Download or read book Density Physical Condition and Fecundity of White tailed Deer Odocoileus Virginianus Populations in Cedar Rapids and Iowa City Iowa written by Sharon Lynn Goetz and published by . This book was released on 2000 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of White tailed Deer Density on Physical Condition and Forest Vegetation in Cuyahoga Valley National Park written by Jacob J. Trowbridge and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given that overabundant white-tailed deer (Odocoileus virginianus) can exert lasting negative effects in forested ecosystems, management of deer has been a foremost conservation concern in eastern North America since the last century. Although knowledge of density impacts on body mass, pregnancy rates, and forest regeneration are vital for deer management, relatively few studies have assessed these relationships in the same study area for a >5-year period. I took advantage of a managed culling program to investigate the impacts of deer density on body mass, pregnancy rates, and native forest understory and trillium (Trillium grandiflorium) regeneration at Cuyahoga Valley National Park (CUVA), Ohio, during 2016-2022. Deer densities were estimated using distance sampling in November and deer were culled by sharpshooters the following January-March. Each deer culled was aged, sexed, weighed, and inspected for fetuses (recorded as present or absent). Deer densities ranged from 8.6-18.0 deer/km2 and deer removed each study year varied between 205 and 450. Concurrently, the 1-6 tallest native seedlings per genera per subplot were measured in July-August in 25 fenced and unfenced paired plots and in long-term ecological monitoring (LTEM) plots. Browse was estimated in unfenced paired plots in alternating years. Trillium stem heights in both unfenced controls/fenced exclosures and browse in unfenced control plots were collected in April-June each year. Using a linear mixed model (LME), I analyzed change in body mass of culled deer and found a significant negative relationship with current deer density (P
Download or read book The Physical and Reproductive Dynamics of the Iowa City White tailed Deer Herd After Drastic Reductions in Population by Sharpshoot and Density Dependent Trends in Deer vehicle Collisions written by Jeffrey John Kolodzinski and published by . This book was released on 2005 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced White Tailed Deer Management written by Timothy Edward Fulbright and published by Texas A&M University Press. This book was released on 2023-03-31 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Influences of Habitat Composition Plant Phenology and Population Density on Autumn Indices of Body Condition in a Northern White tailed Deer Population written by Anouk Simard and published by . This book was released on 2014 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Body condition has a strong influence on reproduction and survival. Consequently, understanding spatiotemporal variation in body condition may help identify processes that determine life history, and thus demography. The effect of environmental variables on individuals' body condition, although widely documented, is generally achieved by investigating habitat, plant phenology, or density separately, such that cumulative or interactive effects can rarely be considered. We investigated how spatial and annual variation in habitat composition, deer density, and vegetation productivity influenced white-tailed deer (Odocoileus virginianus) body condition during the breeding period. We detailed changes in body condition using several indices, including body mass, peroneus muscle mass, rump fat, kidney fat index, and antler size in >4,000 male and female deer of different ages harvested during September-December, 2002-2006 on Anticosti Island, Québec, Canada. Overall, females and yearlings harvested in fir forests were in poorer condition than those harvested in peatlands or spruce forests, whereas body condition of adult males was greater when open habitats were highly available. High deer density reduced autumn gains in fat, muscle mass, and body mass in males and yearlings, and in fat for females. Surprisingly, density positively affected the size of male antlers. High density at birth favored fat accumulation in adult females, suggesting strong selective pressure that removed low-quality individuals in early age at high deer density. Low Normalized Difference Vegetation Index (NDVI) in spring was associated with delayed but rapid spring green-up, and favored higher body condition in autumn. Reproduction affected most parameters of body condition; lactating females had less mass, fat, and muscle than non-lactating females, whereas mass and fat of males >4 years old steeply declined during the rut. Body mass and fat reserves showed a stronger response to density, habitat, NDVI, and reproduction than muscle mass. Body mass was a good integrating measure of fat and muscle mass, although allocation between muscle growth and energy storage was confounded. Our study highlighted the influence of environmental conditions on individual fat reserves, muscle mass, and body mass in autumn, with potential effects on reproduction and winter survival. Appropriate monitoring of body-condition indices in the fall can track the effect of environmental variables and management practices on animal populations.
