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Showing 1 to 17 of 17 for “"threespine stickleback"”.
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Divergence of Threespine Stickleback That Differ in Nuptial Coloration
… freshwater 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 …
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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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Plasticity of trait divergence in threespine stickleback (Gasterosteus aculeatus) from Lake Mývatn, Iceland
… benthic cladocerans 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
… my PhD research 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
… and social 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 …
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Variation in shoaling behavior in lake Mývatn threespine stickleback in relation to temperature and origin
… local adaptation 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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Relationships between phenotype, diet, and individual specialization of threespine stickleback (Gasterosteus aculeatus) in Lake Mývatn, Iceland
… of habitats 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 …
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Centromere identification and inactivation on a neo-Y chromosome fusion in threespine stickleback fish (Gasterosteus aculeatus)
… chromosome) 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 …
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Genetic differentiation of a sympatric lake-resident/anadromous species pair of threespine stickleback in Mud Lake, Alaska
… individuals 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 …
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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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Using parasite communities to discriminate between sympatric morphs of threespine sticklebacks (Gasterosteus aculeatus) in lake Þingvallavatn, Iceland
… isolation and sympatric speciation. The threespine stickleback (Gasterosteus aculeatus) is a good example of this phenomenon, where different morphs exhibit morphological variations that reflect environmental factors like predation pressure and diet. This study explores the potential of …
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Fishing For The Evolutionary Bases Of Female Ornamentation
… throat coloration—a male typical trait—in the threespine stickleback fish (Gasterosteus aculeatus), to test whether the evolution of the female trait might be attributed to adaptive or nonadaptive mechanisms. My results indicate that while male-typical throat color in females is associated with …
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Local adaptation to parasites and selection on major histocompatibility genes in ecologically divergent populations of three-spine stickleback (Gasterosteus aculeatus)
… eighteen ecologically variable populations of threespine stickleback (Gasterosteus aculeatus). Within populations infection appeared to reflect morphology/diet based exposure differences among individuals. Among populations, however, these patterns were absent or reversed, consistent with the …
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Conspicuous female ornamentation and male mate preference of Threespine Sticklebacks (Gasterosteus aculeatus)
… documented red female throat coloration in some threespine stickleback (Gasterosteus aculeatus) populations. Although female sticklebacks often exhibit a preference for red male throat coloration, the possibility of sexual selection on females has been little studied. Moreover, in those species …
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Dads matter: causes and consequences of plasticity in paternal care
… behavior might facilitate rapid adaptation in threespine stickleback fish (Gasterosteus aculeatus) via paternal effects. In threespine stickleback, the father is the sole provider of parental care, and parental care is necessary for offspring survival; without parental defense, nests would be …
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Proximate and Ultimate Consequences of Stressed-Induced Maternal, Paternal, and Joint Parental Effects in a Changing World
… I used a full-factorial design in which threespine stickleback (<em>Gasterosteus aculeatu</em>s) mothers, fathers, both, or neither were exposed to a model predator at developmentally appropriate times to test for predator-induced maternal, paternal, and joint parental effects on …