Interspecific Shell Fighting in Three Sympatric Species of Hermit Crabs in Hawaii
Interspecific Shell Fighting in Three Sympatric Species of Hermit Crabs in Hawaii
复制标题
夏威夷三种同域寄居蟹的种间壳斗
DOI：
--
复制
发表时间：
1970
期刊：
影响因子：
--
通讯作者：
B. Hazlett
中科院分区：
文献类型：
--
作者：
B. Hazlett
种间竞争通常很难衡量，因为两个（或多个）物种缺乏明确的限制因素。寄居蟹居住的腹足类外壳代表了每种动物生态需求中非常离散、可定义的部分。寄居蟹必须保护它柔软的腹部，否则很快就会被吃掉。此外，寄居蟹的仪式化的贝壳战斗行为模式（Hazlett，1966 a，1966 b，1967）提供了一个容易观察到的特定行为参数，反映了种间与种内竞争的程度。Levins（1968）提出，两个物种之间的生态位重叠度可以用种间竞争相互作用值（a.）所有对物种生态重要的因素。在本研究中，一个生态因子（腹足类壳）的相互作用系数。里斯（Reese，1968 a，1969）讨论过腹足类甲壳对螃蟹的重要性。艾德研究的物种是斑马隐翅虫、Laeuimanus和Calcineslatens，这些是在俄勒冈州卡内奥赫湾发现的最常见的潮间带隐士（Reese，1968 b）。这三个物种都属于Diogenidae，Diogeninae亚科，并且三者的贝壳战斗行为模式非常相似。(They与在瑞典研究的两种Pegurus的模式相比，它们之间的相似性要大得多[Hazlett，1967] ;准备中的一篇论文将讨论Calcines属中这种模式的相似性，而不是Pagm //S属中的变异性。三种蟹都是潮间带的，在微-
INTERSPECIFIC COMPETITION is often difficult to measure due to the lack of a definitive limiting factor for the two (or more) species. The gastropod shell inhabited by a hermit crab represents a very discrete, definable portion of the ecological needs of every animal. A hermit crab must have protection for its soft abdomen or it will rather quickly be eaten. In addition, the ritualized shell fighting behavior patterns of hermit crabs (Hazlett, 1966a, 1966b, 1967) offer an easily observed specific behavioral parameter which reflects the extent of interspecific vs. intra specific competition for this ecological factor. Levins (1968) has proposed that the degree of niche overlap between two species can be calculated as the summat ion of interspecific competition interaction values (a.) for all the factors of ecological importance to the species. In the present study, interaction coefficients for one ecological factor (gastropod shells) were obtained . Some of the ways in which a gastropod shell is important for a crab have been discussed by Reese ( 1968a, 1969 ) . The species studi ed were Clibanarius zebra, Calcinus laeuimanus, and Calcines latens, These are the most common intertidal hermits found in Kaneohe Bay, Oahu (Reese, 1968b ) . These three species are in the family Diogenidae, subfamily Diogeninae, and the shell fighting behavior patterns of the three are very similar. (They are much more similar to one another than are the patterns of the two species of Pegurus studied in Sweden [Hazlett, 1967] ; a pape r in preparation will discuss the similarity of such patterns within the genus Calcines as opposed to the variability with in the genus Pagm //S ) . All three crabs are intertidal and overlap in micro-