基专业化和空间隔离的假设。我们讨论这些模式如何受到森林洪水模式的历史变化，Saimiri SPP的进化史上的历史变化。和过去的竞争。

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