@article {159714, title = {Biodiversity effects on seedling growth are modified by light environment across functional groups.}, journal = {Ecol Appl}, volume = {35}, year = {2025}, month = {2025 Jul}, pages = {e70087}, abstract = {

Numerous studies have shown that biodiversity influences the functioning of ecosystems over space and time. The sensitivity of such biodiversity-ecosystem effects to environmental heterogeneity, however, remains poorly understood. In forests, seedling recruitment is a critical phase of forest dynamics, and this phase is highly sensitive to environmental heterogeneity and biotic interactions with surrounding plants. In closed-canopy forests, local variation in light due to variation in canopy cover can result in heterogeneous microenvironments that can enhance or constrain seedling growth and ultimately forest regeneration. Here, we ask, how do light and seedling diversity influence the growth and biomass gain of seedlings in tropical forests? We tested the effects of and interactions between seedling diversity and light availability on the growth of seedlings consisting of tropical broad-leaved evergreen and deciduous forest species using a fully factorial manipulated experiment in the Andaman Islands, India. We compared results from this manipulated experiment with field observations from a long-term forest plot. We show that during the critical seedling establishment phase, species richness and light availability additively increased biomass accumulation of seedlings in communities consisting of evergreen and deciduous species. Moreover, the positive effect of light on biomass gain was consistent across species in these different functional groups. We conclude that the diversity effect on biomass gain is explained more by species complementarity across conditions rather than by compensatory effects by different species under different light conditions or simple probabilistic effects of including faster growing species in species-rich communities. Taken together, our results show that the potential for biodiversity to increase ecosystem functioning in seedling communities is modified by light availability. Although many factors are often important in designing replanting efforts in forest management or restoration, our results suggest that key factors are likely to be the interaction between neighborhood diversity and canopy-mediated light on forest understory, which can be managed to enhance seedling establishment at the early stages of forestry projects aimed at maintaining forest diversity, composition, and functioning.

}, keywords = {Biodiversity, Biomass, Forests, India, Light, Seedlings, Trees}, issn = {1051-0761}, doi = {10.1002/eap.70087}, author = {Anujan, Krishna and Shabnam, Alisha and Ali, Irfan and Gummadi, Ashok Kumar and Sankaran, Mahesh and Krishnadas, Meghna and Naeem, Shahid} } @article {159713, title = {Effects of sampling methodology on phenology indices: Insights from sites across India and modelling.}, journal = {J Biosci}, volume = {50}, year = {2025}, month = {2025}, abstract = {

Plant phenology is the study of the timing and extent of leaf, flower, and fruit production. Phenology data are used to study the drivers of cyclicity and seasonality of plant life-history stages, interactions with organisms such as pollinators, and effects of global change factors. Indices such as the timing of phenological events, and the proportion of individuals in a particular phenophase, seasonality, and synchrony have often been used to summarise plant phenology data. However, these indices have specific utilities and limitations and may be sensitive to sampling methodology, making cross-site comparisons challenging, particularly when data collection methods vary in terms of sample size, observation frequency, and the resolution at which phenophase intensity scores/values are recorded. We used fruiting phenology data from tropical trees across five sites in India to study the effects of sampling methodology on two indices: population-level synchrony (overlap) and seasonality. We supplemented these results with simulations of fast- and slow-changing phenologies to test for the effects of sampling methodology on these indices. We found that the overlap index is sensitive to the resolution of phenophase intensity measurement, with coarser intensity measures leading to overestimation of the overlap index. The seasonality index, on the other hand, was not affected by intensity resolution. Simulations indicated that finer intensity resolution is more important than frequency of observation to accurately estimate population synchrony and seasonality for fast- and slow-changing phenophases. Based on our findings, we provide recommendations for future study designs of tropical tree phenology research, particularly for long-term or cross-site studies.

}, keywords = {Flowers, Fruit, India, Plant Leaves, Pollination, Seasons, Trees}, issn = {0973-7138}, author = {Tiruvaimozhi, Yadugiri V and Teegalapalli, Karthik and Reddy, Abinand and Murali, Akhil and Datta, Aparajita and Krishnan, Aparna and Ratnam, Jayashree and Sankaran, Mahesh and Ongole, Shasank and Kasinathan, Srinivasan and Raman, T R Shankar and Ramaswami, Geetha} } @article {160485, title = {Founders predict trait evolution and population performance after evolutionary rescue in the red flour beetle.}, journal = {Proc Natl Acad Sci U S A}, volume = {122}, year = {2025}, month = {2025 Sep 09}, pages = {e2506244122}, abstract = {

Evolutionary rescue helps populations survive environmental change, but the phenotypic and demographic factors associated with rescue dynamics and its long-term effects remain unclear. We experimentally evolved 10 wild-collected populations of flour beetles from across India in a suboptimal corn resource for 70 generations (\>5 y), collecting \>10,000 population census points book-ended by measurements of fitness-related traits for 30 experimental lines. Despite clear ancestral trait differences, all lines showed highly parallel evolutionary rescue within 20 generations. Long-term average population size varied across source populations and was positively correlated with ancestral development rate, which increased convergently across populations and emerged as the single best predictor of population performance during and after evolutionary rescue. Notably, specific demographic events during rescue (such as the rate of population decline and recovery) were uncorrelated both with ancestral trait distributions and post-rescue adaptation. Our results support prior work showing founder traits as key predictors of adaptation, and highlight their role in long-term adaptation and trait evolution following evolutionary rescue.

