Research Data

Data from: High gene flow across large geographic scales reduces extinction risk for a highly specialised coral feeding butterflyfish

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General
Title
Data from: High gene flow across large geographic scales reduces extinction risk for a highly specialised coral feeding butterflyfish
Type
Dataset
Date Record Created
2017-11-27
Date Record Modified
2017-12-22
Language
English
Coverage
Date Coverage
(no information)
Time Period
(no information)
Geospatial Location
  • Tissue samples were collected from up to 50 individuals of each species at five locations across the Pacific: Lizard Island, North Great Barrier Reef; Heron Island, South Great Barrier Reef; Kimbe Bay, Papua New Guinea; Noumea, New Caledonia; and Moorea, French Polynesia
Description
Descriptions
  1. Type: full

    Data consists of 2 files:

    (1) C lunulatus microsatellite data - Allele frequences for 12 microsatellite loci. Arelquin format data file. Genomic DNA extracted from fin clip tissue samples.

    (2) C. trifascialis microsatellite data - Allele frequences for 11 microsatellite loci. Arelquin format data file. Genomic DNA extracted from fin clip tissue samples.

    Abstract [Related Publication]: The vulnerability of ecologically specialised species to environmental fluctuations has been well documented. However, population genetic structure can influence vulnerability to environmental change and recent studies have indicated that specialised species may have lower genetic diversity and greater population structuring compared to their generalist counterparts. To examine whether there were differences in population genetic structure between a dietary specialist (Chaetodon trifascialis) and a dietary generalist (Chaetodon lunulatus) we compared the demographic history and levels of gene flow of two related coral-feeding butterflyfishes. Using allele frequencies of ≥11 microsatellite loci and >350 bases of mitochondrial control region sequence our analyses of C. trifascialis and C. lunulatus from five locations across the Pacific Ocean revealed contrasting demographic histories and levels of genetic structure. Heterozygosity excess tests, neutrality tests and mismatch distributions were all highly significant in the dietary specialist C. trifascialis (all P < 0.01), suggesting genetic bottlenecks have occurred in all locations. In contrast, we found little evidence of genetic bottlenecks for the dietary generalist C. lunulatus. High gene flow and low genetic structuring was detected among locations for C. trifascialis (amova: RST = 0.0027, P = 0.371; ΦST = 0.068, P < 0.0001). Contrary to our expectations, a greater level of genetic structuring between locations was detected for C. lunulatus (amova: RST = 0.0277, ΦST = 0.166, both P < 0.0001). These results suggest that dietary specialisation may affect demographic history through reductions in population size following resource declines, without affecting population structure through reductions in gene flow in the same way that habitat specialisation appears to. Although C. trifascialis is highly vulnerable to coral loss, the high gene flow detected here suggests populations will be able to recover from local declines through the migration of individuals.

    The full methodology is available in the publication shown in the Related Publications link below.

     

  2. Type: note

    This dataset is available from Dryad in  Arlequin format (.arp.bak) and can be opened with a text editor. Dryad data package: Lawton RJ, Messmer V, Pratchett MS, Bay LK (2011) Data from: High gene flow across large geographic scales reduces extinction risk for a highly specialised coral feeding butterflyfish. Dryad Digital Repository. https://doi.org/10.5061/dryad.4m80r

Related Publications
  1. Lawton, Rebecca, Messmer, Vanessa, Pratchett, Morgan, and Bay, Line (2011) High gene flow across large geographic scales reduces extinction risk for a highly specialised coral feeding butterflyfish. Molecular Ecology, 20. pp. 3584-3598.
Related Websites
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Related Data
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Related Services
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Technical metadata
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People
Creators
  1. Managed by: Dr Rebecca Lawton , rebecca.lawton@jcu.edu.au , ARC Centre of Excellence for Coral Reef Studies, Marine Biology & Aquaculture, Centre for Tropical Water and Aquatic Ecosystem Research
  2. Associated with: Dr Vanessa Messmer , vanessa.messmer@jcu.edu.au , ARC Centre of Excellence for Coral Reef Studies, Marine Biology & Aquaculture
  3. Associated with: Prof Morgan Pratchett , morgan.pratchett@jcu.edu.au , ARC Centre of Excellence for Coral Reef Studies, Marine Biology & Aquaculture
  4. Associated with: Dr Line Bay , line.bay@jcu.edu.au , Division of Research & Innovation, Marine Biology & Aquaculture, ARC Centre of Excellence for Coral Reef Studies
Primary Contact
Dr Rebecca Lawton, rebecca.lawton@jcu.edu.au
Supervisors
(no information)
Collaborators
(no information)
Subject
Fields of Research
  1. 060411 - Population, Ecological and Evolutionary Genetics (060411)
Socio-Economic Objective
  1. 960309 - Effects of Climate Change and Variability on the South Pacific (excl. Australia and New Zealand) (excl. Social Impacts) (960309)
  2. 970105 - Expanding Knowledge in the Environmental Sciences (970105)
  3. 970106 - Expanding Knowledge in the Biological Sciences (970106)
Keywords
  1. specialisation
  2. population connectivity
  3. coral reefs
  4. vulnerability
  5. bottleneck
  6. Chaetodon lunulatus
  7. Chaetodon trifascialis
  8. Chaetodontidae
  9. ARC Centre of Excellence for Coral Reef Studies
Research Activity
(no information)
Research Themes
Tropical Ecosystems, Conservation and Climate Change
Rights
License
(no information)
License - Other
CC 0: Public Domain Dedication 1.0 Universal
Access Rights/Conditions
Open access. If the data is not feely accessible via the link provided, please contact the nominated data manager or researchdata@jcu.edu.au for assistance.
Type
open
Rights
(no information)
Data
Data Location
Online Locations
  1. https://doi.org/10.5061/dryad.4m80r
Stored At
(no information)
Citation
Cite:
Lawton, R.; Messmer, V.; Pratchett, M.; Bay, L. (2011). Data from: High gene flow across large geographic scales reduces extinction risk for a highly specialised coral feeding butterflyfish. James Cook University. (dataset). 5e3b40567e81d087adcef5710028fcaf