Displaying publications 1 - 20 of 192 in total

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  1. Understanding bat ecosystem services on a global scale requires caution and wider collaboration: a critical evaluation of Ramírez-Fráncel et al. (2022)
    Tanalgo KC, McConkey K, Racey P, Aziz SA, Sritongchuay T, Hughes AC, et al.
    Integr Zool, 2023 Mar;18(2):385-390.
    PMID: 35262285 DOI: 10.1111/1749-4877.12646
    Matched MeSH terms: Chiroptera*
  2. Fulltext Counting in the dark: non-intrusive laser scanning for population counting and identifying roosting bats
    Azmy SN, Sah SA, Shafie NJ, Ariffin A, Majid Z, Ismail MN, et al.
    Sci Rep, 2012;2:524.
    PMID: 22826802 DOI: 10.1038/srep00524
    Population surveys and species recognition for roosting bats are either based on capture, sight or optical-mechanical count methods. However, these methods are intrusive, are tedious and, at best, provide only statistical estimations. Here, we demonstrated the successful use of a terrestrial Light Detection and Ranging (LIDAR) laser scanner for remotely identifying and determining the exact population of roosting bats in caves. LIDAR accurately captured the 3D features of the roosting bats and their spatial distribution patterns in minimal light. The high-resolution model of the cave enabled an exact count of the visibly differentiated Hipposideros larvatus and their roosting pattern within the 3D topology of the cave. We anticipate that the development of LIDAR will open up new research possibilities by allowing researchers to study roosting behaviour within the topographical context of a cave's internal surface, thus facilitating rigorous quantitative characterisations of cave roosting behaviour.
    Matched MeSH terms: Chiroptera*
  3. Report of a new bat fly of the genus Ascodipteron adensamer, 1896 (Diptera: Streblidae) parasitic on Hipposderos Diadema (Geoffroy) in Malaysia
    Stiller D
    J Med Entomol, 1976 Dec 08;13(3):374-5.
    PMID: 1011242
    Matched MeSH terms: Chiroptera/parasitology*
  4. Fulltext Isolation of Tioman virus from Pteropus giganteus bat in North-East region of India
    Yadav P, Sarkale P, Patil D, Shete A, Kokate P, Kumar V, et al.
    Infect Genet Evol, 2016 11;45:224-229.
    PMID: 27619056 DOI: 10.1016/j.meegid.2016.09.010
    Bat-borne viral diseases are a major public health concern among newly emerging infectious diseases which includes severe acute respiratory syndrome, Nipah, Marburg and Ebola virus disease. During the survey for Nipah virus among bats at North-East region of India; Tioman virus (TioV), a new member of the Paramyxoviridae family was isolated from tissues of Pteropus giganteus bats for the first time in India. This isolate was identified and confirmed by RT-PCR, sequence analysis and electron microscopy. A range of vertebrate cell lines were shown to be susceptible to Tioman virus. Negative electron microscopy study revealed the "herringbone" morphology of the nucleocapsid filaments and enveloped particles with distinct envelope projections a characteristic of the Paramyxoviridae family. Sequence analysis of Nucleocapsid gene of TioV demonstrated sequence identity of 99.87% and 99.99% nucleotide and amino acid respectively with of TioV strain isolated in Malaysia, 2001. This report demonstrates the first isolation of Tioman virus from a region where Nipah virus activity has been noticed in the past and recent years. Bat-borne viruses have become serious concern world-wide. A Survey of bats for novel viruses in this region would help in recognizing emerging viruses and combating diseases caused by them.
    Matched MeSH terms: Chiroptera/virology*
  5. A filarial parasite from the flying fox (Pteropus vampyrus)
    Ramachandran CP, Ramalingam S, Chelvam MP
    Med J Malaya, 1966 Jun;20(4):338-9.
    PMID: 4224564
    Matched MeSH terms: Chiroptera*
  6. A MALAYAB BAT TRYPANOSOME RESEMBLING T. CRUZI AND T. VESPERTILIONIS
    DUNN FL
    Med J Malaysia, 1964 Sep;19:34-5.
