Habitat as a Limiting Factor in Stage-structured Populations
Author: Benjamin Scott Halpern
Publisher:
Published: 2003
Total Pages: 384
ISBN-13:
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Author: Benjamin Scott Halpern
Publisher:
Published: 2003
Total Pages: 384
ISBN-13:
DOWNLOAD EBOOKAuthor: Louis W. Botsford
Publisher: Oxford University Press, USA
Published: 2019-10
Total Pages: 353
ISBN-13: 0198758367
DOWNLOAD EBOOKThis book outlines concepts such as population variability, population stability, population viability and persistance, and harvest yield. Also addressed are specific applications to conservation such as managing species at risk, fishery management, and the spatial manageement of marine resources.--Adapted from back cover.
Author: National Research Council
Publisher: National Academies Press
Published: 2013-10-04
Total Pages: 399
ISBN-13: 0309264944
DOWNLOAD EBOOKUsing Science to Improve the BLM Wild Horse and Burro Program: A Way Forward reviews the science that underpins the Bureau of Land Management's oversight of free-ranging horses and burros on federal public lands in the western United States, concluding that constructive changes could be implemented. The Wild Horse and Burro Program has not used scientifically rigorous methods to estimate the population sizes of horses and burros, to model the effects of management actions on the animals, or to assess the availability and use of forage on rangelands. Evidence suggests that horse populations are growing by 15 to 20 percent each year, a level that is unsustainable for maintaining healthy horse populations as well as healthy ecosystems. Promising fertility-control methods are available to help limit this population growth, however. In addition, science-based methods exist for improving population estimates, predicting the effects of management practices in order to maintain genetically diverse, healthy populations, and estimating the productivity of rangelands. Greater transparency in how science-based methods are used to inform management decisions may help increase public confidence in the Wild Horse and Burro Program.
Author: Mark A. Rumble
Publisher:
Published: 1995
Total Pages: 44
ISBN-13:
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Publisher:
Published: 2005
Total Pages: 320
ISBN-13:
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Publisher:
Published: 1992
Total Pages: 864
ISBN-13:
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Publisher:
Published: 1982
Total Pages: 772
ISBN-13:
DOWNLOAD EBOOKAuthor: Deborah M. Finch
Publisher: DIANE Publishing
Published: 1995
Total Pages: 197
ISBN-13: 0788130137
DOWNLOAD EBOOKSynthesizes existing information on the ecology, diversity, human uses & research needs of the Middle Rio Grande Basin of New Mexico. Begins with a review of the environmental history & human cultures of the basin, followed by an analysis of the influences & problems of climate & water. Also focuses on ecological processes, environmental changes & management problems. Each chapter identifies studies that can supply information to mitigate environmental problems, rehabilitate ecosystems, & sustain them in light of human values & needs.