}, keywords = {Adaptation, Physiological, Animals, Biological Evolution, Coleoptera, India, Phenotype, Population Density, Population Dynamics}, issn = {1091-6490}, doi = {10.1073/pnas.2506244122}, author = {Ravi Kumar, Vrinda and Buddh, Shyamsunder and Singhal, Shivansh and Prakash, Arun and Agashe, Deepa} } @article {161985, title = {Linking eras and data: natural history collections as the foundation of India{\textquoteright}s biodiversity science.}, year = {2025}, abstract = {

India, one of the world{\textquoteright}s most biodiverse countries and now the most populous, stands at a critical intersection of ecological wealth and intense anthropogenic pressure. Its unique geological history, once part of Gondwana and later colliding with Asia, has profoundly shaped its biota, resulting in high levels of endemism and evolutionary distinctiveness. Despite a deep cultural reverence for nature, much of India{\textquoteright}s biodiversity, its distribution, evolutionary origins, and future trajectory remain poorly understood. At the heart of shaping a resilient future for biodiversity science in India lies the urgent need for a modern, accessible, and integrated biodiversity research. Here, we assess the current state of biodiversity science in India, drawing from taxonomic and biogeographical studies that rely heavily on natural history collections. For many taxa and ecosystems, data remain scarce or outdated, often based on collections from the 19th and 20th centuries, with critical gaps in molecular, distributional, and phenotypic trait information. Existing data are frequently fragmented, inaccessible, or poorly integrated. These limitations hinder the ability to understand biogeographical patterns or monitor biodiversity change during the Anthropocene. We argue that a national institution dedicated to biodiversity research is urgently needed to coordinate the documentation, analysis, and conservation of India{\textquoteright}s natural heritage for future generations.

}, keywords = {Biodiversity Science, Fossils and living species, India, Natural History Collections}, doi = {https://doi.org/10.1093/biolinnean/blaf100}, author = {Jahnavi, Joshi and Pritha, Dey and Ashwini V, Mohan and Vijay, Barve and Guntupalli V R, Prasad and Anjali, Goswami and Sandeep, Pulla and Navendu, Page and Ishan, Agarwal and Kartik, Shanker and K Praveen, Karanth and Uma, Ramakrishnan and Devapriya, Chattopadhyay} } @article {152898, title = {BharatSim: An agent-based modelling framework for India.}, journal = {PLoS Comput Biol}, volume = {20}, year = {2024}, month = {2024 Dec}, pages = {e1012682}, abstract = {

BharatSim is an open-source agent-based modelling framework for the Indian population. It can simulate populations at multiple scales, from small communities to states. BharatSim uses a synthetic population created by applying statistical methods and machine learning algorithms to survey data from multiple sources, including the Census of India, the India Human Development Survey, the National Sample Survey, and the Gridded Population of the World. This synthetic population defines individual agents with multiple attributes, among them age, gender, home and work locations, pre-existing health conditions, and socio-economic and employment status. BharatSim{\textquoteright}s domain-specific language provides a framework for the simulation of diverse models. Its computational core, coded in Scala, supports simulations of a large number of individual agents, up to 50 million. Here, we describe the design and implementation of BharatSim, using it to address three questions motivated by the COVID-19 pandemic in India: (i) When can schools be safely reopened given specified levels of hybrid immunity?, (ii) How do new variants alter disease dynamics in the background of prior infections and vaccinations? and (iii) How can the effects of varied non-pharmaceutical interventions (NPIs) be quantified for a model Indian city? Through its India-specific synthetic population, BharatSim allows disease modellers to address questions unique to this country. It should also find use in the computational social sciences, potentially providing new insights into emergent patterns in social behaviour.

}, keywords = {Algorithms, Computational Biology, Computer Simulation, COVID-19, Humans, India, Machine Learning, Pandemics, SARS-CoV-2, Systems Analysis}, issn = {1553-7358}, doi = {10.1371/journal.pcbi.1012682}, author = {Cherian, Philip and Kshirsagar, Jayanta and Neekhra, Bhavesh and Deshkar, Gaurav and Hayatnagarkar, Harshal and Kapoor, Kshitij and Kaski, Chandrakant and Kathar, Ganesh and Khandekar, Swapnil and Mookherjee, Saurabh and Ninawe, Praveen and Noronha, Riz Fernando and Ranka, Pranjal and Sinha, Vaibhhav and Vinod, Tina and Yadav, Chhaya and Gupta, Debayan and Menon, Gautam I} } @article {152137, title = {Description of Protosticta khasia sp. nov. and Yunnanosticta siangi sp. nov., with new records of P. samtsensis Gurung \& Phan, 2023 from Northeast India (Odonata: Zygoptera: Platystictidae).}, journal = {Zootaxa}, volume = {5448}, year = {2024}, month = {2024 May 13}, pages = {348-370}, abstract = {

Protosticta Selys is a genus of damselflies of the family Platystictidae Kennedy found in forests of tropical Southeast Asia. The genus Protosticta has rarely been reported from Northeast India. In this paper, we describe Protosticta khasia sp. nov. (subfamily Protostictinae Dijkstra et al.) based on holotype male and paratype female collected from Maraikaphon, East Khasi Hills district, Meghalaya, India. Protosticta khasia can be identified by the markings of the prothorax and the shape of the male paraproct with two arms. We also describe Yunnanosticta siangi sp. nov. (subfamily Sinostictinae Wilson) from Arunachal Pradesh, India, based on two males and two females. This species is differentiated from its congeners by the thoracic and abdominal markings as well as the shape of male caudal appendages. The key for males of Yunnanosticta is provided. Additionally, we provide new records of Protosticta samtsensis Gurung \& Phan, along with an updated key to the Protosticta species of Northeast India.

}, keywords = {Animal Distribution, Animal Structures, Animals, Body Size, Ecosystem, Female, India, Male, Odonata, Organ Size}, issn = {1175-5334}, doi = {10.11646/zootaxa.5448.3.2}, author = {Joshi, Shantanu and Sarkar, Vivek and Sawant, Dattaprasad and Pawar, Ujwala and Kunte, Krushnamegh} } @article {152135, title = {Devadatta adii sp. nov. (Odonata: Zygoptera: Devadattidae) from Upper Siang District, Arunachal Pradesh, India.}, journal = {Zootaxa}, volume = {5519}, year = {2024}, month = {2024 Oct 10}, pages = {571-589}, abstract = {

We erect a new species Devadatta adii sp. nov. based on five males and five females collected from Upper Siang District, Arunachal Pradesh, India. The males of the new taxon are unique in terms of having a golden yellow lateral pterothorax, strongly curved cerci and filamentous genital ligula. We also provide illustrations of male thorax and caudal appendages of Devadatta spp..

