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 7 of 7 for “"Introduced ranges"”.
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An experimental demographic approach to exotic plant success: <b>Cynoglossum officinale</b> in its native and introduced ranges
… with different selective regimes where they are introduced. How these changed conditions influence individual life-history traits, and what particular factors spur increases in population abundance in the introduced versus native range, are not well understood. I conducted parallel experiments in …
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An experimental demographic approach to exotic plant success: <b>Cynoglossum officinale</b> in its native and introduced ranges
… with different selective regimes where they are introduced. How these changed conditions influence individual life-history traits, and what particular factors spur increases in population abundance in the introduced versus native range, are not well understood. I conducted parallel experiments in …
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Population genetics of the cichlid, Cynotilapia afra (Günther 1894), in its native and introduced ranges in Lake Malawi
… to reduce genetic variation of C. afra in the introduced range.2. The invasive scenario during the introduction followed a stepping stone pattern, or alternatively, it occurred as several independent introductions of C. afra in Lake Malawi National Park.3. Introgressive hybridisation between C. …
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An Experimental Investigation of Life History Variation in Native and Introduced Populations of <em>Silene latifolia</em>
… explore the biology of species in native and introduced ranges. The goal of my thesis is to determine if an invasive plant has had a shift in life history traits after introduction. The study species was <em>Silene latifolia</em>. Also, when organisms leaves their native range, they also …
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Exploring the mechanisms and impacts of plant invasions in grasslands
Non-native plant species are being introduced to ecosystems worldwide at an unprecedented rate. Many of these non-native species become invasive by spreading across their introduced ranges and impacting native biota, ecosystems and human societies. However, the impacts of the majority of non-native …
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Patterns of association in a co-introduced insect herbivore and parasitoid wasp
… areas. By tracing the invasion routes of co-introduced species that share a close evolutionary history in their native range, I address the relative importance of long-term historical associations versus ecological fitting in community assembly. In the context of invasion ecology, ecological …
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The consequences and implications of ecology on body size distributions in social insects
… body size in polymorphic invasive ant species. Introduced species are ideal for examining the role of ecological variation on investment into worker size as they often encounter vastly different ecological conditions throughout their introduced ranges (e.g. fewer competitors and access to …