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 20 of 106 for “"Generalists"”.
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Structured model learning for adaptive robot generalists
… the grand challenge is to create adaptive robot generalists: systems that can learn diverse manipulation skills, transfer knowledge across tasks and embodiments, and operate robustly under varying sensing conditions. However, robotic manipulation in such unstructured environments requires …
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How generalists function as a community of practice in a community college one-stop student service center
… desk by student service personnel who act as generalists. These professionals help students gain a richer and deeper understanding of what they need to know and do to be successful (Beede, 1999; Day & Pitts, 2002; Javaheripour, 2009; Shugart & Romano, 2008; Walters, 2003). However little is …
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Experimental Evolution with Escherichia coli in Diverse Resource Environments: are 'Jacks of all Trades' truly 'Masters' of None?
… alone (specialists), or in varying combinations (generalists). I found that all populations had significantly increased their fitness in both glucose and lactose, though the rate and magnitude of the increases differed. The generalists were masters of all trades for the first 4,000 generations; …
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Character displacement in Burkholderia biofilm communities and the effect of adaptive history on the evolution of niche breadth
… generated by niche-specific adaptation; however, generalists may be adaptable in many habitats, which would make them good pioneer species for colonization. We investigated the role of character displacement and facilitation in maintaining diversity in a synergistic, biofilm-adapted population of …
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A case of omnivory: an iolinid predatory mite can feed on a fungus, the plant and a pest on tomatoes
… control, and the use of specialists or generalists has been extensively discussed since the formal adoption of biological control as a pest management technique in 1889. For a long time, specialist natural enemies were considered superior to generalists and were therefore more widely …
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The relationship between niche breadth and geographic range size in African Horseshoe bats (Rhinolophidae, Chiroptera)
According to Brown's hypothesis, generalists have high niche breadth and can tolerate a wide variety of environmental conditions resulting in large geographic range sizes. Conversely, specialists have low niche breadth and small range sizes. I tested this hypothesis using African Horseshoe bats to …
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Diet Breadth Evolution and Diversification of a Generalist Insect Herbivore
… herbivores to be specialists and others to be generalists are still unclear. It is known that the selective forces from natural enemies (top-down) and the host plants (bottom-up) influence an herbivore's diet breadth. In my meta-analysis evaluating the relative important of top-down and …
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Hospital-based generalist social workers’ views of what facilitates or hinders collaboration with specialist palliative care social workers : a grounded theory
… are present. Collaboration is facilitated when generalists’ perceptions of trust are high, pertinent information is communicated in a time-sensitive manner, and a flexible approach to roles is taken. Conclusion: Trust is increased when generalist social workers’ perceive the specialist …
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Competition and Community Interactions of Two Generalist Herbivores
… specialists, and those studies that do include generalists tend to rear them on agricultural crops. My project examines species interactions at three levels: intraspecific competition (within species), interspecific competition (between species), and ecosystem engineering effects at the …
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THE ROLE OF SOCIAL MEDIA AND DIGITAL INFLUENCERS IN NEW DYNAMICS OF YOUTH POLITICAL ENGAGEMENT
… Political Specialists, Intensive Political Generalists, Sporadic Political Specialists, and Sporadic Political Generalists. This framework highlights how political influence extends across the spectrum of digital creators, who engage with public issues in diverse ways and may assume …
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The Virginia Stocked Trout Program: An Evaluation of Current and Former Anglers
… of stocked trout anglers: traditional anglers, generalists, occasional specialists, and specialists. Traditional anglers constituted the largest group, comprised of those who fished with bait, harvested the stocked trout they caught, fished more frequently than other groups, had low centrality, …
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The Role of Resource Predictability in the Metapopulation Dynamics of Insects
… species exhibited greater occupancy than generalists, but its less preferred host tree appeared to serve as a sink that created greater fluctuations in the specialist metapopulation than in those of the generalist species. Thus, generalists occurred on a lower proportion of usable trees …
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Macroinvertebrate community of ecology of lowland, subtropical streams in Louisiana
… (37%) appeared to be dissolved oxygen generalists. Further, survey data suggested more than 50% of collected macroinvertebrates also may be generalists with regard to other abiotic factors, but did demonstrate some affinity for woody debris. The single stream biotic disturbance appeared …
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Investigating Causal Relationships between Global Change and Insect Interaction Networks: Insights into Dietary Specialization, Interaction Diversity, and Disturbances
… that specialists are locally more abundant than generalists, and generalists occupy more space across all elevations and habitats. At a larger scale, I examined latitudinal gradients in network specialization and interaction diversity using long-term plant-caterpillar-parasitoid datasets from …
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'Islands' in an island: multiscale effects of forest fragmentation on lowland forest birds in Taiwan
… of two functional groups (forest specialists and generalists) to area and isolation effects Furthermore, I examine the relative influences of environmental variables at regional, landscape and local scales on avian community indices and composition in northern Taiwan with a hierarchical multiscale …
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Do K, 1, 2 teachers who participated in a year long math course have less teacher math anxiety than those who did not participate?
… teachers involved in the study were considered generalists at the elementary level. Through use of the McAnallen Anxiety in Mathematics Teaching Survey, the study provided data that could be used to inform professional development training for pre-service and in-service elementary teachers. The …
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ECOLOGY AND CONSERVATION OF BUTTERFLIES IN A TRANSFORMED TROPICAL LANDSCAPE
… native flower species in their diet than flower generalists and tended to be forest dependent. Using capture-mark-release protocol, we showed that dispersal distances of recaptured species in forests was significantly greater than in the urban habitats. Finally, our host plant enrichment …
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Assessing potential navigation impacts to the Kanawha river ecosystem: a modeling approach
… categorized into six trophic groups. Trophic generalists (omnivores and herbivore/detritivores) consumed a variety of foods including considerable detritus. These groups accounted for 73 to 83% of total ichthyomass and 81% of total adult production. Total fish consumption at the more riverine …
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Land use, food production, and the future of tropical forest species in Ghana
… these systems and forests, with widespread generalists replacing narrowly endemic forest-dependent species. Species most dependent on forest as a natural habitat, those with smaller global ranges and those of conservation concern showed least tolerance of habitat modification. For virtually …
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GROUND BEETLES (COLEOPTERA: CARABIDAE) AS BIODIVERSITY INDICATORS FOR AGE STRUCTURE IN PIEDMONT FORESTS?
… Although most carabid species can be considered generalists, occurring in all or most of the forest age classes, carabid species composition still varied significantly across classes. The results of non-metric multidimensional scaling (NMDS) and Detrended Correspondence Analysis (DCA) ordination …
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