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9 results for “stickleback invasion”
No signs of behavioral evolution of threespine stickleback following northern pike invasion
<p>Invasive predators often impose devastating selection pressures on native prey species. However, their effects can be regionally-dependent and influenced by local ecological conditions of their invaded habitats. Evolved behavioral phenotypes are important mechanisms by which prey adapt to the presence of novel predators. Here, we asked how behavior and behavioral plasticity of threespine stickleback (Gasterosteus aculeatus) populations have evolved following the introduction of the invasive predator, northern pike (Esox lucius). We examined the behavior of F1 offspring generated from three pike-free and three pike-invaded populations, and measured how stickleback activity and refuge use behaviors, and their plasticity, have evolved following pike introduction. To evaluate plasticity, we exposed juvenile stickleback to predator cues during their first year of development, and then evaluated how this repeated exposure influenced behavioral responses to an artificial predation event. We found no overarching effect of pike in either evolved behaviors or behavioral plasticity, and no evidence for the presence of developmental plasticity. Furthermore, we that depending on the phenotype, pike-invaded stickleback populations have either more, or less among-population variation than pike-free populations. Our results suggest that evolution in response to an invasive predator may be hidden by local adaptation when enough populations are studied.</p>
Data from: Repeated and predictable patterns of ecotypic differentiation during a biological invasion: lake-stream divergence in parapatric Swiss stickleback
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Data from: Hybridization between distant lineages increases adaptive variation during a biological invasion: stickleback in Switzerland
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No signs of behavioral evolution of threespine stickleback following northern pike invasion
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Supplementary material 2 from: Dahms C, Roch S, Elmer KR, Ros A, Brinker A, Jacobs A (2024) Intra-lake origin and rapid expansion of invasive pelagic three-spined stickleback in Lake Constance. NeoBiota 92: 259-280. https://doi.org/10.3897/neobiota.92.117430
Sample information
Supplementary material 1 from: Dahms C, Roch S, Elmer KR, Ros A, Brinker A, Jacobs A (2024) Intra-lake origin and rapid expansion of invasive pelagic three-spined stickleback in Lake Constance. NeoBiota 92: 259-280. https://doi.org/10.3897/neobiota.92.117430
Supplementary methods and results
A behavioral syndrome linking boldness and flexibility facilitates invasion success in sticklebacks
<p>Understanding the factors that allow a species to expand their range and adapt to changing habitats is essential for mitigating anthropogenic change. We evaluated how behavior and cognition facilitate colonization of new environments and evolve post establishment during natural biological invasions. Marine threespined sticklebacks are expert colonists with a penchant for invading freshwater environments and rapidly adapting to them. However, the role of behavior in facilitating rapid adaptation in this system has received little attention. By rearing replicate populations of sticklebacks under common garden conditions in the lab, we tested the hypothesis that boldness is favored in dispersers and that neophilia and flexibility are favored in recently-arrived immigrants. We found that dispersing populations comprised bold individuals, while sticklebacks from the invaded region were flexible in their behavior. Moreover, boldness and flexibility were negatively correlated with each another at the individual, family and population levels. Multiple lines of evidence suggest that there is a heritable component to boldness and flexibility, therefore their divergence is likely to be evolutionary in origin. If boldness is favored in invaders during the initial dispersal stage, while flexibility is favored in recent immigrants during the establishment stage, then the link between boldness and flexibility could generate positive correlations between successes during both the dispersal and establishment stages, and therefore play a key role in facilitating colonization success in this important model organism.</p>
Supplementary material 1 from: Gugele SM, Baer J, Spießl C, Yohannes E, Blumenshine S, Roberts BJ, Mota-Ferreira MR, Brinker A (2023) Stable isotope values and trophic analysis of invasive three-spined stickleback in Upper Lake Constance points to significant piscivory. NeoBiota 87: 73-102. https://doi.org/10.3897/neobiota.87.100355
Supplementary information
A behavioral syndrome linking boldness and flexibility facilitates invasion success in sticklebacks
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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