Population dynamics and genotypic richness of threatened Acropora species and their hybrid in the U.S. Virgin Islands

Nylander-Asplin, Hannah F.; Hill, Ronald L.; Doerr, Jennifer C.; Greer, Lisa; Fogarty, Nicole D.

doi:10.1007/s00338-021-02093-y

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Population dynamics and genotypic richness of threatened Acropora species and their hybrid in the U.S. Virgin Islands

2021
By Nylander-Asplin, Hannah F. ; Hill, Ronald L. ; Doerr, Jennifer C. ; ...
Source: Coral Reefs 40, 965–971 (2021)

[PDF-1.44 MB]

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Details:

Journal Title:

Coral Reefs
Personal Author:

Nylander-Asplin, Hannah F. ; Hill, Ronald L. ; Doerr, Jennifer C. ; Greer, Lisa ; Fogarty, Nicole D.

Nylander-Asplin, Hannah F. ; Hill, Ronald L. ; Doerr, Jennifer C. ; Greer, Lisa ; Fogarty, Nicole D. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SEFSC (Southeast Fisheries Science Center) ; CoRIS (Coral Reef Information System)

NMFS (National Marine Fisheries Service) ; SEFSC (Southeast Fisheries Science Center) ; CoRIS (Coral Reef Information System) Less -
Description:

Acropora cervicornis and A. palmata have experienced substantial losses in coral cover throughout the Caribbean, but their hybrid (A. prolifera) appears to be increasing at some sites. The shifts in relative abundance could result from hybridization with subsequent asexual fragmentation, recent increased hybridization, or a disproportionate loss in the parental species. Here, acroporid taxa from three U.S. Virgin Islands sites were genotyped revealing 35 hybrid genotypes, suggesting multiple hybridization events. Genotypic richness in A. cervicornis (0.62), A. prolifera (0.64), and A. palmata (0.68) was not significantly different across sites. To further explore acroporid dynamics at these sites, we analyzed existing photo transects from 2009 to 2017 to reveal significant losses of A. cervicornis but stable hybrid percent cover. High genotypic richness and stable populations suggest acroporid hybrids may become the primary shallow reef-builders in some locations previously occupied by the parental species.
Keywords:

[+]

Acropora Cervicornis Coral Reefs And Islands Elkhorn Coral Acropora Palmata Acropora Prolifera Aquatic Science Coral Reefs Hybridization
Source:

Coral Reefs 40, 965–971 (2021)
DOI:

https://doi.org/10.1007/s00338-021-02093-y
CoRIS Project ID:

CRCP Project ID ; 31243
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:13d032c41870e00d88619340326b1f2f525d5c92f7b4cb290e5b3e0758e02136
Download URL:

https://repository.library.noaa.gov/view/noaa/48132/noaa_48132_DS1.pdf
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