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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Nonindigenous herpetofauna of Florida patterns of richness and case studies of the impacts of the tadpoles of two invasive amphbians, Osteopilus septentrionalis and Bufo marinus /

Smith, Kevin G., January 2005 (has links) (PDF)
Thesis (Ph. D.) -- University of Tennessee, Knoxville, 2005. / Title from title page screen (viewed on Sept. 6, 2005). Thesis advisor: Arthur C. Echternacht. Thesis advisior: Christine R. B. Boake. Document formatted into pages (xvi, 151 p. : ill. (some col.)). Vita. Includes bibliographical references.
2

Amphibian and Reptile Trade in Texas: Current Status and Trends

Prestridge, Heather L. 2009 August 1900 (has links)
The non-game wildlife trade poses a risk to our natural landscape, natural heritage, economy, and security. Specifically, the trade in non-game reptiles and amphibians exploits native populations, and is likely not sustainable for many species. Exotic amphibian and reptile species pose risk of invasion and directly or indirectly alter the native landscape. The extent of non-game amphibian and reptile trade is not fully understood and is poorly documented. To quantitatively describe the trade in Texas, I solicited data from the United States Fish and Wildlife Service's (USFWS) Law Enforcement Management Information System (LEMIS) and Texas Parks and Wildlife Department's (TPWD) non-game dealer permits. I surveyed amphibian and reptile pet owners, breeders, Internet sites, pet shops, and meat and seafood establishments by visits, electronic surveys, and observations. The trade in exotic species of amphibians and reptiles in the state of Texas was found to be popular in two ways; the importation of wildlife products and sale of live specimens for pets. Persisting in the pet trade were species known to be exotic, a problem made worse by lack of regulations governing the import, export, and keeping of exotic species. Trade in wild collected native species was primarily for export to foreign countries. Collection of turtles from the wild in Texas was heavy until 2008, when TPWD restricted collection to private waters. Collection of other species from the wild was minimal, with the exception of the Western Diamond-backed Rattlsnake (Crotalus atrox) for rattlesnake roundups. Native species were found to exist in the pet trade, but primarily as genetic color variants that do not occur in the wild, an indication that captive breeding may be relieving pressures on wild caught specimens. Minor changes in reporting requirements and permitting systems at the state and federal level would improve the management of exotic and native amphibians and reptiles that persist in the trade. Changes that include standardized taxonomic reporting requirements at state and federal level, streamlined permitting system for individuals wishing to collect from the wild in Texas, bag limits and seasons for wild collection, increased reporting requirements for owners of exotics, and enforcement of reporting errors would aid in management of exotic and native amphibians and reptiles in the trade.
3

Návrh výukového programu Obojživelníci a plazi / The proposal of the educational programme Amphibians and Reptiles

BALÍČKOVÁ, Lenka January 2008 (has links)
The aim of the diploma thesis was to create the project of the educational programme with motivational components, concerned mainly on amphibians and reptiles in our country. The program is intended for pupils of the 7th classes of the basic school, mainly in the surrounding the town Horažďovice, because it takes into account the particular conditions of this region. The conceptual and structural analysis of subjects Amphibians and Reptiles in school-books, which are used in the Czech republic, was done before the programme scheduling. The next data source was the faunistic research of the area in question and comparison of results with published data. The educational programme includes the parts {\clqq}Amphibians``, {\clqq}Reptiles`` and {\clqq}Questions and tasks``. Some of the tasks were practically tested.
4

Spatial Analysis of Amphibians and Reptiles in the Oak Openings Preserve

Martin, Amanda K. 24 July 2015 (has links)
No description available.

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