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      Cryptic species as a window on diversity and conservation.

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          Abstract

          The taxonomic challenge posed by cryptic species (two or more distinct species classified as a single species) has been recognized for nearly 300 years, but the advent of relatively inexpensive and rapid DNA sequencing has given biologists a new tool for detecting and differentiating morphologically similar species. Here, we synthesize the literature on cryptic and sibling species and discuss trends in their discovery. However, a lack of systematic studies leaves many questions open, such as whether cryptic species are more common in particular habitats, latitudes or taxonomic groups. The discovery of cryptic species is likely to be non-random with regard to taxon and biome and, hence, could have profound implications for evolutionary theory, biogeography and conservation planning.

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          Author and article information

          Journal
          Trends Ecol. Evol. (Amst.)
          Trends in ecology & evolution
          0169-5347
          0169-5347
          Mar 2007
          : 22
          : 3
          Affiliations
          [1 ] Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Republic of Singapore.
          Article
          S0169-5347(06)00370-3
          10.1016/j.tree.2006.11.004
          17129636

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