Excerpt from Reevaluation of Age Determinations Used in Illinois Deer Harvest Management: June 1986 Knowledge of age-specific survival rates enhances understanding of herd dynamics and the effects of harvest strategies and intensities on wildlife populations. Vital statistics necessary to properly manage the white-tailed deer resource in Illinois have been obtained since resumption of deer hunting in l957 by examination of hunter harvested deer at mandatory check stations. Ages of harvested deer are estimated by check ...
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Excerpt from Reevaluation of Age Determinations Used in Illinois Deer Harvest Management: June 1986 Knowledge of age-specific survival rates enhances understanding of herd dynamics and the effects of harvest strategies and intensities on wildlife populations. Vital statistics necessary to properly manage the white-tailed deer resource in Illinois have been obtained since resumption of deer hunting in l957 by examination of hunter harvested deer at mandatory check stations. Ages of harvested deer are estimated by check station personnel following eruption and wear criteria (severinghous l949). Accuracy and precision of these age assignments have long been questioned, both nationally and in Illinois. Roseberry and Hardin (l978) evaluated applications of tooth eruption and wear criteria under Illinois check station conditions; compared results of check station aging with those from a commercial laboratory using cementum annuli techniques; analyzed comparison geographically; determined effects of discrepancies on estimates of survival; and made recommendations regarding collection of biological information from check stations. More recently, Howe (l980) examined the tooth sectioning method to age deer in Illinois and compared age determinations to those obtained at deer check stations in west central Illinois. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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