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Diversity of Pollinator Bees in Ecological Engineering Organic Field Available online at www.ijpab.com Sree Latha et al Int. J. Pure App. Biosci. 6 (2): 868-871 (2018) ISSN: 2320 – 7051 DOI: http://dx.doi.org/10.18782/2320-7051.6311 ISSN: 2320 – 7051 Int. J. Pure App. Biosci. 6 (2): 868-871 (2018) Research Article Diversity of Pollinator Bees in Ecological Engineering Organic Field Sree Latha E.*, Jesu Rajan, S., Sathish R, Swathi Yadav K, Rama Devi A. and Vijayalakshmi K. National Institute of Plant Health Management, Rajendra Nagar, Hyderabad – 500 030 *Corresponding Author E-mail: [email protected] Received: 6.03.2018 | Revised: 11.04.2018 | Accepted: 18.04.2018 ABSTRACT Study on diversity of bee pollinators was carried at NIPHM, Hyderabad during 2016-17 on sunflower, sun hemp, maize, sweet corn, brinjal, okra, cherry, bottle gourd, ridge gourd and cucurbits. NIPHM maintains ecological engineering (EE) organic field for the purpose of research, training and popularization of the concept of EE. The crops were maintained along with flowering plants like mustard, sunflower, marigold, cosmos etc., to attract beneficial insects. In present study total fourteen bee species from nine genera were identified as pollinators, out of 14 species of bees 5 species were honey bees from family Apidae and Genus Apis and Tetragonula and remaining 9 species were solitary bees. Ecological engineering concept is beneficial to the farmers and environment in many aspects and the most important being conservation of precious bee pollinators. Key words: Ecological Engineering, Bee Pollinators, NIPHM, Organic field. INTRODUCTION 67% of species of flowering plants and a Pollinators play key role in the survival of relatively high diversity of insect taxa3. On the integrity of terrestrial ecosystem through their other hand, 35% of crop production worldwide major role in plant reproduction, thereby and 70% of major global crop species rely on providing services and goods to the society8. animal pollination4. Lautenbach et al.6, Pollination has two important consequences, it estimated values of bee pollination at €265 maintains biodiversity of flowering plants and billion in global food supply. maintains ecosystem functioning. Many Kumar and Naidu5 estimate about empirical studies have found positive 1200 species of vertebrate pollinators and correlations between pollinator diversity and 80,000 species of insect pollinators are present plant functioning7. worldwide. Amongst 80,000 species of insect Pollination by insects and other pollinators, 17,533 species are of bee animals is significant in most terrestrial pollinators worldwide, out of these 633 species habitats. Fruit, vegetable or seed production from 60 genera belongs to 6 families were from 87 of the 115 leading global food crops reported from India. depends upon animal pollination. It involves Cite this article: Sree Latha, E., Rajan, J.S., Sathish, R., Yadav, S.K. Rama Devi A. and Vijayalakshmi, K., Diversity of Pollinator Bees in Ecological Engineering Organic Field, Int. J. Pure App. Biosci. 6(2): 868- 871 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6311 Copyright © March-April, 2018; IJPAB 868 Sree Latha et al Int. J. Pure App. Biosci. 6 (2): 868-871 (2018) ISSN: 2320 – 7051 Among the insect pollinators, honey bees are period on different crops. Field was kept free the most important pollinators of angiosperms from any insecticidal spray during the entire because of their vegetarian diet, flower visiting study period. Bees collected by aerial netting habits, floral fidelity, presence of thousands of method were killed with the help of killing work force, large number of hairs on body that bottle. The dead insect was immediately readily pick up pollen grains and the fact that transformed into absolute alcohol. Time and they exclusively visit many flowers of the date of collection were documented for each same species during a single trip and also their specimen. In the lab, specimens were pinned, availability throughout the year makes honey mounted and oven–dried for 24 hours at 40 °C. bees the most efficient and reliable All specimens were kept in insect boxes pollinator10. supplied for pinning and naphthalene balls Honeybees pollinate 16% of the total were kept to enable long storage without pest of 0.25 million of flowering plant species in damage. Specimens of bees were used for the world and nearly 40000 species of identification. agricultural plants2. Worldwide, 90 per cent Identification of specimens Initial identification to the genus level was food supply is contributed by 82 commodities conducted in the laboratory of Plant health assigned to plant species and bees are management (PHM) division, NIPHM, pollinators of 63 (i.e. 70%) of these plant Hyderabad. Later the images were shared to