Universität zu Köln

Meiri, Shai ORCID: 0000-0003-3839-6330, Bauer, Aaron M., Allison, Allen, Castro-Herrera, Fernando, Chirio, Laurent, Colli, Guarino, Das, Indraneil, Doan, Tiffany M., Glaw, Frank, Grismer, Lee L., Hoogmoed, Marinus, Kraus, Fred, LeBreton, Matthew, Meirte, Danny, Nagy, Zoltan T. ORCID: 0000-0002-8455-040X, Nogueira, Cristiano de C., Oliver, Paul ORCID: 0000-0003-4291-257X, Pauwels, Olivier S. G., Pincheira-Donoso, Daniel, Shea, Glenn, Sindaco, Roberto, Tallowin, Oliver J. S., Torres-Carvajal, Omar ORCID: 0000-0003-0041-9250, Trape, Jean-Francois, Uetz, Peter ORCID: 0000-0001-6194-4927, Wagner, Philipp, Wang, Yuezhao, Ziegler, Thomas and Roll, Uri ORCID: 0000-0002-5418-1164 (2018). Extinct, obscure or imaginary: The lizard species with the smallest ranges. Divers. Distrib., 24 (2). S. 262 - 274. HOBOKEN: WILEY. ISSN 1472-4642

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Abstract

Aim: Small geographic ranges make species especially prone to extinction from anthropogenic disturbances or natural stochastic events. We assemble and analyse a comprehensive dataset of all the world's lizard species and identify the species with the smallest ranges-those known only from their type localities. We compare them to wide-ranging species to infer whether specific geographic regions or biological traits predispose species to have small ranges. Location: Global. Methods: We extensively surveyed museum collections, the primary literature and our own field records to identify all the species of lizards with a maximum linear geographic extent of < 10 km. We compared their biogeography, key biological traits and threat status to those of all other lizards. Results: One in seven lizards (927 of the 6,568 currently recognized species) are known only from their type localities. These include 213 species known only from a single specimen. Compared to more wide-ranging taxa, they mostly inhabit relatively inaccessible regions at lower, mostly tropical, latitudes. Surprisingly, we found that burrowing lifestyle is a relatively unimportant driver of small range size. Geckos are especially prone to having tiny ranges, and skinks dominate lists of such species not seen for over 50 years, as well as of species known only from their holotype. Two-thirds of these species have no IUCN assessments, and at least 20 are extinct. Main conclusions: Fourteen per cent of lizard diversity is restricted to a single location, often in inaccessible regions. These species are elusive, usually poorly known and little studied. Many face severe extinction risk, but current knowledge is inadequate to properly assess this for all of them. We recommend that such species become the focus of taxonomic, ecological and survey efforts.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Meiri, Shai UNSPECIFIED orcid.org/0000-0003-3839-6330 UNSPECIFIED Bauer, Aaron M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Allison, Allen UNSPECIFIED UNSPECIFIED UNSPECIFIED Castro-Herrera, Fernando UNSPECIFIED UNSPECIFIED UNSPECIFIED Chirio, Laurent UNSPECIFIED UNSPECIFIED UNSPECIFIED Colli, Guarino UNSPECIFIED UNSPECIFIED UNSPECIFIED Das, Indraneil UNSPECIFIED UNSPECIFIED UNSPECIFIED Doan, Tiffany M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Glaw, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED Grismer, Lee L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hoogmoed, Marinus UNSPECIFIED UNSPECIFIED UNSPECIFIED Kraus, Fred UNSPECIFIED UNSPECIFIED UNSPECIFIED LeBreton, Matthew UNSPECIFIED UNSPECIFIED UNSPECIFIED Meirte, Danny UNSPECIFIED UNSPECIFIED UNSPECIFIED Nagy, Zoltan T. UNSPECIFIED orcid.org/0000-0002-8455-040X UNSPECIFIED Nogueira, Cristiano de C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Oliver, Paul UNSPECIFIED orcid.org/0000-0003-4291-257X UNSPECIFIED Pauwels, Olivier S. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pincheira-Donoso, Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Shea, Glenn UNSPECIFIED UNSPECIFIED UNSPECIFIED Sindaco, Roberto UNSPECIFIED UNSPECIFIED UNSPECIFIED Tallowin, Oliver J. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Torres-Carvajal, Omar UNSPECIFIED orcid.org/0000-0003-0041-9250 UNSPECIFIED Trape, Jean-Francois UNSPECIFIED UNSPECIFIED UNSPECIFIED Uetz, Peter UNSPECIFIED orcid.org/0000-0001-6194-4927 UNSPECIFIED Wagner, Philipp UNSPECIFIED UNSPECIFIED UNSPECIFIED Wang, Yuezhao UNSPECIFIED UNSPECIFIED UNSPECIFIED Ziegler, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Roll, Uri UNSPECIFIED orcid.org/0000-0002-5418-1164 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-198290
DOI:	10.1111/ddi.12678
Journal or Publication Title:	Divers. Distrib.
Volume:	24
Number:	2
Page Range:	S. 262 - 274
Date:	2018
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1472-4642
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PENINSULAR THAILAND; SQUAMATA GEKKONIDAE; CONSERVATION; REPTILES; EVOLUTION; ECOLOGY; GECKOS; CYRTODACTYLUS; BIOGEOGRAPHY; RICHNESS Multiple languages Biodiversity Conservation; Ecology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/19829