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- W320432872 abstract "The demographic characteristics of 18 feral horse (Equus cuballus) populations in five states are discussed. As estimated primarily from the results of composition counts, foals comprised an average 19 percent (post-parturition) of the populations analyzed. Various procedures were employed in an attempt to estimate survival rates within the populations. Provisional estimates of first-year survival rates span the general range of 50-70 percent, while those for adults may approximate 80-85 percent. Annual rates of increase, predicted from simulation runs with the estimated population parameters, were considerably lower than those “observed” from aerial inventories in successive years. Possible explanations for these discrepancies and management implications are discussed. Feral horses (Equus caballus) represent one of the most complicated problems of contemporary wildlife management. Under the protection afforded them by the provisions of the Wild Horse and Burro Act (PL 92-195), enacted in 197 1, populations of these animals have increased rapidly in recent years in many areas of the western United States. The acutal rates of increase remain the subject of considerable controversy. Aside from the stringent protective provisions of PL 92-195, the rational management of feral equid populations is hampered by a paucity of reliable information on the ecology (particularly demographic characteristics) of rree-ranging horses and burros (E. asinus) on the one hand, and on the other, the constraints imposed by the demands of special interest groups and the emotional issues involved. The following report summarizes provisional information on the population ecology of free-ranging horses in several locations. It should be emphasized that the estimates of the demographic parameters given herein are tentative at best and that a primary objective of this paper is to point out the shortcomings of the existing data as well as areas requiring additional research. Perhaps this may serve as th? impetus for the future collection of more reliable data." @default.
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- W320432872 date "1980-09-01" @default.
- W320432872 modified "2023-09-25" @default.
- W320432872 title "Feral Horse Demography: A Preliminary Report" @default.
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- W320432872 doi "https://doi.org/10.2307/3897882" @default.
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