Publications by authors named "Gaurab Nandi Das"
With ongoing insect declines, species expanding in distribution and abundance deserve attention, as understanding their success may help design conservation strategies for less successful species. Common causes of these successes include warmer climates, novel resources, and exploiting land use change, including land abandonment. These factors affect the nymphalid butterfly Neptis rivularis, developing on Spiraea spp.
View Article and Find Full Text PDFThe present study enumerates 65 species of Papilionoidea from the Ladakh Himalaya with the geographical locations and adult flight data. All the species are documented by museum vouchers. Most of the species recorded, have restricted distribution or they are endemic to the Pamir-NW Himalaya region.
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- Butterflies are a key focus for studying biogeographical patterns globally and regionally, with many studies concentrated in well-researched northern regions, leaving tropical areas like India underexplored.
- The study analyzed 1,379 butterfly species across India's 36 states to understand the relationship between species richness and factors such as geography, climate, and socioeconomics, finding that topographic diversity and the precipitation/temperature ratio are crucial for predicting species richness.
- Indian butterfly diversity primarily aligns with global biodiversity hotspots, with unique faunas in the Western Himalayas and peninsular savannah states reflecting the region's geographical and climatic uniqueness.
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- The "celia clade" of the butterfly genus Pseudodebis is revised, identifying three species and introducing two new ones: P. darrenthroopi and P. tigrillo.
- This revision raises the total known species in the genus to 13, with six found in the area across the Andes.
- The study includes a discussion on specific species names, the designation of a neotype and a lectotype for two butterflies, and highlights the uncertain identity of the historical name Papilio phorcys.
The Psyra Walker, 1860, is a typical Sino-Himalayan genus of the subfamily Ennominae, currently known by 18 species/4 subspecies globally and 9 species from India. This study aims to revise the taxonomy and ecology of Indian Psyra by providing a morphology-based diagnostic key, highlighting their altitudinal, habitat and seasonal preferences, and modelling their distribution based on current and future climatic scenarios. Here, we describe a new species, P.
View Article and Find Full Text PDFA new species, Pieris tadokoroi, sp. nov. is described from Himachal Pradesh, India.
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- The paper examines Lethe (Zophoessa) jalaurida and its related species within the jalaurida-subgroup.
- A new species, L. giancbi, is identified from SE Tibet and was previously misclassified.
- Two species, L. elwesi houjiangae and L. jalaurida gelduba, are elevated to specific status, while one name is deemed unnecessary, and another is classified as a subspecies.