Title |
Panmixia in a Fragmented and Unstable Environment: The Hydrothermal Shrimp Rimicaris exoculata Disperses Extensively along the Mid-Atlantic Ridge
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Published in |
PLOS ONE, June 2012
|
DOI | 10.1371/journal.pone.0038521 |
Pubmed ID | |
Authors |
Sara Teixeira, Ester A. Serrão, Sophie Arnaud-Haond |
Abstract |
Dispersal plays a fundamental role in the evolution and persistence of species, and especially for species inhabiting extreme, ephemeral and highly fragmented habitats as hydrothermal vents. The Mid-Atlantic Ridge endemic shrimp species Rimicaris exoculata was studied using microsatellite markers to infer connectivity along the 7100-Km range encompassing the sampled sites. Astonishingly, no genetic differentiation was found between individuals from the different geographic origins, supporting a scenario of widespread large-scale dispersal despite the habitat distance and fragmentation. We hypothesize that delayed metamorphosis associated to temperature differences or even active directed migration dependent on physical and/or chemical stimuli could explain these results and warrant further studies on adaptation and dispersal mechanisms. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 3 | 4% |
Portugal | 2 | 2% |
South Africa | 2 | 2% |
Germany | 1 | 1% |
Unknown | 74 | 90% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 25 | 30% |
Student > Ph. D. Student | 16 | 20% |
Student > Bachelor | 8 | 10% |
Student > Master | 6 | 7% |
Other | 5 | 6% |
Other | 15 | 18% |
Unknown | 7 | 9% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 42 | 51% |
Environmental Science | 16 | 20% |
Biochemistry, Genetics and Molecular Biology | 7 | 9% |
Earth and Planetary Sciences | 2 | 2% |
Nursing and Health Professions | 1 | 1% |
Other | 4 | 5% |
Unknown | 10 | 12% |