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Filter Total Items: 3505

Individual-based models in ecology: An overview Individual-based models in ecology: An overview

No abstract available.
Authors
Donald L. DeAngelis, D. M. Fleming, L.J. Gross, W.F. Wolff

MOAB: a spatially explicit, individual-based expert system for creating animal foraging models MOAB: a spatially explicit, individual-based expert system for creating animal foraging models

We describe the development, structure, and corroboration process of a simulation model of animal behavior (MOAB). MOAB can create spatially explicit, individual-based animal foraging models. Users can create or replicate heterogeneous landscape patterns, and place resources and individual animals of a goven species on that landscape to simultaneously simulate the foraging behavior of...
Authors
J. Carter, John T. Finn

Nonindigenous species Nonindigenous species

No abstract available.
Authors
R.A. Orr, G. McClung, R. Peoples, J.D. Williams

Family Cepolidae Family Cepolidae

No abstract available.
Authors
William F. Smith-Vaniz

Recent advances in life history of Gulf of Mexico sturgeon, Acipenser oxyrinchus desotoi, in the Suwannee River, Florida, USA: A synopsis Recent advances in life history of Gulf of Mexico sturgeon, Acipenser oxyrinchus desotoi, in the Suwannee River, Florida, USA: A synopsis

Gulf sturgeon spawn on portions of three sites in the upper Suwannee River, which may appropriately be described as spawning reefs. The same areas are utilized from year to year. Habitat factors important in spawning site determination include gravel/cobble substrate, the presence of eddy fields, a neutral to slightly alkaline pH, and an empirically observed range in calcium ion content...
Authors
K. J. Sulak, James P. Clugston

[Book review] Wetland restoration: flood pulsing and disturbance dynamics, by Beth Middleton [Book review] Wetland restoration: flood pulsing and disturbance dynamics, by Beth Middleton

Review of: Wetland restoration: Flood pulsing and disturbance dynamics / Beth Middleton / John Wiley & Sons, Inc., 6705 Third Avenue, New York, NY 10158. 1999. 388 pages. ISBN 0-471-29263-X.
Authors
R.G. Boustany

Cumulative index to chemicals and to common and scientific names of species listed in Contaminant Hazard Reviews 1 through 34 Cumulative index to chemicals and to common and scientific names of species listed in Contaminant Hazard Reviews 1 through 34

The Contaminant Hazard Review (CHR) series--sponsored by the U.S. Geological Survey, Patuxent Wildlife Research Center--synthesizes ecotoxicological data for selected environmental contaminants, with emphasis on hazards to native species of flora and fauna. From 1985 through 1998, 34 reviews were published in various report series of the U.S. Department of the Interior on agricultural...

The effects of landscape position on plant species density: Evidence of past environmental effects in a coastal wetland The effects of landscape position on plant species density: Evidence of past environmental effects in a coastal wetland

Here we propose that an important cause of variation in species density may be prior environmental conditions that continue to influence current patterns. In this paper we investigated the degree to which species density varies with location within the landscape, independent of contemporaneous environmental conditions. The area studied was a coastal marsh landscape subject to periodic...
Authors
J.B. Grace, G.R. Guntenspergen
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