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 11 of 11 for “"conservation significance"”.
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Assessing the conservation value of wetlands and waterbirds with a focus on the winter rainfall region of South Africa
… and application of a new tool to assess the conservation significance of wetland avifauna. Termed the Waterbird Conservation Value (WCV) score, this method sums the proportion of each species' count relative to the global 1% threshold level for each species; the value obtained measures the …
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Grassland and breeding bird use of moist-soil wetlands managed for waterfowl
… to predict measures of avian density, avian conservation significance (ACS), nest density, and nest success. Nest densities were greater in grasslands (0.13 nests/ha, SE = 0.02) than in moist-soil wetlands (0.09 nests/ha, SE = 0.01), but habitat did not have a strong effect on avian density …
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The Winter Ecology of the Piping Plover (Charadrius melodus) in Coastal Georgia
… Georgia, from 2003-2006, with emphasis on the conservation significance of this site for the endangered Great Lakes population. During 2003-2004 and 2004-2005, LSSI supported up to 100 Piping Plovers during peak migration, and approximately 40 birds wintered at this site. All populations had …
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The value of animal behaviour as a bio-indicator of restoration quality
… with density of other avian species of conservation significance. Invertebrate assembly was surveyed as a measure of food resource availability. There was a significant difference between woodland and heathland areas and to a lesser, but still significant, extent between restored …
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Between a bass and a hard place: the fragmented distribution of an endangered redfin in the Heuningnes River System of the Cape Fold Ecoregion
… unique lineages. As such, the HRS is of critical conservation significance. This study analysed a data set collected by Keir Lynch in March of 2018, that consists of 22 water quality, geographic, and habitat-related environmental variables. The goal was to determine whether the distribution of …
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Environmental DNA metabarcoding and citizen science as a cost-effective and rapid tool for monitoring terrestrial mammalian species
… an important feature when monitoring species of conservation significance. The suitability of citizen science collated eDNA samples has not been fully tested to date. The Essex Wildlife Trust (EWT) have been working with citizen scientists to carryout eDNA sampling along two rivers (Colne and …
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Land Use Change in The Knysna River Catchment and Its Impacts on the Geomorphological Characteristics of the Estuary between 1984 and 2019
… estuary are recognized in South Africa for their conservation significance as a sanctuary for marine species and biodiversity alike. The economy of the area which is dependent on tourism of the Knysna Estuary and catchment. The services obtained from the ecosystem include integral biodiversity …
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Studies of the Annual Cycle of the Swallow-Tailed Kite (<em>Elanoides forficatus</em>): Migration, Habitat Use, and Parasites
… and winters in South America. Despite intense conservation concern, relatively little is known about the factors that may limit Swallow-tailed Kite populations. I examined three aspects of the annual cycle that could have conservation significance: stopover behavior on Cuba and the Yucatan …
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Systematics of Tridactyloidea (Orthoptera: Caelifera): Taxonomic revision of extinct taxa with comments on extant taxa
… ecology, diversity, distribution, systematics, conservation, significance and applications. Chapter 2 includes the description of two new species from Colombia and the first record of the genus Dentridactylus (Tridactylidae) for Colombia. This is a rare genus with only four known species, which …
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Patterns in the composition and distribution of the vertebrate fauna, desert uplands bioregion, Queensland
… is the lack of adequate biological data for such conservation planning. James et al. (1995) and Fisher (2001a) recommended a framework for undertaking research in Australia’s rangelands including identifying spatial and temporal patterns of biota, quantifying the impact of pastoralism, developing …
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THE CONSERVATION OF HISTORIC TRACKWAYS
… evaluative model which is intended to assess the conservation significance of historic trackways from a pragmatic perspective, leading to the development of practice guidance that may be of assistance to conservators facing the prospect of attempting to conserve an historic route. Whilst loosely …