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Showing 1 to 20 of 42 for “"stickleback"”.
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Cognitive variation in threespined stickleback (Gasterosteus aculeatus)
… variation in cognition in threespined sticklebacks. This is done from four different angles. First, I tested the hypothesis that learning is part of an overall suite of correlated traits related to how an individual copes with changes in the environment, and that trade-offs between …
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Behavioral type - environment correlations in three-spined stickleback
… and ecological processes in the three-spined stickleback (Gasterosteus aculeatus). In the first chapter I documented two such behavioral type-environment correlations, one between boldness and social environment and the other between exploratory behavior and habitat type. In the second chapter …
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Divergence of Threespine Stickleback That Differ in Nuptial Coloration
… color morphs, red and black, of the threespine stickleback fish (Gasterosteus aculeatus) from the northwest United States, in which a shift from red to black nuptial coloration occurred in several locations following glacial retreat. We measured phenotypic variation in a suite of traits and used …
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Life history of marine threespine stickleback in Oyster Lagoon, British Columbia
Marine populations of three spine sticklebacks (Gasterosteus aculeatus) are possible ancestors of the many of the divergent freshwater populations of this species found along the glaciated coast of British Columbia. Until this study, the life history and reproductive behaviours of marine population …
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Invasion Routes and Evolution of Brook Stickleback (Culaea inconstans) in Eastern Washington
… native ecosystems. In eastern Washington brook stickleback (Culaea inconstans) is an important invasive species, especially at Turnbull National Wildlife Refuge, where they compete with waterfowl for food resources and are associated with declines in habitat quality. Understanding the invasion …
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The genetic basis of behavioral divergence in three-spined stickleback (Gasterosteus aculeatus)
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
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Plasticity of trait divergence in threespine stickleback (Gasterosteus aculeatus) from Lake Mývatn, Iceland
… that are important prey for threespine stickleback (Gasterosteus aculeatus). As adaptive divergence in response to natural selection is frequently related to diet and/or habitat use, the spatial and temporal variation in prey type and abundance in lake Mývatn may facilitate …
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The neuroendocrine and molecular mechanisms underlying stress-induced maternal effects in the threespine stickleback
… I studied maternal effects in threespine sticklebacks (Gasterosteus aculeatus), with the goal to describe a maternal effect on the physiological stress response and the underlying molecular mechanisms by which the non-genetic maternal effects on physiology and behavior occur in …
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The neural and hormonal basis of the loss of parental care in threespine stickleback
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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A multipronged approach to understanding how genes contribute to social behavior in threespine stickleback
… behavior in the emerging model system threespine stickleback (G. aculeatus), we needed to develop molecular techniques and simplify the already robust behavioral assays. Threespine sticklebacks are a classic system for the study of behavior, ecology, and evolution. A growing number of quantitative …
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Variation in shoaling behavior in lake Mývatn threespine stickleback in relation to temperature and origin
… and population divergence. The threespine stickleback (Gasterosteus aculeatus) in Lake Mývatn is an ideal candidate to study such local adaptations. Threespine stickleback diverge in their morphology and physiology across the lake, partly in relation to habitat diversity, e.g. in …
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Assessing Brook Stickleback (Culaea inconstans) as a bioindicator for endocrine disrupting compounds in aquatic environments
… EDCs with (anti-)androgenic activity. Male sticklebacks build nests using spiggin, an androgen-responsive glycoprotein, which can be used to assess (anti-)androgenic exposure. EDC assessment in the field using threespine stickleback and the spiggin biomarker is limited to coastal and …
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Invasive fish effects on the invertebrate constituents of wetland communities
… waterfowl using stable isotope analysis. Brook stickleback (Culaea inconstans) and pumpkinseed (Lipomis gibbosus) pose a potentially growing threat to temperate Pacific drainages of North America due to their ability to outcompete native fauna. Our study compares and contrasts the invertebrate …
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Relationships between phenotype, diet, and individual specialization of threespine stickleback (Gasterosteus aculeatus) in Lake Mývatn, Iceland
… and strong temporal dynamics. The threespine stickleback (Gasterosteus aculeatus) population of the lake has been monitored for decades. Within the population is high gene flow, the phenotype is variable, the population fluctuates in size across years, and variation can be seen in diet. …
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Centromere identification and inactivation on a neo-Y chromosome fusion in threespine stickleback fish (Gasterosteus aculeatus)
… that has been fixed in Japan Sea threespine stickleback fish (Gasterosteus nipponicus). In order to characterize the Japan Sea neo-Y chromosome, I first needed to identify the threespine stickleback centromeric DNA sequence. Centromere sequences exist as gaps in many genome assemblies due to …
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Sensory exploitation and condition indication may explain red pelvic spines in the brook stickleback Culaea inconstans
… Turnbull National Wildlife Refuge (TNWR) brook stickleback (Cu!aea inconstans) evolve to exploit a preexisting sensory bias for red prey, thus helping males draw females to the nest? Or, did it evolve as an intersexual signal indicating male condition to females? Methods: I recorded the …
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Measuring variation in body morphology and life history traits in Brook Stickleback (Culaea inconstans), Eastern Washington, USA
… to migrate/disperse, among other factors. Brook stickleback (Culaea inconstans) have been a concern in eastern Washington since 1999 when they were discovered in water bodies on Turnbull National Wildlife Refuge. The purpose of this project was to describe potential variation in body morphology …
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Genetic differentiation of a sympatric lake-resident/anadromous species pair of threespine stickleback in Mud Lake, Alaska
… of closely related species. The threespine stickleback, Gasterosteus aculeatus, a fish species complex found in marine and coastal freshwater environments of the northern hemisphere, has become a model species used to study speciation. Many morphological and genetically divergent forms …
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Impacts of the invasive Brook Stickleback (Culaea inconstans) on wandering garter snake (Thamnophis elegans vagrans) fitness, feeding behavior and diet
… index, recorded garter snakes feeding on brook stickleback in the lab and analyzed the presence/absence of prey DNA in their feces. While snakes from the stickleback-present site had shorter SVL and lower mass, there was not a significant difference in fitness. In the laboratory feeding …
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Determining the effects of non-native brook stickleback (Cualea inconstans) on the lentic systems at Turnbull National Wildlife Refuge, Cheney, WA
… ephemeral/temporary habitats. Non-native brook stickleback fishes (Culaea inconstans) were first documented on the Turnbull National Wildlife Refuge (WA) in 1999 and are now present in many portions of the refuge. The consequences of their presence on the refuge's perennial/permanent and …
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