Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16964
Prey escaping wolves, Canis lupus, despite close proximity Prey escaping wolves, Canis lupus, despite close proximity
We describe attacks by wolf (Canis lupus) packs in Minnesota on a white-tailed deer (Odocoileus virginianus) and a moose (Alces alces) in which wolves were within contact distance of the prey but in which the prey escaped.
Authors
M.E. Nelson, L.D. Mech
Speculations on colonizing success of the African clawed frog, Xenopus laevis (Pipidae), in California Speculations on colonizing success of the African clawed frog, Xenopus laevis (Pipidae), in California
The African clawed frog has been established in California for over twenty years. During that period, populations have spread to most of the drainage systems in southern California. It is suggested that a suite of contributing factors, including morphological, behavioural, and biochemical predator avoidance strategies, and reproductive and feeding (cannibalism) strategies, have aided in...
Authors
M. J. McCoid, T. H. Fritts
Phyllorhynchus decurtatus Phyllorhynchus decurtatus
No abstract available.
Authors
R.J.R. McCleary, R.W. McDiarmid
A new species of a giant Thomasomys (Mammalia, Muridae, Sigmodontinae) from the Andes of north-central Per? A new species of a giant Thomasomys (Mammalia, Muridae, Sigmodontinae) from the Andes of north-central Per?
No abstract available.
Authors
L.M. Leo, A. L. Gardner
A new Thomasomys (Mammalia: Rodentia) from the Peruvian Andes A new Thomasomys (Mammalia: Rodentia) from the Peruvian Andes
No abstract available.
Authors
A. L. Gardner, M. Romo
The tools of the trade--library enhancement in developing countries The tools of the trade--library enhancement in developing countries
No abstract available.
Authors
M.S. Foster, M.A. Jenkinson, A. Allen
Research, conservation, and collaboration: The role of visiting scientists in developing countries Research, conservation, and collaboration: The role of visiting scientists in developing countries
As awareness of environmental problems and the need to protect our natural resources or use them wisely has grown, scientists have become increasingly interested in conservation. Some individuals are involved in conservation-related activities through research or teaching, but most of us participate only as citizens concerned about the world in which we live. Often, we decline to take an...
Authors
Mercedes S. Foster
Sex and age identification of palila Sex and age identification of palila
Methods to sex and age Palila (Loxioides bailleui), an endangered Hawaiian finch restricted to subalpine woodlands on Hawai'i, were identified on the basis of measurements and plumage characteristics of 17 museum specimens and 96 known-age, live Palila. Palila undergo a single annual molt during September-December following the breeding season. Presence of a complete or partial wingbar
Authors
J.J. Jeffrey, S.G. Fancy, G.D. Lindsey, P.C. Banko, T.K. Pratt, J.D. Jacobi
Effects of habitat availability on dispersion of a stream cyprinid Effects of habitat availability on dispersion of a stream cyprinid
We analyzed temporal changes in the dispersion of the rosyside dace,Clinostomus funduloides, (family Cyprinidae) in a headwater stream, to assess the role of habitat availability in promoting fish aggregation. The dace foraged alone and in groups of up to about 25 individuals, and dispersion varied significantly among monthly censuses conducted from May through December. In two of three...
Authors
Mary C. Freeman, Gary D. Grossman
Social foraging classes in raptorial birds Social foraging classes in raptorial birds
No abstract available.
Authors
D. H. Ellis, J.C. Bednarz, D.G. Smith, S.P. Flemming
Overwinter survival of mallards fed selenium Overwinter survival of mallards fed selenium
Adult male mallards (Anas platyrhynchos) were fed diets supplemented with 0, 10, 20, 40, or 80 μg/g selenium in the form of selenomethionine. Mortality in each of these treatments was 0, 0, 25, 95, and 100%, respectively, during a 16-week exposure that started in November. After one week of treatment, body weights were significantly depressed by the 20, 40, and 80-μg/g selenium...
Authors
Gary Heinz, M. A. Fitzgerald
Biomarkers of contaminant exposure in common terns and black-crowned night herons in the Great Lakes Biomarkers of contaminant exposure in common terns and black-crowned night herons in the Great Lakes
Morphological and biochemical indexes of contaminant exposure were examined in hatching common terns (Sterna hirundo) and black-crowned night herons (Nycticorax nycticorax) from industrialized and nonindustrialized locations in the Great Lakes. In 1984, naturally incubated, pipping common tern and black-crowned night heron embryos collected from industrialized locations exhibited smaller...
Authors
D. J. Hoffman, G. J. Smith, Barnett A. Rattner