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 “"Enemy release"”.
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The effects of an invasive species on the structure of native ecosystems
… sites. Although A. modestus was found experience enemy release in comparison to native barnacle species, this did not promote reproductive success or abundance. A. modestus was recorded to be widespread but not dominant at its northern and southern limits. Different factors may be controlling the …
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Exploring the mechanisms and impacts of plant invasions in grasslands
… no effect. There was no evidence for belowground enemy release in driving the spread of three widespread invasive grasses in New Zealand, although biogeographic differences in soil biota influenced invasive species responses to nutrient enrichment. There was strong evidence that belowground …
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Ecological consequences of indigenous and non-indigenous freshwater fish parasites.
… fishes across these ranges, the issue of ‘enemy release’ and ‘parasite acquisition’ in introduced freshwater fishes, and the ecological consequences of infection by some native parasites for native freshwater fish. When the freshwater fish chub (Squalius cephalus) was exposed to different …
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Trematode parasites of the mudsnail Ilyanassa obsoleta: An analysis of parasite communities at different scales
… conform to the pattern predicted by the enemy release hypothesis. The ecological factors that contribute to the establishment of specific L. obsoleta trematodes in the introduced range are considered.</p><p>A regional scale analysis of I. obsoleta trematode communities is presented in …
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Invasion Routes and Evolution of Brook Stickleback (Culaea inconstans) in Eastern Washington
… for conducting unique natural experiments. The enemy release hypothesis suggests that the success of invasive species may be due to the lack of coevolved predators, pathogens, and parasites in its introduced range. Under the enemy release hypothesis organisms can invest less energy in defensive …
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SURVIVAL IN THE FOREST UNDERSTORY: RESILIENCE AND RESISTANCE TO DAMAGE IN NATIVE AND INVASIVE WOODY PLANTS
… that invasive species do not benefit from enemy release. In the third chapter, I compared growth and survival responses to varying levels of defoliation in two pairs of native and invasive tree species in the field. Over three growing seasons, I subjected saplings of each species to each of …
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MECHANISMS OF SUCCESS: PLANT-HERBIVORE INTERACTIONS AND THE INVASION OF NON-NATIVE LONICERA SPECIES IN NORTH AMERICA
… but dominant in their novel range including the enemy release and novel weapons hypotheses. Additionally, many invasive species are characterized as being tolerant and/or resistant to both damage and limitations in abiotic resources. These hypotheses are based on plant-plant, plant-microbial, and …