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首页> 外文期刊>American journal of primatology >Neotropical Primate Communities: Effects of Disturbance, Resource Production and Forest Type Heterogeneity
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Neotropical Primate Communities: Effects of Disturbance, Resource Production and Forest Type Heterogeneity

机译：新热带灵长类动物群落：干扰，资源生产和森林类型异质性的影响

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Undisturbed primate communities in the Neotropics are bottom-up structured as their biomass and species richness can be predicted from fruit production. However, the effects of fruit scarcity and the availability of forest types have not been fully analyzed, and seasonality is expected to differently affect small and large monkeys. The first aim of this study was to examine the effect of contrasting forest types within a location on the temporal variation in fruit production. The second was to assess the relative roles of disturbance, climate, patterns of fruit and leaf production, and plant composition on determining Neotropical primate communities. I compiled population density data for diurnal primate species from 154 sites to calculate species richness and assemblage biomass. Fruit abundance in the study sites was estimated from fruit trap data and phenology transects, and fruit variability was calculated as the monthly coefficient of variation (CV) and the length of the fruit scarcity period (LFSP). The results indicate that fruit production in floodplain forests is generally more variable than in terra firme forests, and this variation decreases in habitats with mixed forest types. Endozoochorous fruit production (based on fruit traps) and litter productivity were good predictors of the biomass of Neotropical primates (R-2 = 0.83 and R-2 = 0.59, respectively), but neither CV nor LFSP were good predictors. The biomass of large primates was independent of rainfall variation, but the biomass of small and medium sized monkeys was negatively correlated with temporal rainfall variability. Varzea forests tended to show higher biomass than those from terra firme and igapo. These results suggest that the production of fleshy fruits is the best predictor of the structure of primate assemblages in the Neotropics, but the effect of leaf quality and productivity remains to be investigated. (C) 2015 Wiley Periodicals, Inc.
机译：新热带地区不受干扰的灵长类动物群落是自下而上的结构，因为它们的生物量和物种丰富度可以从水果生产中预测出来。但是，水果短缺的影响和森林类型的可获得性尚未得到充分分析，并且季节性预计会影响大小猴子。这项研究的第一个目的是研究某个地点不同森林类型对水果生产时间变化的影响。第二是评估干扰，气候，水果和叶片生产方式以及植物组成对确定新热带灵长类动物群落的相对作用。我收集了154个地点的昼夜灵长类物种的种群密度数据，以计算物种丰富度和组合生物量。根据果实诱集物数据和物候断面估计研究地点的果实丰度，并根据月度变异系数（CV）和果实短缺期的长度（LFSP）计算果实变异性。结果表明，洪泛区森林中的水果生产通常比硬地林中的水果变化更大，并且这种变化在混合森林类型的生境中减少。内生水果的产量（基于陷阱）和产仔率是新热带灵长类动物生物量的良好预测指标（分别为R-2 = 0.83和R-2 = 0.59），但CV和LFSP都不是良好的预测指标。大型灵长类动物的生物量与降雨的变化无关，但中小型猴子的生物量与时间的降雨变化呈负相关。 Varzea森林的生物量往往高于terra Firme和igapo的生物量。这些结果表明，肉质水果的生产是新热带地区灵长类动物集合体结构的最佳预测指标，但叶片质量和生产力的影响尚待研究。 （C）2015年Wiley Periodicals，Inc.

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