Gaurava Kumar

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Robert Lickliter

Florida International University

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University of Miami

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Kwantlen Polytechnic University

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Kansas State University

Mariela Aguilera

National Scientific and Technical Research Council

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Case Western Reserve University

Eros Carvalho

Universidade Federal do Rio Grande do Sul

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École Normale Supérieure de Lyon

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Fundação Oswaldo Cruz

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University of Oxford

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Papers by Gaurava Kumar

Assessing the Impact of Trap Nests on Megachile Bee Population in Mung Bean

Journal of scientific research and reports, Jul 6, 2024

The Stingless Bees

CRC Press eBooks, Dec 4, 2023

In-vitro queen rearing protocol for stingless bee, Tetragonula iridipennis Smith

Journal of apicultural research, Apr 3, 2024

Insects as Crop Pollinators

Insects as Service Providers, Dec 9, 2022

Pollinator interaction with selected ‘weeds’ flora, Asteraceae, in the context of land use

Oriental Insects

Notes on the nesting ecology of the Megachile bees from North India

Information on plants providing provisions (nectar and/or pollen) and nesting material for <i&... more Information on plants providing provisions (nectar and/or pollen) and nesting material for Megachile bees is fundamental for their conservation and habitat management to obtain optimal pollination services. Considering insufficient work reporting on these aspects in north India, studies were carried out to investigate the interactions between the plant species and the Megachile bees, through observing the adults foraging on the flowers and leaf-cutting activity on the leaves of plant species during regular visits. Observations on the leafcutter bees, viz. Megachile (Amegachile) bicolor Fabricius, Megachile (Eutricharaea) chlorigaster Cameron, Megachile (Aethomegachile) conjuncta Smith, Megachile (Callomegachile) relata Smith and Megachile (Eutricharaea) studiosa Bingham and five resin/mason bees - Megachile (Callomegachile) cephalotes</i&gt...

First record on quantification of nectar and pollen content in the larval provision of stingless bee, Tetragonula iridipennis, Smith

Journal of entomology and zoology studies, 2021

Tetragonula iridipennis Smith, also known as dammer bee is happens to be the only species of stin... more Tetragonula iridipennis Smith, also known as dammer bee is happens to be the only species of stingless bees found in most of the North Indian states. In the present study, a quantitative assessment of the larval provision was done for realizing the total pollen and nectar content consumed by a T. iridipennis worker bee, during its development. The eggs were removed by decapping the T. iridipennis brood cells to suck the total larval provision from 60 brood cells. After collecting the larval provision in 6 Eppendorf tubes, each containing larval provision from 10 brood cells, the total dry pollen content was weighed after the complete dehydration. The average dry pollen content present in all the 60 brood cells was calculated to be 7 mg as compared to the 70 mg of total moisture content. Further, the estimation of total moisture content present in recently collected pollen by these bees, gave the fraction of pollen (10.51%) and nectar (89.48%) present inside a single brood cell of T....

Effect of anthropogenic factors on the species distribution of nymphalid and pierid butterflies in five different locations of Garhwal and Kumaun region of Uttarakhand, India

Taking the increasing anthropogenic pressure and its drastic outcomes on the distribution of vege... more Taking the increasing anthropogenic pressure and its drastic outcomes on the distribution of vegetation and fearful environmental changes into the consideration following study was done to observe the difference in butterfly biodiversity of two families, Nymphalidae and Pieridae in five different places of Uttarakhand and to observe their relationship with local environmental conditions. A total number of 2887 individuals comprising 39 species of butterflies belonging to 2 families, Pieridae and Nymphalidae were recorded during the surveys carried out in 5 different sites situated at different elevation gradients i.e. Chamoli, Kedarnath, Bageshwar and Almora and Dehradun. Butterfly population was found to be correlated with the human population as well as, with the distribution of vegetation. Maximum numbers of butterflies were recorded from Chamoli followed by Almora and Dehradun. The least number of butterflies were recorded from Kedarnath, due to the comparatively higher elevatio...

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Bioefficacy of some insecticides against tobacco caterpillar, Spodoptera litura (Fabricius) under lab conditions

The bioefficacy of five insecticides viz. Fipronil, Indoxacarb, Flubendiamide, Spinosad and Lambd... more The bioefficacy of five insecticides viz. Fipronil, Indoxacarb, Flubendiamide, Spinosad and Lambda cyhalothrin were conducted under lab condition by leaf dip method to determine their stomach toxicity against Spodoptera litura and the results revealed that at 24 HAE (hours after exposure) Indoxacarb (LC50 = 0.22 ppm) was the most toxic whereas Lambda cyhalothrin (LC50 = 350 ppm) was the least toxic and the order of toxicity was: Indoxacarb > Fipronil > Spinosad > Lambda cyhalothrin. Similar trends were observed at 48 HAE where the order of toxicity was Indoxacarb > Flubendiamide > Fipronil > Spinosad > Lambda cyhalothrin. The LC values indicated that Indoxacarb was most toxic (LC30 = 0.052 ppm; LC50 = 0.096 ppm; LC90 = 0.43 ppm) closely followed by Flubendiamide (LC30 = 0.3 ppm; LC50 = 0.8 ppm; LC90 = 7.2 ppm) whereas the least toxic insecticide was Lambda cyhalothrin (LC50 = 225 ppm). A comparative dose mortality response indicated in terms of relative toxicity...

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Notes on the nesting ecology of the Megachile bees from North India

Journal of Apicultural Research

Contact Toxicity of some newer insecticides against mango mealy bug, Drosicha mangiferae (Green)

Journal of Entomological Research

Detailed Review on Pesticidal Toxicity to Honey Bees and Its Management

Modern Beekeeping [Working Title]

This chapter deals with the effects of different pesticides used in agro-ecosystem on honey bees ... more This chapter deals with the effects of different pesticides used in agro-ecosystem on honey bees and other pollinators and probable measures to manage this escalating problem of global decline of managed as well as the wild insect pollinators. This chapter describes different routes from which pollinators, especially honey bees get exposed to the different toxicants, followed by poisoning symptoms in honey bees. Further, this chapter focuses on the classification of different toxicants in different classes as per their nature. Finally, the management of these different toxicants and their toxicity to avoid bee poisoning has been considered in the later portion of the chapter.

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Assessing the Impact of Trap Nests on Megachile Bee Population in Mung Bean

Journal of scientific research and reports, Jul 6, 2024

The Stingless Bees

CRC Press eBooks, Dec 4, 2023

In-vitro queen rearing protocol for stingless bee, Tetragonula iridipennis Smith

Journal of apicultural research, Apr 3, 2024

Insects as Crop Pollinators

Insects as Service Providers, Dec 9, 2022

Pollinator interaction with selected ‘weeds’ flora, Asteraceae, in the context of land use

Oriental Insects

Notes on the nesting ecology of the Megachile bees from North India