Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities

South Africa is recognised for its high reptile diversity and endemism, specifically among lizards. Phylogenetic diversity, endemism, and richness can have clear implications or raise important questions in a range of fields, and most urgently in conservation. Among squamate reptiles, these indices...

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Main Authors: Gary K. Nicolau, Shelley Edwards
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/15/2/306
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author Gary K. Nicolau
Shelley Edwards
author_facet Gary K. Nicolau
Shelley Edwards
author_sort Gary K. Nicolau
collection DOAJ
description South Africa is recognised for its high reptile diversity and endemism, specifically among lizards. Phylogenetic diversity, endemism, and richness can have clear implications or raise important questions in a range of fields, and most urgently in conservation. Among squamate reptiles, these indices are very commonly associated with high temperatures and topographic heterogeneity. Indeed, mountainous biogeography has been a critical driver in the radiation of the family Gekkonidae within the subregion. Here, we assess the species richness, diversity, and endemism of Gekkonidae species inhabiting South Africa, Lesotho, and Eswatini, accounting for phylogenetic relationships. We also employ the CANAPE method to identify regions that have neo- and/or paleoendemics. Southern African gekkonids appear to be most diverse and show high levels of endemism in three regions of Southern Africa: the northwestern Richtersveld, the escarpment running west to southeast, and the northeastern escarpment in the Limpopo province. Implications for conservation priorities are discussed.
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spelling doaj.art-167f4596e47e44768e57882cac0b7b1e2023-11-16T20:06:00ZengMDPI AGDiversity1424-28182023-02-0115230610.3390/d15020306Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation PrioritiesGary K. Nicolau0Shelley Edwards1Zoology & Entomology Molecular Laboratory (ZEML), Department of Zoology & Entomology, Rhodes University, Makhanda 6139, South AfricaZoology & Entomology Molecular Laboratory (ZEML), Department of Zoology & Entomology, Rhodes University, Makhanda 6139, South AfricaSouth Africa is recognised for its high reptile diversity and endemism, specifically among lizards. Phylogenetic diversity, endemism, and richness can have clear implications or raise important questions in a range of fields, and most urgently in conservation. Among squamate reptiles, these indices are very commonly associated with high temperatures and topographic heterogeneity. Indeed, mountainous biogeography has been a critical driver in the radiation of the family Gekkonidae within the subregion. Here, we assess the species richness, diversity, and endemism of Gekkonidae species inhabiting South Africa, Lesotho, and Eswatini, accounting for phylogenetic relationships. We also employ the CANAPE method to identify regions that have neo- and/or paleoendemics. Southern African gekkonids appear to be most diverse and show high levels of endemism in three regions of Southern Africa: the northwestern Richtersveld, the escarpment running west to southeast, and the northeastern escarpment in the Limpopo province. Implications for conservation priorities are discussed.https://www.mdpi.com/1424-2818/15/2/306CANAPEescarpmentphylogenetic diversityphylogenetic endemism
spellingShingle Gary K. Nicolau
Shelley Edwards
Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities
Diversity
CANAPE
escarpment
phylogenetic diversity
phylogenetic endemism
title Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities
title_full Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities
title_fullStr Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities
title_full_unstemmed Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities
title_short Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities
title_sort diversity and endemism of southern african gekkonids linked with the escarpment has implications for conservation priorities
topic CANAPE
escarpment
phylogenetic diversity
phylogenetic endemism
url https://www.mdpi.com/1424-2818/15/2/306
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AT shelleyedwards diversityandendemismofsouthernafricangekkonidslinkedwiththeescarpmenthasimplicationsforconservationpriorities