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184031 results.

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Page 3230, results 80726 - 80750

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Ruddy ducks
A.K. Miles
2000, Goals Project. 2000
No abstract available at this time...
Mapping and converting essential Federal Geographic Data Committee (FGDC) metadata into MARC21 and Dublin Core: towards an alternative to the FGDC Clearinghouse
A. Chandler, D. Foley, A.M. Hafez
2000, D-Lib (6) 1-1
The purpose of this article is to raise and address a number of issues related to the conversion of Federal Geographic Data Committee metadata into MARC21 and Dublin Core. We present an analysis of 466 FGDC metadata records housed in the National Biological Information Infrastructure (NBII) node of the FGDC...
Tracking the spring migration of a bar-headed goose (Anser indicus) across the Himalaya with satellite telemetry
Sàlim Javed, John Y. Takekawa, David C. Douglas, Asad R. Rahmani, Yutaka Kanai, Meenakshi Nagendran, Binod C. Choudhury, Shruti Sharma
2000, Global Environmental Research (4) 195-205
Soil-food-chain-pesticide wildlife relationships were investigated to learn the concentration of pesticide residues present in soils, macro-invertebrates, vertebrates, and seeds as a result of annual applications of aldrin at recommended rates for pest control. Two central Missouri cornfields treated witb aldrin at 1 lb/acre, for 16 and 15 of the...
PINSAT 2000 Progress Update Report
M. R. Miller, John Y. Takekawa, D.L. Orthmeyer, J. P. Fleskes, Michael L. Casazza, W.M. Perry
2000, Report
No abstract available at this time...
Managers' summary - Ecological studies of the Pryor Mountain Wild Horse Range, 1992-1997
F. J. Singer, K.A. Schoenecker
2000, Book
Ecological Studies of the Pryor Mountain Wild Horse Range, 1992-1997 provides a synthesis of key findings of landscape-scale, interdisciplinary studies of the effects of wild horses and native ungulates on a rugged, mountain ecosystem. This is perhaps the most comprehensive study of a wild horse herd conducted. This...
Effects of introduced crayfish on selected native fishes of Arizona
J. Carpenter
2000, Thesis
The virile crayfish (Orconectes virilis), an aggressive polytrophic species, has been introduced into many Arizona streams. I investigated competition and predation between this crayfish and several native Arizona fishes. I conducted field experiments to assess competition for food between crayfish and fish, and laboratory experiments to examine competition for shelter...
Obsidian hydration dating of Quaternary events
K. L. Pierce, Irving Friedman
J.S. Noller, J.M. Sowers, W. R. Lettis, editor(s)
2000, Book chapter, Quaternary Geochronology, Methods and Applications: AGU Reference Shelf 4
Abstract has not been submitted...
The role of vegetation in cowbird parasitism of yellow warblers
W.H. Howe, F.L. Knopf
J.N.M. Smith, T.L. Cook, S.I. Rothstein, S.K. Robinson, S.G. Sealy, editor(s)
2000, Book chapter, Ecology and management of cowbirds and their hosts: Studies in the conservation of North American passerine birds
No abstract available....
Channel incision and patterns of cottonwood stress and mortality along the Mojave River, California
M. L. Scott, G. C. Lines, G.T. Auble
2000, Journal of Arid Environments (44) 399-414
In 1995, mapping and classification of riparian vegetation along the Mojave River in southern California revealed an 8-km reach in which riparian cottonwoods (Populus fremontii Wats.) were stressed or dying. We tested a set of predictions based on the inference that cottonwood decline was an indirect result of lowered water-table...
Environmental contaminants
T. W. Custer
J.A. Kushlna, H. Hafner, editor(s)
2000, Book chapter, Heron Conservation
Throughout the world, individuals and populations of herons are affected by environmental contaminants, leading to direct mortality, decreased reproductive success, or degradation of feeding habitat. Contaminants suspected or known to affect herons include organochlorine compounds, organophosphorus insecticides, trace elements, and petroleum (Parnell et al. 1988).General reviews on the effects of...