Floral development and potential pollinators of Syzygium myhendrae (Bedd. ex Brandis) Gamble, a wild endemic tree of the Southern Western Ghats, India
DOI:
https://doi.org/10.14719/pst.2397Keywords:
Anthesis, Endangered, Floral visitor, Honey bees, Visitor activity indexAbstract
Syzygium myhendrae, is a semi-evergreen, endemic and endangered tree species of the Southern Western Ghats, India which exhibits bi-annual mode of flowering and fruiting behaviour. This research is specifically aimed to observe the sequence of morphological processes occurring during floral development and to identify the potential pollinators from the different floral visitors. These aims are achieved by examining the individual trees of candidate species during their flowering season. Sticky traps, bee bowls, sweep nets and pan traps were used to capture floral visitors at the anthesis stage. Visitation frequency and visitor activity index were calculated to distinguish effective pollinators from visitor insects. The results showed nine stages in flower development starting from flower bud emergence to fruit ripening, which took 6-9 weeks. Nine species of insects were recorded as visitors. Honey bees (Apis cerana, ApisMdorsata and Tetragonula iridipennis), butterflies (Hypolimnas misippus,pachilopta pandiana), wasp species, beetle species, fly species were exclusively visiting the flowers of the candidate species. Among the honey bees, Apis dorsata showed high visitation frequency (0.40±0.01) followed by Apis cerana (0.31±0.02) and Tetragonula iridipennis (052±0.02). As per the visitation frequency, it can be concluded that Apis dorsata was the most frequent and effective pollinator.
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Shareef MS, Rasiya BA. Lectotypification and status of "Syzygium myhendrae" (Bedd. ex Brandis) Gamble (Myrtaceae)-An endemic Myrtle of Southern Western Ghats, India. Taiwania. 2015 Mar 1;60(1):59-62. https://azkurs.org/pars_docs/refs/28/27490/27490.pdf
Badou RB, Yedomonhan H, Ewedje EE, Dassou GH, Adomou A, Tossou M, Akoegninou A. Floral morphology and pollination system of Syzygium guineense (Willd.) DC. subsp. macrocarpum (Engl.) F. White (Myrtaceae), a subspecies with high nectar production. South African Journal of Botany. 2020 Jul 1;131:462-67. https://doi.org/10.1016/j.sajb.2020.04.013
Mudiana D, Ariyanti EE. Syzygium myrtifolium Walp. flowering stages and its visitor insects. Biodiversitas Journal of Biological Diversity. 2021 Jul 31;22(8). https://smujo.id/biodiv/article/view/8923 https://doi.org/10.13057/biodiv/d220848
Boulter SL, Kitching RL, Zalucki JM, Goodall KL. Reproductive biology and pollination in rainforest trees: techniques for a community-level approach. Cooperative Research Centre for Tropical Rainforest Ecology and Management. Rainforest CRC, Cairns, Australia. 2006.
Ratnaningrum Y. Flowering. Summary of e-Learning lectures: Techniques of forest plants’ seedling. http://elisa.ugm.ac.id/files/yeni_wn_ratna/kRYOOS-m3/II-kualitas%20dan%20prod-bunga3.doc[Indonesia]. 2004.
Ashari S. The introduction of reproduction biology of plants. PT Rineka Cipta, Jakarta [Indonesia]. 2002.
Ramírez N. Ecology of pollination in a tropical Venezuelan savanna. Plant Ecology. 2004 Aug;173(2):171-89. https://doi.org/10.1023/B:VEGE.0000029320.34895.7d
Erwin J. Factors affecting flowering in ornamental plants. InFlower seeds: biology and technology. Wallingford UK: CABI Publishing. 2005;pp. 87-115. https://doi.org/10.1079/9780851999067.0087
Ramasubbu R, Anjana S, Divya C, Nambi SK, Manikandan G. A new species of Syzygium (Myrtaceae) from the South Western Ghats of Tamil Nadu, India. Phytotaxa. 2018;374(3):263-67. https://doi.org/10.11646/phytotaxa.374.3.8
Shivanna KR, Tandon R. Reproductive ecology of flowering plants: a manual. New Delhi: Springer India. 2014 Sep 1; https://doi.org/10.1007/978-81-322-2003-9_1
Astuti IP, Kusuma YW, Yuswandi AY, Sunarti S. Fenologi perbungaan dan pembuahan serta perkecambahan biji Syzygium hirtum (Korth.) Merr. and lm perry di kebun raya bogor. Buletin Kebun Raya. 2021 Apr 30;24(1):20-27. https://doi.org/10.14203/bkr.v24i1.717
Geethika K, Sabu M. Pollination biology of Syzygium caryophyllatum (L.) Alston (Myrtaceae). The International Journal of Plant Reproductive Biology. 2017;9(1):69-72. http://ijprb.com/vol%2009%20(1)/14%20.
Cho LH, Yoon J, An G. The control of flowering time by environmental factors. The Plant Journal. 2017 May;90(4):708-19. https://doi.org/10.1111/tpj.13461
Nadarajan S, Pujari SS. Phenological patterns of an endangered tree species Syzygium caryophyllatum in Western Ghats, India: Implication for conservation. Proceedings of the National Academy of Sciences, India Section B: Biological Sciences. 2019 Dec;89:1275-81. https://doi.org/10.1007/s40011-018-1044-3
Varghese A, Sreekala AK. Floral biology of Syzygium occidentale (Bourd.) Ghandhi (Myrtaceae); a Western Ghats endemic tree species. Journal of Playnology. 2017;53:1-1.
Raju AJ, Krishna JR, Chandra PH. Reproductive ecology of Syzygium alternifolium (Myrtaceae), an endemic and endangered tropical tree species in the Southern Eastern Ghats of India. Journal of Threatened Taxa. 2014 Aug 26;6(9):6153-71.
Kuriakose G, Sinu PA, Shivanna KR. Ant pollination of Syzygium occidentale, an endemic tree species of tropical rain forests of the Western Ghats, India. Arthropod-Plant Interactions. 2018 Oct;12(5):647-55. https://link.springer.com/article/10.1007/s11829-018-9613-1. https://doi.org/10.1007/s11829-018-9613-1
Hopper SD. Pollination of the rain-forest tree Syzygium tierneyanum (Myrtaceae) at Kuranda, Northern Queensland. Australian Journal of Botany. 1980;28(2):223-37. https://doi.org/10.1071/BT9800223
Reghunath A, Surendran A, Ramasubbu R. Pollination system and reproductive failure in an endangered semi-evergreen tree, Syzygium myhendrae (Bedd. ex Brandis) Gamble. South African Journal of Botany. 2022 Nov 1;150:583-95. https://doi.org/10.1016/j.sajb.2022.07.047
Komamura R, Koyama K, Yamauchi T, Konno Y, Gu L. Pollination contribution differs among insects visiting Cardiocrinum cordatum flowers. Forests. 2021 Apr 9;12(4):452. https://doi.org/10.3390/f12040452
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