Assessing ant assemblages: pitfall trapping versus nest counting (Hymenoptera, Formicidae)
Assessing ant assemblages: pitfall trapping versus nest counting (Hymenoptera, Formicidae)
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评估蚂蚁组合：陷阱诱捕与巢计数（膜翅目、蚁科）
DOI：
10.1007/s00040-006-0869-6
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发表时间：
2006
期刊：
影响因子：
1.3
通讯作者：
E. Christian
中科院分区：
文献类型：
--
作者：
B. C. Schlick;F. M. Steiner;K. Moder;A. Bruckner;K. Fiedler;E. Christian
陷阱诱捕和巢计数是蚂蚁聚集最常见的普查方法。我们研究了陷阱渔获量和巢数之间的一致性在干燥的草地上。Bray Curtis相似性指数的斯皮尔曼等级相关性和非度量多维缩放显示，两种方法整理的数据之间存在中度一致性，但总体上与方法相关的差异相当大。这种差异受土地管理方式的影响，而不受诱捕时间和样地形状的影响。诱捕成功取决于巢密度，地面植被覆盖和物种特异性特征（居住层，殖民地的大小，觅食距离）。即使考虑到这些因素，陷阱陷阱和巢密度值的可转换性是不能令人满意的：人口普查方法被证明是至关重要的设计蚂蚁生态研究和解释文献数据。
Pitfall trapping and nest counting are the most common census methods for ant assemblages. We examined the concordance between pitfall catches and nest counts on dry grassland. Spearman rank correlations and non-metric multidimensional scaling of the Bray Curtis similarity index revealed moderate concordance between the data collated by the two methods, but overall method-related differences were considerable. The dissimilarity was influenced by the type of land management, but not by trapping period or plot shape. Trapping success depended on nest density, ground vegetation cover and species-specific traits (inhabited stratum, colony size, foraging distance). Even when these factors were taken into account, the convertibility of pitfall trap and nest density values was unsatisfactory: the census method proved to be crucial in designing ant-ecological studies and interpreting literature data.