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| Content Provider | PubMed Central |
|---|---|
| Author | Weider, Lawrence J. Frisch, Dagmar Hebert, Paul D. N. |
| Copyright Year | 2009 |
| Abstract | Population genetic surveys approximately 25 years apart examined the distribution and abundance of asexual clones of the freshwater zooplankter Daphnia pulex complex in rock pools near Churchill, Manitoba, Canada. In 1984–1985, melanic members of this species complex were present in 131 rock pools at this site, but were only detected in 90 of these pools in 2007–2008. Allozymic surveys conducted during these two time periods revealed that 59 per cent of these populations showed unchanged clonal composition. Total clonal replacement occurred in 8 per cent of the populations, while the others (33%) included a mixture of ‘resident’ clones and new ‘colonists’. We discuss these changes in light of shifts in biotic and abiotic factors. We also discuss the use of rock pool habitats as ‘sentinel’ systems for examining long-term environmental changes in the ecological genetics of aquatic organisms in the Arctic. |
| Related Links | http://dx.doi.org/10.1098/rspb.2009.1326 |
| Ending Page | 146 |
| Page Count | 8 |
| Starting Page | 139 |
| File Format | |
| ISSN | 09628452 |
| e-ISSN | 14712954 |
| Journal | Proceedings of the Royal Society B: Biological Sciences |
| Issue Number | 1678 |
| Volume Number | 277 |
| Language | English |
| Publisher | The Royal Society |
| Publisher Date | 2010-01-07 |
| Access Restriction | Open |
| Rights Holder | The Royal Society |
| Subject Keyword | Biochemistry, Genetics and Molecular Biology(all) Immunology and Microbiology(all) Agricultural and Biological Sciences(all) Environmental Science(all) Medicine(all) Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Microbiology Medicine Biochemistry, Genetics and Molecular Biology Environmental Science Agricultural and Biological Sciences |
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