}, keywords = {Animal Distribution, Animal Structures, Animals, Body Size, Female, India, Male, Odonata, Organ Size}, issn = {1175-5334}, doi = {10.11646/zootaxa.5519.4.6}, author = {Sawant, Dattaprasad and Joshi, Shantanu and Pawar, Ujwala and Naik, Pratiksha and Khan, Fahim and Nawge, Viraj and Kunte, Krushnamegh} } @article {152146, title = {Mitochondrial genetic diversity of pest and vector species, Frankliniella schultzei (Thripidae: Thripinae).}, journal = {Mol Biol Rep}, volume = {52}, year = {2024}, month = {2024 Dec 17}, pages = {55}, abstract = {

BACKGROUND: Frankliniella schultzei (Trybom) is a serious pest and a carrier of tospoviruses in major agricultural crops. This species is a historical and unresolved species complex that contains genetically different cryptic species across the globe.

METHODS AND RESULTS: DNA barcodes were generated from freshly collected specimens of F. schultzei from India and Australia using the sanger sequencing. Seventy-five COI sequences were generated from India and Australia. Moreover, 318 sequences were downloaded (India, Australia, Pakistan, and Africa) from the NCBI GenBank to explore the genetic diversity and phylogeny. The minimum and maximum mean interspecific distance between 393 sequences was found to be 7.97\% and 21.50\%, respectively. Bayesian and Neighbour joining clustering indicated the presence of five putative species within F. schultzei that had sympatry and allopatry. Moreover, 20 haplotypes and 140 polymorphic sites were identified. The African clade is unique; it does not share haplotypes with any other countries, suggesting it may represent the true F. schultzei. Haplotype network analysis showed shallow gene flow and deep genetic variation between the populations. Signatures of recent population history events were measured using Fu{\textquoteright}s Fs test and Tajima{\textquoteright}s D test. Morphometric analysis based on seven characters is also carried out.

CONCLUSION: Phylogeny and genetic distance revealed the presence of five putative species within F. schultzei. On the contrary, morphology does not unequivocally corroborate the phylogenetic results, as morphometric analysis showed overlap among these clades. To resolve F. schultzei species complex, whole genome-based sequencing data are very much necessitated.

}, keywords = {Animals, Australia, Bayes Theorem, DNA Barcoding, Taxonomic, DNA, Mitochondrial, Gene Flow, Genetic Variation, Haplotypes, India, Insect Vectors, Mitochondria, Phylogeny, Thysanoptera}, issn = {1573-4978}, doi = {10.1007/s11033-024-10108-4}, author = {Singha, Devkant and Patidar, Abhishek and Pal, Shash and Tyagi, Kaomud and Kumar, Vikas} } @article {150948, title = {Monitoring Influenza A (H1N1, H3N2), RSV, and SARS-CoV-2 Using Wastewater-Based Epidemiology: A 2-Year Longitudinal Study in an Indian Megacity Covering Omicron and Post-Omicron Phases.}, journal = {Food Environ Virol}, volume = {17}, year = {2024}, month = {2024 Nov 19}, pages = {3}, abstract = {

The bourgeoning field of wastewater-based epidemiology (WBE) for the surveillance of several respiratory viruses which includes Influenza A, H1N1pdm09, H3N2, respiratory syncytial viruses (RSV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is of interest for public health concerns. However, there are few long-term monitoring studies globally. In this study, respiratory viruses were detected and quantified from 11 sewer sheds by utilizing reverse transcription-quantitative polymerase chain reaction analysis in Pune city, India, from Jan 2022 to Dec 2023. The RNA fragments of respiratory viruses were detected in sewage samples before clinical cases were reported, underscoring the potential of WBE for early detection and monitoring within the population. The Spearman correlation of wastewater viral copies was positively and significantly correlated with the clinically positive case of H1N1pdm09 (ρ = 0.55, p = 1.4 {\texttimes} 10), H3N2 (ρ = 0.25, p = 9.9 {\texttimes} 10), and SARS-CoV-2 (ρ = 0.43, p = 4.1 {\texttimes} 10). The impact of public health interventions on the circulation of infectious respiratory diseases showed a significant difference in the viral load during the period when many preventing measures were carried out against the COVID-19 pandemic (restriction phase), compared to the period when no such preventive measures are followed (no-restriction phase) for Influenza A, H1N1pdm09, H3N2, and RSV with p-value \< 0.05, which indicates the influence of health policy implementation in controlling disease spread. The present study provides an effective approach to detecting multiple respiratory viruses from wastewater and provides insights into the epidemiology of respiratory illnesses. The WBE aids in providing information on the spread of pathogens (viruses) in the community, offering a proactive strategy for public health management, allowing for timely interventions and implementing targeted measures to mitigate the spread of these viruses under one health approach.

}, keywords = {Cities, COVID-19, Humans, India, Influenza A Virus, H1N1 Subtype, Influenza A Virus, H3N2 Subtype, Influenza, Human, Longitudinal Studies, Respiratory Syncytial Virus Infections, Respiratory Syncytial Viruses, SARS-CoV-2, Sewage, Wastewater, Wastewater-Based Epidemiological Monitoring}, issn = {1867-0342}, doi = {10.1007/s12560-024-09618-y}, author = {Pramanik, Rinka and Nannaware, Kiran and Malik, Vinita and Shah, Priyanki and Sangewar, Poornima and Gogate, Niharika and Shashidhara, L S and Boargaonkar, Radhika and Patil, Dhawal and Kale, Saurabh and Bhalerao, Asim and Jain, Nidhi and Kamble, Sanjay and Dastager, Syed and Dharne, Mahesh} } @article {131933, title = {A new species of Piarosoma Hampson, 1893 (Lepidoptera, Zygaenidae, Procridinae, Artonini) from Arunachal Pradesh, India.}, journal = {Zootaxa}, volume = {5270}, year = {2024}, month = {2023 Apr 19}, pages = {139-145}, abstract = {

A new species, Piarosoma arunachalensis sp. nov., is described and illustrated based on external characters and the genitalia of two male specimens from Tale Wildlife Sanctuary, Lower Subansiri District, Arunachal Pradesh, India. The new species is distinguished from other Piarosoma by a combination of: a) presence of large hyaline patches on the wings, b) the absence of any white or yellow markings on the patagia and the abdominal segments, and c) differences in male genitalia.

