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Page 3084, results 77076 - 77100

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Habitat fragmentation effects on birds in grasslands: A critique of our knowledge
Douglas H. Johnson
2001, Great Plains Research (11) 211-231
Habitat fragmentation exacerbates problems due to habitat loss for grassland and wetland birds. Remaining patches of grassland and wetland may be too small, too isolated, and too influenced by edge effects to maintain viable populations of some breeding birds. Knowledge of the effects of fragmentation on bird populations is critically...
Demographic response of black bears at Cold Lake, Alberta, to the removal of adult males
Glen A. Sargeant, Robert L. Ruff
2001, Ursus (12) 59-68
Previous reports described an increase in population density following the removal of 23 adult male black bears (Ursus americanus) from a 218-km2 study area near Cold Lake, Alberta (the CLSA). This finding plays a central role in continuing debates over population regulation in bears, but has recently been criticized because...
Immune status of free-ranging green turtles with fibropapillomatosis from Hawaii
Thierry M. Work, Robert Rameyer, George H. Balazs, Carolyn Cray, Sandra P. Chang
2001, Journal of Wildlife Diseases (37) 574-581
Cell-mediated and humoral immune status of free-ranging green turtles (Chelonia mydas) in Hawaii (USA) with and without fibropapillomatosis (FP) were assessed. Tumored and non-tumored turtles from Kaneohe Bay (KB) on the island of Oahu and from FP-free areas on the west (Kona/Kohala) coast of the island of Hawaii were sampled...
Secretion of whey acidic protein and cystatin is down regulated at mid-lactation in the red kangaroo (Macropus rufus)
K.R. Nicholas, J.A. Fisher, E. Muths, J. Trott, P.A. Janssens, C. Reich, D.C. Shaw
2001, Comparative Biochemistry and Physiology, Part A: Molecular & Integrative Physiology (129) 851-858
Milk collected from the red kangaroo (Macropus rufus) between day 100 and 260 of lactation showed major changes in milk composition at around day 200 of lactation, the time at which the pouch young begins to temporarily exit the pouch and eat herbage. The carbohydrate content of milk declined abruptly...
The fish community of a small impoundment in upstate New York
C. Mead McCoy III, Charles P. Madenjian, Jean V. Adams, Willard N. Harman
2001, Journal of Freshwater Ecology (16) 389-394
Moe Pond is a dimictic impoundment with surface area of 15.6 ha, a mean depth of 1.8 m, and an unexploited fish community of only two species: brown bullhead (Ameiurus nebulosus) and golden shiner (Notemigonus crysoleucas). The age-1 and older brown bullhead population was estimated to be 4,057 individuals, based...
Crow deaths as a sentinel surveillance system for West Nile virus in the northeastern United States, 1999
M. Eidson, N. Komar, F. Sorhage, R. Nelson, T. Talbot, F. Mostashari, R. McLean, West Nile Virus Avian Mortality Surveillance Group
2001, Emerging Infectious Diseases (7) 615-620
In addition to human encephalitis and meningitis cases, the West Nile (WN) virus outbreak in the summer and fall of 1999 in New York State resulted in bird deaths in New York, New Jersey, and Connecticut. From August to December 1999, 295 dead birds were laboratory-confirmed with WN virus infection;...
Pleurochrysis pseudoroscoffensis (Prymnesiophyceae) blooms on the surface of the Salton Sea, California
Kristen M. Reifel, M. P. McCoy, M. A. Tiffany, Tonie E. Rocke, Charles Trees, S. B. Barlow, D. J. Faulkner, S. H. Hurlbert
2001, Hydrobiologia (466) 177-185
Dense populations of the coccolithophore Pleurochrysis pseudoroscoffensis were found in surface films at several locations around the Salton Sea in February–August, 1999. An unidentified coccolithophorid was also found in low densities in earlier studies of the lake (1955–1956). To our knowledge, this is the first record of this widespread marine species in...
Simulating the impact of human land use change on forest composition in the Great Plains agroecosystems with the Seedscape model
W.E. Easterling, J.R. Brandle, C.J. Hays, Q. Guo, D.S. Guertin
2001, Ecological Modelling (104) 163-176
The expansion and contraction of marginal cropland in the Great Plains often involves small forested strips of land that provide important ecological benefits. The effect of human disturbance on these forests is not well known. Because of their unique structure such forests are not well-represented by forest gap models. In...
Dual Sarcocystis neurona and Toxoplasma gondii infection in a northern sea otter from Washington state, USA
D. S. Lindsay, N. J. Thomas, A.C. Rosypal, J. P. Dubey
2001, Veterinary Parasitology (97) 319-327
Dual Sarcocystis neurona and Toxoplasma gondii infection was observed in a Northern sea otter from Washington, USA. The animal was found stranded, convulsed, and died shortly thereafter. Encephalitis caused by both S. neurona and T. gondii was demonstrated in histological sections of brain. Immunohistochemical examination of sections with S. neurona...