Demographic and genetic connectivity: the role and consequences of reproduction, dispersal and recruitment in seagrasses

Kendrick, Gary A., Orth, Robert, Statton, John, Hovey, Renae, Montoya, Leonardo Ruiz, Lowe, Ryan J., Krauss, Siegfried L., and Sinclair, Elizabeth A. (2017) Demographic and genetic connectivity: the role and consequences of reproduction, dispersal and recruitment in seagrasses. Biological Reviews, 92 (2). pp. 921-938.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website: https://doi.org/10.1111/brv.12261
 
29
1


Abstract

Accurate estimation of connectivity among populations is fundamental for determining the drivers of population resilience, genetic diversity, adaptation and speciation. However the separation and quantification of contemporary versus historical connectivity remains a major challenge. This review focuses on marine angiosperms, seagrasses, that are fundamental to the health and productivity of temperate and tropical coastal marine environments globally. Our objective is to understand better the role of sexual reproduction and recruitment in influencing demographic and genetic connectivity among seagrass populations through an integrated multidisciplinary assessment of our present ecological, genetic, and demographic understanding, with hydrodynamic modelling of transport. We investigate (i) the demographic consequences of sexual reproduction, dispersal and recruitment in seagrasses, (ii) contemporary transport of seagrass pollen, fruits and seed, and vegetative fragments with a focus on hydrodynamic and particle transportmodels, and (iii) contemporary genetic connectivity among seagrass meadows as inferred through the application of genetic markers. New approaches are reviewed, followed by a summary outlining future directions for research: integrating seascape genetic approaches; incorporating hydrodynamic modelling for dispersal of pollen, seeds and vegetative fragments; integrating studies across broader geographic ranges; and incorporating non-equilibrium modelling. These approaches will lead to a more integrated understanding of the role of contemporary dispersal and recruitment in the persistence and evolution of seagrasses.

Item ID: 53972
Item Type: Article (Research - C1)
ISSN: 1469-185X
Keywords: gene flow; ocean transport; pollen dispersal; recruitment; seagrasses; seed dispersal; spatial genetic structure; vegetative fragments
Funders: Australian Research Council (ARC), BMT Oceanica Enviornmental Consultants, Shark Bay Resources, University of Western Australia, Virginia Institute of Marine Science, Botanic Gardens and Parks Authority of Western Australia
Projects and Grants: ARC Linkage grant program LP130100155, ARC Linkage grant program LP130100918
Date Deposited: 11 Jun 2018 06:00
FoR Codes: 06 BIOLOGICAL SCIENCES > 0607 Plant Biology > 060703 Plant Developmental and Reproductive Biology @ 50%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 50%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
Downloads: Total: 1
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page