    PMID: 14240059
    Matched MeSH terms: Chiroptera*
  7. [TREMATODA PARASITIZING MALAYAN BATS]
    ROHDE K
    Z Parasitenkd, 1963 Oct 29;23:324-39.
    PMID: 14095066
    Matched MeSH terms: Chiroptera*
  8. Fulltext Serosurvey for Nipah virus in bat population of southern part of India
    Gokhale M, Sudeep AB, Mathapati B, Balasubramanian R, Ullas PT, Mohandas S, et al.
    Comp Immunol Microbiol Infect Dis, 2022 Jun;85:101800.
    PMID: 35390635 DOI: 10.1016/j.cimid.2022.101800
    Nipah virus (NiV) is one of the priority pathogens with pandemic potential. Though the spread is far slower than SARS-CoV-2, case fatality is the biggest concern. Fruit bats belonging to genus Pteropus are identified to be the main reservoir of the virus causing sporadic cases and outbreaks in Malaysia, Bangladesh and India. The sudden emergence of Nipah in Kerala, India during 2018-2019 has been astonishing with respect to its introduction in the unaffected areas. With this, active Nipah virus surveillance was conducted among bat populations in Southern part of India viz., Karnataka, Kerala, Tamil Nadu, Telangana, Puducherry and Odisha during January-November 2019. Throat swabs/rectal swabs (n = 573) collected from Pteropus medius and Rousettus leschenaultii bat species and sera of Pteropus medius bats (n = 255) were screened to detect the presence of Nipah viral RNA and anti-Nipah IgG antibodies respectively. Of 255 P. medius bats sera samples, 51 bats (20%) captured from Karnataka, Kerala, Tamil Nadu and Puducherry demonstrated presence of anti-Nipah IgG antibodies. However, the presence of virus couldn't be detected in any of the bat specimens. The recent emergence of Nipah virus in Kerala in September 2021 warrants further surveillance of Nipah virus among bat populations from the affected and remaining states of India.
    Matched MeSH terms: Chiroptera*
  9. Fulltext ChiroVox: a public library of bat calls
    Görföl T, Huang JC, Csorba G, Győrössy D, Estók P, Kingston T, et al.
    PeerJ, 2022;10:e12445.
    PMID: 35070499 DOI: 10.7717/peerj.12445
    Recordings of bat echolocation and social calls are used for many research purposes from ecological studies to taxonomy. Effective use of these relies on identification of species from the recordings, but comparative recordings or detailed call descriptions to support identification are often lacking for areas with high biodiversity. The ChiroVox website (https://www.chirovox.org) was created to facilitate the sharing of bat sound recordings together with their metadata, including biodiversity data and recording circumstances. To date, more than 30 researchers have contributed over 3,900 recordings of nearly 200 species, making ChiroVox the largest open-access bat call library currently available. Each recording has a unique identifier that can be cited in publications; hence the acoustic analyses are repeatable. Most of the recordings available through the website are from bats whose species identities are confirmed, so they can be used to determine species in recordings where the bats were not captured or could not be identified. We hope that with the help of the bat researcher community, the website will grow rapidly and will serve as a solid source for bat acoustic research and monitoring.
    Matched MeSH terms: Chiroptera*
  10. Fulltext Spillover zoonotic 'Langya virus': is it a matter of concern?
    Choudhary OP, Priyanka, Fahrni ML, Metwally AA, Saied AA
    Vet Q, 2022 Dec;42(1):172-174.
    PMID: 36001038 DOI: 10.1080/01652176.2022.2117874
    Matched MeSH terms: Chiroptera*
  11. Fulltext Living Safely With Bats: Lessons in Developing and Sharing a Global One Health Educational Resource
    Martinez S, Sullivan A, Hagan E, Goley J, Epstein JH, Olival KJ, et al.
    Glob Health Sci Pract, 2022 Dec 21;10(6).
