Fish life-history traits predict abundance-occupancy patterns in artificial lakes
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Abstract
Life-history traits of a species have been postulated as a factor in abundance and occupancy patterns. Understanding how traits contribute to the ubiquity and rarity of taxa can facilitate the development of effective conservation policy by establishing a connection between species requirements and resource. The goal was to evaluate fish assemblages in artificial lakes for evidence of the abundance-occupancy patterns reported in natural environments and, if evident, to explore if observed patterns of abundance and occupancy could be attributed to species traits. Fish abundance and occupancy were estimated over 1990–2018 in 22 artificial lakes impounded within the Tennessee River basin, USA. Consistent with reports for many other taxonomic groups in natural environments, there was a positive association amidst 114 fish species between abundance and occupancy in artificial lakes (R2 = 0.78). This result indicates that the fish assemblages that develop in these anthropized environments follow the fundamental abundance-occupancy patterns uncovered in natural environments, despite assemblages having been disfigured by the dramatic rearrangement of habitats brought by impoundment. Moreover, a redundancy analysis focusing mostly on reproductive and habitat traits adequately predicted abundance-occupancy patterns of fish assemblages in artificial lakes (R2 = 0.69). Species abundance-occupancy is influenced by the interplay between life-history traits and habitat availability, even in artificial lakes, and by extension, possibly other artificial ecosystems.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Fish life-history traits predict abundance-occupancy patterns in artificial lakes |
Series title | Frontiers in Freshwater Science |
DOI | 10.3389/ffwsc.2023.1270939 |
Volume | 1 |
Year Published | 2023 |
Language | English |
Publisher | Frontiers Media |
Contributing office(s) | Coop Res Unit Atlanta |
Description | 1270939, 9 p. |
Country | United States |
State | Alabame, Georgia, Kentucky, Mississippi, North Carolina, Tennessee, Virginia |
Other Geospatial | Tennessee River basin |
Google Analytic Metrics | Metrics page |