EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/25/2021 | 2:00 PM - 3:30 PM | Larval morphological variation in the giant salmonfly Pteronarcys californica | Virtual Platform
Larval morphological variation in the giant salmonfly Pteronarcys californica
While DNA-based analyses are increasingly being used to assess population genetic structure and infer biodiversity of aquatic invertebrates, the vast majority of bioassessment programs and biodiversity surveys still reply upon morphology-based identifications. Here we report the results of an investigation into morphological variation that supports previous findings of distinct clades with low gene flow from a study of population genetic structure of the giant salmonfly (Pteronarcys californica), a large-bodied stonefly distributed throughout western North America. Morphometric analysis of the larval pronotum indicates significant differences between populations south of San Francisco Bay in Central California and all other sampled populations from the western U.S., especially with regards to the size and shape of the pronotal projections. This morphological variation supports the findings of previous research on population genetic structure in P. californica, which similarly identified a deep phylogenetic split north and south of the SF Bay area. Taken together, the morphological and genetic data suggest that the isolated populations in habitats south of San Francisco Bay, which face vulnerability related to drought, fire, and climate change, should represent an important conservation concern for aquatic biodiversity.
- Conservation
- Stream
- Aquatic–terrestrial biodiversity
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Presenters/Authors
Adersin Vartanyan
(), CSU Stanislaus, avartanyan@csustan.edu;
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Taylor Bannemer
(), CSU Stanislaus, tbannemer@csustan.edu;
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Evelyn Vega Gonzalez
(), CSU Stanislaus, evega4@csustan.edu;
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Jasmin Dominguez Cervantes
(), CSU Stanislaus, jdominguezcervantes@csustan.edu;
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Karima Jawad
(), CSU Stanislaus, kjawad@csustan.edu;
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Michael Peterson
(), California Department of Insurance, petersmg@berkeley.edu;
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Matthew Cover
(), California State University, Stanislaus, mcover@csustan.edu;
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