    PMID: 36951282 DOI: 10.9745/GHSP-D-22-00106
    As part of a public health behavior change and communication strategy related to the identification of a novel ebolavirus in bats in Sierra Leone in 2016, a consortium of experts launched an effort to create a widely accessible resource for community awareness and education on reducing disease risk. The resulting picture book, Living Safely With Bats, includes technical content developed by a consortium of experts in public health, animal health, conservation, bats, and disease ecology from 30 countries. The book has now been adapted, translated, and used in more than 20 countries in Africa and Asia. We review the processes used to integrate feedback from local stakeholders and multidisciplinary experts. We also provide recommendations for One Health and other practitioners who choose to pursue the development and evaluation of this or similar zoonotic disease risk mitigation tools.
    Matched MeSH terms: Chiroptera*
  12. Experimental infection of tick cells with Nipah virus
    Phoon WH, Bell-Sakyi L, AbuBakar S, Chang LY
    Trop Biomed, 2023 Mar 01;40(1):29-36.
    PMID: 37356001 DOI: 10.47665/tb.40.1.009
    Nipah virus (NiV), a highly pathogenic henipavirus of the family Paramyxoviridae, which causes fatal encephalitis in 40-70% of affected patients, was first reported in Malaysia over 20 years ago. Pteropid bats are the natural hosts of henipaviruses, and ticks have been proposed as a possible link between bats and mammalian hosts. To investigate this hypothesis, infection of the tick cell line IDE8 with NiV was examined. Presence of viral RNA and antigen in the NiV-infected tick cells was confirmed. Infectious virions were recovered from NiV-infected tick cells and ultrastructural features of NiV were observed by electron microscopy. These results suggest that ticks could support NiV infection, potentially playing a role in transmission.
    Matched MeSH terms: Chiroptera*
  13. Fulltext Detection of novel coronaviruses from dusky fruit bat (Penthetor lucasi) in Sarawak, Malaysian Borneo
    Habeebur-Rahman SP, Noni V, Khan FAA, Tan CS
    Vet Med Sci, 2023 Nov;9(6):2634-2641.
    PMID: 37658663 DOI: 10.1002/vms3.1251
    BACKGROUND: Sarawak has one of the highest diversity of fruit bats species (family Pteropodidae) in Malaysia, with 19 species described. Most coronavirus (CoV) studies have mainly focused on insectivorous bats, resulting in a lack of information on CoVs present in frugivorous bats. In addition, bat CoV surveillance activities are lacking in Malaysia.

    OBJECTIVES: Our study focuses on determining the presence of bat CoVs in dusky fruit bat (Penthetor lucasi).

    METHODS: Guano samples belonging to P. lucasi were collected from Wind Cave Nature Reserve. The samples were screened for the presence of CoVs using validated hemi-nested consensus RNA-dependent RNA polymerase consensus primers.

    RESULTS: The bat CoV positivity rate was 38.5% (n = 15/39), with the viruses belonging to two subgenera: Alphacoronavirus (α-CoV) and Betacoronavirus (β-CoV). Phylogenetic analysis revealed that CoVs from 14 samples of P. lucasi belong to the genus α-CoV and may represent previously described genetic lineages in insectivorous bats in Wind Cave. However, only one sample of P. lucasi was detected with β-CoV which is closely related to subgenus Nobecovirus, which is commonly seen in frugivorous bats.

    CONCLUSIONS: This study provides the first available data on CoVs circulating in P. lucasi.

    Matched MeSH terms: Chiroptera*
  14. Deep biogeographic barriers explain divergent global vertebrate communities
    Williams PJ, Zipkin EF, Brodie JF
    Nat Commun, 2024 Mar 28;15(1):2457.
