Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16922
Conservation reserve program: benefit for grassland birds in the northern plains Conservation reserve program: benefit for grassland birds in the northern plains
During the past few decades numbers of some species of upland-nesting birds in North America have declined. Duck species such as mallard (Anas platyrhynchos), northern pintail (A. acuta) and blue-winged teal (A. discors) have declined since the early 1970s and have remained low since 1985 (Caithamer et al. 1993). Some grassland-dependent nonwaterfowl species also have declined since 1966...
Authors
R. E. Reynolds, T.L. Shaffer, J.R. Sauer, B.G. Peterjohn
Estimating breeding proportions and testing hypotheses about costs of reproduction with capture-recapture data Estimating breeding proportions and testing hypotheses about costs of reproduction with capture-recapture data
The proportion of animals in a population that breeds is an important determinant of population growth rate. Usual estimates of this quantity from field sampling data assume that the probability of appearing in the capture or count statistic is the same for animals that do and do not breed. A similar assumption is required by most existing methods used to test ecologically interesting...
Authors
James D. Nichols, James E. Hines, Kenneth H. Pollock, Robert L. Hinz, William A. Link
Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates
No abstract available.
Authors
C.G. Ingersoll, G.T. Ankley, G.A. Burton, F.J. Dwyer, R.A. Hoke, T. J. Norberg-King, P. V. Winger
Famphur Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review Famphur Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
Famphur (phosphorothioic acid, O,(4((dimethylamino)sulfonyl),phenoyl)O,Odimethyl ester), also known as Warbex, is a systemic organophosphorus insecticide used almost exclusively as a veterinary chemical to control parasite in livestock. Only famphur and its oxygen analog, famoxon, were of toxicological significance; other famphur metabolites were 31 to 237 times less toxic, as Judged by...
Authors
R. Eisler
Interactions of white-tailed deer and vegetation at Saratogo National Historical Park Interactions of white-tailed deer and vegetation at Saratogo National Historical Park
No abstract available.
Authors
H.B. Underwood, K.A. Austin, W.F. Porter, R.L. Burgess, R.W. Sage
Range and habitats of the desert tortoise Range and habitats of the desert tortoise
We determined the current range of the desert tortoise (Gopherus agassizii) based on the available latest data from government agencies, the literature, and our experience. We developed the first detailed range map of this species and summarized information about habitat preferences. New records of occurrences were incorporated, and some peripheral localities of questionable authenticity...
Authors
D.J. Germano, R.B. Bury, T. C. Esque, T. H. Fritts
A social science research plan for the Mid-Atlantic Region A social science research plan for the Mid-Atlantic Region
No abstract available.
Authors
J. L. Marion
Preparing amphibians as scientific specimens Preparing amphibians as scientific specimens
No abstract available.
Authors
R.W. McDiarmid
Supplemental approaches to studying amphibian biodiversity: Group activities and field trips Supplemental approaches to studying amphibian biodiversity: Group activities and field trips
No abstract available.
Authors
R.W. McDiarmid, M.A. Donnelly
The natural history of Caroline Atoll, Southern Line Islands. Part II. Seabirds, other terrestrial animals, and conservation The natural history of Caroline Atoll, Southern Line Islands. Part II. Seabirds, other terrestrial animals, and conservation
conclusion: Lushly wooded Caroline Atoll, with the majority of its 39 islets (399 ha of land) either in near-pristine condition or having recovered remarkably from past disturbance, is one of the least spoiled atolls in the Pacific. Uninhabited, it harbors plant ecosystems and breeding seabirds (Pt. II) of national and international importance. Its marine and terrestrial ecosystems are...
Authors
C. B. Kepler, A.K. Kepler, D. H. Ellis