2024, Vol. 5, Issue 2, Part C
Floral source and pollen calendar of pollinating insects amidst agro-ecosystems of Kodagu district, Karnataka, India
Author(s): Ballachanda Monnappa Nalini and S Basavarajappa
Abstract: Plants which bear flowers provide pollen and nectar to nourish varieties of insect species and in turn get reward in the form of pollination. The floral source, blooming period of flowering plants, pollen calendar, insect species benefiting from the flora during different seasons are ongoing mysterious events elucidates the true biological activity existing between plants and animals amidst every agro-ecosystems in the nature. To record such an amazing event amidst the Kodagu district (12.151-12.451N latitude, 75.251-76.141E longitude and altitude 390 to 5,627 ft) during 2021 to 2023 present investigation was conducted by following standard methods at randomly chosen 12 different agro-ecosystems. Results revealed that 120 plants which belong to 24 orders of 54 plant families provided floral source to various insect pollinators. Asteraceae family members were more predominant and it was followed by plant species belong to the family Fabaceae, Rubiaceae, Lamiaceae, Euphorbiaceae, Myrtaceae and Poaceae which were common in their occurrence with varied relative abundance. However, Alternathera sessilis, Oryza sativa, Duranta rapens, Chrysanthnemum sp., Sphagneticola trilobata, Coffea cnephora, Cosmos sulphureus, Emilia sonchifolia relative abundance was high (3.43 to 11.2). Aster tataricus and Carica papaya have provided floral source to insect pollinators throughout the year and remaining 118 flowering plant species which belong to different families have extended the floral source to the insect pollinators during different months in a year. The foraging value such as nectar (N) and pollen (P) source was more, moderate and less and accordingly designated them as N1, N2, N3 and P1, P2 and P3 plants, which provided considerable amount of floral source constantly and consistently to various insect pollinators at different agro-ecosystems. This kind of investigations help assess the insect pollinator’s diversity and distribution amidst different agro-ecosystems based on the available floral source during different seasons. Such type of observations are beyond the limit of present study, however, attempts will be made to publish on insect pollinators elsewhere. Hence, present investigation provided an insight on the status of floral source and pollen calendar of pollinating insects of different agro-ecosystems of Kodagu district of Karnataka state.
DOI: 10.33545/27080013.2024.v5.i2c.172
Pages: 202-212 | Views: 31 | Downloads:
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How to cite this article:
Ballachanda Monnappa Nalini, S Basavarajappa. Floral source and pollen calendar of pollinating insects amidst agro-ecosystems of Kodagu district, Karnataka, India. Acta Entomol Zool 2024;5(2):202-212. DOI: 10.33545/27080013.2024.v5.i2c.172
