Changes in the Trophic Structure of Benthic Macroinvertebrate Communities Associated with Food Availability and Stream Flow Variations
作者:
A. Basaguren,
A. Elosegul,
J. Pozo,
期刊:
Internationale Revue der gesamten Hydrobiologie und Hydrographie
(WILEY Available online 1996)
卷期:
Volume 81,
issue 1
页码: 79-91
ISSN:0020-9309
年代: 1996
DOI:10.1002/iroh.19960810109
出版商: Akademie Verlag, Berlin
关键词: macroinvertebrates;functional groups;food availability;flow;stream;Spain
数据来源: WILEY
摘要:
AbstractMacroinvertebrate communities were studied in relation to food (particulate organic matter and periphyton) availability and hydrologic regime in two reaches (autotrophic and heterotrophic) of the Agüera stream (Northern Spain). The structure of macroinvertebrate community reflected the trophic characteristics (main food sources) at each site. From a temporal point of view, both food availability and hydrologic regime seem to be the main factors that determine the dynamics and structure of the community. In the autotrophic reach, shredder density showed significant relationship with CPOM, and scrapers with periphyton both in terms of density and biomass
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