Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16905
Series forward Series forward
No abstract available.
Authors
J.M. Weeks, S. O’Hare, Barnett A. Rattner
Releasing captive-reared masked bobwhite for population recovery: A review Releasing captive-reared masked bobwhite for population recovery: A review
Efforts to re-establish the endangered masked bobwhite (Colinus virginianus ridgwayi) to it's former southern Arizona range have been ongoing since establishment of the Buenos Aires National Wildlife Refuge in 1986. Pre-release conditioning techniques developed prior to Refuge establishment continued to be utilized in an effort to improve post-release survival of captive-reared masked...
Authors
S.A. Gall, W.P. Kuvlesky, G. Gee
Sources of variation in survival and recovery rates of American Woodcock Sources of variation in survival and recovery rates of American Woodcock
All bandings and recoveries of American woodcock (Scolopax minor) since the last similar investigation of survival and recovery rates were examined for this study. The previous parameter estimates from the Eastern Region were augmented with 4 years of bandings. Banding effort in the Central Region was sufficient to conduct analyses for the 5 years after the previous analyses. Females...
Authors
D.G. Krementz, J.G. Bruggink
Roadside versus remote: Is the habitat sampled by the Breeding Bird Survey in Maryland representative of statewide conditions? Roadside versus remote: Is the habitat sampled by the Breeding Bird Survey in Maryland representative of statewide conditions?
The North American Breeding Bird Survey (BBS) has received criticism that the bird habitat sampled along the 24.5 mile long roadside transects may not be proportional to regional totals. If true, trends in bird populations recorded by the BBS may not be sensitive predictors of regional or continental change in songbird abundance. To test whether the approximately 60 BBS routes in...
Authors
D.D. Boone, J.R. Sauer, I. Thomas
DC birdscape: a program for monitoring neotropical migrant birds in Washington, DC DC birdscape: a program for monitoring neotropical migrant birds in Washington, DC
Urban and suburban habitats often contain a variety of Neotropical migratory birds, but are poorly sampled by programs such as the North American Breeding Bird Survey. DC Birdscape was developed to inventory and monitor birds in Washington, D.C. Birds were surveyed using a systematic sample of point counts during 1993-1995. Results indicate that species richness of Neotropical migratory...
Authors
J.R. Sauer, J. Hadidian, C. Swarth, Sam Droege, P. Handly, G. Diddan, J. Huff
Creating and managing wetland impoundments to provide habitat for aquatic birds Creating and managing wetland impoundments to provide habitat for aquatic birds
Patuxent Research Refuge, located in Central Maryland (USA), has approximately 140 ha of impoundments that were constructed for recreational and wildlife conservation purposes. Impoundments are of three major designs: dammed ravines, excavated basins, and diked ponds. Over 50 species of wetland plants were transplanted to impoundments of Patuxent from many parts of the United States...
Authors
Matthew C. Perry, P. Kangas, H.H. Obrecht
Sea ducks in the Atlantic Flyway: population status and a review of special hunting seasons Sea ducks in the Atlantic Flyway: population status and a review of special hunting seasons
No abstract available.
Authors
David F. Caithamer, M. Otto, P.I. Padding, J.R. Sauer, G.H. Haas
Field test of a new method for tracking small fishes shallow rivers using passive integrated transponder (PIT) technology Field test of a new method for tracking small fishes shallow rivers using passive integrated transponder (PIT) technology
No abstract available.
Authors
J.-M. Roussel, A. Haro, R.A. Cunjak
Tank and raceway culture Tank and raceway culture
No abstract available at this time
Authors
S.T. Summerfelt, M.B. Timmons, B.J. Watten
Toxicity of acidified chitosan for cultured rainbow trout (Oncorhynchus mykiss) Toxicity of acidified chitosan for cultured rainbow trout (Oncorhynchus mykiss)
Chitosan is a deacetylation product of chitin. It is used as a flocculent for sewage and brewery wastes, and as a chelator of heavy metals. In aquaculture, chitosan has been used as an immunostimulant for protection against bacterial diseases in fish, for controlled release of vaccines, and as a diet supplement. Chitosan has generally been considered to be nontoxic to animals, but when...
Authors
G. Bullock, V. Blazer, S. Tsukuda, S. Summerfelt