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Population structure of the scleractinian coral, Montastraea cavernosa, in southeast Florida

Citation

Dodge, Danielle L et al. (2022), Population structure of the scleractinian coral, Montastraea cavernosa, in southeast Florida, Dryad, Dataset, https://doi.org/10.5061/dryad.rr4xgxd5g

Abstract

The persistence of scleractinian coral populations on the Florida Reef Tract (FRT) is controlled in part by metapopulation dynamics and larval dispersal. Nine polymorphic microsatellite loci were analyzed to identify contemporary population structure and gene flow as well as historical migration rates of Montastraea cavernosa at five sites off Martin, Palm Beach, and Broward counties in southeast Florida. The sampled populations demonstrated evidence of genetic isolation by distance over a geographic range of 85 km. Population genetic structure was divided into two genetic clusters, northern and southern, with admixture along a latitudinal gradient. Historical migration models indicated likely panmixia throughout all sites sampled, identifying a potential reduction in connectivity among the sampled populations through time. Though M. cavernosa populations demonstrated evidence of historical connectivity, contemporary patterns of isolation by distance suggest that effective management will require localized actions to maximize the likelihood of sustaining individual populations in the northern FRT. Given the results of this study, coupled with recent coral mortality events in the region, we recommend regional conservation efforts and management initiatives throughout southeast Florida within a more comprehensive FRT-wide management network.

Usage Notes

M. cavernosa genotypes

Datasheet containing Montastraea cavernosa multi-locus genotypes for 9 microsatellite loci (developed by Serrano et al. 2014) assessing population structure across sites in the northern Florida Reef Tract (NFRT). See readme for column descriptions.

Dodge_etal_NFRT_Mcav genotypes.xlsx

Dodge_etal_NFRT_Mcav genotypes_README.txt

Structure input file

Multi-locus genotypes for M. cavernosa from the NFRT, formatted for Structure input.

Dodge_etal_NFRT_Structure input.txt

Structure parameter file

Structure run parameters for use with Structure input file.

Dodge_etal_NFRT_Structure parameters

Migrate-n input file

Multi-locus genotypes for M. cavernosa from the NFRT, formatted for Migrate-n input.

Dodge_etal_NFRT_Migrate input.txt

Migrate-n symmetric parameter file

Parameter file for Migrate-n model symmetric (symmetrical migration across all populations). Designed for use with Migrate-n-mpi on a high-performance computing cluster.

Dodge_etal_NFRT_Migrate parameters symmetric.txt

Migrate-n south-north parameter file

Parameter file for Migrate-n model south-north (net south-to-north migration). Designed for use with Migrate-n-mpi on a high-performance computing cluster.

Dodge_etal_NFRT_Migrate parameters south-north.txt

Migrate-n north-south parameter file

Parameter file for Migrate-n model north-south (net north-to-south migration). Designed for use with Migrate-n-mpi on a high-performance computing cluster.

Dodge_etal_NFRT_Migrate parameters north-south.txt

Migrate-n Pan parameter file

Parameter file for Migrate-n model Panmixia (single population). Designed for use with Migrate-n-mpi on a high-performance computing cluster.

Studivan and Voss_GOM_Migrate parameters Pan

Funding