    PMID: 38548741 DOI: 10.1038/s41467-024-46757-z
    Biogeographic history can lead to variation in biodiversity across regions, but it remains unclear how the degree of biogeographic isolation among communities may lead to differences in biodiversity. Biogeographic analyses generally treat regions as discrete units, but species assemblages differ in how much biogeographic history they share, just as species differ in how much evolutionary history they share. Here, we use a continuous measure of biogeographic distance, phylobetadiversity, to analyze the influence of biogeographic isolation on the taxonomic and functional diversity of global mammal and bird assemblages. On average, biodiversity is better predicted by environment than by isolation, especially for birds. However, mammals in deeply isolated regions are strongly influenced by isolation; mammal assemblages in Australia and Madagascar, for example, are much less diverse than predicted by environment alone and contain unique combinations of functional traits compared to other regions. Neotropical bat assemblages are far more functionally diverse than Paleotropical assemblages, reflecting the different trajectories of bat communities that have developed in isolation over tens of millions of years. Our results elucidate how long-lasting biogeographic barriers can lead to divergent diversity patterns, against the backdrop of environmental determinism that predominantly structures diversity across most of the world.
    Matched MeSH terms: Chiroptera*
  15. Thumb-pads up-a new species of thick-thumbed bat from Sumatra (Chiroptera: Vespertilionidae: Glischropus)
    Csorba G, Görföl T, Wiantoro S, Kingston T, Bates PJ, Huang JC
    Zootaxa, 2015 Jun 29;3980(2):267-78.
    PMID: 26249952 DOI: 10.11646/zootaxa.3980.2.7
    To date, three species of the genus Glischropus are recognized from the Indomalayan zoogeographic region-G. bucephalus from the Indochinese subregion, G. tylopus from the Sundaic subregion (Peninsular Thailand and Malaysia, Borneo, Sumatra, Moluccas) and G. javanus, restricted to Java. The investigation of the holotype and three topotype specimens of G. batjanus supported the view that the name was previously correctly regarded as the junior subjective synonym of G. tylopus. During review of material recently collected in southwestern Sumatra, Indonesia, one specimen of a yet undescribed species of Thick-thumbed bat was identified. G. aquilus n. sp. markedly differs from its congeners by its dark brown pelage, nearly black ear and tragus, and in skull proportions. The phylogenetic analysis based on cytb sequences also supports the specific distinctness of G. aquilus n. sp. Its discovery brings the count to 88 species of bats known from Sumatra.
    Matched MeSH terms: Chiroptera/anatomy & histology*; Chiroptera/classification*; Chiroptera/genetics; Chiroptera/physiology
  16. Fulltext Diversity Pattern of Bats at Two Contrasting Habitat Types along Kerian River, Perak, Malaysia
    Shafie NJ, Sah SA, Latip NS, Azman NM, Khairuddin NL
    Trop Life Sci Res, 2011 Dec;22(2):13-22.
    PMID: 24575214 MyJurnal
    We present an assessment of the diversity of Malaysian bats at two contrasting habitat types (secondary forest and oil palm plantation) along the Kerian River surveyed between February 2009 and February 2010. Three hundred and twenty nine individual bats from 13 species representing 4 families were recorded using 10 mist nets. The most commonly caught bat in the secondary forest was Cynopterus brachyotis (n=75), followed by Macroglossus minimus (n=10). Meanwhile, in the oil palm plantation, the most commonly caught bat was Cynopterus brachyotis (n=109), followed by Cynopterus horsfieldi (n=76). The netting efforts were equal for both habitat types. The total sampling nights for each habitat type was 5460. The oil palm plantation had a greater bat abundance that was significantly different from that of the secondary forest, with 209 and 120 individuals, respectively (Mann-Whitney U-test = 31.5, p<0.05). Our results suggest that there is no significant difference in species richness between the two sites. However, the invasion by disturbance-associated species of the secondary forest is indicative of negative effects on the forest and animal diversity in this area. Forest managers should consider multiple measures of forest fragmentation sensitivity before making any forest management decisions.
    Matched MeSH terms: Chiroptera
  17. Fulltext A cryptic species of the Tylonycteris pachypus complex (Chiroptera: Vespertilionidae) and its population genetic structure in southern China and nearby regions
    Huang C, Yu W, Xu Z, Qiu Y, Chen M, Qiu B, et al.
    Int J Biol Sci, 2014;10(2):200-11.
