Using Science to Improve the BLM Wild Horse and Burro Program A Way Forward (2013) / Chapter Skim
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Appendix B: Previous National Research Council Reports on Free-Ranging Horses and Burros
Appendix B: Previous National Research Council Reports on Free-Ranging Horses and Burros
Pages 277-284
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From page 277... ...
The first phase reviewed the existing knowledge of free-ranging horses and burros and from that developed 18 research projects that it recommended that the Bureau of Land Management (BLM) pursue to fill gaps in knowledge that would contribute to the sound management of free-ranging horses and burros.
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From page 278... ...
COMMONALITY IN NATIONAL RESEARCH COUNCIL STUDIES ON FREE-RANGING HORSES AND BURROS Although the Committee to Review the Bureau of Land Management Wild Horse and Burro Management Program was not tasked with designing a research program or reviewing specific research projects, its statement of task echoed many of the issues addressed in the earlier reports. Like the committee that prepared the present report, the Committee on Wild and Free-Roaming Horses and Burros examined issues related to genetic diversity, fertility control, population estimates, population growth rates, forage use, and societal opinions.
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From page 279... ...
Therefore, the report recommended that studies be carried out to determine the genetic variation between populations of free-ranging horses and burros and the genetic similarity between free-ranging equids and domestic breeds. The research was not carried out in Phase II of the study by the Committee on Wild and Free-Roaming Horses and Burros, but it was one of the research projects overseen by the Committee on Wild Horse and Burro Research.
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From page 280... ...
The committee concluded that growth rates probably vary because of a number of conditions: annual variations in forage conditions due to year-to-year weather changes or longer-term changes in climate, variations in forage conditions related to equid population densities, and variations in forage conditions related to the population density of other herbivores. The committee posited that, because of those factors, population growth rates vary spatially and temporally.
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From page 281... ...
However, that committee did review the research conducted on equine contraception up to that time and recommended research that could advance the use of contraception in free-ranging horses and burros. Research on a population of burros that included vasectomized dominant male burros had reported that female burros were later bred by younger males.
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From page 282... ...
The committee recommended three research projects to address the information gaps on the interaction of free-ranging equids and range ecosystems. The research conducted in Phase II of the study was an insufficient response to the committee's call for information about the vegetation, soil, and water potential of herd areas: the number of herbivores with varied feeding types that could be carried on an area without diminishing the area's potential; the kinds and amounts of forage required by the herbivores; and the effects of herbivores on vegetation.
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From page 283... ...
The committee also noted that BLM should have information on the attitude of the public toward the free-ranging equids, including the public's awareness of the issue and its nonmarket valuation of the animals. The 1980 report therefore recommended six research projects on socioeconomic and political issues that included surveying interested parties and the general public for their opinions on free-ranging horses and burros.
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