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 5 of 5 for “"ant abundance"”.
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Granivory and Granivores in Native Grasslands and Agropyron Cristatum Stands in the Northern Great Plains
… the northern Great Plains because of the low plant biodiversity and high stability in A. cristatum stands. Small consumers have the potential to contribute to A. cristatum invasion and stability through granivory and herbivory. Little is known about ant species composition in the Northern Great …
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Global change drivers and their impact on herbaceous, ant, and grasshopper assemblages in an African semi-arid savanna
Assessments of the anthropogenic threats to savanna ecosystems are primarily focussed on land use change, bush encroachment, and biological invasions. There is, however, very little understanding as to the threats from atmospheric pollution. South Africa is the major emitter of CO2 on the African …
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The effect of habitat management on biodiversity and ecosystem functions in oil palm plantations in Sumatra, Indonesia
… in the world. The rapid expansion of oil palm plantations into millions of hectares of forest has resulted in severe losses of biodiversity and increased pollution. Management interventions to mitigate these impacts are clearly needed. Oil palm is capable of supporting a dense understory with …
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Ant diversity across an elevational gradient; functional versus taxonomic perspectives in the Soutpansberg Mountains, South Africa
… public awareness, a paucity of distribution and abundance data as well as their unknown way of life and sensitivity to habitat change. Environmental gradients are central in our attempt to address these shortfalls gauging these organisms' responses to environmental change and ultimately in the …
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Effects of fragmentation and invasion on ant communities
… uses such as pastures, sugarcane and oil palm plantations. The resulting remnants generally maintain lower species diversity relative to unfragmented forest, and the species composition of what remains often includes generalist and invasive species. Another causative agent of extinction are …