Environmental variables measured at multiple spatial scales exert uneven influence on fish assemblages of floodplain lakes
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Abstract
We examined the interaction between environmental variables measured at three different scales (i.e., landscape, lake, and in-lake) and fish assemblage descriptors across a range of over 50 floodplain lakes in the Mississippi Alluvial Valley of Mississippi and Arkansas. Our goal was to identify important local- and landscape-level determinants of fish assemblage structure. Relationships between fish assemblage structure and variables measured at broader scales (i.e., landscape-level and lake-level) were hypothesized to be stronger than relationships with variables measured at finer scales (i.e., in-lake variables). Results suggest that fish assemblage structure in floodplain lakes was influenced by variables operating on three different scales. However, and contrary to expectations, canonical correlations between in-lake environmental characteristics and fish assemblage structure were generally stronger than correlations between landscape-level and lake-level variables and fish assemblage structure, suggesting a hierarchy of influence. From a resource management perspective, our study suggests that landscape-level and lake-level variables may be manipulated for conservation or restoration purposes, and in-lake variables and fish assemblage structure may be used to monitor the success of such efforts.
Suggested Citation
Dembkowski, D., Miranda, L.E., 2014, Environmental variables measured at multiple spatial scales exert uneven influence on fish assemblages of floodplain lakes: Hydrobiologia, v. 721, no. 1, p. 129-144, https://doi.org/10.1007/s10750-013-1655-x.
ISSN: 1573-5117 (online)
ISSN: 0018-8158 (print)
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Environmental variables measured at multiple spatial scales exert uneven influence on fish assemblages of floodplain lakes |
| Series title | Hydrobiologia |
| DOI | 10.1007/s10750-013-1655-x |
| Volume | 721 |
| Issue | 1 |
| Publication Date | August 13, 2013 |
| Year Published | 2014 |
| Language | English |
| Publisher | Springer |
| Contributing office(s) | Coop Res Unit Atlanta |
| Description | 16 p. |
| First page | 129 |
| Last page | 144 |
| Country | United States |
| State | Arkansas, Mississippi |
| Other Geospatial | Mississippi Alluvial Valley |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |