Use of avian and mammalian guilds as indicators of cumulative impacts in riparian: wetland areas

To determine how anthropogenic disturbances along riparian-wetland areas of watershed affected the structure of wildlife communities, 2 watersheds in Pennsylvania were studied, a relatively undisturbed reference watershed and a watershed disturbed by agricultural and residential development. The wat...

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Bibliographic Details
Published in:Environmental management (New York) 1991-09, Vol.15 (5), p.701-714
Main Authors: Croonquist, M.J. (Pennsylvania State University, University Park, PA), Brooks, R.P
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Aves
BASSIN VERSANT
Biological and medical sciences
BIRDS
BOSQUES
COMMUNITY ECOLOGY
COURS D'EAU
CUENCAS HIDROGRAFICAS
CURSOS DE AGUA
ECOLOGIA
ECOLOGIE
ECOLOGY
ENCUESTAS
ENQUETE
ENVIRONMENTAL ASSESSMENT
FAUNE ET FLORE SAUVAGES
FORESTS
FORET
Freshwater
Fundamental and applied biological sciences. Psychology
HABITAT
HABITATS
LAND USE
MAMIFEROS
Mammalia
MAMMALS
MAMMIFERE
OISEAU
PAJAROS
PENNSYLVANIA
PENNSYLVANIE
response guilds
RIVERS
SURVEYS
Synecology
TERRE HUMIDE
Terrestrial ecosystems
TIERRAS HUMEDAS
UTILISATION DES TERRES
UTILIZACION DE LA TIERRA
VIDA SILVESTRE
WATERSHEDS
WETLANDS
WILDLIFE
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Summary:To determine how anthropogenic disturbances along riparian-wetland areas of watershed affected the structure of wildlife communities, 2 watersheds in Pennsylvania were studied, a relatively undisturbed reference watershed and a watershed disturbed by agricultural and residential development. The watersheds were comparable in area, direction of flow, gradients, potential natural vegetation and mean annual discharge. Using bird, mammal and geographic information system data, analyses of species richness, Jaccard's coefficient of community and response guilds were performed to determine the intensity of land-use disturbances on bird and mammal communities. Community coefficient indices performed better than species richness in reflecting wildlife community changes resulting from land-use changes. The coefficient of community index provided a broad perspective of the effects of habitat disturbance on the wildlife community but did not provide information on changes to the functional structure of the community, analyses with avian response guilds showed which groups were most sensitive to environmental disturbance and which benefited from or were not affected by the disturbance. Mammalian response guilds were not so sensitive. There are 40 references.
ISSN:0364-152X
1432-1009
DOI:10.1007/bf02589628