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.
Results
Showing 1 to 20 of 587 for “"Ecology and Evolutionary Biology"”.
-
Genomic characterization of the italian wolf (Canis lupus): the genes involved in black coat colour determination and application of microarray technique for snps detection.
… it focuses on two research lines. On one hand, we focalised on melanism in wolf in order to isolate a mutation related with black coat colour in canids. With several reported black individuals (an exception at European level), the Italian wolf population constituted a challenging research …
-
Super-Organismal Effects Of A Widespread Insect Endosymbiotic Bacteria
… such as colony members, external environment, and possibly the symbiotic bacteria that live within individual colony members. While symbiotic microbes are well-known to manipulate the physiology, ecology and evolutionary biology of their solitary hosts, we have limited understanding of their …
-
Population processes and patterns across scales
A major challenge in ecology and evolutionary biology is to understand how biological patterns at one scale are generated by a multitude of processes operating at various scales. Two approaches are especially powerful at linking these processes to patterns: mathematical modeling and using a citizen …
-
INDIVIDUAL AND ENVIRONMENTAL EFFECTS ON LIFE HISTORY TRAIT EXPRESSION IN NAZCA BOOBIES
… this dissertation, I use phenotypic data on age and life-history trait expression from long-lived Nazca boobies (Sula granti, a seabird) breeding in Galápagos to understand cause and effect relationships underlying variation in reproduction, survival, and ageing patterns. In the first chapter, …
-
Ecological and evolutionary effects of dispersal on freshwater zooplankton
A recent focus on contemporary evolution and the connections between communities has sought to more closely integrate the fields of ecology and evolutionary biology. Studies of coevolutionary dynamics, life history evolution, and rapid local adaptation demonstrate that ecological circumstances can …
-
Intra-species genomic variations in hydrogen-oxidising bacteria is delineated by horizontal gene flow
Species are the fundamental unit of ecology and evolutionary biology. However, there is no universal definition of a species that spans all domains of life. Eukaryotic species are traditionally defined through reproductive isolation, where reproductive barriers result in adaptive traits being …
-
Assessing the Live Bait Industry and the Ecological Status of Invasive Cyprinodontiformes (Sheepshead minnow: Cyprinodon variegatus and Gulf killifish: Fundulus grandis) in Texas Streams
… Here, I investigated the pathway of introduction and ecological impacts of the sheepshead minnow (<em>C. variegatus</em>) and the gulf killifish (<em>F. grandis</em>). Both species were thought to have been introduced into inland Texas waters via bait-bucket releases and have caused native …
-
Investigating the photosynthesis of Symbiodinium in Caribbean gorgonian corals
… invertebrates, including scleractinian corals and octocorals. Studies examining the symbiosis between Caribbean octocorals and Symbiodinium are sparse, even though octocorals blanket the landscape of Caribbean coral reefs. Here, I compared the photosynthetic characteristics of Symbiodinium in …
-
Stealing, scavenging, or storing? Breeding behaviors of unisexual Ambystoma salamanders
<p>The unisexual <em>Ambystoma</em> salamander complex is a lineage of all-female salamanders that use a unique form of reproduction: kleptogenesis. Kleptogenesis requires sperm from male salamanders of co-occurring sexual species, potentially putting unisexual and sexual females in breeding …
-
Influence of social cues on the initiation of migratory behavior in red crossbills (Loxia curvirostra)
… fine-tune the initiation of migratory behavior and physiology. Red crossbills (<em>Loxia curvirostra</em>) are gregarious, nomadic migrants that make seasonal movements to find patchily-distributed conifer seeds and are responsive to social cues in the context of food. I test the hypothesis that …
-
Impacts of Vegetation Density and Distance from the High Tide Line on Raccoon Predation of Diamondback Terrapin Nests in Jamaica Bay, NY – A preliminary study
… terrapin</em>) have been culturally and economically important since at least the nineteenth century. However, due to overharvesting, this became a species of conservation concern. While extensive data are available to describe its natural history, some conditions that impact nest …
Page 1 of 30