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Full-Text Articles in Life Sciences
Modeling Global Warming Scenarios In Greenback Cutthroat Trout (Oncorhynchus Clarki Stomias) Streams: Implications For Species Recovery, Scott J. Cooney, Alan P. Covich, Paul M. Lukacs, Amy L. Harig, Kurt D. Fausch
Modeling Global Warming Scenarios In Greenback Cutthroat Trout (Oncorhynchus Clarki Stomias) Streams: Implications For Species Recovery, Scott J. Cooney, Alan P. Covich, Paul M. Lukacs, Amy L. Harig, Kurt D. Fausch
Wildlife Biology Faculty Publications
Changes in global climate may exacerbate other anthropogenic stressors, accelerating the decline in distribution and abundance of rare species throughout the world. We examined the potential effects of a warming climate on the greenback cutthroat trout (Oncorhynchus clarki stomias), a resident salmonid that inhabits headwater streams of the central Rocky Mountains. Greenbacks are outcompeted at lower elevations by nonnative species of trout and currently are restricted to upper-elevation habitats where barriers to upstream migration by nonnatives are or have been established. We used likelihood-based techniques and information theoretics to select models predicting stream temperature changes for 10 streams where greenback …
Snail Kite Nest Success And Water Levels : A Reply To Beissinger And Snyder, Victoria J. Dreitz, Robert E. Bennetts, Brian Toland, Wiley M. Kitchens, Michael W. Collopy
Snail Kite Nest Success And Water Levels : A Reply To Beissinger And Snyder, Victoria J. Dreitz, Robert E. Bennetts, Brian Toland, Wiley M. Kitchens, Michael W. Collopy
Wildlife Biology Faculty Publications
Beissinger and Snyder present a commentary on our recent paper on spatial and temporal variability in nest success of Snail Kites (Rostrhamus sociabilis) in Florida (Dreitz et al. 2001). Beissinger and Snyder reanalyze a subset of data presented in our original paper to show that water levels have a significant influence on nest success. To make their argument, the authors conduct separate analyses for 5 of the original 11 wetlands; including only those having the most data. We agree with Beissinger and Snyder that water levels can affect nest success in some areas or years, as we stated …
Spatial And Temporal Variability In Nest Success Of Snail Kites In Florida : A Meta-Analysis, Victoria J. Dreitz, Robert E. Bennetts, Brian Toland, Wiley M. Kitchens, Michael W. Collopy
Spatial And Temporal Variability In Nest Success Of Snail Kites In Florida : A Meta-Analysis, Victoria J. Dreitz, Robert E. Bennetts, Brian Toland, Wiley M. Kitchens, Michael W. Collopy
Wildlife Biology Faculty Publications
Nesting success of Snail Kites (Rostrhamus sociabilis) in Florida is highly variable among years and locations, and hydrology is the most frequently reported explanatory factor. We conducted a meta-analysis to evaluate the extent of spatial and temporal variability in nesting success, and explicitly tested for the effects of annual minimum water levels. Data were obtained from six independent studies spanning 22 years and 11 wetlands. Our results indicated there was substantial spatial and temporal variability in nest success and that annual minimum water level, either as a categorical or continuous response, was not a significant source of this …