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Effects of Year-round Supplemental Feeding of White-tailed Deer on Plant Community Dynamics

Effects of Year-round Supplemental Feeding of White-tailed Deer on Plant Community Dynamics
Author: Beau Navarre
Publisher:
Total Pages: 30
Release: 2021
Genre:
ISBN:

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Supplemental feeding is commonly practiced to enhance available nutrition for white-tailed deer (Odocoileus virginianus). The effects of supplemental feeding on the surrounding vegetative community may be related to herbivory, trampling, and seed dispersal. I evaluated how these potential mechanisms affect vegetative communities using a matched-pair design (fed and ecologically equivalent unfed sites) during 2018-2020. In a short-term manipulative portion of the study, I sampled the vegetation prior to feeding and during two years of feeding. In a long-term retrospective study, I sampled feeders established 5-7 years previously. Feeders increased daily detection rate of deer and seed dispersing non-target wildlife, percentage of browsed plants, bare ground, and seed deposition. Plant communities diverged increasingly more from year 1 through years 5-7. Supplemental feeding directly affects local understory plant communities due to increased herbivory and trampling, while seed dispersal by non-target wildlife and increased bare ground may facilitate invasion of non-desirable plant species.


The Effects of Year-round Supplemental Feeding of White-tailed Deer on Sources of Disease

The Effects of Year-round Supplemental Feeding of White-tailed Deer on Sources of Disease
Author: Miranda Hsiang-Ning Jacobson Huang
Publisher:
Total Pages: 0
Release: 2021
Genre:
ISBN:

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Supplemental feeding of deer is a common management action. However, concentrating animals, as feeding does, is known to promote the transmission of disease. We examined how feeding alters three sources of disease: aflatoxins, gastrointestinal parasites, and ticks. To do this, we paired 79 feeder sites throughout Mississippi with ecologically-equivalent sites without feeders. Wildlife visitation increased at feeders compared to sites without feeders. For aflatoxins, we sampled during the summer and hunting season and found low prevalence and levels in feeders and bagged/bulk feed. The greater concern was environmental exposure to aflatoxins. All corn piles exposed to environmental contamination in July contained toxic levels of aflatoxins after eight days. The environmental load of gastrointestinal parasites was elevated for coccidia (4x) and strongylids (3x). Finally, feeding reduced the number of ticks at feeder sites, but did not alter the prevalence of tick-borne diseases within captured ticks compared to sites without feeders.


Advanced White-Tailed Deer Management

Advanced White-Tailed Deer Management
Author: Timothy Edward Fulbright
Publisher: Texas A&M University Press
Total Pages: 254
Release: 2023-03-31
Genre: Nature
ISBN: 1648430570

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In 2003, a cadre of researchers set out to determine what combination of supplemental or natural nutrition and white-tailed deer population density would produce the largest antlers on bucks without harming vegetation. They would come to call this combination “the sweet spot.” Over the course of their 15-year experiment, conducted through the Caesar Kleberg Wildlife Research Institute at Texas A&M University–Kingsville, Timothy E. Fulbright, Charles A. DeYoung, David G. Hewitt, Don A. Draeger, and 25 graduate students tracked the effects of deer density and enhanced versus natural nutrition on vegetation conditions. Through wet years and dry, in a semiarid environment with frequent droughts, they observed deer nutrition and food habits and analyzed population dynamics. Containing the results of this landmark, longitudinal study, in keeping with the Kleberg Institute’s mission, this volume provides science-based information for enhancing the conservation and management of Texas wildlife. Advanced White-Tailed Deer Management: The Nutrition–Population Density Sweet Spot presents this critical research for the first time as a reference for hunters, landowners, wildlife managers, and all those who work closely with white-tailed deer populations. It explains the findings of the Comanche-Faith Project and the implications of these findings for white-tailed deer ecology and management throughout the range of the species with the goal of improving management.


Supplemental Feeding

Supplemental Feeding
Author: Jim R. Perkins
Publisher:
Total Pages: 36
Release: 1991
Genre: Deer
ISBN:

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