EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/23/2018 | 9:00 AM - 9:15 AM | PREDICTED MORPHOLOGIC RESPONSES TO CLIMATE-INDUCED HYDROLOGIC CHANGES VARY AMONG POPULATIONS OF FRESHWATER FISHES | 410 A
PREDICTED MORPHOLOGIC RESPONSES TO CLIMATE-INDUCED HYDROLOGIC CHANGES VARY AMONG POPULATIONS OF FRESHWATER FISHES
Predicting future changes in habitat-associated fitness traits is an important step in understanding the ecological and evolutionary consequences of environmental change in freshwater systems. However, models of phenotypic responses to future climate change typically assume populations will respond similarly across the range of a species, while local adaptation and spatial variation in environmental changes are rarely considered. We quantified phenotype-environment associations between body shape and streamflow variables among populations of six species of minnows (Cyprinidae) to generate models of phenotypic responses to future environmental change. We then used future streamflow estimates to predict the body shape within populations from 2070-2099, assuming the same phenotype-environment relationship. Species differed in the degree of morphological change expected under future streamflow conditions, and spatial patterns of divergence indicate that populations are not expected to respond uniformly across their range. Our findings demonstrate that species-specific ecology and spatial variation in environmental change underlies differences in the magnitude and directionality of phenotype-environment associations, and responses to climate change may vary markedly at both the species and population level.
- Fish
- Hydrology
- Trait
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Presenters/Authors
Kara Andres
(), Cornell University, kja68@cornell.edu;
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Huicheng Chien
(), SUNY New Paltz, chienh@newpaltz.edu;
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Jason Knouft
(), Saint Louis University, jason.knouft@slu.edu;
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