MORPHOLOGICAL AND DIETARY STRUCTURING OF A ZAMBIAN INSECTIVOROUS BAT COMMUNITY
MORPHOLOGICAL AND DIETARY STRUCTURING OF A ZAMBIAN INSECTIVOROUS BAT COMMUNITY
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DOI：
10.2307/1937180
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发表时间：
1983-01-01
期刊：
影响因子：
4.8
通讯作者：
BLACK, H
中科院分区：
文献类型：
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作者：
FINDLEY, JS;BLACK, H
9种鱼的食性和外部形态。[Cloeotis percivali，蹄蝠Hipposideros caffer，长翼蝠Miniopterus schreibersi，黑蝠Nycteris thebaica，黑蝠N. woodi，新单胞菌N. macrotis、模拟菊头蝠Rhinolophus simulator、菊头蝠R. swinnyi和R. blasii]的食虫蝙蝠从赞比亚，东非进行了比较，使用多变量方法。物种之间的形态和饮食相似性呈正相关，也就是说，类群彼此相似的最强烈的形态也最相似的饮食摄入量。一个物种的形态和饮食的独特性的程度呈正相关，其形态和饮食的变异性。例如，在形态或饮食上与其他物种截然不同的物种在这两个属性上也往往是相当可变的。蝙蝠的形态是强烈的预测他们的饮食，大多数饮食的变化占形态的变化，和第一形态主成分预测的存在，在饮食中的鳞翅目，甲虫和直翅目具有很高的意义。这些结果导致了一个模型的社区组织密切相关的物种，其中相对大量的专家与不变的属性聚集在社区质心附近和一个小数目的独特的，可变的物种占据壁龛更远离质心。
Diet and external morphology of 9 spp. [Cloeotis percivali, Hipposideros caffer, Miniopterus schreibersi, Nycteris thebaica, N. woodi, N. macrotis, Rhinolophus simulator, R. swinnyi and R. blasii] of insectivorous bats from Zambia, East Africa, were compared using multivariate methods. Morphological and dietary resemblance between species were positively correlated; that is, taxa which resembled each other most strongly morphologically were also most similar in dietary intake. The degree of morphological and dietary distinctiveness of a species was positively correlated with its morphological and dietary variability. For example, species which are quite distinct from others in morphology or diet tend also to be quite variable in those 2 attributes. Morphology of the bats was strongly predictive of their diets; most dietary variance was accounted for by morphological variance, and the 1st morphlogical principal component predicted the presence in the diet of Lepidoptera, beetles and Orthoptera with a high level of significance. These results led to a model of community organization for closely related species in which a relatively large number of specialists with invariant attributes are clustered near the community centroid and a smaller number of distinctive, variable species occupy niches more distant from the centroid.