Abstract：
:This study presents genetic evidence that whale sharks, Rhincodon typus, are comprised of at least two populations that rarely mix and is the first to document a population expansion. Relatively high genetic structure is found when comparing sharks from the Gulf of Mexico with sharks from the Indo-Pacific. If mixing occurs between the Indian and Atlantic Oceans, it is not sufficient to counter genetic drift. This suggests whale sharks are not all part of a single global metapopulation. The significant population expansion we found was indicated by both microsatellite and mitochondrial DNA. The expansion may have happened during the Holocene, when tropical species could expand their range due to sea-level rise, eliminating dispersal barriers and increasing plankton productivity. However, the historic trend of population increase may have reversed recently. Declines in genetic diversity are found for 6 consecutive years at Ningaloo Reef in Australia. The declines in genetic diversity being seen now in Australia may be due to commercial-scale harvesting of whale sharks and collision with boats in past decades in other countries in the Indo-Pacific. The study findings have implications for models of population connectivity for whale sharks and advocate for continued focus on effective protection of the world's largest fish at multiple spatial scales.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Vignaud TM,Maynard JA,Leblois R,Meekan MG,Vázquez-Juárez R,Ramírez-Macías D,Pierce SJ,Rowat D,Berumen ML,Beeravolu C,Baksay S,Planes Sdoi
10.1111/mec.12754subject
Has Abstractpub_date
2014-05-01 00:00:00pages
2590-601issue
10eissn
0962-1083issn
1365-294Xjournal_volume
23pub_type
杂志文章abstract：:Spatially overdispersed mounds of fungus-farming termites (Macrotermitinae) are hotspots of nutrient availability and primary productivity in tropical savannas, creating spatial heterogeneity in communities and ecosystem functions. These termites influence the local availability of nutrients in part by redistributing ...
journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/mec.15585
更新日期：2020-11-01 00:00:00
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journal_title：Molecular ecology
pub_type： 评论,杂志文章
doi：10.1111/j.1365-294X.2010.04798.x
更新日期：2010-11-01 00:00:00
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journal_title：Molecular ecology
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journal_title：Molecular ecology
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journal_title：Molecular ecology
pub_type： 评论,杂志文章
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/mec.13231
更新日期：2016-04-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1046/j.1365-294x.2002.01428.x
更新日期：2002-02-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/mec.12668
更新日期：2014-03-01 00:00:00
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journal_title：Molecular ecology
pub_type： 评论,杂志文章
doi：10.1111/mec.12314
更新日期：2013-06-01 00:00:00
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pub_type： 杂志文章
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更新日期：2006-10-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/mec.15491
更新日期：2020-10-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1046/j.1365-294x.2003.01732.x
更新日期：2003-02-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/mec.14240
更新日期：2017-09-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/j.1365-294X.2008.04051.x
更新日期：2009-03-01 00:00:00
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journal_title：Molecular ecology
pub_type： 评论,杂志文章
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更新日期：2014-05-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/j.1365-294X.2008.03855.x
更新日期：2008-08-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/mec.13358
更新日期：2015-10-01 00:00:00
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journal_title：Molecular ecology
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doi：10.1111/j.1365-294X.2009.04093.x
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pub_type： 杂志文章
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journal_title：Molecular ecology
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pub_type： 杂志文章
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journal_title：Molecular ecology
pub_type： 杂志文章
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更新日期：2003-04-01 00:00:00
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journal_title：Molecular ecology
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更新日期：2003-10-01 00:00:00
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journal_title：Molecular ecology
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更新日期：2005-08-01 00:00:00
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pub_type： 杂志文章
doi：10.1046/j.1365-294x.2003.01962.x
更新日期：2003-11-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
doi：10.1111/mec.13435
更新日期：2015-12-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
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更新日期：2013-11-01 00:00:00
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journal_title：Molecular ecology
pub_type： 杂志文章
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更新日期：2000-10-01 00:00:00
