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      A checklist of the bats of Peninsular Malaysia and progress towards a DNA barcode reference library

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          Abstract

          Several published checklists of bat species have covered Peninsular Malaysia as part of a broader region and/or in combination with other mammal groups. Other researchers have produced comprehensive checklists for specific localities within the peninsula. To our knowledge, a comprehensive checklist of bats specifically for the entire geopolitical region of Peninsular Malaysia has never been published, yet knowing which species are present in Peninsular Malaysia and their distributions across the region are crucial in developing suitable conservation plans. Our literature search revealed that 110 bat species have been documented in Peninsular Malaysia; 105 species have precise locality records while five species lack recent and/or precise locality records. We retrieved 18 species from records dated before the year 2000 and seven species have only ever been recorded once. Our search of Barcode of Life Datasystems (BOLD) found that 86 (of the 110) species have public records of which 48 species have public DNA barcodes available from bats sampled in Peninsular Malaysia. Based on Neighbour-Joining tree analyses and the allocation of DNA barcodes to Barcode Index Number system (BINs) by BOLD, several DNA barcodes recorded under the same species name are likely to represent distinct taxa. We discuss these cases in detail and highlight the importance of further surveys to determine the occurences and resolve the taxonomy of particular bat species in Peninsular Malaysia, with implications for conservation priorities.

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          Cryptic species as a window on diversity and conservation.

          The taxonomic challenge posed by cryptic species (two or more distinct species classified as a single species) has been recognized for nearly 300 years, but the advent of relatively inexpensive and rapid DNA sequencing has given biologists a new tool for detecting and differentiating morphologically similar species. Here, we synthesize the literature on cryptic and sibling species and discuss trends in their discovery. However, a lack of systematic studies leaves many questions open, such as whether cryptic species are more common in particular habitats, latitudes or taxonomic groups. The discovery of cryptic species is likely to be non-random with regard to taxon and biome and, hence, could have profound implications for evolutionary theory, biogeography and conservation planning.
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            The Role of DNA Barcodes in Understanding and Conservation of Mammal Diversity in Southeast Asia

            Background Southeast Asia is recognized as a region of very high biodiversity, much of which is currently at risk due to habitat loss and other threats. However, many aspects of this diversity, even for relatively well-known groups such as mammals, are poorly known, limiting ability to develop conservation plans. This study examines the value of DNA barcodes, sequences of the mitochondrial COI gene, to enhance understanding of mammalian diversity in the region and hence to aid conservation planning. Methodology and Principal Findings DNA barcodes were obtained from nearly 1900 specimens representing 165 recognized species of bats. All morphologically or acoustically distinct species, based on classical taxonomy, could be discriminated with DNA barcodes except four closely allied species pairs. Many currently recognized species contained multiple barcode lineages, often with deep divergence suggesting unrecognized species. In addition, most widespread species showed substantial genetic differentiation across their distributions. Our results suggest that mammal species richness within the region may be underestimated by at least 50%, and there are higher levels of endemism and greater intra-specific population structure than previously recognized. Conclusions DNA barcodes can aid conservation and research by assisting field workers in identifying species, by helping taxonomists determine species groups needing more detailed analysis, and by facilitating the recognition of the appropriate units and scales for conservation planning.
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              Applying the Bootstrap in Phylogeny Reconstruction

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                Author and article information

                Contributors
                Role: ConceptualizationRole: Data curationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: Formal analysisRole: Writing – original draft
                Role: Formal analysisRole: Writing – original draft
                Role: ConceptualizationRole: Formal analysisRole: MethodologyRole: Writing – original draftRole: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                25 July 2017
                2017
                : 12
                : 7
                : e0179555
                Affiliations
                [1 ] Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
                [2 ] International College Beijing, China Agricultural University, Beijing, P. R. China
                Brown University, UNITED STATES
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                ‡ VCL and JJW designed the review, and RR and SB provided suggestions to improve the draft on this work.

                Author information
                http://orcid.org/0000-0002-2722-4771
                Article
                PONE-D-17-04279
                10.1371/journal.pone.0179555
                5526618
                28742835
                870ff1c3-eaf7-47ea-bfcf-7a26c661e32e
                © 2017 Lim et al

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 2 February 2017
                : 30 May 2017
                Page count
                Figures: 6, Tables: 0, Pages: 65
                Funding
                Funded by: Institut Pengurusan dan Pemantauan Penyelidikan, Universiti Malaya (MY)
                Award ID: PG060-2016A
                Award Recipient :
                This project was supported by a grant under the University of Malaya Postgraduate Research Fund (PG060-2016A). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
                Categories
                Research Article
                Biology and Life Sciences
                Ecology
                Ecosystems
                Forests
                Ecology and Environmental Sciences
                Ecology
                Ecosystems
                Forests
                Ecology and Environmental Sciences
                Terrestrial Environments
                Forests
                Biology and life sciences
                Molecular biology
                Molecular biology techniques
                DNA barcoding
                Research and analysis methods
                Molecular biology techniques
                DNA barcoding
                Biology and life sciences
                Evolutionary biology
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                Molecular systematics
                DNA barcoding
                Biology and life sciences
                Taxonomy
                Evolutionary systematics
                Molecular systematics
                DNA barcoding
                Computer and information sciences
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                Taxonomy
                Evolutionary systematics
                Molecular systematics
                DNA barcoding
                Biology and Life Sciences
                Organisms
                Animals
                Animal Types
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                Zoology
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                People and Places
                Geographical Locations
                Asia
                Malaysia
                Biology and Life Sciences
                Organisms
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                Vertebrates
                Amniotes
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                Biology and Life Sciences
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                Genetics
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                Biology and life sciences
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                Earth Sciences
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                Custom metadata
                All of the data (i.e. DNA barcodes) were obtained from Barcode of Life Data Systems at http://v4.boldsystems.org/. DNA barcodes which were included in the manuscript were publicly available. We also included some of the data as Supporting Information. Barcode of Life Data Systems is a public data repository. However, some of the data maybe not be publicly available if the owner of the dataset privatised it. Some of the data (e.g. checklists) are only available to registered users due to the restriction imposed by the Barcode of Life Data Systems.

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