Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16783
Status of the red-cockaded woodpecker on Federal lands in the South
No abstract available.
Authors
M.R. Lennartz, P.H. Geissler, R.F. Harlow, R.C. Long, K.M. Chitwood, J.A. Jackson
Statistical problems arising from surveys of rare and endangered forest birds
No abstract available.
Authors
F.L. Ramsey, J. M. Scott, R.J. Clark
Monitoring bird population trends in North America
Se ofrece un nuevo metodo para computar las oscilaciones demograficas de las aves a lo largo de los anos. Con los datos suministrados por el proyecto 'Aves nidificantes en Norteamerica' , se indican en la Tabla 1 las pautas de cambio numerico de una serie seleccionada de aves holarticas.
Authors
C.S. Robbins, D. Bystrak, P.H. Geissler
Distribution and migration of seaside sparrows
The majority of the nine presently recognized races of the Seaside Sparrow (Ammospiza maritima) are so similar to neighboring races that individual birds outside their known breeding range cannot be subspecifically identified with certainty. The northern race, A. m. maritima, is partially migratory, with most individuals departing in autumn from Chesapeake Bay and from all the coastal marshes tha
Authors
C.S. Robbins
Directory of selected Fish and Wildlife Service aquaculture facilities and services
No abstract available.
Authors
J. P. McCraren
Circulating corticosteroid and leucocyte dynamics in channel catfish during net confinement
No abstract available at this time.
Authors
J.R. Tomasso, B.A. Simco, K. B. Davis
Fish and Wildlife Service policy on aquaculture seedstock
No abstract available.
Authors
J. P. McCraren
You asked for it! The economic loss from bullfrogs eating fish
No abstract available.
Authors
M. Martin
Physiological effects of handling and hauling stress on smallmouth bass
Mortalities associated with the handling and transporting (hauling) of fishes have long been a problem. Tolerance to these stressors varies greatly among species (Davis and Parker 1979; Tomasso et al. 1980; Wydoski and Wedenmeyer 1976). In most fishes, however, handling and hauling losses are caused by two major factors - activation of latent infections as a result of increased endocrine activity
Authors
G.J. Carmichael, Gary Wedemeyer, J. P. McCraren, J.L. Millard
Distribution and ecology of marine turtles in waters off the southeastern United States
Aerial surveys of marine waters up to 222 km from shore in the Gulf of Mexico and nearby Atlantic Ocean suggest that marine turtles are largely distributed in waters less than 100 m in depth. The loggerhead turtle (Caretta caretta) was observed nearly 50 times as often in waters off eastern and western Florida as in the western Gulf of Mexico. Loggerheads were present year round but the frequency
Authors
T. H. Fritts, W. Hoffman, M.A. McGehee