Relation of urbanization to stream fish assemblages and species traits in nine metropolitan areas of the United States

被引：24

作者：

Brown L.R. ^{[1
]}

Gregory M.B. ^{[2
]}

May J.T. ^{[1
]}

机构：

[1] U.S. Geological Survey, Sacramento, CA 95819-6129, Placer Hall

[2] U.S. Geological Survey, Atlanta, GA 30360-2824

来源：

Urban Ecosystems | 2009年 / 12卷 / 4期

关键词：

Fish assemblages; Fish traits; Land use; Urban streams; Urbanization;

D O I：

10.1007/s11252-009-0082-2

中图分类号：

学科分类号：

摘要：

We examined associations of fish assemblages and fish traits with urbanization and selected environmental variables in nine major United States metropolitan areas. The strongest relations between fishes and urbanization occurred in the metropolitan areas of Atlanta, Georgia; Birmingham, Alabama; Boston, Massachusetts; and Portland, Oregon. In these areas, environmental variables with strong associations (rs ≥ 0.70) with fish assemblages and fish traits tended to have strong associations with urbanization. Relations of urbanization with fish assemblages and fish traits were weaker in Denver, Colorado; Dallas-Fort Worth, Texas; Milwaukee-Green Bay, Wisconsin; and Raleigh, North Carolina. Environmental variables associated with fishes varied among the metropolitan areas. The metropolitan areas with poor relations may have had a limited range of possible response because of previous landscape disturbances. Given the complexities of urban landscapes in different metropolitan areas, our results indicate that caution is warranted when generalizing about biological responses to urbanization. © Springer Science + Business Media, LLC 2009.

引用

页码：391 / 416

页数：25

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