Michelle E. St. John
University of California, Berkeley
14 Papers
27 Citations
Michelle E. St. John is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Ecological niche & Population. The author has an hindex of 5, co-authored 11 publications. Previous affiliations of Michelle E. St. John include University of Illinois at Urbana–Champaign & Museum of Vertebrate Zoology.
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Papers
A vertebrate adaptive radiation is assembled from an ancient and disjunct spatiotemporal landscape.
Emilie J. Richards,Joseph A. McGirr,Jeremy Wang,Michelle E. St. John,Jelmer W Poelstra,Maria J Solano,Delaney C O'Connell,Bruce J. Turner,Christopher Martin +8 more
TL;DR: In this article, the authors investigated the origins and stages of vertebrate adaptive radiation and reconstructed the spatial and temporal histories of adaptive alleles underlying major phenotypic axes of diversification from the genomes of 202 Caribbean pupfishes.
The behavioral origins of novelty: did increased aggression lead to scale-eating in pupfishes?
TL;DR: The evolution of a novel predatory trophic niche within a recent adaptive radiation does not have clear-cut behavioral origins as previously assumed, highlighting the multivariate nature of adaptation and the complex integration of behavior with other phenotypic traits.
Oral shelling within an adaptive radiation of pupfishes: Testing the adaptive function of a novel nasal protrusion and behavioural preference.
TL;DR: It is suggested that nasal protrusion may increase feeding efficiency, act as a sensory organ, or is a sexually selected trait, and that a strong feeding preference may be most important for oral shelling.
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Major stages of vertebrate adaptive radiation are assembled from a disparate spatiotemporal landscape
Emilie J. Richards,Emilie J. Richards,Joseph A. McGirr,Jeremy Wang,Michelle E. St. John,Michelle E. St. John,Jelmer W. Poelstra,Maria J Solano,Delany C O'Connell,Bruce J. Turner,Christopher Martin,Christopher Martin +11 more
TL;DR: This work reconstructed the spatial and temporal histories of genetic variants underlying major phenotypic axes of diversification from the genomes of 202 Caribbean pupfishes to provide clear support for two longstanding hypotheses about adaptive radiation and demonstrate how ancient alleles maintained for millennia in distinct environmental refugia can be assembled into new adaptive combinations.
Asymmetric reinforcement in Lucania killifish: assessing reproductive isolation when both sexes choose.
TL;DR: Results indicate that both asymmetric postzygotic isolation and the traditional sex-specific costs to preference likely affect the nature of selection on conspecific preferences and target traits.