species and are the most important known Dr. Venkata Rami Reddy P., Principal pollinators of 39 (48%) of these plant species. Scientist, Division of Entomology and One-third of human diet is derived directly or Nematology, Pollinator Ecology, Indian indirectly from bee pollination in developed Institute of Horticulture Research, Bengaluru, countries. Of the hundred or so animal- India for confirmation. pollinated crops which make up most of the world’s food supply, at least 80 % are 9 RESULTS AND DISCUSSION pollinated by honey bees and wild bees . Over In present study total fourteen bee species the past two decades many investigators from nine genera were identified as recorded the decline in population of bee pollinators, found on different crops at species and the colony numbers (colony NIPHM. Out of fourteen species of bees five collapse disorder) due to the environmental bee species were honeybees from family problems like climate change, drought, fire, Apidae and Genus Apis and Tetragonula, and deforestation, pesticides, cell phones and many remaining nine species were solitary bees. other reasons. Honey bees are so important to The most rich genus was Apis, having four both agriculture and economics so efforts are species viz., Apis florea (Fabricius, 1787), important to reduce this declination. Apis cerana indica (Fabricius, 1793), Apis mellifera (Linnaeus, 1758) and Apis dorsata MATERIAL AND METHODS (Fabricius, 1793). Genus Nomada includes Studies on diversity of bee pollinators were two species viz., Nomada luteoloides carried out at NIPHM on different crops (Robertson, 1895) and Nomia sp. Genus (sunflower, sun hemp, maize, sweet corn, Xylocopa includes two species viz., Xylocopa brinjal, okra, cucurbits, bottle gourd, ridge violacea (Linnaeus, 1758), Xylocopa gourd and cherry). Field data was collected fenestrate (Fabricius, 1798). Genus through regular frequent visits to the study Tetragonula, Pseudapis, Nomia, Halictus, sites, during January 2017 – May 2017 Megachile, Scolia and Amegilla included one between 08.00 – 10.00 am. Whenever bee species each viz.,Tetragonula iridipennis species was observed on flowers it was caught (Smith, 1854), Pseudapis oxybeloides (Smith, by sweep insect net. Insect visitors were 1875), Nomia sp., Halictus sp., Megachile sp., collected on a sunny day between 08:00 and Scolia sp., and Amegilla cingulate (Fabricius, 10:00 am throughout the entire flowering 1775). Copyright © March-April, 2018; IJPAB 869 Sree Latha et al Int. J. Pure App. Biosci. 6 (2): 868-871 (2018) ISSN: 2320 – 7051 Among all the crops observed, brinjal recorded found in cucumber is blue banded bee highest diversity with 14 species of bees (Amegilla cingulata). (Table 1). Sunflower (Helianthus annuus): Three Brinjal (Solanum melongena): The species of honey bees i.e., Indian honey bee, movement of bees was extensive in this crop European honey bee and Stingless bee (Apis throughout the flowering period when mellifera, Apis cerana indica and Tetragonula compared to the other crops. The pollinators iridipennis) along with two species of observed in the brinjal field are honey bees carpenter bees (Xylocopa violacea, Xylocopa (Apis dorsata, Apis florea, Apis cerana indica, fenestrata) were found. The present study Apis mellifera, Tetragonula iridipennis), corroborated with the findings of Amit et al. carpenter bees (Xylocopa violacea, Xylocopa (2010) who noticed more abundance of Apis fenestrata) and other solitary bee pollinators sp. in sunflower ecosystem. like Pseudapis oxybeloides, Nomia sp., Sweet corn (Zea mays): Four species of honey Nomada luteoloides, Halictus sp. (sweat bee), bees i.e., Indian honey bee, European honey Megachile spp. (leaf cutting bees), Amegilla bee, Rock bee and Stingless bee (Apis cerana cingulata (blue banded bee). Among the indica, Apis dorsata, Apis mellifera, and insects observed in the brinjal field, carpenter Tetragonula iridipennis) were seen in Sweet bees (Xylocopa) and honey bees (Apis dorsata) corn field. Apart from honey bees no other were found abundant throughout the period. pollinators were found in the field. Sun hemp Okra (Abelmoschus esculentus (L.): Single (Crotalaria juncea): Two species of carpenter bee pollinator was observed in okra i.e., sting bees i.e., (Xylocopa violacea, Xylocopa less honey bee (Tetragonula iridipennis). fenestrata) and two other pollinators Cucurbits: Two species of honey bees, Pseudapis oxybeloides and Scolia spp. European honey bee (Apis mellifera) and were observed. stingless bee (Tetragonula iridipennis) were Cherry: The abundant pollinator in cherry is found in cucumber (Cucumis sativus), ridge little bee (Apis florea) and sting less bee gourd (Luffa acutangula) and bottle gourd (Tetragonula iridipennis) were seen on Cherry (Lagenaria siceraria). Another pollinator
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