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Full-Text Articles in Life Sciences
Aligning Conservation Goals And Management Objectives For Bonneville Cutthroat Trout (Oncorhynchus Clarki Utah) In The Logan River, Utah, Harrison E. Mohn
Aligning Conservation Goals And Management Objectives For Bonneville Cutthroat Trout (Oncorhynchus Clarki Utah) In The Logan River, Utah, Harrison E. Mohn
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Rivers are often managed without informed knowledge of how sportfish use different areas of the river to reproduce, and rarely take into account the relationship between fish movement and how they are distributed within the river when making management decisions. The population of native Bonneville cutthroat trout (Oncorhynchus clarki utah) within the Logan River is the largest documented population remaining for this imperiled species, and still maintains extremely high numbers of fish in the upper river. Currently, fishing is not allowed in the upper 20 kilometers of the Logan River watershed during spawning, based on the assumption that …
Efficacy Of Non-Lead Ammunition For Culling Elk At Theodore Roosevelt National Park, Blake E. Mccann, William Whitworth, Robert A. Newman
Efficacy Of Non-Lead Ammunition For Culling Elk At Theodore Roosevelt National Park, Blake E. Mccann, William Whitworth, Robert A. Newman
Human–Wildlife Interactions
During 2010 to 2013, park staff and public volunteers culled 983 elk (Cervus elaphus) from Theodore Roosevelt National Park (United States) utilizing non-lead rifle ammunition as part of a sanctioned herd management operation. Because there is little empirical evidence available on the performance of non-lead ammunition, staff recorded information on tools and techniques relevant to the scenarios under which elk were culled and the outcome of each engagement. We also conducted a fi ring range experiment to evaluate the precision of nonlead ammunition used in park fi rearms. Specific objectives were to identify program factors predicting efficient destruction …
Commentary Distance-Dependent Effectiveness Of Diversionary Bear Bait Sites, Stephen Stringham, Ann Bryant
Commentary Distance-Dependent Effectiveness Of Diversionary Bear Bait Sites, Stephen Stringham, Ann Bryant
Human–Wildlife Interactions
We (Stringham and Bryant 2015) previously reported on Bryant’s experiment in diversionary baiting of black bears (Ursus americanus). This occurred during the historically severe drought of 2007, in the Lake Tahoe Basin at the border of California and Nevada, USA. Effectiveness of baiting was inversely related to each community’s distance from the bait site. That has provoked the question whether conflict rates during the period of baiting would have fallen anyway even without baiting. We show here that the general trend during both pre and post-baiting years (2005–2006 and 2008–2009) was for an increase in conflicts during the …