2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/23/2019 | 9:15 AM - 9:30 AM | DORMANCY IN METACOMMUNITIES: WHEN CAN TEMPORAL DISPERSAL MAINTAIN DIVERSITY IN VARIABLE LANDSCAPES? | 151 G
DORMANCY IN METACOMMUNITIES: WHEN CAN TEMPORAL DISPERSAL MAINTAIN DIVERSITY IN VARIABLE LANDSCAPES?
Metacommunity ecology has improved our understanding of how niche selection, spatial heterogeneity, and dispersal influence community structure. However, the focus on spatial dispersal overlooks the capabilities of many species to disperse through time via the process of dormancy. We propose a framework for integrating spatial and temporal dispersal mechanisms into metacommunity ecology. Using simulation models, we show that dormancy can maintain regional scale biodiversity in dynamic landscapes, especially when dispersal is limiting relative to the rate of environmental variability. The effects of dormancy on local and regional diversity also depend on the covariation between dispersal and dormancy. When dispersal and dormancy positively covary, dormancy can lower the rate of dispersal needed to homogenize metacommunity diversity. When dispersal and dormancy negatively covary, dormancy can maintain higher local and regional diversity, but cannot buffer against the homogenizing effects of high dispersal. Our models indicate that dormancy may be an overlooked component of metacommunity ecology that can influence spatial and temporal patterns of biodiversity in a changing world.
- Distribution
- Biodiversity
- Spatial
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Presenters/Authors
Nathan Wisnoski
(), Indiana University, wisnoski@indiana.edu;
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Mathew Leibold
(), University of Florida, mleibold@ufl.edu;
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Jay Lennon
(), Indiana University, lennonj@indiana.edu;
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