Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 105 for “"IUCN"”.
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IUCN red listing of marine macroalgal species : a South African case study
The IUCN Red List of Threatened Species is considered an important tool for conservation. However most evaluations have been restricted to terrestrial species and marine species are underrepresented. In contrast to terrestrial environments, the marine environment differs in dispersal restrictions …
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Applications of the IUCN Red List in evaluating global extinction risk of timber tree species.
… subset of timber tree species by applying the IUCN Red List (Red List) of Threatened Species Categories and Criteria; and, lastly, to evaluate the uncertainty of these preliminary Red List assessments. Consolidation of open-access timber lists produced a ‘working list’ of 1,578 angiosperm …
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The IUCN red list for ecosystems: how does it compare to South Africa's approach to listing threatened ecosystems?
… International Union for Conservation of Nature (IUCN) Red List of Ecosystems (RLE) standards is an important development that has received broad acceptance globally. More than 100 countries across the globe including South Africa and Myanmar have adopted the IUCN RLE standards as their national …
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Assessing species richness patterns and conservation threats (due to overharvesting and climate change) in South African Cycads, with emphasis on a population of Encephalartos tranvenosus Stapf and Burt Davy from the Soutpansberg Mountain, Limpopo Province
… evaluated all African cycads over a decade using IUCN red list. Data from IUCN 2014 version was used to calculate the percentages of African cycads in each IUCN categories. The results were compared with those presented by Donaldson 2003. They showed that there have been significant decline and …
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Exploring the International Union for the Conservation of Nature (IUCN's) National Program Development in Biodiversity Conservation: A Comparative Study of India, Pakistan, Nepal, and Bangladesh
<p>This dissertation investigates IUCN's role in global biodiversity conservation policy as well as in national program development in India, Pakistan, Nepal and Bangladesh. It explores how nature protection priorities and approaches are promoted or addressed by IUCN, an international organization, …
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Impact of climate change on extinction risk of montane tree species.
… risk of the species. With the use of the IUCN Red List Categories and Criteria, selected tree species were assessed to identify their extinction risk. Information on the species’ current distribution was collated and used to estimate their potential distribution under climate change, by …
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A “Neighborhood” Approach for Using Remotely Sensed Data to Post-Process Species Distribution Models for Conservation Assessments
… species currently considered threatened by the IUCN (<em>Handleyomys chapmani</em>). After building a Maxent species distribution model indicating climatically suitable areas, I determined deforestation tolerance thresholds (the lowest value of forest cover where the species has been observed …
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Integralioji kultūros ir gamtos paveldo apsauga: regioninė perspektyva /
… the formation of integrated heritage management- IUCN (The World Conservation Union - main inspectional organisation activ in the protection of natural categories. Recently it recognised significance of cultural aspects in the protection of natural territories. In 1994 IUCN adopted Guidelines for …
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The status and prospects of Wattled Cranes Grus carunculatus in the Marromeu Complex of the Zambezi Delta
… at about 13 000 - 15 000 birds, while the IUCN (The World Conservation Union) Red Data Book suggested a total population of only 7 000 (Collar and Stuart 1985). Urban (1996) again estimated the total population at about 13 000 - 15 000 birds, but with a markedly different distribution among …
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Identifying Marine Key Biodiversity Areas in the Greater Caribbean Region
… International Union for Conservation of Nature (IUCN), therefore, formulated a set of criteria and thresholds using quantitative and transparent selection methods to iteratively identify sites where species and habitats are most urgently in need of protection. The identification of these Key …
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Assessing conservation measures for five Southern African endemic shark species
… Union for the Conservation of Nature (IUCN) Red List. However, South Africa continues its efforts to protect the marine environment with a network of 42 Marine Protected Areas established; the Second National Plan for the Protection of Sharks was published in 2022. Sharks, which are …
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Exploring the Behaviour and Physiology of Juvenile Bonefish (Albula vulpes): Fundamental and Applied Perspectives
… are currently listed as ‘near-threatened’ by the IUCN, calling for a shift in research priorities to consider more than adults. In Chapter 2, I experimentally assessed juvenile bonefish shoaling preference when given the opportunity to shoal with conspecifics and other nearshore juvenile fish. In …
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Effect of fear and representations of great white sharks on great white shark conservation behavior
… International Union for Conservation of Nature (IUCN) red list. This study uses the theory of planned behavior (TPB) to test how different factors such as attitudes, subjective norms, perceived behavioral control along with representations and fear of great white sharks affect great white shark …
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Territorial Challenges and Sustainable Regional Development. A mixed-method approach
… systems, combining Ostrom’s framework with IUCN evaluation criteria and interviews along the Cammino Naturale dei Parchi to compare governance capacity, participation and pressures. Overall, results argue for place-based policies designed at functional territorial-system scale, coupling …
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Activity Patterns, Home Range, and Microhabitat Selection of a Terrestrial Turtle (Rhinoclemmys rubida perixantha) in a Tropical Dry Forest
… International Union for Conservation of Nature (IUCN) as needing special protection. The Eurasian pond and Neotropical wood turtles of the family Geoemydidae are the most diverse turtles and comprise ¼ of all turtle species yet basic information on their natural history is lacking. Moreover, …
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Conserving the iconic and highly threatened mahseer fishes of South and Southeast Asia.
… papers across seven peer review journals and an IUCN Red List assessment. The mahseers (Tor spp.) represent an iconic group of large-bodied cyprinid fishes found throughout the fast-flowing rivers of South and Southeast Asia. Due to the considerable religious, cultural and recreational …
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Conservation of endemic species in China
… are inadequately protected. Most of these the IUCN currently deems threatened. But 7 mammal, 3 bird, and 20 amphibian species are currently non-threatened, yet their geographical ranges are <20,000 km2 which is the threshold for IUCN to consider it as threatened. There is a high concentration …
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Assessing the global conservation status of ecologically poorly undertood, threatened chelonian species : the case of the critically endangered Madagascar spider tortoise (<i>Pyxis arachnoides</i>)
The IUCN Red List for Threaten Species is widely regarded as the authority for assessing a particular species conservation risk. However, this process has come under some criticism for designating species as high conservation risk on a precautionary principle, using limited data, grey literature or …
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Mapping and assessing ecosystem threat status of South African kelp forests
… Conservation of Nature Red List of Ecosystems (IUCN RLE). To assess threat status, ecosystem extent and condition were considered. Three kelp forest ecosystem types were assessed; namely Namaqua, Cape and Agulhas Kelp Forests and an additional combined single South African Kelp Forest to explore …
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Diversidad avifaunistica en el área natural protegida Normandía y los agropaisajes colindantes, Depto. de Usulután, El Salvador
… y criterios oficiales de amenaza (MARN 2009 y IUCN 2012).
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