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Issue: Vol. 5353 No. 3: 10 Oct. 2023
Type: Article
Published: 2023-10-10
DOI: 10.11646/zootaxa.5353.3.4
Page range: 265-275
Abstract views: 220
PDF downloaded: 21

Genetic and morphological concordance and discordance within the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae)

Herpetology Laboratory; Department of Biology; La Sierra University; 4500 Riverwalk Parkway; Riverside; California 92505; USA.; Department of Herpetology; San Diego Natural History Museum; PO Box 121390; San Diego; California; 92112; USA; Institute for Tropical Biology and Conservation; Universiti Malaysia Sabah; Jalan UMS; 88400; Kota Kinabalu; Sabah; Malaysia
School of Biological Sciences; Universiti Sains Malaysia; 11800 Minden; Penang; Malaysia; Center for Marine and Coastal Studies; Universiti Sains Malaysia; 11800 USM; Pulau Pinang; Malaysia.
Centre for Global Sustainability Studies (CGSS); Level 5; Hamzah Sendut Library; Universiti Sains Malaysia; 11800 USM; Penang
Institute for Environment and Development; (LESTARI); Universiti Kebangsaan Malaysia; 43600 Bangi; Selangor Darul Eshan; Malaysia
Institute for Tropical Biology and Conservation; Universiti Malaysia Sabah; Jalan UMS; 88400; Kota Kinabalu; Sabah; Malaysia.; Lee Kong Chian Natural History Museum; National University of Singapore; 2 Conservatory Drive; 117377; Singapore
Reptilia Crypsis Sample error Bent-toed gecko Thailand Malaysia

Abstract

We use data sets from the Cyrtodactylus brevipalmatus group with limited genetic and morphological sampling to demonstrate that not accounting for sampling error may adversely influence decisions regarding species delimitation and diagnosis. Lack of geographic sampling between the endpoints of a species’ range may recover notable interpopulational genetic differentiation consistent with species-level differentiation. Additionally, small population sample sizes may fail recover statistically different diagnostic morphological differences. Combined, these types of sampling error can produce results seemingly consistent with the recognition of cryptic species—genetically delimited populations lacking diagnostic morphological characters. This is the current situation within some lineages of the C. brevipalmatus group whereas in others, sampling error is less problematic and does not jeopardize their taxonomy. We note the potential negative effects for comparative biology as a whole if sampling error is not taken into consideration prior to constructing taxonomies.

 

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