The hidden diversity and inland radiation of Sri Lanka's ground-dwelling geckos of the genus Cyrtodactylus (Reptilia: Gekkonidae). Issue 1 (31st December 2022)
- Record Type:
- Journal Article
- Title:
- The hidden diversity and inland radiation of Sri Lanka's ground-dwelling geckos of the genus Cyrtodactylus (Reptilia: Gekkonidae). Issue 1 (31st December 2022)
- Main Title:
- The hidden diversity and inland radiation of Sri Lanka's ground-dwelling geckos of the genus Cyrtodactylus (Reptilia: Gekkonidae)
- Authors:
- Amarasinghe, A. A. Thasun
Karunarathna, Suranjan
Campbell, Patrick D.
Gayan, A. K. Anusha
Ranasinghe, W. D. Bhanuka
De Silva, Anslem
Mirza, Zeeshan A. - Abstract:
- Abstract : The genus Cyrtodactylus has recently been classified phylogenetically into several clades, subclades, groups, and some into Sri Lankan Cyrtodactylus . Certain complexes from the Indian subcontinent have been assigned to the " C . triedrus group". This group is comprised of medium-sized species (SVL 50.6–105.7 mm) and are composed of five major species complexes: fraenatus, triedrus, deccanensis, jeyporensis, and collegalensis . Among these complexes, the latter four are composed of ground and litter dwelling species, which were previously assigned to the genus Geckoella ; and is currently being treated as a subgenus. Cyrtodactylus triedrus, an endemic species of Sri Lanka, has long been considered a widely distributed single species in this part of the world. Based on morphological and phylogenetic evidences, we demonstrate that C . ( G .) triedrus is not a single species, but a species complex. We also describe a new species that is restricted to intermediate savanna-mixed dry lowland forested habitats. Furthermore, we resurrect Geckoella punctata, assign it to the genus Cyrtodactylus and designate a lectotype that we redescribe. The genetic divergence across species of the C . triedrus clade varies between 11–26% in the studied fragment of the mitochondrial NADH dehydrogenase subunit 2 gene. The molecular phylogeny of the ground dwelling radiation of the subgenus Geckoella indicates deep splits between the Indian species and Sri Lankan endemic C . ( G .)Abstract : The genus Cyrtodactylus has recently been classified phylogenetically into several clades, subclades, groups, and some into Sri Lankan Cyrtodactylus . Certain complexes from the Indian subcontinent have been assigned to the " C . triedrus group". This group is comprised of medium-sized species (SVL 50.6–105.7 mm) and are composed of five major species complexes: fraenatus, triedrus, deccanensis, jeyporensis, and collegalensis . Among these complexes, the latter four are composed of ground and litter dwelling species, which were previously assigned to the genus Geckoella ; and is currently being treated as a subgenus. Cyrtodactylus triedrus, an endemic species of Sri Lanka, has long been considered a widely distributed single species in this part of the world. Based on morphological and phylogenetic evidences, we demonstrate that C . ( G .) triedrus is not a single species, but a species complex. We also describe a new species that is restricted to intermediate savanna-mixed dry lowland forested habitats. Furthermore, we resurrect Geckoella punctata, assign it to the genus Cyrtodactylus and designate a lectotype that we redescribe. The genetic divergence across species of the C . triedrus clade varies between 11–26% in the studied fragment of the mitochondrial NADH dehydrogenase subunit 2 gene. The molecular phylogeny of the ground dwelling radiation of the subgenus Geckoella indicates deep splits between the Indian species and Sri Lankan endemic C . ( G .) triedrus sensu stricto, and between Indian dry and wet zone clades. Cyrtodactylus ( G .). triedrus is restricted to the moist or submontane forests in the Central highlands of Sri Lanka and is redescribed herein based on its holotype. http://zoobank.org/urn:lsid:zoobank:org:pub:3B37037C-EE9F-4011-BEC9-47E1F3BB6779 … (more)
- Is Part Of:
- Systematics and biodiversity. Volume 20:Issue 1(2022)
- Journal:
- Systematics and biodiversity
- Issue:
- Volume 20:Issue 1(2022)
- Issue Display:
- Volume 20, Issue 1 (2022)
- Year:
- 2022
- Volume:
- 20
- Issue:
- 1
- Issue Sort Value:
- 2022-0020-0001-0000
- Page Start:
- 1
- Page End:
- 25
- Publication Date:
- 2022-12-31
- Subjects:
- biogeography -- cryptic species -- Geckoella -- island -- new species -- phylogeny -- systematics
Biodiversity -- Periodicals
Biology -- Classification -- Periodicals
Natural history -- Periodicals
Biodiversity
Biology
Classification
Periodicals
578 - Journal URLs:
- http://journals.cambridge.org/action/displayJournal?jid=SYS ↗
http://journals.cambridge.org/JID_SYS ↗
http://www.tandfonline.com/toc/tsab20/current ↗
http://www.tandfonline.com/ ↗ - DOI:
- 10.1080/14772000.2022.2039319 ↗
- Languages:
- English
- ISSNs:
- 1478-0933
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 21177.xml