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Rapid differentiation of plasticity in life history and morphology during invasive range expansion and concurrent local adaptation in the horned beetle Onthophagus taurus

Citation

Rohner, Patrick T.; Moczek, Armin P. (2020), Rapid differentiation of plasticity in life history and morphology during invasive range expansion and concurrent local adaptation in the horned beetle Onthophagus taurus, Dryad, Dataset, https://doi.org/10.5061/dryad.x69p8czfv

Abstract

Understanding the interplay between genetic differentiation, ancestral plasticity, and the evolution of plasticity during adaptation to environmental variation is critical to predict populations’ responses to environmental change. However, the role of plasticity in rapid adaptation in nature remains poorly understood. We here use the invasion of the horned beetle Onthophagus taurus in the United States during the last half century to study the contribution of ancestral plasticity and post-invasion evolution of plastic responses in rapid population differentiation. We document latitudinal variation in life history and morphology, including genetic compensation in development time and body size, likely adaptive responses to seasonal constraints in the North. However, clinal variation in development time and size was strongly dependent on rearing temperature, suggesting that population differentiation in plasticity played a critical role in successful adaptation on ecological timescales. Clinal variation in wing shape was independent of ancestral plasticity, but correlated with derived plasticity, consistent with evolutionary interdependence. In contrast, clinal variation in tibia shape aligned poorly with thermal plasticity. Overall, this study suggests that post-invasion evolution of plasticity contributed to range expansions and concurrent adaptation to novel climatic conditions.

Methods

Beetles used in this study were reared in a 'common garden' environment. See the associated publications for details on rearing method and standardisaton of environmental parameters.

Usage Notes

All raw data (landmarks, measurements, etc) are provided in the corresponding file. The position of landmarks is indicated in separate plots for each structure.

Missing values are indicated with "NA" (i.e. Not Available)

Funding

Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Award: P2ZHP3_184003

National Science Foundation, Award: IOS 1256689

National Science Foundation, Award: 1901680

John Templeton Foundation, Award: 61369