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 29 for “"biodiversity hotspots"”.
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Avifauna and Anthropogenic Forest Disturbance in Two Biodiversity Hotspots.
… disturbance on avifaunal communities in two biodiversity hotspots- lowland tropical forest in the Lambusango Forest Reserve within the Wallacean archipelago and Neotropical cloud forest in Cusuco National Park, Mesoamerica. Both these study areas possess diverse bird communities with high …
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Mapping Plant Biodiversity Hotspots at the County Scale: A New Tool for Establishing Resource Conservation Strategies
<p>Myers first identified the world’s 25 biodiversity hotspots and pioneered innovative ideas about the usefulness of biodiversity models for establishing long-term resource conservation strategies at global scales. Since Myers, most of the subsequent studies using hotspot science for biodiversity …
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Probabilistic Ecosystems Assessment with Reinforcement Learning.
… and habitat degradation are altering biodiversity distributions, increasing the need for rapid advancements in monitoring techniques. While current data collection techniques yield valuable ecological insights, they are frequently hindered by logistical constraints, high operational …
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Reassessment of the extinction risk of the Neotropical freshwater crabs of the family Pseudothelphusidae
<p>The Neotropical region is one of the world’s biodiversity hotspots, and its freshwater crabs are notably diverse, and are represented by two families, Pseudothelphusidae and Trichodactylidae. This study focuses on this region’s highly diverse Pseudothelphusidae which includes 48 genera and 289 …
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Biodiversity and Biogeography of Deep-Sea Gastropod Mollusks from the Pacific Costa Rica Margin
… vents and hydrocarbon seeps, represent biodiversity hotspots along the ocean floor. Yet, investigations into the diversity, genetic connectivity, and biogeography of life at such ecosystems are still ongoing. The present dissertation explores the diversity and biogeography of deep-sea …
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Revised distributional estimates for the recently discovered olinguito (Bassaricyon neblina), using museum and science records
… limits. This is especially important for biodiversity hotspots with high endemism such as the Northern Andes. The olinguito (Procyonidae: Bassaricyon neblina) is a recently described, medium-sized carnivoran found in Northern Andean cloud forests. A preliminary distributional model was …
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Evaluation du succès de restaurations de pelouses calcicoles de la vallée du Viroin : densité en individus et succès reproducteur de deux espèces cibles.
Calcareous grasslands are local biodiversity « hotspots ». Unfortunately, these exceptional ecosystems have undergone a drastic fragmentation since the abandonment of traditional agro pastoral practices. Consequently, many calcareous grassland species are now in danger. In Belgium, since 1990, many …
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The Cocaine-Wildlife Connection: Crime Convergence in Central America
… and trade networks intersect in Central American biodiversity hotspots, however, the links between illicit activities and global environmental change are poorly understood. To better understand this intertwined threat to biodiversity and security, this research asks: What are the spatiotemporal …
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The Ecology and Evolution of the Freshwater Turtles of Southern Mississippi
… Southeastern United States is one of two global biodiversity hotspots for turtle species, including the state of Mississippi, where over 30 species can be found. However, very few studies have occurred within the state. This lack of research is even more startling given the ongoing decline, or …
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An Evaluation of the Medicinal Plants of Andros Island, Bahamas
… from urbanization that are threatening local biodiversity hotspots. Ethnobotany is not only important from a conservation standpoint but is also used to preserve traditional knowledge of herbal medicinals and applications, the people of Andros continue to rely on bush medicine, mainly in the …
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The Biodiversity Mirage: the Effects of Habitat Degradation and Exotic Predators on Ground-Dwelling Forest Birds, Tenrecs and Lemurs in Northeastern Madagascar
… complex in order to protect one of the world's biodiversity hotspots.
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Land use and its impact on the Succulent Karoo
… is one of the 25 internationally recognized biodiversity hotspots in South Africa with approximately 1940 endemic species. The SK biome is, however, poorly conserved with less than 5% of the area under formal protection. It is also highly threatened by a range of different land use practices. …
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Phylogenetic Analyses of Andean and Amazonian Tree Communities in Ecuador
… and endemism, classifying the country as a biodiversity hotspot. Both the western Amazon and Andean montane forests are richly populated with tropical tree species that have been little studied in a community phylogenetic context. The implementation of elevational transects and trait based …
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Monkey beetles on the beat: urban monkey beetles reveal opportunities for pollinator habitat management in a South African city
… region and southern Africa has three global biodiversity hotspots. This thesis is a first step towards filling the Africa gap. Its ought to do so by investigating urban monkey beetles (Coleoptera: Scarabaeidae: Hopliini) in two ways. Firstly, it relates Hopliini community structure to urban …
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A multiscale analysis and quantification of human impacts on Sumatran tiger (Panthera tigris sumatrae) habitat in Riau, Sumatra
Worldwide, we are losing biodiversity at unprecedented rates, and due to deforestation, degradation and poaching, Southeast Asian wildlife is facing extreme threats. Indonesia recently eclipsed Brazil in having the world's highest deforestation rate, largely due to the rise of the palm oil …
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Understanding philanthrocapitalism and its impact on private nature reserves: A case study of Gorongosa, Mozambique
… intervene in political ecology particularly in biodiversity hotspots in the global South. Notwithstanding philanthrocapitalism growing prominence and significance, broader public debates and academic literature is just emerging in recent years and the impact on nature conservation has received …
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Contested Values of Eco-Developments: Leveraging Private Finance to Integrate Biodiversity into Nusantara’s City Development Framework
… new eco- developments which are planned within biodiversity hotspots should adopt resilient climate adaptation strategies for long term benefits. However, these projects are often not financially justified or positioned to sustain long investments and holding periods. This thesis examines …
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Phylogenetic relationships and the effects of edaphic heterogeneity on the distribution of Wiborgia (Fabaceae) in the Greater Cape Floristic region
… Karoo biomes, and are recognized among global biodiversity hotspots. The soils in the ECR are mostly shale derived and richer in nutrients compared to the CCR which is characterized by nutrient-poor sandstone soils mainly from the Cape System. The Fabaceae (Leguminosae) is the second largest …
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Disturbance effects of boat-based tourism on waterbirds at the Ramsar-designated De Hoop Vlei, Western Cape, South Africa
… are growing in demand worldwide, especially in biodiversity hotspots. Protected area managers may seek to introduce novel activities in order to generate revenue. However, disturbance effects brought about through encounters between humans and wildlife can have negative consequences, which …
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Diversification dynamics and evolution of the Australian temperate flora
… observed between the southwest Australian global biodiversity hotspot region (SWA) and southeastern temperate Australia (SEA) are lacking. In this thesis, I address this gap in knowledge through assessments of (1) differences in diversification dynamics between the two Australian temperate floras …
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