Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
Kirtland's warblers on their wintering grounds in the Bahama archipelago--a preliminary report
No abstract available.
Authors
P.W. Sykes
Population trends of North American shorebirds based on the International Shorebird Survey
Shorebirds Charadrii are prime candidates for population decline because of their dependence on wetlands that are being lost at a rapid pace. Thirty-six of the 49 species of shorebirds that breed in North America spend most of the year in Latin America. Because populations of most species breed and winter at remote sites, it may be most feasible to monitor their numbers at migration stopovers. In
Authors
M.A. Howe, P.H. Geissler, B. A. Harrington
Impaired reproduction of mallards fed an organic form of selenium
We fed mallards (Anas platyrhynchos) diets supplemented with 0-, 1-, 2-, 4-, 8-, or 16-ppm selenium in the form of selenomethionine. We fed another group of mallards a diet containing 16-ppm selenium as selenocystine. Females fed the control diet produced a mean of 8.1 ducklings that survived to 6 days of age, which was significantly greater than the 4.6 young produced by females fed 8-ppm seleniu
Authors
G. H. Heinz, D. J. Hoffman, L. G. Gold
Mallard survival from local to immature stage in southwestern Saskatchewan
We used 3,670 reciveries from 32,647 bandings of mallards in southwestern Saskatchewan during 1956-59 to estimate the probability of surviving from the local, flightless stage to the flighted, immature stage. The probability of surviving from the local to the immature stage was 0.84 +/- 0.05 (SE) for males and females. The geographic distribution of direct recoveries was similar for the birds ba
Authors
J.B. Hestbeck, A. Dzubin, J.B. Gollop, J. D. Nichols
Impacts of brown tree snake on the native birds of Guam
No abstract available.
Authors
T. H. Fritts, G.H. Rodda
Trapping Boiga irregularis on Guam using bird odors
No abstract available.
Authors
T. H. Fritts, N. J. Scott, B.E. Smith
Two new species of South American Centrorlenella (Anura: Centrolenidae) related to C. Mariae
Two new Centrolenella are described, C. azulae from the Cordillera Azul of Peru, and C. puyoensis from the Amazonian slopes of the Ecuadorian Andes. Centrolenella azulae is distinguished by its moderately large size, the presence of vomerine teeth, a snout truncate in dorsal view and slightly protruding in profile, a color pattern in preservative of very diffuse lavender with small colorless spots
Authors
G. Flores, R.W. McDiarmid
Two new mammals from southern Venezuela and comments on the affinities of the highland fauna of Cerro de la Neblina
No abstract available.
Authors
A.L. Gardner
A new generic name for Tate's (1933) Microtarsus group of South American mouse opossums (Marsupialia: Didelphidae)
No abstract available.
Authors
A.L. Gardner, G.K. Creighton
[Book review] Speciation and geographic variation in black-tailed gnatcatchers, by J. Atwood
No abstract available.
Authors
R.C. Banks
Observations of a nest of red-crowned ant-tanagers in Paraguay
The nest and nesting behaviorof a pair of Red-crowned Ant-Tanagers ( Habia rubica rubica) from Paraguay is described. Results are compared with those from studies of other subspecies. Because the species occurs in temperate, subtropical, and tropical habitats from Mexico south to Paraguay, northern Argentina, and southeastern Brazil, we expected details of breeding to differ in different parts
Authors
M.S. Foster, N.E. Lopez H., M.E. Escobar