Biodiversity and predatory potential of coccinellids of rice ecosystems

Chitra, S.; Sampathkumar, M.; Sunil, V.; Amudhan, S.; Sravanthi, G.; Jhansirani, B.; Poorani, J.; Katti, Gururaj

doi:10.18311/jbc/2018/17912

Cited by 2 publications

(2 citation statements)

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“…Margalef index measuring the species richness from different zoogeographical habitats of Uttarakhand was 2.1889, 2.7435, 3.3740, 4.5426, and 5.0634 for USN, Nainital, Almora, Uttarkashi, and Chamoli, respectively. Total Margalef's index for Uttarakhand, North India was 5.1911. Shanker et al (2018 evaluate this index to be 10.14 from the rice fields of Almora, which is three times more than our data.…”

Section: Resultscontrasting

confidence: 69%

“…Recently, Rasheed & Buhroo (2018) evaluated biodiversity indices of three districts of Kashmir and found that thirteen ladybird species are evenly distributed in these regions. Similarly, surveys of coccinellid diversity in the rice fields from different states of India revealed high diversity indices from Almora, Uttarakhand (Shanker et al, 2018). This indicates that the coccinellid study of the area has been less studied in the past and there is a need to explore it for future reference.…”

Section: Introductionmentioning

confidence: 99%

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Distribution and Biodiversity Indices of predaceous Coccinellidae (Coleoptera) of Uttarakhand, North India

Pervez¹,

Khan²

2019

Biodiversity Journal

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An extensive survey was conducted to explore the biodiversity of predaceous ladybirds (Coleoptera Coccinellidae) and to evaluate their biodiversity indices from five zoogeographical habitats in Uttarakhand, North India. A total of 1883 ladybird specimens with 18 species were recorded belonging to three sub-families (Chilocorinae Scymninae Coccinellinae), three tribes (Platynaspidini Scymnini Coccinellinae) and thirteen genera. Seven-spotted ladybird, Coccinella septempunctata (Linnaeus, 1758) was highly abundant (32.13% of total frequency), followed by Menochilus sexmaculatus (Fabricius, 1781) (23.69%). Platynaspis saundersi (Crotch, 1874) was the least abundant ladybird species. Shannon Wiener's index was the highest (2.1012) for Chamoli region exhibiting it as most species diverse habitat, which is the reason for the high pooled SW index of 2.0349 from Uttarakhand. Low Simpson's diversity index (D) was evaluated from Uttarkashi (0.1720) and Chamoli (0.1758) revealing a relative increase in coccinellid diversity from other habitats. Margalef index measuring the species richness was the highest in Chamoli (5.0634). High Pielou's evenness Index was evaluated from Uttarkashi and Chamoli suggesting that species are the most evenly distributed in these habitats. Sorenson's Index was highest (0.7368) between Nainital and Almora, which reveals maximum similarity in the species belonging to these two habitats. Similar habitats in altitude and climate have high similarity index, which suggests aggregation of ladybird species is highly dependent on climatic conditions and altitude.

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Section: Resultscontrasting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Distribution and Biodiversity Indices of predaceous Coccinellidae (Coleoptera) of Uttarakhand, North India

Pervez¹,

Khan²

2019

Biodiversity Journal

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Identity of the ‘true’ Micraspis discolor (Fabricius) (Coleoptera, Coccinellidae) with illustrated diagnostic notes on other Micraspis spp. in Indian paddy fields

Poorani

Booth

Anuradha

et al. 2023

Zootaxa

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Micraspis discolor (Fabricius, 1798) (Coleoptera: Coccinellidae), a widely studied complex of externally similar species, is known to be distributed in all the major rice growing countries of the Oriental region. It consists of disjunct populations that have been treated as a single taxonomic entity, but these are not conspecific and show disparities in their morphology. In this paper, we establish the identity of the true M. discolor based on Fabricius’s type material from Tamil Nadu, Southern India, and redescribe it with illustrations of the diagnostic characters and the life stages. A lectotype is designated for M. discolor from Fabricius’s type material (lectotype designation). Coccinella tenuilinea Walker, 1859, a sympatric species closely related to M. discolor and omitted from Korschefsky’s World Catalogue of Coccinellidae, is transferred to Micraspis (new combination) and a lectotype is designated for it. It is found to be the most predominant species in South India and redescribed with illustrations of the genitalia and the life stages. COI sequences of M. discolor, M. tenuilinea and M. yasumatsui Sasaji based on the material collected in India are given. Phylogenetic analysis of the COI sequences of Indian M. discolor and other Asian ‘M. discolor’ sequences confirm that the Indian M. discolor is a distinct species and all Micraspis spp. from South and southeast Asian countries not matching the true M. discolor described here need to be re-examined and renamed if necessary. Brief illustrated accounts of other Micraspis spp. known from the paddy ecosystems of India are also given. Alesia guerini Mulsant, 1850, currently placed in Micraspis, is transferred to Oenopia Mulsant (new combination) and Coelophora walteri Sicard, 1913 is a new junior synonym of O. guerini (new synonym).

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Biodiversity and predatory potential of coccinellids of rice ecosystems

Cited by 2 publications

References 9 publications

Distribution and Biodiversity Indices of predaceous Coccinellidae (Coleoptera) of Uttarakhand, North India

Distribution and Biodiversity Indices of predaceous Coccinellidae (Coleoptera) of Uttarakhand, North India

Identity of the ‘true’ Micraspis discolor (Fabricius) (Coleoptera, Coccinellidae) with illustrated diagnostic notes on other Micraspis spp. in Indian paddy fields

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