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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.
21

Evaluation of Tennessee State Park governance public involvement, agency accountability and conservation implications /

Long, Mary Mallinson. January 2005 (has links) (PDF)
Thesis (M.S.) -- University of Tennessee, Knoxville, 2005. / Title from title page screen (viewed on Sept. 2, 2005). Thesis advisor: David Ostermeier. Document formatted into pages (x, 125 p.). Vita. Includes bibliographical references (p. 103-107).
22

Art and conservation

Dent, Hugh R January 1975 (has links)
There can be no doubt that population increase and environmental pollution are the world's biggest problems today. These pose serious threats to the quality of life and art. They can only be remedied by an efficient system of birth-control and sound compulsory education, in order to regain spiritual enlightenment. Intro. p. 1.
23

Factors affecting the conservation of renosterveld by private landowners

McDowell, Clive Robert January 1988 (has links)
Includes bibliographies. / West Coast Renosterveld, once prevalent on the south-western Cape lowlands of the floristically rich Cape Floral Kingdom, is now South Africa's scarcest vegetation type. Delimitation and measurement of the 55 "island-remnants", scattered amongst agricultural lands indicated that only 3% of the original vegetation remains. Measured soil quality, gradient and rainfall (critical agricultural criteria) were used to derive agricultural 'threat' indices (probability of agricultural clearance) for each remnant. The indices agreed well with observed trends in the recent clearance of remnants not deliberately conserved by landowners. This new approach has potential for determining which remaining natural sites most urgently need preservation. It was demonstrated that agro-technical innovation poses a long-term threat to even the low agricultural 'threat' rated renosterveld. Pasturage, invariably practised in renosterveld, was assessed by comparing "grazed" with "ungrazed" plant species covers. Within the test site, heavy grazing increased Asteraceae and Iridaceae, decreased Poaceae and Rutaceae, and eradicated Proteaceae. These changes may reflect local trends associated with modern grazing regimes. Total plant diversity and cover were not found to be affected. Therefore, controlled pasturage reflects a relatively minor threat to the extinction of floristic elements. Private landowners are found to control the destiny of 80% of West Coast Renosterveld. The conservation attitudes and behaviour of a random sample of these critical decision-makers were analysed. A new approach was devised to assess 32 subjective, bias-prone "intangible" variables. This required additional assessors to provide independent, non-parametric ratings of the author's tape-recorded interviews with the landowners. Results were pooled and "inter-assessor" measurement error was estimated. Altogether 52 variables, including a further 20 "tangible" variables, were rated under categories: 'Demographic', 'Psycho-Social, 'Land Use' and 'Conservation Strategy'. A correlation matrix portrays inter-relationships between variables and their correlations with landowner "Conservation Behaviour". Landowners' knowledge of biota, rapport with interviewer, education, affluence, bilingualism, and parents' education all correlated positively with conservation. Linear equation models were derived (using Best Subsets Statistical Programme) to predict 'Conservation Behaviour'. Although most conservation related variables are "fixed" (e.g. it is not possible to change parents' education), the understanding of these background factors (not previously applied to conservation of natural ecosystems) enables choice of the most appropriate strategy to persuade landowners to conserve. Different groupings of landowners having similar ratings of key variables have similar needs and constraints to be considered vis a vis improving their "Conservation Behaviour".
24

Avian grazers and their impact on reedswamps in the Thurne Broads, Norfolk

Prater, A. J. January 1995 (has links)
No description available.
25

Management agreement and private-public partnership as conservation tools in Hong Kong

Pang, Lee-yan., 彭莉恩. January 2009 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
26

A study of land use and vegetation at SENTA

Mason, Paul M. January 1993 (has links)
No description available.
27

Landscape ecology as a framework for woodland creation in Sherwood Forest using geographic information systems

Nikolakaki, Pantoula January 2000 (has links)
No description available.
28

The implementation of Regulation 2078/92/EEC in Spain : a case study of the Cereal Steppes ESA in Castilla y Leon

Petersen, Jan-Erik January 1998 (has links)
No description available.
29

Benefitting from biodiversity-based innovation

Cristancho-Pinilla, Edwin Arvey January 2017 (has links)
This thesis argues for the need for a more comprehensive discussion of biodiversity use in relation to enhancing benefits of this use for biodiverse countries and promoting more equitable sharing of these benefits. The findings from this doctoral research reveal that biodiversity-based innovation is a social shaping process that has resulted in large benefits. The cumulative capability to use species from biodiversity gives meanings that contribute to the species shaping process, with organisations and institutional changes providing direction and increasing the rate of the shaping process. In showing how innovation takes place and how the appropriation of benefits occurs, this research contributes to studies on science policy and innovation in relation, especially, to biodiversity-based innovation. The thesis introduces the Convention of Biological Diversity (CBD) and the Nagoya Protocol as representing change to the governance of biodiversity. The theoretical approach draws on evolutionary and institutional economics, both of which inform and extend a question that is central in the sociology of technology: That is how are technology (innovation understood as an output) and social practices shaped collectively? Three cases are used to trace what occurs in the shaping process of species from biodiversity: (i) The Jersey cow is a breed within the species Bos Taurus or modern taurine cattle. The isolated character of Jersey delimited the scope of the breed at a point in time when it was being bred locally and allow us to identify its shaping as a ‘technology', and the broader diffusion of its use. The Jersey cow is used to introduce the theoretical framework and the analysis. (ii) Maca, originally from Peru, is a root crop with nutritional and, allegedly, fertility enhancing properties. It was domesticated in Peru and only a few world regions have conditions favouring its production. Maca is commercialised as flour and used as a raw material. (iii) Quinua has great potential as a staple food crop. The Food and Agriculture Organization (FAO) declared 2013 to be the International Year of Quinoa on the basis of its unique and nutritious character. Three Andean countries (Bolivia, Ecuador and Peru) report exports of quinua grain, although dozens of countries around the world are engaged in performing agronomic testing for its commercial production. A comparative analysis of the three cases helps to identify the science and technology policy issues related to implementation of the CBD and the Nagoya Protocol. The case studies demonstrate the innovation process of species from biodiversity. Benefits arise from the diffusion of the use of the species (via commercialisation), which accrued to individuals or groups. The characterisation of the innovation process highlights how the voices and agency of actors and organisations affected the shaping process. The governance over the goods that emerged from the use of the species defined the appropriation of benefits.
30

An analysis of optimal farmland preservation models

Ernst, Steven. January 2007 (has links)
Thesis (M.S.)--University of Delaware, 2007. / Principal faculty advisor: Joshua M. Duke, Dept. of Food & Resource Economics. Includes bibliographical references.

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