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 26 for “"reintroductions"”.
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Food–web implications of reintroducing anadromous salmonids in reservoirs on the North Fork Lewis River, Washington
Reintroductions using active transport (trap–and–haul) of anadromous salmonids around impassable high–head dams are being proposed with increasing frequency in the Pacific Northwest. Such reintroductions have already begun or are proposed above three dams on the North Fork Lewis River in Washington …
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Effects of forest management, prey, and predators on the habitat selection of fishers in the South Cascades of Washington.
… the most common reasons for failure of wildlife reintroductions is releasing animals into low quality habitat that does not meet resource needs. Food availability and the presence of potential predators or competitors in the reintroduction area are integral aspects of habitat quality that are …
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Ecology and Structure of Black Bear (Ursus americanus) Populations in the Interior Highlands of Arkansas
… to be considered one of the most successful reintroductions of carnivores. In this dissertation, I sought to examine the current population size and density of bears in the Ouachita and the Ozark National Forests in Arkansas and to explore how dispersal patterns are influenced by population …
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Restoration of threatened species populations: tuatara rehabilitations and re-introductions
… be considered as habitat options for future reintroductions of tuatara. Testing habitat needs as well-planned experiments offer more reliable information to guide future reintroductions than that generated by trial releases or releases to similar locations. Future reintroductions of tuatara …
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Comparative analysis of wild and long term captive bred Partula snails using morphometrics and population data
… species are kept in captivity currently. Several reintroductions have taken place with over 10,000 snails being reintroduced to the islands with varying levels of success. Partula have been in captivity now for over 60 years, with many of the species founded with small numbers. There is concern …
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The reintroduction of the Aldabra rail Dryolimnas cuvieri aldabranus to Picard Island, Aldabra Atoll
… removal of territorial birds for other proposed reintroductions, but highly vulnerable to the establishment of a predator. The soft release protocol (including a period of acclimatisation before release and supplementary feeding, as required, after release) is believed to have played a crucial …
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The eco-evolutionary consequences of multiple introductions for colonizing individuals
… climate change-induced species range shifts, and reintroductions of rare species. Propagule pressure, which comprises the number of introduction events (propagule number) and the number of individuals per introduction event (propagule size), consistently correlates with a greater probability of …
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Culture and collaborative conservation? Inter-cultural difference and the Maungatautari Project
… on such issues as cultural harvesting, species reintroductions and care, ecotourism, development on the mountain, and biodiversity research. Normative solutions are identified which can aid Maungatautari stakeholders and other culturally-heterogeneous multi-stakeholder conservation groups work …
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The Blackfoot Valley Trumpeter Swan Reintroduction: A Chronology and Case Study
… of continued success of subsequent yearly reintroductions and achievement of the final goal of a viable breeding population of trumpeter swans in the Blackfoot Valley. The purpose of this professional paper is to provide a detailed chronological case history of the first year of the …
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The Blackfoot Valley Trumpeter Swan Reintroduction: A Chronology and Case Study
… of continued success of subsequent yearly reintroductions and achievement of the final goal of a viable breeding population of trumpeter swans in the Blackfoot Valley. The purpose of this professional paper is to provide a detailed chronological case history of the first year of the …
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Solarization as a means to eliminate invasive plant species and target the seedbank
… acts to reduce the effectiveness of native plant reintroductions. A technique known as "solarization" was used to eliminate the seedbank and to facilitate the survival of native plants. Tarps were used to eradicate existing plants followed by disturbance of the soil and watering to induce …
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Shared landscapes : exploring the relationships between people and red kites in the UK
… is hoped this work will contribute to how future reintroductions are approached, and add valuable insights regarding human-red kite and human- wildlife conflict mitigation and resolution strategies.
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Development of resource-rich patches by soil-disturbing animals in arid environments
… and unpublished literature of the potential for reintroductions of ecosystem engineers to restore ecosystem function in degraded environments. Chapter 8 summarises the research presented in this thesis and its implications, and suggests directions for future work.
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Stream channel adjustments and persistence of change in response to beaver damming on a fluvial fan, Odell Creek, Montana
… through in-channel sediment storage, thus beaver reintroductions are used as a river restoration tool to repair incised stream channels. However, effects of beaver damming are dependent on specific stream hydrologic and geomorphic characteristics. Data on dam effects, especially the longevity of …
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Assessment of a freshwater turtle reintroduction
… reintroduction biology is a young discipline. Reintroductions often elicit criticism for attempting to restore populations without directly addressing sources of declines. However, global population declines have made reintroduction a necessary tool for modern conservation necessitating the …
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The Role of Symbiotic Bacteria in Disease Resistance and Conservation of the Critically Endangered Panamanian Golden Frog
… in captive colonies with the goal of future reintroductions. An understanding of this species' natural defense mechanisms against Bd is needed for reintroduction to be successful. Previous studies indicate that cutaneous bacteria are an important defense mechanism for some amphibians and …
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The Falkland fritillary: biological and ecological factors in the conservation of Yramea cytheris cytheris (Drury 1773).
… Urgent consideration should be given to ensuring reintroductions can be made in response to extinctions. A case is made for Y. c. cytheris to become a flagship for insect conservation in the Falklands.
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Effects of early-life social experiences on learning and conservation in a threatened songbird
… can help conservation management of hihi during reintroductions. We often move groups of juveniles to establish new populations but do not know if maintaining social groups could improve chances of establishment. I used social network analysis to explore whether juveniles maintained group …
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The history, ecology, and reintroduction of the chequered skipper butterfly Carterocephalus palaemon in England
… to determine the global status of butterfly reintroductions, and the impact of woodland management on other taxa at Fineshade Wood was assessed.<br/><br/>A novel, non-invasive photographic-mark-recapture (PMR) population sampling technique was developed using the unique wing markings of C. …
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What studbooks can tell us about captive breeding programmes : a case study of cheetahs (Acinonyx jubatus)
… will generate genetic improvement for future reintroductions in the wild and the avoidance of extinction. In conclusion, although there is some effort in protecting and managing zoo species through studbooks, conservationists should make maximum use of such datasets to inspire the creation of …
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