Mary Freeman, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 110
Fish-assemblage variation between geologically defined regions and across a longitudinal gradient in the Monkey River Basin, Belize Fish-assemblage variation between geologically defined regions and across a longitudinal gradient in the Monkey River Basin, Belize
Linkages between geology and fish assemblages have been inferred in many regions throughout the world, but no studies have yet investigated whether fish assemblages differ across geologies in Mesoamerica. The goals of our study were to: 1) compare physicochemical conditions and fish-assemblage structure across 2 geologic types in headwaters of the Monkey River Basin, Belize, and 2)...
Authors
P.C. Esselman, Mary C. Freeman, C. M. Pringle
Importance of riparian forests in urban catchments contingent on sediment and hydrologic regimes Importance of riparian forests in urban catchments contingent on sediment and hydrologic regimes
Forested riparian corridors are thought to minimize impacts of landscape disturbance on stream ecosystems; yet, the effectiveness of streamside forests in mitigating disturbance in urbanizing catchments is unknown. We expected that riparian forests would provide minimal benefits for fish assemblages in streams that are highly impaired by sediment or hydrologic alteration. We tested this...
Authors
A.H. Roy, Mary C. Freeman, B. J. Freeman, S.J. Wenger, J.L. Meyer, W.E. Ensign
The vertebrate fauna of Ichauway, Baker County, GA The vertebrate fauna of Ichauway, Baker County, GA
Less than 4% of the once extensive Pinus palustris (longleaf pine) ecosystem remains today. Although longleaf pine habitats are recognized for their high species diversity, few published accounts document the vertebrate faunas of remaining tracts. Here we report on the vertebrate species richness of lchauway, an 11,300-ha property in Baker County, GA. The property includes ca. 7300 ha of
Authors
L. L. Smith, D.A. Steen, J.M. Stober, Mary C. Freeman, S.W. Golladay, L.M. Conner, J. Cochrane
Analysis of spawning behavior, habitat, and season of the federally threatened Etheostoma scotti, Cherokee darter (Osteichthyes: Percidae) Analysis of spawning behavior, habitat, and season of the federally threatened Etheostoma scotti, Cherokee darter (Osteichthyes: Percidae)
Etheostoma scotti (Cherokee darter) is a member of the subgenus Ulocentra and a federally threatened endemic to the Etowah River system, GA. Field observations of spawning behavior of the Cherokee darter were made at five stream sites to identify spawning season and habitat over two field seasons. Cherokee darters primarily spawn in pool habitats between mid-March and early June, at...
Authors
C.M. Storey, B.A. Porter, Mary C. Freeman, B. J. Freeman
Ecological consequences of hydropower development in Central America: Impacts of small dams and water diversion on neotropical stream fish assemblages Ecological consequences of hydropower development in Central America: Impacts of small dams and water diversion on neotropical stream fish assemblages
Small dams for hydropower have caused widespread alteration of Central American rivers, yet much of recent development has gone undocumented by scientists and conservationists. We examined the ecological effects of a small hydropower plant (Dona Julia Hydroelectric Center) on two low-order streams (the Puerto Viejo River and Quebradon stream) draining a mountainous area of Costa Rica...
Authors
Elizabeth P. Anderson, Mary C. Freeman, C. M. Pringle
Fish assemblage responses to water withdrawals and water supply reservoirs in Piedmont streams Fish assemblage responses to water withdrawals and water supply reservoirs in Piedmont streams
Understanding effects of flow alteration on stream biota is essential to developing ecologically sustainable water supply strategies. We evaluated effects of altering flows via surface water withdrawals and instream reservoirs on stream fish assemblages, and compared effects with other hypothesized drivers of species richness and assemblage composition. We sampled fishes during three...
Authors
Mary C. Freeman, P.A. Marcinek
Science and Products
Filter Total Items: 110
Fish-assemblage variation between geologically defined regions and across a longitudinal gradient in the Monkey River Basin, Belize Fish-assemblage variation between geologically defined regions and across a longitudinal gradient in the Monkey River Basin, Belize
Linkages between geology and fish assemblages have been inferred in many regions throughout the world, but no studies have yet investigated whether fish assemblages differ across geologies in Mesoamerica. The goals of our study were to: 1) compare physicochemical conditions and fish-assemblage structure across 2 geologic types in headwaters of the Monkey River Basin, Belize, and 2)...
Authors
P.C. Esselman, Mary C. Freeman, C. M. Pringle
Importance of riparian forests in urban catchments contingent on sediment and hydrologic regimes Importance of riparian forests in urban catchments contingent on sediment and hydrologic regimes
Forested riparian corridors are thought to minimize impacts of landscape disturbance on stream ecosystems; yet, the effectiveness of streamside forests in mitigating disturbance in urbanizing catchments is unknown. We expected that riparian forests would provide minimal benefits for fish assemblages in streams that are highly impaired by sediment or hydrologic alteration. We tested this...
Authors
A.H. Roy, Mary C. Freeman, B. J. Freeman, S.J. Wenger, J.L. Meyer, W.E. Ensign
The vertebrate fauna of Ichauway, Baker County, GA The vertebrate fauna of Ichauway, Baker County, GA
Less than 4% of the once extensive Pinus palustris (longleaf pine) ecosystem remains today. Although longleaf pine habitats are recognized for their high species diversity, few published accounts document the vertebrate faunas of remaining tracts. Here we report on the vertebrate species richness of lchauway, an 11,300-ha property in Baker County, GA. The property includes ca. 7300 ha of
Authors
L. L. Smith, D.A. Steen, J.M. Stober, Mary C. Freeman, S.W. Golladay, L.M. Conner, J. Cochrane
Analysis of spawning behavior, habitat, and season of the federally threatened Etheostoma scotti, Cherokee darter (Osteichthyes: Percidae) Analysis of spawning behavior, habitat, and season of the federally threatened Etheostoma scotti, Cherokee darter (Osteichthyes: Percidae)
Etheostoma scotti (Cherokee darter) is a member of the subgenus Ulocentra and a federally threatened endemic to the Etowah River system, GA. Field observations of spawning behavior of the Cherokee darter were made at five stream sites to identify spawning season and habitat over two field seasons. Cherokee darters primarily spawn in pool habitats between mid-March and early June, at...
Authors
C.M. Storey, B.A. Porter, Mary C. Freeman, B. J. Freeman
Ecological consequences of hydropower development in Central America: Impacts of small dams and water diversion on neotropical stream fish assemblages Ecological consequences of hydropower development in Central America: Impacts of small dams and water diversion on neotropical stream fish assemblages
Small dams for hydropower have caused widespread alteration of Central American rivers, yet much of recent development has gone undocumented by scientists and conservationists. We examined the ecological effects of a small hydropower plant (Dona Julia Hydroelectric Center) on two low-order streams (the Puerto Viejo River and Quebradon stream) draining a mountainous area of Costa Rica...
Authors
Elizabeth P. Anderson, Mary C. Freeman, C. M. Pringle
Fish assemblage responses to water withdrawals and water supply reservoirs in Piedmont streams Fish assemblage responses to water withdrawals and water supply reservoirs in Piedmont streams
Understanding effects of flow alteration on stream biota is essential to developing ecologically sustainable water supply strategies. We evaluated effects of altering flows via surface water withdrawals and instream reservoirs on stream fish assemblages, and compared effects with other hypothesized drivers of species richness and assemblage composition. We sampled fishes during three...
Authors
Mary C. Freeman, P.A. Marcinek