A new approach to graphical analysis of feeding strategy from stomach contents data - Modification of the Costello (1990) method
A new approach to graphical analysis of feeding strategy from stomach contents data - Modification of the Costello (1990) method
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DOI：
10.1006/jfbi.1996.0060
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发表时间：
1996-04-01
影响因子：
2
通讯作者：
Staldvik, FJ
中科院分区：
文献类型：
--
作者：
Amundsen, PA;Gabler, HM;Staldvik, FJ
本文提出了一种改进的图形Costello方法用于胃内容物数据的分析。新的方法允许猎物的重要性，喂养策略和生态位宽度的个体间和个体内的组成部分，以探索使用图形表示。该分析是基于一个二维的代表性的猎物特定的丰度和发生频率的不同猎物类型的饮食。本文介绍了这种新方法及其参数，并给出了应用实例。该方法可能是特别适合的最佳觅食，竞争和生态位理论的预测检查。(C)1996年不列颠群岛渔业协会
A modification of the graphical Costello method is proposed for the analysis of stomach contents data. The new method allows prey importance, feeding strategy and the inter- and intra-individual components of niche width to be explored using graphical presentation. The analysis is based on a two-dimensional representation of prey-specific abundance and frequency of occurrence of the different prey types in the diet. The paper describes the new method and the parameters therein, and also present some examples of the utilization of the method. The method may be particularly well-suited for the examination of predictions made from optimal foraging, competition and niche theories. (C) 1996 The Fisheries Society of the British Isles