}, keywords = {Animals, Animals, Wild, Genitalia, Genitalia, Male, India, Lepidoptera, Male, Moths}, issn = {1175-5334}, doi = {10.11646/zootaxa.5270.1.9}, author = {Sondhi, Sanjay and Efetov, Konstantin A and Tarmann, Gerhard M and Karmakar, Tarun and Pawar, Ujwala and Kunte, Krushnamegh} } @article {139056, title = {A new species of silverline butterfly, Cigaritis Donzel, 1847 (Lepidoptera: Lycaenidae), from the Western Ghats biodiversity hotspot, India.}, journal = {Zootaxa}, volume = {5399}, year = {2024}, month = {2024 Jan 10}, pages = {85-95}, abstract = {

A new species, Cigaritis conjuncta sp. nov. (Lepidoptera: Lycaenidae), is described based on five male and four female specimens from Honey Valley, Kodagu District, Karnataka, which is part of the Western Ghats biodiversity hotspot, India. Cigaritis conjuncta sp. nov. is distinguished from all other congeners in India and Sri Lanka based on the following combination of diagnostic characters in the male: (a) dorsal forewing outer half, costal margin and nearly upper half of the cell black without orange markings, the remaining wing shining deep blue, (b) dorsal hindwing tornus pale orange-red with two black spots, (c) ventral forewing bands at end of discal cell conjoined, and (e) ventral hindwing subbasal and discal bands composed of spots that are not separated but conjoined to form broad bands that have irregular outlines, leaving only a narrow background colour in between. Female is similar on the ventral side, but entirely dark brown above. Male and female genitalia are dissected and figured for two paratypes of each sex, and natural history notes on the species are provided.

}, keywords = {Animals, Biodiversity, Butterflies, Female, India, Lepidoptera, Male}, issn = {1175-5334}, doi = {10.11646/zootaxa.5399.1.7}, author = {Kunte, Krushnamegh and Sengupta, Ashok and Pawar, Ujwala and Nawge, Viraj} } @article {152136, title = {Two new taxa of brush-footed butterflies (Lepidoptera: Nymphalidae) from the Western Ghats biodiversity hotspot, southern India.}, journal = {Zootaxa}, volume = {5543}, year = {2024}, month = {2024 Dec 04}, pages = {343-367}, abstract = {

A new species, Amathusia travancorica sp. nov. (Nymphalidae: Satyrinae: Amathusiini), and a new subspecies, Athyma inara sahyadriensis ssp. nov. (Nymphalidae: Limenitidinae: Limenitidini), are described from the Western Ghats biodiversity hotspot, India, based on multiple male and female specimens. The new taxa are compared with type specimens of related species and subspecies, revealing consistent differences that distinguish the new taxa. Genitalia dissections are also provided as comparative materials. Additional information is provided on historical records, distributional ranges, habits and habitat, phenology, larval host plants, and early stages. Finally, the type locality and synonymy of Pantoporia mera Swinhoe, 1917 are discussed based on comparison of type specimens (Pantoporia mera Swinhoe, 1917 syn. nov.=Athyma inara Westwood, 1850).

}, keywords = {Animal Distribution, Animal Structures, Animals, Biodiversity, Body Size, Butterflies, Ecosystem, Female, India, Larva, Male, Organ Size}, issn = {1175-5334}, doi = {10.11646/zootaxa.5543.3.3}, author = {Kunte, Krushnamegh and Basu, Dipendra Nath} } @article {135864, title = {Nutritional properties of giant water bug, a traditional edible insect species of North-East India.}, journal = {Bioengineered}, volume = {14}, year = {2023}, month = {2023 Dec}, pages = {2252669}, abstract = {

Edible insects play an important role in human health and food security. Among those, the Giant water bug, (Lep.\& Ser.) is a widely used edible insect known for its aroma, flavor, and therapeutic purposes. In the present study, we investigated the nutritional profile, natural habitat, and feeding behavior of in aquarium conditions. A comparative analysis of male and female insects{\textquoteright} aroma contents and fatty acid (FA) profiles was also conducted. A dry fried male insect yielded volatile oil of 0.96\%/2 g body weight, whereas a dry fried female yielded 0.48\%/5.36 g of body weight. In terms of lipids, fresh male insects had 0.15\%/5.42 g of body weight and fresh female insects had 0.28\%/9.48 g of body weight. There are 24 volatile compounds specific to males, 37 specific to females, and 13 commons to both were identified. 2-Hexen-1-ol, acetate, (Z)- which smells like banana, was prevalently found in males while 4-Octene, 2,6-dimethyl-, [S-(Z)] was prevalently found in female insects. Fatty acids profile analysis detected 32 FA with 12 unique FA from males whereas 22 FA and 3 unique FA were identified from female insects. The SFA percentage present in males and females was 77.44\% and 85.21\%. Males had 6.78\% MUFA content while females have 4.75\%. Males have 18\% PUFA content enriched with DHA, and EPA, while females had 10.04\%. This study revealed that with the presence of a banana-like smell of volatile compound and more MUFA and PUFA in males, the native people of North-East India preferred male over female insects for entomophagy.

