Gene flow creates a mirage of cryptic species in a Southeast Asian spotted stream frog complex

Onn, Chan Kin; Hutter, Carl R.; Wood, Perry L.; Grismer, L. Lee; Das, Indraneil; Brown, Rafe M.

doi:10.1111/mec.15603

Cited by 58 publications

(45 citation statements)

References 154 publications

(204 reference statements)

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“…However, we continue to consider them as conspecific due to their low genetic divergence (2.0-3.0 %) based on ND1, 16S and tRNAs of mitochondrial DNA. We are adopting a conservative approach for now pending a more extensive genetic examination as other studies using genomic datasets have revealed past hybridization events between Bornean and Thai-Malay Peninsula populations of other anuran species complexes (Chan et al 2020c).…”

Section: Discussionmentioning

confidence: 99%

An investigation into the taxonomy of Abavorana luctuosa (Peters, 1871) (Anura, Ranidae) and the resurrection of Rana decorata Mocquard, 1890 from Borneo

Quah¹,

Grismer²,

Wood³

et al. 2021

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The taxonomic status of the ranid frog Abavorana luctuosa (Peters, 1871) was investigated using a combination of molecular and morphological data. The analyses revealed that A. luctuosasensu lato is composed of two species in Borneo. One of these species agrees with the description of Rana decorata Mocquard, 1890 which is resurrected in the combination Abavorana decoratacomb. nov. (Mocquard, 1890). Abavorana decorata is recovered as the sister lineage to the remainder of Abavorana and differs by a 16.0–17.0 % uncorrected pairwise sequence divergence from its congeners A. nazgul and A. luctuosa, respectively. It is distinguishable morphologically from A. luctuosa and A. nazgul by its ventral pattern (bold, black and white reticulations on its venter along with bold banding on the underside of hind limbs vs. generally immaculate and spotted in the latter two species), and a prominent white streak beneath the eye and/or tympanum extending to the corner of the jaw. Abavorana decorata further differs from A. luctuosa by having a significantly wider head and snout, larger interorbital and tympanum diameters, longer femur in both sexes, and various combinations of other mensural characters. Both species are sympatric in Borneo and this discovery adds to a growing number of widespread Sundaic species shown to be species complexes with distinct forms in Borneo.

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Section: Discussionmentioning

confidence: 99%

An investigation into the taxonomy of Abavorana luctuosa (Peters, 1871) (Anura, Ranidae) and the resurrection of Rana decorata Mocquard, 1890 from Borneo

Quah¹,

Grismer²,

Wood³

et al. 2021

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“…Advances in sequencing technology coupled with a concomitant reduction in sequencing cost and collaborations with international partners saw a rise in genetic research between 2005– 2020. These, including more recent studies involving genome-scale data (Chan et al 2020a, c; b) indicate that amphibian research in Peninsular Malaysia is progressing and is on par with other research programmes around the world.…”

Section: Discussionmentioning

confidence: 99%

“…At the turn of the 21 st century, important contributions continue to be made, largely led and inspired by the prominent Malaysian zoologist Dr. Lim Boo Liat (Das et al 2004; Grismer et al 2001, 2004; Kiew et al 1995; Leong & Lim 2004; Lim et al 2002; Norhayati et al 2005). Alongside surveys, inventories, and new species discoveries that continue to be forthcoming, the breadth of research topics also expanded to include research in the field of molecular systematics and evolution (Chan et al 2017, 2018b, 2020c, b; a; Chan & Brown 2017, 2020; Chan & Grismer 2019; Davis et al 2016; Hurzaid et al 2014; Matsui et al 2017; Stuart et al 2006). As research continues to develop with changing times and technologies, we review the status, patterns, and progress of Peninsular Malaysia’s amphibian research in the 21st century with the main goal of identifying areas for improvement that can help focus and prioritize future research initiatives.…”

Section: Introductionmentioning

confidence: 99%

Patterns and Progress of Peninsular Malaysia’s Amphibian Research in the 21st Century (2000–2020)

Onn

Ahmad

2021

Preprint

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We review the status, patterns, and progress of Peninsular Malaysia's amphibian research in the 21st century with the main goal of identifying areas for improvement that can help focus and prioritize future research initiatives. Between 2000-2020 we found 130 publications that can be broadly categorized into four groups: 1) checklists and biodiversity; 2) new species and taxonomy; 3) ecology and natural history; and 4) evolution and phylogenetics. An average of 6.5 papers was published per year and although the number of papers fluctuated, there was a significant upward trend in the number of papers published. Almost half (49%) of all papers published comprised checklists and biodiversity-related papers. This was followed by new species and taxonomy (25%, 33 papers), evolution and phylogenetics (14%, 18 papers), and ecology and natural history (12%, 16 papers). Amphibian research was conducted most frequently in the states of Kedah, Pahang, and Perak, and most infrequently in the states of Malacca, Negeri Sembilan, Selangor/Kuala Lumpur, Perlis, and Kelantan. Despite being a megadiverse country and a biodiversity hotspot, not a single conservation-centric paper has ever been published on Peninsular Malaysian amphibians, highlighting the urgent need for future research to focus on conservation.

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“…Hylarana sundabarat reported from LBHRF, BPFR, BBPFR, and BJ were previously reported as H. picturata. All previous records of Hylarana or Pulchrana picturata and P. signata from Peninsular Malaysia are now recognized as H. sundabarat, based on the works of Chan et al (2020bChan et al ( , 2020c that demonstrated that populations of H. picturata from Peninsular Malaysia and Sumatra are not only genetically different from the Bornean population, but also differed morphologically and in bioacoustics. Hylarana picturata is now restricted to Borneo (Chan et al 2020c).…”

Section: Rhacophorus Sp Xmentioning

confidence: 99%

Preliminary report on the herpetofaunal diversity of Batu Hampar Recreational Forest, Kedah, Malaysia

Zijia¹,

Anuar²,

Grismer³

et al. 2021

CheckList

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Batu Hampar Recreational Forest (BHRF) is a lowland dipterocarp forest located in the northwestern region of Peninsular Malaysia and has not been surveyed for its herpetofauna until now. A preliminary survey of the herpetofaunal diversity of BHRF was conducted from September 2018 to February 2019 resulting in 103 individuals (37 species) of amphibians and reptiles found. This includes 14 species of frogs from six families and 10 genera; 14 species of lizards from four families and 11 genera; eight species of snakes from five families and eight genera; and one species of freshwater turtle. From these results, Batu Hampar Recreational Forest has a high herpetofaunal diversity with a Simpson’s Index of Diversity of 0.869 and a Shannon-Wiener Diversity Index of 2.930. In the future, additional surveys over longer periods of time should be conducted at BHRF to produce a more complete checklist.

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Gene flow creates a mirage of cryptic species in a Southeast Asian spotted stream frog complex

Abstract: Species delimitation plays a pivotal role in biodiversity research, with potential cascading effects in conservation and other applied sci

Cited by 58 publications

References 154 publications

An investigation into the taxonomy of Abavorana luctuosa (Peters, 1871) (Anura, Ranidae) and the resurrection of Rana decorata Mocquard, 1890 from Borneo

An investigation into the taxonomy of Abavorana luctuosa (Peters, 1871) (Anura, Ranidae) and the resurrection of Rana decorata Mocquard, 1890 from Borneo

Patterns and Progress of Peninsular Malaysia’s Amphibian Research in the 21st Century (2000–2020)

Preliminary report on the herpetofaunal diversity of Batu Hampar Recreational Forest, Kedah, Malaysia

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