Between-site differences in the scale of dispersal and gene flow in red oak.

PloS One
Emily V Moran, James S Clark

Abstract

Nut-bearing trees, including oaks (Quercus spp.), are considered to be highly dispersal limited, leading to concerns about their ability to colonize new sites or migrate in response to climate change. However, estimating seed dispersal is challenging in species that are secondarily dispersed by animals, and differences in disperser abundance or behavior could lead to large spatio-temporal variation in dispersal ability. Parentage and dispersal analyses combining genetic and ecological data provide accurate estimates of current dispersal, while spatial genetic structure (SGS) can shed light on past patterns of dispersal and establishment. In this study, we estimate seed and pollen dispersal and parentage for two mixed-species red oak populations using a hierarchical bayesian approach. We compare these results to those of a genetic ML parentage model. We also test whether observed patterns of SGS in three size cohorts are consistent with known site history and current dispersal patterns. We find that, while pollen dispersal is extensive at both sites, the scale of seed dispersal differs substantially. Parentage results differ between models due to additional data included in bayesian model and differing genotyping error assumptio...Continue Reading

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Citations

Feb 25, 2015·Movement Ecology·Juan J Robledo-ArnuncioLuis Santamaría
Jan 24, 2014·PloS One·Sophie GerberAntoine Kremer
Feb 15, 2020·Ecological Applications : a Publication of the Ecological Society of America·Julie R EttersonLaura C Kavajecz
Oct 4, 2019·AoB Plants·Haldre S RogersJenny Zambrano
Apr 15, 2014·Molecular Ecology·Marina C CôrtesEmilio M Bruna

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Methods Mentioned

BETA
genotyping

Software Mentioned

R
CERVUS
DISTANCE
Genalex

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