}, keywords = {Animals, Body Weight, Edible Insects, Feeding Behavior, Female, India, Male, Nutritive Value}, issn = {2165-5987}, doi = {10.1080/21655979.2023.2252669}, author = {Devi, Mutum R and Ummalyma, Sabeela B and Brockmann, Axel and Raina, Vishakha and Rajashekar, Yallappa} } @article {133177, title = {Winter foraging ecology of stump-tailed macaques in the Hollongapar Gibbon Sanctuary, Assam, India.}, journal = {J Biosci}, volume = {48}, year = {2023}, month = {2023}, abstract = {

Frugivorous primates in temperate and subtropical regions often experience a shortage or complete absence of fruits for several months of the year. We studied the foraging ecology of a group of stump-tailed macaques in a subtropical forest during winter, when fruit abundance was low. We conducted this study in the Hollongapar Gibbon Sanctuary, Assam, India, from December 2015 to April 2016. We estimated the time-activity budgets, diet, and habitat use of the study troop and also conducted vegetation sampling and phenological monitoring of the study area. The stump-tailed macaque troop spent about 73.2\% of its time foraging and feeding, with seasonal differences in food species intake and in habitat use. Open degraded forests were primarily used in December, January, and February, when the macaques largely fed on shoots of the bamboo and roots of the herb , while they mostly utilised in canopy-covered, degraded forests in March and April. There was a major shift from a primary diet of fruits in the wet season, reported from earlier studies, to possibly relatively poorquality, but abundant, shoots and roots in winter. This suggests that the consumption of these poor-quality fallback food species is a key dietary adaptation of the macaques to periods of fruit scarcity. Although our preliminary study suggests that the feeding behaviour of the stump-tailed macaque in its subtropical semievergreen forest habitat appears to be similar to that of its congeneric species in temperate forests, further investigations are needed to firmly establish the observed foraging patterns of this vulnerable cercopithecine species in its last lowland rainforest refuge in northeastern India.

}, keywords = {Animals, Hylobates, India, Macaca, Macaca arctoides, Seasons}, issn = {0973-7138}, author = {Stotrabhashyam, Swetha and Sharma, Narayan and Kumar, Ajith and Sinha, Anindya} } @article {109678, title = {How methodological changes have influenced our understanding of population structure in threatened species: insights from tiger populations across India.}, journal = {Philos Trans R Soc Lond B Biol Sci}, volume = {377}, year = {2022}, month = {2022 Jun 06}, pages = {20200418}, abstract = {

Unprecedented advances in sequencing technology in the past decade allow a better understanding of genetic variation and its partitioning in natural populations. Such inference is critical to conservation: to understand species biology and identify isolated populations. We review empirical population genetics studies of Endangered Bengal tigers within India, where 60-70\% of wild tigers live. We assess how changes in marker type and sampling strategy have impacted inferences by reviewing past studies, and presenting three novel analyses including a single-nucleotide polymorphism (SNP) panel, genome-wide SNP markers, and a whole-mitochondrial genome network. At a broad spatial scale, less than 100 SNPs revealed the same patterns of population clustering as whole genomes (with the exception of one additional population sampled only in the SNP panel). Mitochondrial DNA indicates a strong structure between the northeast and other regions. Two studies with more populations sampled revealed further substructure within Central India. Overall, the comparison of studies with varied marker types and sample sets allows more rigorous inference of population structure. Yet sampling of some populations is limited across all studies, and these should be the focus of future sampling efforts. We discuss challenges in our understanding of population structure, and how to further address relevant questions in conservation genetics. This article is part of the theme issue {\textquoteright}Celebrating 50 years since Lewontin{\textquoteright}s apportionment of human diversity{\textquoteright}.

}, keywords = {Animals, Conservation of Natural Resources, Endangered Species, Genetic Variation, Genetics, Population, India, Prospective Studies, Tigers}, issn = {1471-2970}, doi = {10.1098/rstb.2020.0418}, author = {Aylward, Megan and Sagar, Vinay and Natesh, Meghana and Ramakrishnan, Uma} } @article {109311, title = {Three new and notes on two other jumping spider species of the genus Stenaelurillus Simon, 1886 (Salticidae: Aelurillina) from the Deccan Plateau, India.}, journal = {Zootaxa}, volume = {5125}, year = {2022}, month = {2022 Apr 07}, pages = {1-19}, abstract = {

We describe three new species of Stenaelurillus Simon, 1886 from the Deccan Plateau of India, and report on populations of S. sarojinae Caleb Mathai, 2014 and S. marusiki Logunov, 2001. One of the new species, S. shwetamukhi Marathe, Sanap, Maddison, sp. nov., has black-and-white markings, characteristic of several other Indian Stenaelurillus species. The other two new species, S. tamravarni Marathe Maddison, sp. nov., and S. vyaghri Sanap, Joglekar, Caleb, sp. nov., are colourful and with fringed male abdomens, like several other Indian species including S. sarojinae. The population of S. sarojinae from Mysuru, Karnataka, shows colours distinct from the population at the type locality. The female of S. marusiki is described for the first time.

}, keywords = {Animal Distribution, Animals, Female, India, Male, Spiders}, issn = {1175-5334}, doi = {10.11646/zootaxa.5125.1.1}, author = {Marathe, Kiran and Sanap, Rajesh and Joglekar, Anuradha and Caleb, John T D and Maddison, Wayne P} } @article {84066, title = {Three new species of Protosticta Selys, 1885 (Odonata: Zygoptera: Platystictidae) from the Western Ghats, India, with taxonomic notes on P. mortoni Fraser, 1922 and rediscovery of P. rufostigma Kimmins, 1958.}, journal = {Zootaxa}, volume = {4858}, year = {2020}, month = {2020 Sep 30}, pages = {zootaxa.4858.2.1}, abstract = {

Three new species of Protosticta Selys, 1885 (Odonata: Zygoptera: Platystictidae) from the Western Ghats biodiversity hotspot in India: P. cyanofemora sp. nov. (wet evergreen forests in Shendurney Wildlife Sanctuary, Kollam, Kerala and Kalakkad Mundanthurai Tiger Reserve, Tirunelveli, Tamil Nadu), P. myristicaensis sp. nov. (Myristica swamp at Kathalekan, Shivamogga, Karnataka) and P. sholai sp. nov. (montane sholas of Upper Manalar, Meghamalai Wildlife Sanctuary, Theni, Tamil Nadu) are described and illustrated. We compare these three new species with other Protosticta spp. from the Western Ghats based on new material and provide comprehensive differential diagnoses with determination key for males of all species occurring in the Western Ghats. The taxonomic validity of P. mortoni Fraser, 1922 is established with fresh specimens from Hassan, Karnataka, and rediscovery of P. rufostigma Kimmins, 1958 is reported from Kanyakumari Wildlife Sanctuary, Tamil Nadu.

