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      Patterns and processes in plant phylogeography in the Mediterranean Basin. A review

      Perspectives in Plant Ecology, Evolution and Systematics

      Elsevier BV

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          Conserving biodiversity under climate change: the rear edge matters.

          Modern climate change is producing poleward range shifts of numerous taxa, communities and ecosystems worldwide. The response of species to changing environments is likely to be determined largely by population responses at range margins. In contrast to the expanding edge, the low-latitude limit (rear edge) of species ranges remains understudied, and the critical importance of rear edge populations as long-term stores of species' genetic diversity and foci of speciation has been little acknowledged. We review recent findings from the fossil record, phylogeography and ecology to illustrate that rear edge populations are often disproportionately important for the survival and evolution of biota. Their ecological features, dynamics and conservation requirements differ from those of populations in other parts of the range, and some commonly recommended conservation practices might therefore be of little use or even counterproductive for rear edge populations.
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            Phylogeographic insights into cryptic glacial refugia.

            The glacial episodes of the Quaternary (2.6 million years ago-present) were a major factor in shaping the present-day distributions of extant flora and fauna, with expansions and contractions of the ice sheets rendering large areas uninhabitable for most species. Fossil records suggest that many species survived glacial maxima by retreating to refugia, usually at lower latitudes. Recently, phylogeographic studies have given support to the existence of previously unknown, or cryptic, refugia. Here we summarise many of these insights into the glacial histories of species in cryptic refugia gained through phylogeographic approaches. Understanding such refugia might be important as the Earth heads into another period of climate change, in terms of predicting the effects on species distribution and survival.
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              Geological evolution of the tethys belt from the atlantic to the pamirs since the LIAS

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                Author and article information

                Journal
                Perspectives in Plant Ecology, Evolution and Systematics
                Perspectives in Plant Ecology, Evolution and Systematics
                Elsevier BV
                14338319
                October 2014
                October 2014
                : 16
                : 5
                : 265-278
                Article
                10.1016/j.ppees.2014.07.002
                © 2014

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