Some rare Indo-Pacific corals may be hybrids

Discussion in 'Diving, Collecting and Environmental Discussions' started by 459b, 24 Mar 2009.

  1. 459b

    459b Moderator

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    An interesting read:


    Some Rare Indo-Pacific Coral Species Are Probable Hybrids


    Zoe T. Richards,1,2 Madeleine J. H. van Oppen,1,3 Carden C. Wallace,2 Bette L. Willis,1,4 and David J. Miller1,5*
    PLoS ONE. 2008; 3(9): e3240


    Background
    Coral reefs worldwide face a variety of threats and many coral species are increasingly endangered. It is often assumed that rare coral species face higher risks of extinction because they have very small effective population sizes, a predicted consequence of which is decreased genetic diversity and adaptive potential.
    Methodology/Principal Findings
    Here we show that some Indo-Pacific members of the coral genus Acropora have very small global population sizes and are likely to be unidirectional hybrids. Whether this reflects hybrid origins or secondary hybridization following speciation is unclear.
    Conclusions/Significance
    The interspecific gene flow demonstrated here implies increased genetic diversity and adaptive potential in these coral species. Rare Acropora species may therefore be less vulnerable to extinction than has often been assumed because of their propensity for hybridization and introgression, which may increase their adaptive potential.




    You can find the full article at: Some Rare Indo-Pacific Coral Species Are Probable Hybrids
     
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  3. Warr7207

    Warr7207

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    Very interesting info, if not a bit too technical for me :p
     
  4. ReefMaster_SA

    ReefMaster_SA

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    wow it is true I have read such info and the strange part is that the ocean is made with only 1% of reefs. If reefs dont get taking care of it could be a serious problem ,I will buy a bigger tank for the SPS :yeahdude: so they can grow and spread it better than to place some back to the OCEAN
     

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