}, keywords = {Animals, Animals, Wild, Biodiversity, Forests, India, Male, Odonata}, issn = {1175-5334}, doi = {10.11646/zootaxa.4858.2.1}, author = {Joshi, Shantanu and Subramanian, K A and Babu, R and Sawant, Dattaprasad and Kunte, Krushnamegh} } @article {78093, title = {Two more new Hemiphyllodactylus Bleeker, 1860 (Squamata: Gekkonidae)~from Tamil Nadu, India.}, journal = {Zootaxa}, volume = {4729}, year = {2020}, month = {2020 Jan 29}, pages = {zootaxa.4729.2.6}, abstract = {

Two new species of the gekkonid genus Hemiphyllodactylus are described from mountains of the Western Ghats in Tamil Nadu, southern India. Hemiphyllodactylus nilgiriensis sp. nov. and H. peninsularis sp. nov. are \> 5 \% divergent in the mitochondrial ND2 gene from each other and members of the H. aurantiacus complex and differ from each other and members of the H. aurantiacus complex in several meristic characters and colouration. The description of these two new species takes the number of Indian Hemiphyllodactylus to six and the number of endemic geckos from Tamil Nadu to 15.

}, keywords = {Animals, Genes, Mitochondrial, India, Lizards, Phylogeny, Records}, issn = {1175-5334}, doi = {10.11646/zootaxa.4729.2.6}, author = {Agarwal, Ishan and Bauer, Aaron M and Pal, Saunak and Srikanthan, Achyuthan N and Khandekar, Akshay} } @article {74435, title = {Edge effects reduce α-diversity but not β-diversity during community assembly in a human-modified tropical forest.}, journal = {Ecol Appl}, volume = {29}, year = {2019}, month = {2019 12}, pages = {e01996}, abstract = {

Edge effects can alter the spatial organization of diversity in fragmented habitats. For tropical forests, however, there has been large variation in the strength and direction of such effects reported by different studies. For long-lived organisms like trees, one reason for inconsistent patterns might be due to most studies having examined patterns of diversity and compositional variation in older life stages that bear the legacy of a forest past. Younger life stages can reveal ongoing processes of assembly, but multi-stage examinations are rare. For seedling, sapling, and adult life stages of trees in a human-modified wet tropical forest in the Western Ghats Biodiversity Hotspot (India), we examined how proximity to forest edges (edge influence) modified the spatial organization of diversity. Specifically, for each life stage we tested whether edge influence led to loss of α- and γ-diversity and decreased β-diversity in this landscape. We found lower α- and γ-diversity closer to forest edges, but only for seedlings. Seedling composition at 90-100\ m from forest edges diverged from composition of sites within 60\ m, suggesting that edge influence restricted the recruitment of some species to interior sites. In contrast, β-diversity was greater near edges than interior forest for all life stages and most prominently for seedlings. Furthermore, β-diversity at edges was primarily driven by species turnover, suggesting either marked species-environment associations or dispersal limitation. Low turnover at 90-100\ m implies that β-diversity arose from stochastic fluctuations in occurrences and abundances of the same species set. Overall, we find that high β-diversity structured spatial patterns of diversity near edges, but recruitment bottlenecks are likely to reduce alpha diversity of forest fragments. Our results also corroborate the need to maintain sufficiently large areas of tropical forest free from edge effects to avoid the loss of interior forest species. To improve landscape-scale diversity of fragmented landscapes, restoration efforts should focus on recovery of species that are unable to regenerate near forest edges.

}, keywords = {Aged, Biodiversity, Ecosystem, Forests, Humans, India, Trees, Tropical Climate}, issn = {1051-0761}, doi = {10.1002/eap.1996}, author = {Krishnadas, Meghna and Kumar, Arun N and Comita, Liza S} } @article {67827, title = {On the systematic status of the genus Oriocalotes G{\"u}nther, 1864~(Squamata: Agamidae: Draconinae) with the description of a new species from Mizoram state, Northeast India.}, journal = {Zootaxa}, volume = {4638}, year = {2019}, month = {2019 Jul 18}, pages = {zootaxa.4638.4.1}, abstract = {

The montane agamid lizard genus Oriocalotes is currently considered monotypic, represented by the species, O. paulus. The systematic status of this taxon has remained questionable since its initial descriptions in the mid-1800s. A detailed molecular and morphological study was carried out to assess the validity of this genus, and its systematic position within the Asian agamid subfamily, Draconinae. Freshly collected and historical museum specimens from the type locality of O. paulus were examined morphologically, along with additional samples collected from localities in Mizoram state, Northeast India. Utilising newly generated molecular sequences (two mitochondrial and three nuclear genes), combined with those previously published for representative genera from the subfamilies Draconinae and Agaminae, Maximum Likelihood and Bayesian phylogenetic trees were constructed. Phylogenetic results suggest that Oriocalotes is part of the widespread South and Southeast Asian radiation of Calotes. Comparative morphological studies (including external morphology, hemipenis and osteology) between Oriocalotes and related genera further support this systematic placement. Oriocalotes is herein regarded as a junior subjective synonym of Calotes. Calotes paulus comb. nov. is also assigned a lectotype and given a detailed redescription based on the lectotype, paralectotypes and additional topotypic material. Furthermore, the specimens collected from Mizoram populations are found to be morphologically and genetically distinct from Calotes paulus comb. nov., and are described herein as a new species, Calotes zolaiking sp. nov.

}, keywords = {Animals, Bayes Theorem, India, Lizards, Osteology, Phylogeny}, issn = {1175-5334}, doi = {10.11646/zootaxa.4638.4.1}, author = {Giri, Varad B and Chaitanya, R and Mahony, Stephen and Lalrounga, Samuel and Lalrinchhana, C and Das, Abhijit and Sarkar, Vivek and Karanth, Praveen and Deepak, V} } @article {36275, title = {The curious case of Hemidactylus gujaratensis (Squamata: Gekkonidae).}, journal = {Zootaxa}, volume = {4388}, year = {2018}, month = {2018 Feb 28}, pages = {137-142}, abstract = {

Hemidactylus Oken, 1817 is one of the most speciose genera of the family Gekkonidae with more than 140 described species (Uetz et al. 2016). While this genus naturally occurs across the tropics and subtropics, a substantial part of its distribution also results from human-mediated dispersal. Carranza Arnold (2006) retrieved five broad clades in a global phylogeny of Hemidactylus, one of which has species distributed in tropical Asia. Subsequent work by Bauer et al. (2010) and Bansal Karanth (2010) revealed that the species from tropical Asia fell into two deeply divergent and potentially non-sister sub-clades-one comprising a large radiation confined to peninsular India and Sri Lanka (the Indian radiation, IR), and the other comprising species largely distributed in Southeast (SE) Asia.

