Environmental variables measured at multiple spatial scales exert uneven influence on fish assemblages of floodplain lakes
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
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.
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 |
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 |
Google Analytic Metrics | Metrics page |