Mary Freeman, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 110
Unionid habitat and assemblage composition in coastal plain tributaries of the Flint River (Georgia) Unionid habitat and assemblage composition in coastal plain tributaries of the Flint River (Georgia)
Effective conservation of mussels in streams of the lower Flint River basin, southwest Georgia, requires more rigorous understanding of mussel-habitat associations and factors shaping assemblage composition in stream reaches. We surveyed mussels and habitat conditions at 46 locations, and used regression, correlation and multivariate direct gradient analysis (Canonical Correspondence...
Authors
P. Gagnon, W. Michener, M. Freeman, J. Brim-Box
Urbanization effects on fishes and habitat quality in a southern Piedmont river basin Urbanization effects on fishes and habitat quality in a southern Piedmont river basin
We quantified the relationships among urban land cover, fishes, and habitat quality to determine how fish assemblages respond to urbanization and if a habitat index can be used as an indirect measure of urban effects on stream ecosystems. We sampled 30 wadeable streams along an urban gradient (5?37% urban land cover) in the Etowah River basin, Georgia. Fish assemblages, sampled by...
Authors
D.M. Walters, Mary C. Freeman, D.S. Leigh, B. J. Freeman, C.P. Pringle
Status and conservation of the fish fauna of the Alabama River system Status and conservation of the fish fauna of the Alabama River system
The Alabama River system, comprising the Alabama, Coosa, and Tallapoosa subsystems, forms the eastern portion of the Mobile River drainage. Physiographic diversity and geologic history have fostered development in the Alabama River system of globally significant levels of aquatic faunal diversity and endemism. At least 184 fishes are native to the system, including at least 33 endemic...
Authors
Mary C. Freeman, E.R. Irwin, N.M. Burkhead, B. J. Freeman, H.L. Bart
Status and conservation of the fish fauna of the Alabama River system Status and conservation of the fish fauna of the Alabama River system
The Alabama River system, comprising the Alabama, Coosa, and Tallapoosa subsystems, forms the eastern portion of the Mobile River drainage. Physiographic diversity and geologic history have fostered development in the Alabama River system of globally significant levels of aquatic faunal diversity and endemism. At least 184 fishes are native to the system, including at least 33 endemic...
Authors
Mary C. Freeman, E.R. Irwin, N.M. Burkhead, B. J. Freeman, H.L. Bart
Reach-scale effects of riparian forest cover on urban stream ecosystems Reach-scale effects of riparian forest cover on urban stream ecosystems
We compared habitat and biota between paired open and forested reaches within five small streams (basin area 10?20 km2) in suburban catchments (9%?49% urban land cover) in the Piedmont of Georgia, USA. Stream reaches with open canopies were narrower than forested reaches (4.1 versus 5.0 m, respectively). There were no differences in habitat diversity (variation in velocity, depth, or bed
Authors
A.H. Roy, C.L. Faust, Mary C. Freeman, J.L. Meyer
Investigating hydrologic alteration as a mechanism of fish assemblage shifts in urbanizing streams Investigating hydrologic alteration as a mechanism of fish assemblage shifts in urbanizing streams
Stream biota in urban and suburban settings are thought to be impaired by altered hydrology; however, it is unknown what aspects of the hydrograph alter fish assemblage structure and which fishes are most vulnerable to hydrologic alterations in small streams. We quantified hydrologic variables and fish assemblages in 30 small streams and their subcatchments (area 8–20 km2) in the Etowah...
Authors
A.H. Roy, Mary C. Freeman, B. J. Freeman, S.J. Wenger, W.E. Ensign, J.L. Meyer
Science and Products
Filter Total Items: 110
Unionid habitat and assemblage composition in coastal plain tributaries of the Flint River (Georgia) Unionid habitat and assemblage composition in coastal plain tributaries of the Flint River (Georgia)
Effective conservation of mussels in streams of the lower Flint River basin, southwest Georgia, requires more rigorous understanding of mussel-habitat associations and factors shaping assemblage composition in stream reaches. We surveyed mussels and habitat conditions at 46 locations, and used regression, correlation and multivariate direct gradient analysis (Canonical Correspondence...
Authors
P. Gagnon, W. Michener, M. Freeman, J. Brim-Box
Urbanization effects on fishes and habitat quality in a southern Piedmont river basin Urbanization effects on fishes and habitat quality in a southern Piedmont river basin
We quantified the relationships among urban land cover, fishes, and habitat quality to determine how fish assemblages respond to urbanization and if a habitat index can be used as an indirect measure of urban effects on stream ecosystems. We sampled 30 wadeable streams along an urban gradient (5?37% urban land cover) in the Etowah River basin, Georgia. Fish assemblages, sampled by...
Authors
D.M. Walters, Mary C. Freeman, D.S. Leigh, B. J. Freeman, C.P. Pringle
Status and conservation of the fish fauna of the Alabama River system Status and conservation of the fish fauna of the Alabama River system
The Alabama River system, comprising the Alabama, Coosa, and Tallapoosa subsystems, forms the eastern portion of the Mobile River drainage. Physiographic diversity and geologic history have fostered development in the Alabama River system of globally significant levels of aquatic faunal diversity and endemism. At least 184 fishes are native to the system, including at least 33 endemic...
Authors
Mary C. Freeman, E.R. Irwin, N.M. Burkhead, B. J. Freeman, H.L. Bart
Status and conservation of the fish fauna of the Alabama River system Status and conservation of the fish fauna of the Alabama River system
The Alabama River system, comprising the Alabama, Coosa, and Tallapoosa subsystems, forms the eastern portion of the Mobile River drainage. Physiographic diversity and geologic history have fostered development in the Alabama River system of globally significant levels of aquatic faunal diversity and endemism. At least 184 fishes are native to the system, including at least 33 endemic...
Authors
Mary C. Freeman, E.R. Irwin, N.M. Burkhead, B. J. Freeman, H.L. Bart
Reach-scale effects of riparian forest cover on urban stream ecosystems Reach-scale effects of riparian forest cover on urban stream ecosystems
We compared habitat and biota between paired open and forested reaches within five small streams (basin area 10?20 km2) in suburban catchments (9%?49% urban land cover) in the Piedmont of Georgia, USA. Stream reaches with open canopies were narrower than forested reaches (4.1 versus 5.0 m, respectively). There were no differences in habitat diversity (variation in velocity, depth, or bed
Authors
A.H. Roy, C.L. Faust, Mary C. Freeman, J.L. Meyer
Investigating hydrologic alteration as a mechanism of fish assemblage shifts in urbanizing streams Investigating hydrologic alteration as a mechanism of fish assemblage shifts in urbanizing streams
Stream biota in urban and suburban settings are thought to be impaired by altered hydrology; however, it is unknown what aspects of the hydrograph alter fish assemblage structure and which fishes are most vulnerable to hydrologic alterations in small streams. We quantified hydrologic variables and fish assemblages in 30 small streams and their subcatchments (area 8–20 km2) in the Etowah...
Authors
A.H. Roy, Mary C. Freeman, B. J. Freeman, S.J. Wenger, W.E. Ensign, J.L. Meyer