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 9 of 9 for “"Species Richness and Evenness"”.
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Diversity Analysis of Soil Fungus Communities in Disturbed, Nursery, and Mature Forest Conditions
… d’Alene Forest Service nursery, Swamp Lake, and the Keechelus Lake wildlife overcrossing soils. All sampling sites were connected by their relation to the revegetation and native soil plug inoculation of the wildlife overpass. This study was an effort to describe soil fungi communities …
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An evaluation of the removal method for estimating benthic populations and diversity
… data for estimating benthic sample populations and species catchability. The removal sampling method was compared to Modified Hess, Surber, and Kicknet sampling methods, and gave consistently higher and less variable estimates than other methods. Taxa showing the lowest catch abilities included …
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Phytoplankton productivity and Milankovitch Cycles in the Cenomanian-Turonian Bridge Creek member of the Greenhorn Formation in southeastern Colorado
… combination of fluctuating primary productivity and humid/arid climate cycles. Species richness and evenness indices for palynomorph assemblages from 24 Bridge Creek beds were statistically analyzed using Analysis of Variance. The results indicate that assemblages for the limestone beds exhibit …
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Western Pacific paleoceanography across the Early–Middle Pleistocene boundary (~773 ka, Marine Isotope Stage 19): Dinoflagellate cysts of the Chiba composite section, Japan.
… section, central Boso Peninsular, Japan, is a candidate Global Boundary Stratotype Section and Point for the Early–Middle Pleistocene Subseries boundary. This well-exposed, continuous and expanded marine silty sedimentary succession has a detailed paleomagnetic record and an …
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Investigations of Phytoplankton Diversity in Chesapeake Bay
… in relation to environmental conditions and ecosystem functions are core concepts in ecology. While decades of research have led to a growing comprehension of diversity in many ecosystems, our understanding in aquatic habitats and microbial organisms remains relatively limited. …
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From camera traps to conservation: biodiversity and mammal functional diversity in the Langkloof Corridor, Eastern Cape province, South Africa
… (GBF) calls for protecting 30% of the planet’s land and sea by 2030. Achieving this ambitious target requires not only increasing protected area extent but also safeguarding ecological connectivity across fragmented, human-modified landscapes. In South Africa, where roughly 80% of …
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Ecological controls on density, diversity and community structure of Polar Megabenthos
… communities as well as the diversity, densities and distributions of organisms present.<br/><br/>The deep (1000-1660m) Faroe-Shetland Channel harbours an Arctic fauna owing to cold deepwater intrusions from the Norwegian Sea. Despite the relatively low species richness of the megabenthos, …
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Woody Species Diversity, Forest and Site Productivity, Stumpage Value, and Carbon Sequestration of Forests on Mined Lands Reclaimed Prior to the Passage of the Surface Mining Control and Reclamation Act of 1977
The present state of forestry post mining land uses has prompted concern among researchers, landowners, and the public. Surface mines reclaimed to forests under the provision of the Surface Mining Control and Reclamation Act (SMCRA) may not achieve site productivity levels required by the law. …
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Functional diversity and mowing regime of flower strips as tools to support pollinators and to suppress weeds
… that should be able to fulfill worldwide demands of food, by optimizing ecosystem functions and services and reducing environmental impacts. One way to restore ecosystem functions and services in arable fields is creating flower strips in field margins. These flower strips enable wild plant …