New insights in insect prey choice by chimpanzees and gorillas in southeast Cameroon: The role of nutritional value
New insights in insect prey choice by chimpanzees and gorillas in southeast Cameroon: The role of nutritional value
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DOI：
10.1002/ajpa.20703
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发表时间：
2008-01-01
影响因子：
2.8
通讯作者：
Janssens, Geert P. J.
中科院分区：
文献类型：
--
作者：
Deblauwe, Isra;Janssens, Geert P. J.
描述了生活在喀麦隆东南部 Dja 生物圈保护区北缘的黑猩猩和大猩猩的昆虫饮食及其营养贡献。我们分析了粪便样本并记录了更多的食虫证据。提供了两种猿类的详细猎物物种清单。我们对 11 种重要元素和 8 种不重要元素进行了营养分析（常量营养素、常量和微量矿物质）。蚂蚁和白蚁的猎物种类，并估计昆虫每天的平均营养摄入量。尽管大猩猩更频繁地吃昆虫，但黑猩猩每天的平均猎物生物量摄入量是大猩猩的两倍。大猩猩缺乏工具使用并不是重要猎物物种少量重叠的主要原因。两种猿似乎都不会通过消耗蚂蚁猎物来获取一种或多种特定的营养物质。还应考虑其他因素，例如药物用途。另一方面，白蚁似乎是为了特定的营养而被选择的。大猩猩对重要白蚁猎物丘白蚁和胸白蚁的摄入量满足了估计的铁需求量。它们作为止泻治疗的潜在作用尚不清楚。黑猩猩对重要白蚁猎物Macrotermes spp.的摄入量满足了估计的锰需求量，并且每天的蛋白质摄入量（平均值：2克/天）达到了显着值（> 20克/天）。为了充分了解昆虫对喀麦隆猿类饮食营养贡献的重要性，应研究其饮食中水果和树叶的化学成分和营养摄入量。
The insect diet of chimpanzees and gorillas living at the northern periphery of the Dja Biosphere Reserve in southeast Cameroon and its nutritional contribution is described. We analyzed fecal samples and recorded additional evidence of insectivory. A detailed prey species list is presented for both apes. We carried out nutritional analyses (macronutrients, macro- and micro-minerals) on 11 important and eight nonimportant, but. accessible, ant and termite prey species, and estimated the average nutrient intake/day through insects. Although gorillas ate insects more frequently, the average prey biomass intake/day by chimpanzees was twice that by gorillas. The lack of tool-use by gorillas cannot be the main reason for the small overlap of important prey species. Both apes did not seem to consume ant prey for one or more specific nutrients. Also other factors, such as medicinal use, should be considered. Termites, on the other hand, seemed to be selected for particular nutrients. Gorilla intake of the important termite prey, Cubitermes and Thoracotermes, met with estimated iron requirements. Their potential role as antidiarrheal treatment is as yet unclear. Chimpanzee intake of the important termite prey, Macrotermes spp., met with estimated manganese requirements and the protein intake/day (mean: 2 g/d) reached significant values (> 20 g/d). To fully understand the importance of nutritional contributions of insects to ape diets in Cameroon, the chemical composition and nutrient intake of fruit and foliage in their diets should be investigated.