An Arctic refugium under assault
نویسنده
چکیده
in politics and business to sacrifice the well-being of a faceless future population for the short-term benefits to be gained for present-day voters and shareholders appears to be irresistible. While the Ehrlichs and the other scientists cited here all tend to end their dire warnings on a more hopeful note, emphasising that a change of course is still possible, none of them seems overly optimistic that it will actually happen. While the older generations of today’s population may not live to see our civilisation fall, Rees’s fifty-fifty odds are an uncomfortable thought for all of us who want to leave a habitable world to our grandchildren. The present-day Algerian town of Timgad has built a new theatre right next door to the Roman ruins. Maybe international meetings like the COP climate change conferences should be held there as a matter of principle. Contemplating the traces of a collapsed civilisation can clear the mind considerably.
منابع مشابه
Phylogeography of lemmings (Lemmus): no evidence for postglacial colonization of Arctic from the Beringian refugium.
Beringia is considered as an important glacial refugium that served as the main source for colonization of formerly glaciated Arctic regions. To obtain high resolution views of Arctic refugial history, we examined mitochondrial cytochrome b phylogeography in the northern genus of rodents, Lemmus (true lemmings), sampled across its circumpolar distribution. Strong phylogeographical structure sug...
متن کاملGlobal warming triggers the loss of a key Arctic refugium.
We document the rapid transformation of one of the Earth's last remaining Arctic refugia, a change that is being driven by global warming. In stark contrast to the amplified warming observed throughout much of the Arctic, the Hudson Bay Lowlands (HBL) of subarctic Canada has maintained cool temperatures, largely due to the counteracting effects of persistent sea ice. However, since the mid-1990...
متن کاملMultiple glacial refugia in the North American Arctic: inference from phylogeography of the collared lemming (Dicrostonyx groenlandicus).
Cryptic northern refugia beyond the ice limit of the Pleistocene glaciations may have had significant influence on the current pattern of biodiversity in Arctic regions. In order to evaluate whether northern glacial refugia existed in the Canadian Arctic, we examined mitochondrial DNA phylogeography in the northernmost species of rodents, the collared lemming (Dicrostonyx groenlandicus) sampled...
متن کاملCircumpolar Genetic Structure and Recent Gene Flow of Polar Bears: A Reanalysis
Recently, an extensive study of 2,748 polar bears (Ursus maritimus) from across their circumpolar range was published in PLOS ONE, which used microsatellites and mitochondrial haplotypes to apparently show altered population structure and a dramatic change in directional gene flow towards the Canadian Archipelago-an area believed to be a future refugium for polar bears as their southernmost hab...
متن کاملThe Arctic: Glacial Refugium or Area of Secondary Contact? Inference from the Population Genetic Structure of the Thick-Billed Murre (Uria lomvia), with Implications for Management.
Quaternary glaciations affected the distribution of many species. Here, we investigate whether the Arctic represented a glacial refugium during the Last Glacial Maximum or an area of secondary contact following the ice retreat, by analyzing the genetic population structure of the thick-billed murre (Uria lomvia), a seabird that breeds throughout the North Atlantic, North Pacific and Arctic Ocea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Current Biology
دوره 23 شماره
صفحات -
تاریخ انتشار 2013