Environmental Factors Structuring Benthic Macroinvertebrate Communities of Agricultural Ditches in Maryland

Autor:	Joshua M. McGrath, Alan W. Leslie, Robert F. Smith, William O. Lamp, Brian A. Needelman, David E. Ruppert, Kreshnik Bejleri
Rok vydání:	2012
Předmět:	geography geography.geographical_feature_category River ecosystem Ecology Ditch Lake ecosystem Wetland Biology Benthic zone Insect Science Ordination Water quality Drainage Ecology Evolution Behavior and Systematics
Zdroj:	Environmental Entomology. 41:802-812
ISSN:	1938-2936 0046-225X
DOI:	10.1603/en12049
Popis:	Agricultural drainage ditches are artificial structures used to optimize soil hydrology for crop production and secondarily have been co-opted as a tool to manage the quality of water draining from agricultural lands. We investigated the relationship between the aquatic macroinvertebrate community and environmental variables associated with physical and biogeochemical processes that affect water quality. Aquatic macroinvertebrates were sampled along with physical and chemical measures of the soil and water from 29 agricultural drainage ditches on the Eastern Shore of Maryland. Cluster analysis and multivariate ordination showed that ditches that had higher flow velocities supported communities of lotic invertebrates (i.e., Stenelmis, Prosimulium) versus those that had properties of linear wetlands, which supported communities of lentic invertebrates (i.e., Oligochaeta, Caecidotea). Taxon richness varied from four to 31 taxa per ditch, and was higher within ditches that had higher flow velocities....
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f9cf2bedd91b70f45978ad9d183be87f https://doi.org/10.1603/en12049 Zobrazit plný text záznamu