    PMID: 24550688 DOI: 10.7150/ijbs.7301
    Three distinct bamboo bat species (Tylonycteris) are known to inhabit tropical and subtropical areas of Asia, i.e., T. pachypus, T. robustula, and T. pygmaeus. This study performed karyotypic examinations of 4 specimens from southern Chinese T. p. fulvidus populations and one specimen from Thai T. p. fulvidus population, which detected distinct karyotypes (2n=30) compared with previous karyotypic descriptions of T. p. pachypus (2n=46) and T. robustula (2n=32) from Malaysia. This finding suggested a cryptic Tylonycteris species within T. pachypus complex in China and Thailand. Morphometric studies indicated the difficulty in distinguishing the cryptic species and T. p. pachypus from Indonesia apart from the external measurements, which might be the reason for their historical misidentification. Based on 623 bp mtDNA COI segments, a phylogeographic examination including T. pachypus individuals from China and nearby regions, i.e., Vietnam, Laos, and Cambodia, was conducted to examine the population genetic structure. Genealogical and phylogeographical results indicated that at least two diverged lineages existed in these regions (average 3.4 % of Kimura 2-parameter distances) and their population structure did not match the geographic pattern. These results suggested that at least two historical colonizations have occurred by the cryptic species. Furthermore, through integration of traditional and geometric morphological results, morphological differences on zygomatic arches, toothrows and bullae were detected between two lineages in China. Given the similarity of vegetation and climate of Guangdong and Guangxi regions, we suggested that such differences might be derived from their historical adaptation or distinct evolutionary history rather than the differences of habitats they occurred currently.
    Matched MeSH terms: Chiroptera/anatomy & histology; Chiroptera/classification; Chiroptera/genetics*
  18. Acoustic divergence in two cryptic Hipposideros species: a role for social selection?
    Kingston T, Lara MC, Jones G, Akbar Z, Kunz TH, Schneider CJ
    Proc Biol Sci, 2001 Jul 7;268(1474):1381-6.
    PMID: 11429138
    We present evidence that a relatively widespread and common bat from South East Asia comprises two morphologically cryptic but acoustically divergent species. A population of the bicoloured leaf-nosed bat (Hipposideros bicolor) from Peninsular Malaysia exhibits a bimodal distribution of echolocation call frequencies, with peaks in the frequency of maximum energy at ca. 131 and 142 kHz. The two phonic types are genetically distinct, with a cytochrome b sequence divergence of just under 7%. We consider the mechanisms by which acoustic divergence in these species might arise. Differences in call frequency are not likely to effect resource partitioning by detectable prey size or functional range. However, ecological segregation may be achieved by differences in microhabitat use; the 131kHz H. bicolor is characterized by significantly longer forearms, lower wing loading, a lower aspect ratio and a more rounded wingtip, features that are associated with greater manoeuvrability in flight that may enable it to forage in more cluttered environments relative to the 142 kHz phonic type. We suggest that acoustic divergence in these species is a consequence of social selection for a clear communication channel, which is mediated by the close link between the acoustic signal and receptor systems imposed by the highly specialized nature of the hipposiderid and rhinolophid echolocation system.
    Matched MeSH terms: Chiroptera/physiology*
  19. [Hepatocystis of Malaysia.--IV. Description of Hepatocystis rodhaini n. sp. parasite of Microchiroptera (author's transl)]
    Landau I, Miltgen F, Le Bail O, Yap LF
    Ann Parasitol Hum Comp, 1976 May-Jun;51(3):303-7.
    PMID: 825011
    A new Haemoproteid of Malaysian Microchiroptera (Hepatochstis rodhaini n. sp.) is described; it is classified in the genus Hepatocystis because of the morphology of its gametocytes and tissue schizonts.
    Matched MeSH terms: Chiroptera/parasitology*
  20. Reproductive biology of Eonycteris spelaea, Dobson (Megachiroptera) in West Malaysia
    Beck AJ, Lim BL
    Acta Trop, 1973;30(4):251-60.
    PMID: 4147874
    Matched MeSH terms: Chiroptera*
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