The East Himalaya is one of the world’s most biodiverse ecosystems. However, very little is known about the abundance and distribution of many plant and animal taxa in this region. Bumble bees are a group of cold-adapted and high elevation insects that fulfil an important ecological and economical function as pollinators of wild and agricultural flowering plants and crops. The Himalayan mountain range provides ample suitable habitats for bumble bees. Systematic study of Himalayan bumble bees began a few decades ago and the main focus has centred on the western region, while the eastern part of the mountain range has received little attention and only a few species have been verified. During a three-year survey, more than 700 bumble bee specimens of 21 species were collected in Arunachal Pradesh, the largest of the north-eastern states of India. The material included a range of species that were previously known from a limited number of collected specimens, which highlights the unique character of the East Himalayan ecosystem. Our results are an important first step towards a future assessment of species distribution, threat, and conservation. Clear elevation patterns of species diversity were observed, which raise important questions about the functional adaptations that allow bumble bees to thrive in this particularly moist region in the East Himalaya.
Insect eating has been reported for a long time, and they are consumed in raw and processed forms by several cultures around the world, especially in developing countries, where they are typically regarded as a delicacy in addition to providing nutrients, farming, processing, and consumption of edible insects have recently sparked a lot of research interest, mostly in an effort to mitigate food insecurity and improve nutrition in many developing nations. Edible insects have been demonstrated to improve the nutritional content of foods by providing micro- and macronutrient levels that are comparable to, if not higher than, those found in animal-derived foods. Even with all of these advantages, promoting edible insect cultivation and consumption in developed and developing countries faces a number of hurdles. In many Western countries, however, consumer acceptance of insects as a food source remains a major challenge. The problem of food safety is at the top of the list of these challenges, with many western consumers concerned about the microbiological and chemical health risks that edible insects or edible insect-derived foods may provide. According to the available research, there is a clear need to strike a balance between the nutritional benefits of edible insects and its food safety concerns.
20The East Himalaya is one of the world's most biodiverse ecosystems. Yet, very little is known 21 about the abundance and distribution of many plant and animal taxa in this region. Bumble 22 bees are a group of cold-adapted and high altitude insects that fulfill an important ecological 23 and economical function as pollinators of wild and agricultural flowering plants and crops. 24The Himalayan mountain range provides ample suitable habitats for bumble bees. Himalayan 25 bumble bees have been studied systematically for a few decades now, with the main focus on 26 the western region, while the eastern part of the mountain range received little attention and 27 only a few species are genuinely reported. During a three-year survey, we collected more than 28 700 bumble bee specimens of 21 species in Arunachal Pradesh, the largest of the north-29 eastern states of India. We collected a range of species that were previously known from a 30 very limited number of collected specimens, which highlights the unique character of the East 31 Himalayan ecosystem. Our results are an important first step towards a future assessment of 32 species distribution, threat and conservation. We observed clear altitudinal patterns of species 33 diversity, which open important questions about the functional adaptations that allow bumble 34 bees to thrive in this particularly moist region in the East Himalaya.35 36 Keywords 37 Conservation, Apidae, pollination, alpine habitats, global change, insect collection 39 40 Bumble bees (Hymenoptera: Apidae: Bombus LATREILLE) are a group of conspicuous, large 41 and colorful bees that mainly inhabit cold and temperate habitats at high latitudes and 42 altitudes. Their conspicuous appearance and abundance made them a prime study object of 43 many early naturalists and insect collectors. After extensive revision in the past decades, 44 around 260 species are currently recognized (Williams 1998; updated online at 45 http://www.nhm.ac.uk/research-curation/research/projects/bombus/index.html). 46 47 Current global sampling efforts focus on revising the bumble bee taxonomy at the subgenus 48 level and filling white spots in global distribution data for a worldwide IUCN red list 49 assessment of all species (iucn.org/bumblebees). The latter is urgently needed, since a number 50 of bumble bee species showed dramatic declines in their abundance and range in the recent 51 past (Cameron et al. 2011). The reasons are only partially understood and most likely involve 52 pathogen spillover from commercial breeding, and changes in agricultural practices and land 53
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