Browsing by Subject "wildlife"
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Item A comparison of the environmental effects of traditional intensive forestry and the sustainable forestry initiative: a modeling approach at the landscape level(Texas A&M University, 2004-09-30) Azevedo, Joao CarlosChanges in landscape pattern caused by changes in forest management, namely the Sustainable Forestry Initiative (SFI), and the implications of these structural changes on landscape processes were analyzed. Landscape structure was studied based upon the comparison of landscapes with different management histories. Ecological processes were analyzed based upon simulation of stand and landscape attributes of habitats for several vertebrate species and upon simulation of hydrological processes such as water and sediment yield. A methodology to integrate landscape and stand pattern and dynamics with landscape processes was developed for this work. It integrates a forest landscape structure model, several stand level growth and yield models, vertebrate habitat models, and a hydrological model. The comparisons among landscapes revealed that forest management has a strong influence on landscape structure. The SFI program increases fragmentation of the landscape indicated by the presence of more and smaller patches, more edges, more complex shapes, and less and smaller core areas. Traditional intensive and extensive management show comparable patterns characterized by high aggregation and connectivity. Landscapes managed according to the SFI program show higher Habitat Suitability Index (HSI) values for American woodcock, American beaver, wild turkey, fox squirrel, and gray squirrel. HSI is higher for pine warbler in the landscape not managed according to the SFI program. Downy woodpecker and barred owl present very reduced HSI values in either landscape. The SFI program induced fragmentation of the habitat of pine warbler and the establishment of narrow and elongated habitats in a network structure for the remaining species. Both patterns are determined by SMZs. The scenario representing management according to the SFI program presents higher sediment yield at the watershed level than the scenario representing management not according to the SFI program due to higher channel erosion related to the absence of buffer strips in the non-SFI scenario. In general, management according to the SFI program increases landscape diversity and evenness, habitat suitability for most species, potential vertebrate diversity, and provides habitat structure suitable for most species. This management also decreases sediment loss at the watershed level.Item A national assessment of wildlife information transfer to the public(Texas A&M University, 2004-11-15) Lindsey, Kieran JaneA self-administered questionnaire was developed using the Tailored Design Method (Dillman 2000) to assess how information about wildlife, beyond traditional hunting and fishing issues, was transferred to the public by the five selected governmental agencies: state wildlife management agencies (DNRs), U.S. Fish and Wildlife Service (USFWS), USDA Wildlife Services (WS), Cooperative State Research, Education and Extension Service (CSREES), and U.S. Forest Service (USFS). The questionnaire addressed agency mission and record-keeping, as well as public demand for information and agency response concerning non-traditional wildlife issues, including: conflicts between humans and wildlife; human health and safety; attracting wildlife; viewing wildlife; general curiosity; and wildlife in distress (i.e., injured, diseased, orphaned). Respondents said that providing the public with information on wildlife and related issues is a significant part of their mission. Unfortunately, few kept permanent records of their interactions with constituents or had established formal protocols for handling queries about non-traditional wildlife issues. Several factors may prevent effective transfer of information about non-traditional wildlife issues to the public, including the historic emphasis on consumptive users. However, collaborative efforts between governmental and non-governmental organizations may prove to be an effective way to respond to public demand.Item Evaluation of the Landowner Incentive Program in Texas: 1997-2007(2012-02-14) Knipps, AnnaThe Landowner Incentive Program (LIP) was developed by the Texas Parks and Wildlife Department in 1997 in response to controversy and conflict between wildlife conservation agencies and landowners. The incentive was meant to encourage voluntary enhancement or establishment of habitat for rare species in the state, by providing technical assistance and a 75% cost-share. To evaluate the program in its first decade of existence, I gathered feedback from stakeholders via interviews, a mail survey, and case studies of LIP projects that focused on the black-capped vireo. The stakeholders I identified as administrators of the program, field personnel who acted as liaisons between administrators and landowners, and the landowners themselves. I used a qualitative theme analysis for interviews and open-ended survey responses to capture salient topics from the various perspectives. I analyzed closed-ended mail survey responses with descriptive statistics and ANOVA. For the case studies, I conducted vireo and habitat surveys and report the results with descriptive statistics or anecdotes. Stakeholders were generally pleased with the program in its first decade regarding rare species habitat improvements. Most of the 126 projects were completed and resulted in an increase of habitat for a variety of species across the state. The funding sources changed over the decade, bringing with them new directives, but in general LIP investments benefitted rare and declining species, whether listed under the ESA or not. Relations between landowners and conservation agencies also seemed to be improved in some cases and to be created in others. Every program has its difficulties to work through as it evolves, and LIP is no exception. The first 7 years of the program were state-administered and encountered a variety of modifications due to personnel changes and differing opinions on program priorities. In 2002, LIP became a national program, requiring Texas to compete for funds, and also federal clearance requirements that caused many administrative delays. My recommendations for program improvement included improved monitoring of project outcome, immediate evaluation of participants, increased communication and cooperation among various agencies who work with landowners, and dedicated staff to assist all other stakeholders in the LIP process.Item The Role of Free-ranging Mammals in the Deposition of Escherichia coli into a Texas Floodplain(2011-10-21) Parker, Israel DavidFree-ranging wildlife are an important contributor of fecal pollution in the form of Escherichia coli (E. coli) to water bodies. Currently, details of this contribution are nebulous and understudied. Much of the related research has not focused on freeranging wildlife; instead investigations examine entire systems while estimating wildlife contribution indirectly or with data of inconsistent quality and source. I began my research by conducting a meta-analysis of existing research to determine the current state of knowledge of wildlife?s specific contribution. Data were sparse, fragmented, of variable quality, and difficult to access. Researchers relied on a variety of outside sources (e.g., state natural resource agencies). Making comparison between studies was nearly impossible because methodologies differed greatly or were described inconsistently. I then calculated wildlife population densities, undertook fecal collection, and conducted spatial analyses of fecal deposition to gather accurate and relevant data of the study area. I augmented field data collection with data derived from my meta-analysis (i.e., fecal deposition rates). I was able to estimate the relative role of individual species (e.g., raccoons [Procyon lotor], white-tailed deer [Odocoileus virginianus], and feral hogs [Sus scrofa]). Finally, I created a model using these data to determine important parameters for future research (e.g., fecal deposition rates) and simulate various management strategies. Although all parameters need more research focus, I found defecation rates were especially important but little researched. I found raccoons were the greatest determiner of potential E. coli load in the floodplain though adjustment of other parameters would greatly impact these findings.