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      A new vine snake (Reptilia, Colubridae, Oxybelis) from Peru and redescription of O. acuminatus

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      Evolutionary Systematics

      Pensoft Publishers

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          Abstract

          The Brown Vine Snake, Oxybelis aeneus, was until recently considered a single species, distributed from southern Arizona through the Neotropics into southeastern Brazil. However, newly conducted research restructured the species with a substantial taxonomic revision, recognizing five additional taxa (i.e. O. koehleri, O. microphthalmus, O. potosiensis, O. rutherfordi, O. vittatus) in this species complex. This revision focused on populations in North America, Central America, and northern South America while neglecting the southern portion of its distribution. Here, we examine the taxonomic history of the complex and use it along with specimen data to resurrect O. acuminatus from southeastern Brazil. Finally, we describe a new species from the Peruvian Amazon based on morphological characters. This work increases the species diversity of the O. aeneus complex to eight, and we expect further increases in biodiversity discoveries with continued exploration of the New World vine snakes.

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          Biodiversity hotspots for conservation priorities.

          Conservationists are far from able to assist all species under threat, if only for lack of funding. This places a premium on priorities: how can we support the most species at the least cost? One way is to identify 'biodiversity hotspots' where exceptional concentrations of endemic species are undergoing exceptional loss of habitat. As many as 44% of all species of vascular plants and 35% of all species in four vertebrate groups are confined to 25 hotspots comprising only 1.4% of the land surface of the Earth. This opens the way for a 'silver bullet' strategy on the part of conservation planners, focusing on these hotspots in proportion to their share of the world's species at risk.
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            Natürliches System der Amphibien : mit vorangehender Classification der Säugethiere und Vögel : ein Beitrag zur vergleichenden Zoologie /

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              The conservation status of the world’s reptiles

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                Author and article information

                Contributors
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                Journal
                Evolutionary Systematics
                EvolSyst
                Pensoft Publishers
                2535-0730
                January 14 2021
                January 14 2021
                : 5
                : 1
                : 1-12
                Article
                10.3897/evolsyst.5.60626
                © 2021

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