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Showing posts with the label population genetics

Seagrass ecosystem services (Grass Roots Biology)

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This post was originally published under the title "Grass Roots Biology" in the December 2015 issue of  The Biologist , the Royal Society of Biology's magazine. If you're a member of the RSB you can also view the article on their website here . The images are not those used by the RSB nor are they mine, the copyright belongs to their credited owners and most are from ARKive.org. Neptune grass ( Posidonia oceanica ) meadow in the Mediterranean © M. San Felix, from  l ivescience.com Grass Roots Biology Home to myriad species and acting as massive carbon sinks, seagrass meadows are key marine habitats – but they are disappearing fast, reports Xaali O'Reilly Berkeley The Biologist  62(6) p16-19 Seagrasses are a group of flowering plants adapted to live in salt water. They grow, flower and pollinate completely submerged in estuaries and along shallow coastal waters around the globe, both in temperate and tropical environments. Although they physi...

The Grey Wolves of Europe

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The grey wolf ( Canis lupus ) is one of the Northern Hemisphere’s most iconic carnivores. However, in a matter of centuries, the grey wolf has been exterminated from at least a third of its former range [1] . Until 2004, wolves remained listed as “Vulnerable” on the IUCN Red List for Endangered Species [1] . The grey wolf is now making an unexpected comeback in North America and Europe [2–4] . A proposal to strip the grey wolf of the protection from the US Fish and Wildlife Service (USFWS) recently sparked debate, leading to an independent review of the species’ situation in North America [5] . Despite the recovery wolves are making, retracting their protected status could reverse this situation once again [5] . What’s more, a mere rise in numbers may not suffice to ensure the future of the species, as extreme population reduction and fragmentation come with less apparent, genetic consequences as discussed below [6–8] . Additionally, as an apex predator, a great deal of controversy...