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Insects: biodiversity, threat status and conservation approaches


Affiliations
1 ICAR-National Research Centre for Integrated Pest Management, New Delhi - 110 012, India
2 ICAR-Indian Institute of Oilseeds Research, Hyderabad - 500 030, India
3 ICAR-National Bureau of Plant Genetics Resources, New Delhi - 110 012, India
4 ICAR-Indian Grassland and Fodder Research Institute, Jhansi - 284 001, India
5 ICAR-Indian Agricultural Research Institute, New Delhi - 110 012, India
6 ICAR-Directorate of Medicinal and Aromatic Plants Research, Anand 387 310, India
7 ICAR-Central Potato Research Institute, Regional Station, Modipuram - 250 110, India
8 ICAR-National Research Centre for Integrated Pest Management, New Delhi 110 012, India
 

Insects are an important component of the ecosystem and fast dwindling of its diversity is reported globally. The International Union for Conservation of Nature has assessed a total of 77,435 species of insects between 1996 and 2020, of which 18,180 (23.47%) species are reported to be threatened and the majority of threate­ned species was reported in Odonata followed by Ortho­ptera, Coleoptera, Lepidoptera and Hymenoptera. Out of 1843 species listed as critically endangered, endangered, extinct, extinct in wild and vulnerable, from the literature it was found that 596 are predators, 40 are pollinators, 164 are saprophagous, 620 are herbivores, 272 are omnivores, 137 are parasites and 14 are unknown. This study provides concise information on insect diversity, global threat status and major driving factors for population decline, which will be helpful in determining the priority insect groups that require conservation.

Keywords

Conservation Approaches, Ecological Indicators, Insect Biodiversity, Population Decline, Threatened Species
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  • Insects: biodiversity, threat status and conservation approaches

Abstract Views: 155  |  PDF Views: 76

Authors

Kerur Vishwanath Raghavendra
ICAR-National Research Centre for Integrated Pest Management, New Delhi - 110 012, India
Thangavel Bhoopathi
ICAR-Indian Institute of Oilseeds Research, Hyderabad - 500 030, India
Ravi Gowthami
ICAR-National Bureau of Plant Genetics Resources, New Delhi - 110 012, India
Manikyanahalli Chandrashekara Keerthi
ICAR-Indian Grassland and Fodder Research Institute, Jhansi - 284 001, India
Sachin Suresh Suroshe
ICAR-Indian Agricultural Research Institute, New Delhi - 110 012, India
K. B. Ramesh
ICAR-Indian Agricultural Research Institute, New Delhi - 110 012, India
Shivakumara Kadanakuppe Thammayya
ICAR-Directorate of Medicinal and Aromatic Plants Research, Anand 387 310, India
Subhash Shivaramu
ICAR-Central Potato Research Institute, Regional Station, Modipuram - 250 110, India
Subhash Chander
ICAR-National Research Centre for Integrated Pest Management, New Delhi 110 012, India

Abstract


Insects are an important component of the ecosystem and fast dwindling of its diversity is reported globally. The International Union for Conservation of Nature has assessed a total of 77,435 species of insects between 1996 and 2020, of which 18,180 (23.47%) species are reported to be threatened and the majority of threate­ned species was reported in Odonata followed by Ortho­ptera, Coleoptera, Lepidoptera and Hymenoptera. Out of 1843 species listed as critically endangered, endangered, extinct, extinct in wild and vulnerable, from the literature it was found that 596 are predators, 40 are pollinators, 164 are saprophagous, 620 are herbivores, 272 are omnivores, 137 are parasites and 14 are unknown. This study provides concise information on insect diversity, global threat status and major driving factors for population decline, which will be helpful in determining the priority insect groups that require conservation.

Keywords


Conservation Approaches, Ecological Indicators, Insect Biodiversity, Population Decline, Threatened Species

References





DOI: https://doi.org/10.18520/cs%2Fv122%2Fi12%2F1374-1384