An Index of Biotic Condition Based on Bird Assemblages in Great Lakes Coastal Wetlands
نویسندگان
چکیده
منابع مشابه
An Index of Ecological Condition Based on Bird Assemblages in Great Lakes Coastal Wetlands
We use bird distributions in non-forested coastal wetlands of the Great Lakes to illustrate a new, conceptually explicit method for developing biotic indicators. The procedure applies a probabilistic framework to derive an index that best “fits” an observed assemblage of species, based on preliminary information about species’ responses to human environmental disturbance. Among 215 coastal wetl...
متن کاملEvaluation of geographic, geomorphic and human influences on Great Lakes wetland indicators: A multi-assemblage approach
Developing effective indicators of ecological condition requires calibration to determine the geographic range and ecosystem type appropriate for each indicator. Here, we demonstrate an approach for evaluating the relative influence of geography, geomorphology and human disturbance on patterns of variation in biotic indicators derived from multiple assemblages for ecosystems that span broad spa...
متن کاملA test of the variability and usefulness of SOLEC indicators in wetlands of Lakes Huron and Michigan
Introduction Development of indicators of " ecosystem health " for Great Lakes coastal wetlands was recognized as a major need at the State-of-the-Lakes Ecosystem Conferences (SOLEC) held in Buffalo, New York in 1998 and Hamilton, Ontario in 2000. Indicators listed by the wetlands indicators task force at these conferences included indices of biotic integrity (IBI) based on macroinvertebrates, ...
متن کاملAre Anurans of Great Lakes Coastal Wetlands Reliable Indicators of Ecological Condition?
Frogs and toads (anurans) are sensitive to a variety of anthropogenic stressors and are widely suggested as indicators of ecological condition. We surveyed 220 coastal wetlands along the U.S. shores of the Laurentian Great Lakes and quantified relationships between presence of anuran species and degree of anthropogenic disturbance. Results were used to derive explicit, functional relationships ...
متن کاملTesting a Fish Index of Biotic Integrity for Responses to Different Stressors in Great Lakes Coastal Wetlands
Fish community composition often varies across ecoregions and hydrogeomorphic types within ecoregions. We evaluated two indices of biotic integrity (IBIs) developed for fish in Great Lakes coastal wetlands dominated (> 50% cover) by Typha (cattail) and Schoenoplectus (formerly Scirpus) (bulrush) vegetation. Thirty-three coastal wetlands dominated by either Typha or Schoenoplectus vegetation wer...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009