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 8 of 8 for “"shrub encroachment"”.
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Sustainable management of semi-arid African savannas under environmental and political change
… which mostly occurs in form of woody plant encroachment. At this, I aim at finding viable sustainable management strategies and improving the general understanding of semi-arid savanna vegetation dynamics under conditions of extensive livestock production. Moreover, the influence of external …
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Pattern and process at a desert grassland-shrubland ecotone
Over the past century, shrub encroachment has occurred in desert grasslands all over the American Southwest. In the Northern Chihuahuan desert, most encroachment was due to creosotebush (Larrea tridentata [Sessé & Moc. ex DC.] Coville) expanding into black grama (Bouteloua eriopoda [Torr.] Torr.) …
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Vegetation structure and inferred patterns of functional group attrition in a shrub encroached old field and tallgrass prairie mosaic
Tallgrass prairie is an endangered ecosystem and encroachment by woody species threatens many remnants. Insights are needed into the differences in diversity and species and functional group composition along a gradient of woody encroachment to help gauge restoration potential and gain insights …
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The hydrological and limnological characterization of two Canadian water catchments sensitive to anthropogenic influences: Crawford Lake, Ontario and Old Crow Flats, Yukon
… slumping, rapid thermokarst lake drainage, shrub encroachment, water level changes, and forest fires. Long-term analysis (2007 –2009 and 2015 – 2019 CE) of the hydrological response to these landscape changes have shown trends of increasing connectivity between the perched lakes and incised …
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The effects of shrub removal and grazing on vegetation and soils in a shrub-encroached Australian woodland
… and climate. Areas heavily encroached by shrubs are generally regarded as degraded, and this view is largely based on the fact that shrubs reduce pastoral productivity. There have been many attempts to remove shrubs in pastoral systems using chemical, biological and mechanical techniques …
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The impact of overgrazing on reptile diversity and population dynamics of Pedioplanis l. lineoocellata in the southern Kalahari
Die Vegetationskomposition und –struktur, beispielsweise die unterschiedliche Architektur von Bäumen, Sträuchern, Gräsern und Kräutern, bietet ein großes Spektrum an Habitaten und Nischen, die wiederum eine hohe Tierdiversität in den Savannensystemen des südlichen Afrikas ermöglichen. Dieses …
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Evaluation of shrub removal effects on understory richness and diversity in a native grassland
… ecosystem in North America, and woody plant encroachment is one of the leading stressors facing prairie remnants. Insights into factors that predict vulnerability and resistance to invasion and information concerning the most effective treatment combinations are needed to preserve and restore …
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Dryland state transitions, trophic interactions, and the restoration of a keystone species
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms