Future climatically suitable areas for bats in South Asia.

Climate change majorly impacts biodiversity in diverse regions across the world, including South Asia, a megadiverse area with heterogeneous climatic and vegetation regions. However, climate impacts on bats in this region are not well-studied, and it is unclear whether climate effects will follow patterns predicted in other regions. We address this by assessing projected near-future changes in climatically suitable areas for 110 bat species from South Asia. We used ensemble ecological niche modelling with four algorithms (random forests, artificial neural networks, multivariate adaptive regression splines and maximum entropy) to define climatically suitable areas under current conditions (1970-2000). We then extrapolated near future (2041-2060) suitable areas under four projected scenarios (combining two global climate models and two shared socioeconomic pathways, SSP2: middle-of-the-road and SSP5: fossil-fuelled development). Projected future changes in suitable areas varied across species, with most species predicted to retain most of the current area or lose small amounts. When shifts occurred due to projected climate change, new areas were generally northward of current suitable areas. Suitability hotspots, defined as regions suitable for >30% of species, were generally predicted to become smaller and more fragmented. Overall, climate change in the near future may not lead to dramatic shifts in the distribution of bat species in South Asia, but local hotspots of biodiversity may be lost. Our results offer insight into climate change effects in less studied areas and can inform conservation planning, motivating reappraisals of conservation priorities and strategies for bats in South Asia.

A new species of the Miniopterus australis species complex (Chiroptera: Miniopteridae) from the Western Ghats, India.

The genus Miniopterus is highly diverse in cryptic species. Based on integrated approaches of morphometrics, echolocation call analysis, and molecular phylogenetics, we present evidence of a hitherto undescribed species, Srini's Bent-winged bat Miniopterus srinii sp. nov.. The new species, found in the Western Ghats of southern Karnataka, India, closely resembles the Small Bent-winged bat Miniopterus pusillus, found elsewhere in Karnataka, Kerala, and Tamil Nadu, India. Although it shows external similarity with Miniopterus pusillus sensu stricto from the Nicobar Islands, the new species is relatively larger and distinct in craniodental measurements and echolocation call parameters, despite slight overlaps. Importantly, Miniopterus srinii exhibits morphological convergence with Miniopterus pusillus as despite similarities in morphologies, there is a significant genetic distance of 10.84 ± 0.22%. The new cryptic species shares distribution with Miniopterus phillipsi and Miniopterus pusillus in the Western Ghats, further highlighting the need to study both the genus' cryptic diversity, and the region's conservation importance.

Taxonomic status of the Lesser Woolly Horseshoe bats (Chiroptera, Rhinolophidae, Rhinolophus beddomei) in peninsular India and Sri Lanka.

Insularity provides ample opportunities for species diversification. Sri Lanka is home to a large diversity of species, many of which are endemic but morphologically similar to species found in southern India, due to recent speciation events, suggesting a complex evolutionary history. However, in some taxa although morphological diversity has been noted, the genetic level variations are minimal. Among the wide-ranging horseshoe bats such a phenomenon is noted. In this study, we used bioacoustics, morphometric and molecular data to evaluate the relationships between the taxa of lesser woolly horseshoe bats in the India and Sri Lanka. Our study reveals that the two taxa-Rhinolophus beddomei Andersen, 1905 and here we have validated the existing subspecies from peninsular India and R. sobrinus Andersen, 1918 from Sri Lanka are genetically very close to R. perniger Hodgson, 1843. Currently the taxa-beddomei and sobrinus are recognized as subspecies of Rhinolophus beddomei Andersen, 1905. We provide a detailed description of the taxa beddomei and sobrinus as the original descriptions are limited in nature.

Integrated approaches to identifying cryptic bat species in areas of high endemism: The case of Rhinolophus andamanensis in the Andaman Islands.

The diversity of bats worldwide includes large numbers of cryptic species, partly because divergence in acoustic traits such as echolocation calls are under stronger selection than differences in visual appearance in these nocturnal mammals. Island faunas often contain disproportionate numbers of endemic species, and hence we might expect cryptic, endemic species to be discovered relatively frequently in bats inhabiting islands. Species are best defined when multiple lines of evidence supports their diagnosis. Here we use morphometric, acoustic, and molecular phylogenetic data to show that a horseshoe bat in the Andaman Islands is distinct in all three aspects, supporting its status as a distinct species. We recommend investigation into possible new and endemic bat species on islands by using integrated approaches that provide independent lines of evidence for taxonomic distinctiveness. We provide a formal redescription of the taxon newly raised to species level, Rhinolophus andamanensis Dobson, 1872.

No longer supple? Molecular phylogeny suggests generic reassignment of Lygosoma ashwamedhi (Sharma, 1969) (Reptilia: Scincidae).

Morphometrics and phylogenetic analysis based on 12S and 16S ribosomal RNA (rRNA) gene sequences reveal that Riopa ashwamedhi Sharma, 1969 is placed incorrectly in the genus Riopa or Lygosoma, and we transfer this taxon to the genus Eutropis. New material of this rare and endemic species forms the basis of the generic reassignment. A detailed description of E. ashwamedhi (Sharma, 1969) comb. nov. and natural history notes are provided based on the new material collected in Andhra Pradesh, India.

A new species of Cnemaspis (Sauria: Gekkonidae) from Northern Karnataka, India.

A new species of rupicolous gecko of the genus Cnemaspis is described from Hampi, Karnataka, southern India. Cnemaspis adii sp. nov. is diagnosable from all the Indian congeners in possessing the following suite of characters: medium-sized Cnemaspis, SVL less than 35 mm (31.7-34.9). Dorsal scales on the trunk homogeneous, small, granular and feebly keeled. Spine-like tubercles absent on the flanks. Mental subtraingular, two pairs of postmentals, primary pair separated by a single chin shield. Ventral scales on the trunk smooth, imbricate; 22-26 scales across the belly. Supralabial I narrowly in contact with nasal. Dorsal aspect of forelimbs and hindlimbs are weakly unicarinate. Lamellae under the digit IV of pes 20-22. Males with two precloacal pores, two femoral pores on each side of the thigh. The existence of the species in a World Heritage Site with continuous anthropogenic interference ascertains the robustness of the species and need for additional herpetofaunal explorations to reveal the total diversity of species of the genus Cnemaspis in peninsular India.

Taxonomic notes and distribution extension of Durga Das's leaf-nosed bat Hipposiderosdurgadasi Khajuria, 1970 (Chiroptera: Hipposideridae) from south India.

Durga Das's leaf-nosed bat Hipposiderosdurgadasi Khajuria, 1970 is endemic to India, and was known only from Katanga, Katangi, and Richhai villages, in Jabalpur district, Madhya Pradesh. During surveys conducted in Kolar district, Karnataka, India, we successfully mist-netted a few individuals belonging to the bicolor species group which, upon detailed external, craniodental and bacular studies were identified as Durga Das's leaf-nosed bat. This paper reports the presence of this species in southern India, extending its distribution range by almost 1300 km. We also provide a detailed morphological description for this species.