}, keywords = {Animals, India, Lizards, Phylogeny, Sri Lanka}, issn = {1175-5334}, doi = {10.11646/zootaxa.4388.1.11}, author = {Lajmi, Aparna and Datta-Roy, Aniruddha and Vyas, Raju and Agarwal, Ishan and Karanth, Praveen} } @article {45430, title = {Physiological stress responses in wild Asian elephants Elephas maximus in a human-dominated landscape in the Western Ghats, southern India.}, journal = {Gen Comp Endocrinol}, volume = {266}, year = {2018}, month = {2018 09 15}, pages = {150-156}, abstract = {

Increasing anthropogenic pressures on forests, especially in the tropical regions of the world, have restricted several large mammalian species such as the Asian elephant to fragmented habitats within human-dominated landscapes. In this study, we assessed the effects of an anthropogenic landscape and its associated conflict with humans on the physiological stress responses displayed by Asian elephants in the Anamalai Hills of the Western Ghats mountains in south India. We have quantified faecal glucocorticoid metabolite (FGM) concentrations in focal individual elephants within and across herds, inhabiting both anthropogenic and natural habitats, and evaluated their physiological responses to different socio-ecological situations between November 2013 and April 2014. Physiological stress responses varied significantly among the tested elephant age- and sex categories but not across different types of social organisation. Adults generally showed higher FGM concentrations, even in the absence of stressors, than did any other age category. Males also appeared to have higher stress responses than did females. Although there was no significant variation in mean stress levels between elephants on the plateau in the absence of human interactions and those in adjacent, relatively undisturbed forest habitats, FGM concentrations increased significantly for adult and subadult individuals as well as for calves following drives, during which elephants were driven off aggressively by people. Our study emphasises the general importance of understanding individual variation in physiology and behaviour within a population of a seriously threatened mammalian species, the Asian elephant, and specifically highlights the need for long-term monitoring of the stress physiology and behavioural responses of individual elephants across both human-dominated and natural landscapes. Such studies would not only provide comprehensive insights into the adaptive biology of elephants in changing ecological regimes but also aid in the development of effective management and conservation strategies for endangered populations of the species.

}, keywords = {Animals, Animals, Wild, Elephants, Feces, Female, Forests, Geography, Glucocorticoids, Humans, India, Linear Models, Male, Metabolome, Models, Biological, Stress, Physiological}, issn = {1095-6840}, doi = {10.1016/j.ygcen.2018.05.009}, author = {Vijayakrishnan, Sreedhar and Kumar, Mavatur Ananda and Umapathy, G and Kumar, Vinod and Sinha, Anindya} } @article {910, title = {Commensalism facilitates gene flow in mountains: a comparison between two Rattus species.}, journal = {Heredity (Edinb)}, volume = {115}, year = {2015}, month = {2015 Sep}, pages = {253-61}, abstract = {

Small mammal dispersal is strongly affected by geographical barriers. However, commensal small mammals may be passively transported over large distances and strong barriers by humans (often with agricultural products). This pattern should be especially apparent in topographically complex landscapes, such as mountain ranges, where valleys and/or peaks can limit dispersal of less vagile species. We predict that commensal species would have lower genetic differentiation and higher migration rates than related non-commensals in such landscapes. We contrasted population genetic differentiation in two sympatric Rattus species (R. satarae and R. rattus) in the Western Ghats mountains in southern India. We sampled rats from villages and adjacent forests in seven locations (20-640 km apart). Capture-based statistics confirmed that R. rattus is abundant in human settlements in this region, whereas R. satarae is non-commensal and found mostly in forests. Population structure analyses using ~970-bp mitochondrial control region and 17 microsatellite loci revealed higher differentiation for the non-commensal species (R. satarae F-statistics=0.420, 0.065, R. rattus F-statistics=0.195, 0.034; mitochondrial DNA, microsatellites, respectively). Genetic clustering analyses confirm that clusters in R. satarae are more distinct and less admixed than those in R. rattus. R. satarae shows higher slope for isolation-by-distance compared with R. rattus. Although mode of migration estimates do not strongly suggest higher rates in R. rattus than in R. satarae, they indicate that migration over long distances could still be higher in R. rattus. We suggest that association with humans could drive the observed pattern of differentiation in the commensal R. rattus, consequently impacting not only their dispersal abilities, but also their evolutionary trajectories.

}, keywords = {Animal Distribution, Animals, Cluster Analysis, DNA, Mitochondrial, Ecosystem, Gene Flow, Genetic Variation, Genetics, Population, Geography, India, Microsatellite Repeats, Molecular Sequence Data, Rats, Sequence Analysis, DNA, Sympatry}, issn = {1365-2540}, doi = {10.1038/hdy.2015.34}, author = {Varudkar, A and Ramakrishnan, U} } @article {893, title = {Cryptic diversity and habitat partitioning in an economically important aphid species complex.}, journal = {Infect Genet Evol}, volume = {30}, year = {2015}, month = {2015 Mar}, pages = {230-7}, abstract = {

