Taxonomic implications of geographical variation in Rhinolophus affinis (Chiroptera: Rhinolophidae) in mainland Southeast Asia
Background Rhinolophus affinis sensu lato is distributed throughout Southeast Asia. The taxonomic status of forms attributed to the species is unclear due to the limited sample size with incomplete datasets and the taxa have high variation in morphology and echolocation call frequency. The aim of...
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| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2015
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| Online Access: | http://ir.unimas.my/id/eprint/10554/ http://ir.unimas.my/id/eprint/10554/1/Saveng.pdf |
| _version_ | 1848836804781801472 |
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| author | Saveng, Ith Sara, Bumrungsri Neil M, Furey Paul JJ, Bates Faisal Ali, Anwarali Khan |
| author_facet | Saveng, Ith Sara, Bumrungsri Neil M, Furey Paul JJ, Bates Faisal Ali, Anwarali Khan |
| author_sort | Saveng, Ith |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Background
Rhinolophus affinis sensu lato is distributed throughout Southeast Asia. The taxonomic status of forms attributed to the species is unclear due to the limited sample size with incomplete datasets and the taxa have high variation in morphology and echolocation call frequency. The aim of the study was to evaluate the distribution and taxonomic status of the subspecific forms of R. affinis in mainland Southeast Asia using large sample size with multiple datasets, including morphological, acoustic, and genetic data, both to elucidate taxonomic relationships and to test for congruence between these datasets.
Results
Three morphological forms were confirmed within the region; two concur with previously recognized taxa, namely R. affinis macrurus and R. affinis superans, and are strongly supported by morphological and genetic data. The third form is morphologically distinct, but its taxonomic status remains unclear. It is probable that this third form represents a distinct taxonomic entity; however, more data are required to confirm this. R. a. macrurus is known from the north of peninsular Thailand, Cambodia, Myanmar, Laos, and Vietnam (Indochinese subregion); R. a. superans is found throughout the Thai-Malay Peninsula (Sundaic subregion); whilst the third form is presently known from east central Myanmar (Shan state) and lower northern Vietnam (Nghe An Province).
Conclusions
Our results suggest that at least three morphological forms occur in mainland Southeast Asia including one form which appears to be new to science. Echolocation call data for R. affinis are not a robust taxonomic tool as it shows a significant degree of variation which is not explained or supported by genetic and morphological findings. This study highlights significant levels of morphological variation in mainland Southeast Asia and provides an essential basis for further studies aiming to understand the population genetics, phylogeography, and taxonomy of the species. |
| first_indexed | 2025-11-15T06:29:35Z |
| format | Article |
| id | unimas-10554 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:29:35Z |
| publishDate | 2015 |
| publisher | Springer Berlin Heidelberg |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-105542021-06-22T14:29:40Z http://ir.unimas.my/id/eprint/10554/ Taxonomic implications of geographical variation in Rhinolophus affinis (Chiroptera: Rhinolophidae) in mainland Southeast Asia Saveng, Ith Sara, Bumrungsri Neil M, Furey Paul JJ, Bates Faisal Ali, Anwarali Khan QL Zoology Background Rhinolophus affinis sensu lato is distributed throughout Southeast Asia. The taxonomic status of forms attributed to the species is unclear due to the limited sample size with incomplete datasets and the taxa have high variation in morphology and echolocation call frequency. The aim of the study was to evaluate the distribution and taxonomic status of the subspecific forms of R. affinis in mainland Southeast Asia using large sample size with multiple datasets, including morphological, acoustic, and genetic data, both to elucidate taxonomic relationships and to test for congruence between these datasets. Results Three morphological forms were confirmed within the region; two concur with previously recognized taxa, namely R. affinis macrurus and R. affinis superans, and are strongly supported by morphological and genetic data. The third form is morphologically distinct, but its taxonomic status remains unclear. It is probable that this third form represents a distinct taxonomic entity; however, more data are required to confirm this. R. a. macrurus is known from the north of peninsular Thailand, Cambodia, Myanmar, Laos, and Vietnam (Indochinese subregion); R. a. superans is found throughout the Thai-Malay Peninsula (Sundaic subregion); whilst the third form is presently known from east central Myanmar (Shan state) and lower northern Vietnam (Nghe An Province). Conclusions Our results suggest that at least three morphological forms occur in mainland Southeast Asia including one form which appears to be new to science. Echolocation call data for R. affinis are not a robust taxonomic tool as it shows a significant degree of variation which is not explained or supported by genetic and morphological findings. This study highlights significant levels of morphological variation in mainland Southeast Asia and provides an essential basis for further studies aiming to understand the population genetics, phylogeography, and taxonomy of the species. Springer Berlin Heidelberg 2015 Article PeerReviewed text en http://ir.unimas.my/id/eprint/10554/1/Saveng.pdf Saveng, Ith and Sara, Bumrungsri and Neil M, Furey and Paul JJ, Bates and Faisal Ali, Anwarali Khan (2015) Taxonomic implications of geographical variation in Rhinolophus affinis (Chiroptera: Rhinolophidae) in mainland Southeast Asia. Zoological Studies, 54 (31). ISSN 1810-522X http://link.springer.com/article/10.1186%2Fs40555-015-0109-8 Doi : 10.1186/s40555-015-0109-8 |
| spellingShingle | QL Zoology Saveng, Ith Sara, Bumrungsri Neil M, Furey Paul JJ, Bates Faisal Ali, Anwarali Khan Taxonomic implications of geographical variation in Rhinolophus affinis (Chiroptera: Rhinolophidae) in mainland Southeast Asia |
| title | Taxonomic implications of geographical variation
in Rhinolophus affinis (Chiroptera: Rhinolophidae)
in mainland Southeast Asia |
| title_full | Taxonomic implications of geographical variation
in Rhinolophus affinis (Chiroptera: Rhinolophidae)
in mainland Southeast Asia |
| title_fullStr | Taxonomic implications of geographical variation
in Rhinolophus affinis (Chiroptera: Rhinolophidae)
in mainland Southeast Asia |
| title_full_unstemmed | Taxonomic implications of geographical variation
in Rhinolophus affinis (Chiroptera: Rhinolophidae)
in mainland Southeast Asia |
| title_short | Taxonomic implications of geographical variation
in Rhinolophus affinis (Chiroptera: Rhinolophidae)
in mainland Southeast Asia |
| title_sort | taxonomic implications of geographical variation
in rhinolophus affinis (chiroptera: rhinolophidae)
in mainland southeast asia |
| topic | QL Zoology |
| url | http://ir.unimas.my/id/eprint/10554/ http://ir.unimas.my/id/eprint/10554/ http://ir.unimas.my/id/eprint/10554/ http://ir.unimas.my/id/eprint/10554/1/Saveng.pdf |