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Abstract Detail



On models and methods pertaining to plant reproduction

Miller, Thomas [1].

Life history evolution under climate change and its influence on the population dynamics of a long-lived plant.

Delayed reproduction is thought to evolve due to trade-offs between current reproductive output and future reproductive potential. Because such costs of reproduction may vary with environmental context, global environmental change may impose novel selection pressures on plant reproductive strategies. This talk explores the evolution of delayed reproduction and its influence on population dynamics in a long-lived plant (Orchis purpurea) under climate change. We use long-term demographic data to parameterize a climate-dependent, stochastic integral projection model. We identify evolutionarily stable strategies for the size at reproduction, given trade-offs between the benefits of early reproduction and its demographic cost (reduced growth). We show how realistic scenarios for future climate change will change selection on reproductive strategies. Finally, we explore the eco-evolutionary dynamics of life history adaptation, asking whether rapid evolution can modify the influence of climate change on plant population dynamics.


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1 - Rice University, Ecology and Evolutionary Biology, 6100 Main St., Houston, TX, 77005, USA

Keywords:
Demography
cost of reproduction
orchid
integral projection model.

Presentation Type: Symposium or Colloquium Presentation
Session: SY09
Location: Summit/Boise Centre
Date: Wednesday, July 30th, 2014
Time: 10:15 AM
Number: SY09006
Abstract ID:532
Candidate for Awards:None


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