Cardamom Bushy Dwarf Virus (CBDV) is an aphid-borne nanovirus which infects large cardamom, Amomum subulatum (Zingiberaceae family), in the Himalayan foothills of Northeast India, Nepal and Bhutan. Two aphid species have been reported to transmit CBDV, including Pentalonia nigronervosa and Micromyzus kalimpongensis (also described as Pentalonia kalimpongensis). However, P. nigronervosa was recently split into two species which exhibit different host plant affiliations. Whilst P. nigronervosa primarily feeds on banana plants, Pentaloniacaladii (previously considered a {\textquoteright}form{\textquoteright} of P. nigronervosa) typically feeds on plants belonging to the Araceae, Heliconiaceae and Zingiberaceae families. This raises the possibility that CBDV vectors that were originally described as P. nigronervosa correspond to P. caladii. Accurate identification of vector species is important for understanding disease dynamics and for implementing management strategies. However, closely related species can be difficult to distinguish based on morphological characteristics. In this study, we used molecular markers (two mitochondrial loci and one nuclear locus) and Bayesian phylogenetic analyses to identify aphid specimens collected from 148 CBDV infected plants at a range of locations and elevations throughout Sikkim and the Darjeeling district of West Bengal (Northeast India). Our results revealed the presence of a diversity of lineages, comprising up to six distinct species in at least two related genera. These included the three species mentioned above, an unidentified Pentalonia species and two lineages belonging to an unknown genus. Surprisingly, P. caladii was only detected on a single infected plant, indicating that this species may not play an important role in CBDV transmission dynamics. Distinct elevation distributions were observed for the different species, demonstrating that the community composition of aphids which feed on large cardamom plants changes across an elevation gradient. This has implications for understanding how competent vector species could influence spatial and temporal transmission patterns of CBDV.

}, keywords = {Animals, Aphids, Babuvirus, Ecosystem, Elettaria, India, Insect Vectors, Musa, Phylogeny, Plant Diseases}, issn = {1567-7257}, doi = {10.1016/j.meegid.2014.12.020}, author = {Savory, F R and Ramakrishnan, U} } @article {1001, title = {Islands within islands: two montane palaeo-endemic birds impacted by recent anthropogenic fragmentation.}, journal = {Mol Ecol}, volume = {24}, year = {2015}, month = {2015 Jul}, pages = {3572-84}, abstract = {

Anthropogenic habitat fragmentation of species that live in naturally patchy metapopulations such as mountaintops or sky islands experiences two levels of patchiness. Effects of such multilevel patchiness on species have rarely been examined. Metapopulation theory suggests that patchy habitats could have varied impacts on persistence, dependent on differential migration. It is not known whether montane endemic species, evolutionarily adapted to natural patchiness, are able to disperse between anthropogenic fragments at similar spatial scales as natural patches. We investigated historic and contemporary gene flow between natural and anthropogenic patches across the distribution range of a Western Ghats sky-island-endemic bird species complex. Data from 14 microsatellites for 218 individuals detected major genetic structuring by deep valleys, including one hitherto undescribed barrier. As expected, we found strong effects of historic genetic differentiation across natural patches, but not across anthropogenic fragments. Contrastingly, contemporary differentiation (D(PS)) was higher relative to historic differentiation (F(ST)) in anthropogenic fragments, despite the species{\textquoteright} ability to historically traverse shallow valleys. Simulations of recent isolation resulted in high D(PS)/F(ST) values, confirming recent isolation in Western Ghats anthropogenic fragments and also suggesting that this ratio can be used to identifying recent fragmentation in the context of historic connectedness. We suggest that in this landscape, in addition to natural patchiness affecting population connectivity, anthropogenic fragmentation additionally impacts connectivity, making anthropogenic fragments akin to islands within natural islands of montane habitat, a pattern that may be recovered in other sky-island systems.

}, keywords = {Animal Distribution, Animals, Computer Simulation, Conservation of Natural Resources, Ecosystem, Gene Flow, Genetic Variation, Genetics, Population, Geography, India, Microsatellite Repeats, Passeriformes, Phylogeography, Sequence Analysis, DNA}, issn = {1365-294X}, doi = {10.1111/mec.13266}, author = {Robin, V V and Gupta, Pooja and Thatte, Prachi and Ramakrishnan, Uma} } @article {894, title = {Quaternary climate change and social behavior shaped the genetic differentiation of an endangered montane primate from the southern edge of the Tibetan Plateau.}, journal = {Am J Primatol}, volume = {77}, year = {2015}, month = {2015 Mar}, pages = {271-84}, abstract = {

Multiple factors, including climate change, dispersal barriers, and social behavior influence the genetic structure of natural populations. While the effects of extrinsic factors such as historical climatic change and habitat topography have been well studied, mostly in temperate habitats, the simultaneous effects of intrinsic factors such as social behavior on genetic structure have rarely been explored. Such simultaneous effect, however, may particularly be common in social mammals such as many primates. Consequently, we studied the population structure of a rare and endangered social primate, the Arunachal macaque Macaca munzala, endemic to the northeastern Indian state of Arunachal Pradesh, located on the subtropical southern edge of the Tibetan Plateau and forming part of the Eastern Himalayan biodiversity hotspot. We studied a 534 bp-long mitochondrial DNA sequence and 22 autosomal microsatellite loci in individuals from three populations, Tawang, Upper Subansiri, and West Siang. The mtDNA data revealed three major divergence events: that between the Arunachal and bonnet macaques (ca. 1.61 mya), the founding of the West Siang population and the ancestral population of the present-day bonnet macaques (ca. 1.32 mya), and the divergence between the Tawang and Upper Subansiri populations (ca. 0.80 mya) that coincided with the major glacial events in the region. Comparing mitochondrial DNA with autosomal microsatellites, we also found evidence for female philopatry and male-driven long-distance gene flow. Arunachal macaques thus appear to be characterized by groups of philopatric females separated by geographical barriers and harsh climate but with dispersing males exerting a homogenizing effect on the nuclear gene pool. Given that severe population differentiation is of major concern in species conservation, we suggest that our study populations represent significant conservation units of this rare, endangered primate but, more importantly, emphasize the complex interplay of extrinsic and intrinsic factors in shaping the population structure of a social mammalian species.

}, keywords = {Animals, Behavior, Animal, Climate Change, DNA, Mitochondrial, Ecosystem, Evolution, Molecular, Female, Gene Flow, Genetics, Population, India, Macaca, Male, Microsatellite Repeats, Phylogeography, Population Dynamics, Sequence Analysis, DNA, Social Behavior}, issn = {1098-2345}, doi = {10.1002/ajp.22343}, author = {Chakraborty, Debapriyo and Ramakrishnan, Uma and Sinha, Anindya} }