文章基本信息

标题：Spatial Complexity Measured at a Multi-Scale in Three Aquatic Plant Species
本地全文：下载
作者：Eric D. Dibble ; Sidinei M. Thomaz ; Andr A. Padial 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2006
卷号：21
期号：2
页码：239-247
DOI：10.1080/02705060.2006.9664992
出版社：Taylor & Francis
摘要：We investigated the hypothesis that available habitat heterogeneity within an aquatic plant bed is scale dependent. A multi-scale approach was used to quantify spatial-complexity at five different scales of resolution in three different aquatic plants species (Cabomba furcata, Najas microcarpa, and Utricularia foliosa) collected from lagoons in the Upper Paran River floodplain basin, Brazil. The effect of scale upon spatial-complexity was highly significant and interactions between species and scale were also significant, suggesting that habitat heterogeneity was scale dependent and plants contained a species-specific threshold where complexity was highest. Our data represent scale dependent heterogeneity potentially important at mediating biological interactions in aquatic plants and provide a starting point for investigating multi-scale based hypotheses explaining physical and biological interactions among aquatic organisms and vegetated habitat.