Multivariate spatial patterns analysis of environmental variables and benthic metrics in five California waterbodies

التفاصيل البيبلوغرافية
العنوان: Multivariate spatial patterns analysis of environmental variables and benthic metrics in five California waterbodies
المؤلفون: William D. Killen, Raymond W. Alden, Lenwood W. Hall, Ronald D. Anderson
المصدر: Journal of environmental science and health. Part A, Toxic/hazardous substancesenvironmental engineering. 54(14)
سنة النشر: 2019
مصطلحات موضوعية: 0106 biological sciences, Multivariate statistics, Aquatic Organisms, Geologic Sediments, Environmental Engineering, 0507 social and economic geography, STREAMS, 010603 evolutionary biology, 01 natural sciences, California, Rivers, Animals, Ecosystem, Ecology, 05 social sciences, Sampling (statistics), Sediment, General Medicine, Taxon, Habitat, Benthic zone, Multivariate Analysis, Spatial ecology, Environmental science, 050703 geography, Water Pollutants, Chemical, Environmental Monitoring
الوصف: Multivariate spatial patterns of 38 environmental variables (habitat metrics, metals, pyrethroids and sediment characteristics) and 14 benthic metrics were determined from over a decade of sampling in five California waterbodies. Canonical discriminant analyses produced very highly significant separations of the five watersheds based on environmental variables. The discriminant analyses based on benthic metrics also produced highly significant separations, although confidence ellipses were not quite as well separated as the environmental variables. Separation of creeks made ecological sense as Pleasant Grove Creek (PGC), which appeared to have greater habitat quality also had benthic metrics indicative of less stressed benthic communities, while the Santa Maria River watershed (SM) appeared to have lower habitat quality and more toxicants in the sediments also appeared to have benthic communities indicative of stress-tolerant taxa. The benthic community health of the other three creeks (Arcade Creek [ARC], Kirker Creek [KC] and Salinas Streams [SAL]) were considered intermediate in apparent stress between PGC and SM. Overall, benthic communities were somewhat more similar between creeks than were the environmental conditions. Benthic communities have greater overlap in characteristics than would be expected from environmental conditions, perhaps due to a greater resilience since they are generally dominated by tolerant benthic taxa.
تدمد: 1532-4117
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd9500e72393efc87498d8e701302e11
https://pubmed.ncbi.nlm.nih.gov/31480868
رقم الانضمام: edsair.doi.dedup.....fd9500e72393efc87498d8e701302e11
قاعدة البيانات: OpenAIRE