Download or read book Recent Historical and Projected Regional Trends of White tailed Deer and Wild Turkey in the Southern United States written by and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book White tailed Deer in the Midwest written by and published by . This book was released on 1970 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of the Physical Conditions and Birth Rates of White tailed Deer Odocoileus Virginianus Before and After a Sharpshoot written by Sara Lynn Salata and published by . This book was released on 2002 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior and Ecology of a White tailed Deer Population Odocoileus Virginianus at High Density written by Michael Stüwe and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproductive Biology of White tailed Deer on Cumberland Island Georgia written by Susan King Miller and published by . This book was released on 1989 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antietam National Battlefield White tailed Deer Odocoileus Virginianus Sex Ratio and Population Density Determinations for Management Recommendations written by Erin Landsman and published by . This book was released on 2011 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Revised Columbian White tailed Deer Recovery Plan written by Columbian White-Tailed Deer Recovery Team and published by . This book was released on 1983 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimating the Ecological Impact and Carrying Capacity of White tailed Deer Odocoileus Virginianus at Camp James A Garfield Joint Military Training Center written by Curtis D. Burns (Jr.) and published by . This book was released on 2021 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthropogenic habitat modification, predator extirpation, and reduced hunting pressure have pushed white-tailed deer (WTD; Odocoileus virginianus) populations to unprecedentedly high densities throughout much of eastern North America. Importantly, their selective foraging can depress the abundance of preferred native plant species, increase that of less nutritious ones, and facilitate exotic species invasion. However, few have researched areas where WTD densities have been maintained, for decades, at low levels. Moreover, scant data exists on canopy species regeneration across different-aged canopy gaps, in different habitats, and in areas of historically high and low WTD densities. Here, we ask: 1) across a range of canopy gap ages, does WTD density affect the number and relative cover of native and non-native plant species, in wet and dry habitats?, and 2) does vegetation structure differ in areas of historically low WTD density relative to areas where WTD are excluded via fenced exclosures? - here, an answer of `no' suggests WTD are at or below their carrying capacity. This study took place in and outside of Camp James A. Garfield Joint Military Training Center (C-JAG, Portage Co., OH), which has maintained WTD densities 2-3 times lower than the surrounding areas, since 1955. Excluding WTD at C-JAG for one year did not result in different plant communities, suggesting C-JAG's aggressive WTD management has them at or below their carrying capacity. Relative to surrounding areas, canopy gaps at C-JAG generally harbored a more diverse and abundant assemblage of native species, especially in dry habitats, and lower levels of non-native species in both habitats. Canopy gap age did not affect any response variable, suggesting a low WTD density generally promotes native plant diversity, and reduces the incidence of exotic species, regardless of gap successional stage. Given that energy transfer to higher trophic levels tends to be greater in areas of high native plant diversity, maintaining low WTD densities may facilitate the diversity and abundance of species at higher trophic levels. Lastly, without adequate WTD management, our forests will likely suffer continued native biodiversity loss, altered successional trajectories, and become increasingly dominated by exotic species.
Download or read book The Use of Endogenous Fat as an Indicator of Physical Condition of White tailed Deer written by Arthur William Stockle and published by . This book was released on 1977 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Suitability Index Models written by Henry L. Short and published by . This book was released on 1986 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of White tailed Deer Density on Breeding Songbirds in Delaware written by Elizabeth Tymkiw and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently, population goals for white-tailed deer (Odocoileus virginianus) are based solely on deer data with little consideration given to other parts of the ecosystem. A wider ecological approach is needed to provide managers with a more justifiable target deer density. I investigated the use of breeding birds to determine an ecologically based carrying capacity for deer management by studying the relationship between the forest breeding bird community and deer density in Delaware. Using Breeding Bird Survey (BBS) data from 2005-2009, my own point count data from 2008-2009, and Delaware Division of Fish and Wildlife deer density data from the same time periods, I compared avian species richness and relative abundance to deer density. I divided deer densities into low (=10 deer/km2), moderate (11-19 deer/km2) and high (=20 deer/km2) categories. I placed birds into 7 deer-sensitive guilds: interior obligates, ground nesters, shrub nesters, ground gleaners, low canopy foragers, and neo-tropical migrants. The abundance or richness of most guilds and most individual species did not differ by deer density. Of those guilds that did, shrub nesters (P = 0.074), interior forest obligates (P = 0.050), low canopy foragers (P
Download or read book Gene Flow Effective Population Size and Genetic Population Structure in White tailed Deer Odocoileus Virginianus in Northeastern Minnesota written by Michael Edward Nelson and published by . This book was released on 1990 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
