ABSTRACT: Marine wood-borers often live in sympatry, sharing deadwood scattered at sea, both as food and habitat. In this study, carbon and nitrogen isotope compositions were determined to test the hypothesis that the trophic niches of Chelura terebrans, Limnoria quadripunctata, and Nototeredo norvagica obtained from softwood boards maintained in running, unfiltered seawater are different. Comparison of isotope compositions supports niche partitioning, with N. norvagica foraging primarily on wood, and crustaceans foraging on decaying wood. Needs and acquisition routes for nitrogen determine the trophic behavior of the species. Results presented here are valuable for assessing the impact of wood-boring species on each other, but also for evaluating the effect of the separation of carbon and nitrogen sources on the diversity of the interactions between co-existing species belonging to the same trophic guild.

中文翻译：

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稳定同位素分析揭示了海洋木钻中的营养位

摘要：钻木bor经常生活在同伴生活中，它们共享着散落在海上的枯木，既是食物又是栖息地。在这项研究中，碳和氮同位素组成测定来测试的营养龛的假说Chelura terebrans，Limnoria quadripunctata和Nototeredo norvagica从软木获得的板保持在运行时，未经过滤的海水是不同的。同位素组成的比较支持N. norvagica的生态位分配主要在木材上觅食，而甲壳类在腐烂的木材上觅食。氮的需求和获取途径决定了物种的营养行为。此处提出的结果对于评估枯木物种之间的相互影响是有价值的，而且对于评估碳源和氮源的分离对属于同一个营养协会的共存物种之间相互作用的多样性的影响也很有价值。