Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
Crested caracara
The crested caracara's range extends from the southern United States south to Tierra del Fuego. Although the caracara has been recorded in all of the southwestern states, it occurs regularly only in southern Arizona and central, southern and coastal Texas. Its distribution is closely linked to the availability of carrion. Throughout its range, thecaracara is associated with open habitats such as d
Authors
D. H. Ellis, D.G. Smith, W.H. Whaley, Catherine H. Ellis
Movements of translocated wolves in Minnesota
No abstract available.
Authors
S. H. Fritts, W. J. Paul, L. D. Mech
Sex specificity of behavioral dominance and fasting endurance in wintering canvasbacks: Experimental results
Hand-reared canvasbacks (Aythya valisineria) of varying sex ratios were maintained in pens during winter 1980-81 (3M-3F, 6M-0F, 0M-6F) and winter 1981-82 (4M-2F, 2M-4F) and fed two diets (control and stress). They were observed during feeding trials to determine intrasexual and intersexual aggressive activity. There was little evidence that either diet or sex ratio affected the total number of agg
Authors
M. C. Perry, J. D. Nichols, M.J. Conroy, H.H. Obrecht, B.K. Williams
Potential effects of changing water conditions on mallards wintering in the Mississippi alluvial valley
No abstract available.
Authors
K. J. Reinecke, R.C. Barkley, C.K. Baxter
Workshop summary: Nutrition, condition, and ecophysiology
No abstract available.
Authors
K. J. Reinecke, C.D. Ankney, G.L. Krapu, R.B. Owen, H. H. Prince, D.G. Raveling
Distribution and numbers of American black ducks along the Maine coast during the severe winter of 1980-1981
No abstract available.
Authors
J. R. Longcore, J.P. Gibbs
Workshop summary: Species and population status and distribution
No abstract available.
Authors
J. D. Nichols, D.V. Derksen, R. L. Jarvis, John T. Ratti
Distribution, productivity, and status of the peregrine falcon in Arizona
No abstract available.
Authors
D. H. Ellis
Some considerations in modeling the mallard life cycle
We outline a population model proposed to accommodate the full life cycle of the mallard (Anas platyrhynchos}. Events during the breeding season are better understood than events at other times of the year, but recent findings suggest the importance of phenomena away from the breeding grounds. Several processes are discussed relative to mallard population dynamics. Compensatory mortality is a poor
Authors
D. H. Johnson, J. D. Nichols, M.J. Conroy, L.M. Cowardin
Alternative sampling strategies for a survey of submerged aquatic vegetation in the Chesapeake Bay
No abstract available.
Authors
P.H. Geissler
The influence of local weather on autumn migration of peregrine falcons of Assateague Island
No abstract available.
Authors
K. Titus, F.P. Ward, W.S. Seegar, M.A. Yates, M.R. Fuller
Autumn migrations of peregrine falcons at Assateague Island, Maryland/Virginia, 1970-1984
No abstract available.
Authors
F.P. Ward, K. Titus, W.S. Seegar, M.A. Yates, M.R. Fuller