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 15 of 15 for “"Shannon Diversity Index"”.
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From Turkeys To Tamales: Paleoindian To Preclassic Period Faunal Use At Maya Hak Cab Pek Rockshelter In Southern Belize
… and to ceramic periods. A change in species diversity that includes more than thirty vertebrate animal species, and 1,651 bones, suggests that the introduction of ceramics altered the use of specific species. Statistical analysis using the chi-squared statistic and the Shannon diversity index …
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Algal Biodiversity Survey of the Middle Chattahoochee River Using DNA Metabarcoding
… of this study was to conduct an algal biodiversity survey on the middle Chattahoochee River system in Georgia. Water samples (1L) were filtered and sent to RTL Genomics for sequencing and processing; the data was then analyzed through PAST software to create diversity indices. Overall, …
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Assessment of genetic variations within and between populations of Marama Bean (Tylosema Esculentum (Burchell) Schreiber) based on Microsatellites (SSRS) and Intergenic spacer length variation markers in the Namibian germplasm
… study SSR markers were used to assess genetic diversity in natural populations of marama in the Namibian germplasm. Additionally, in the present study, the intergenic spacers (IGS) region of the large ribosomal DNA gene was amplified to assess length variation in marama bean. In the present …
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Molecular diversity of Primula apennina and phylogeny of Primula Subsection Euauricula
… (Italy). ISSR were used to detect the genetic diversity within and among six populations representative of the species distribution range. High levels of genetic diversity were revealed both at population (PPB = 75.92%, HS = 0.204, Hpop = 0.319) and at species level (PPB = 96.95%, HT = 0.242, …
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Spatial and temporal distribution of butterfly in highland and lowland forests of Johor
… state and if unchecked could lead to loss of biodiversity. Among insects, butterfly is an important bioindicator of environmental changes. For effective management purposes, a baseline data of butterfly is needed. Samplings were carried out in various forest types: Taman Negara Johor Endau Rompin …
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Diversity, species composition and distribution of odonates (odonata) in Johor state, peninsular Malaysia
… needed as the best resemblance of original biodiversity. Through effective management, it would assist the state for a better conservation practice. The purpose of this research is to provide a baseline data of odonates in Johor to facilitate prioritization of conservation areas as well as in …
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Synoptic Comparison of Salt Marsh Spatial Structure Using Hyperspectral Imagery at NOAA National Estuarine Research Reserves.
… of salt marsh ecosystem productivity, diversity, and abundance within specific National Estuarine Research Reserves (NERRs) using AISA (Airborne Imaging Spectrometer for Different Applications) imagery. |The overall goal of my thesis was to create a synoptic overview and site …
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Diversity and distribution of Tylosema esculentum (Marama bean) endophytic bacteria communities in Omitara, Harnas and Otjinene, eastern Namibia
… Kalahari Desert. Our study assessed the density, diversity and distribution of endophytic microbial community structures associated with leaves, stems and tuberous roots of T. esculentum in Eastern Namibia. Culture-dependent and PCR-based 454 pyrosequencing methods were used. ANOVA with pairwise …
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Impact of Human Activity on Protected Areas: A case study of Nech Sar National Park in Ethiopia
… areas play a significant role in conserving biodiversity and essential ecosystem services that help in providing sustainable development opportunities. As the world’s human population increases, however, these ecologically vital resources are threatened due to over-utilization of their …
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Agrobiodiversity enhancement for the sustainability of the tropical uplands: An evaluation of agricultural land use in Liliw, Laguna, Philippines
Agrobiodiversity Enhancement (ABDE) is a strategy that has been advanced for preventing environmental degradation without losing agricultural productivity. However, there is not yet sufficient evidence to support the important role that ABDE might have for managing agricultural land use in the …
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Cultural characteristics, vegetative compatibility, and spatial pattern of white hypovirulent strains of Cryphonectria parasitica on grafted American chestnut trees
… ratio of VC groups to isolates tested (S/N), and Shannon diversity index were calculated to be 0.43 and 3.64 respectively. Of the 48 VC groups identified, 25 consisted of two or more isolates. These 25 groups were found to be vegetatively incompatible with all four of the original hypovirulent …
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Using Resident Small Mammals to Assess the Habitat Potential of Experimental Biofuels Feedstocks
… and survival, and compared the small mammal diversity among feedstocks. Small mammals were live-captured across the experimental landscape for 7 months in 2011 and 6 months in 2012 following Pollock’s robust design. There were 4,018 captures (25.73% capture success) of 10 unique species over …
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Omics-driven and constraint-based modelling of microbial community metabolism
… the number of gutDBX hits and serum cholesterol, Shannon-diversity index, and total number of prescribed drugs. Finally, I conclude by highlighting further applications of metaGEM and detailing possible future directions for omics-driven metabolic modelling, including studying the global …
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Effects of Burning and Cutting on Plant Diversity on Ozark Cedar Glades in Stone and Taney County, Missouri
… study was designed to monitor changes in plant diversity in Missouri Ozark glades where eastern red cedar (Juniperus virginiana) was cut with the use of a chainsaw, but not removed, and the glade was subsequently burned. Glades in Missouri are rocky openings within forested habitats …
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Investigating mechanisms maintaining plant species diversity in fire prone Mediterranean-type vegetation using spatially-explicit simulation models
… Australia are global hot spots for plant species diversity. To ensure management programs act to maintain these highly diverse plant communities, it is necessary to get a profound understanding of the crucial mechanisms of coexistence. In the current literature several mechanisms are discussed. …