Butterfly diversity in the three selected areas in Dhaka city, Bangladesh

Bangladesh Journal of Zoology Pub Date : 2021-04-11 DOI:10.3329/BJZ.V48I2.52380

A. Islam, A. Kashem, A. Alim, F. Zohora

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Abstract

The diversity of butterfly species was studied from January to June 2015 in the three selected areas, viz. Ramna Park, Jagannath University Campus, and Baldha Garden in Dhaka city, Bangladesh. A total 75 species of butterfly belonging to 42 genera under 8 families were recorded from the study areas during the study period. Of them, 52 species (6253 individuals) of 8 families were found in the Ramna Park, 37 species (1430 individuals) of 7 families in the Jagannath University Campus and 20 species (320 individuals) of 6 families in the Boldha Garden. In these three study areas, 17 species, 14 genera and 6 families were in common. At the Ramna Park, the highest species richness included the family Lycaenidae (21.15%, 11 spp.) followed by Papilionidae (17.31%, 9 spp.), Pieridae (17.31%, 9 spp.), Nymphalidae (17.31%, 9 spp.), Hesperiidae (13.46%, 7 spp.), Danaidae (7.69%, 4 spp.), Satyridae (3.85%, 2 spp.), and the lowest was in the family Acriidae (1.92%, 1 spp.). At the Jagannath University Campus the highest number of species were recorded in the family Lycaenidae (21.62%, 8 spp.) and Hesperiidae (21.62%, 8 spp.) followed by Pieridae (18.92%, 7 spp.), Papilionidae (13.51%, 5 spp.), Nymphalidae (10.81%, 4 spp.), Danaidae (10.81%, 4 spp.), and the lowest was in Satyridae (2.70%, 1 spp.). The topmost butterfly species were recorded in the family Pieridae (25%, 5 spp.) followed by Lycaenidae (20%, 4 spp.), Nymphalidae (20%, 4 spp.), Papilionidae (15%, 3 spp.), and the lowest from the family Hesperiidae (10%, 2 spp.) and Danaidae (10%, 2 spp.) at the Baldha Garden. The maximum butterfly species were found in February to June (51 spp.), February (34 spp.), and April (16 spp.), and the lowest were in January (46 spp.), June (21 spp.) and January (8 spp.), respectively for the Ramna Park, Jagannath University Campus and the Baldha Garden. The peak of the population observed in May (n =1285), March (n = 325), and May (n = 71), and the lowest was in January (n = 662), June (n = 145) and January (n = 21), respectively for the Ramna Park, Jagannath University Campus, and Baldha Garden. The Shanon’s Diversity Index (H) and Simpson’s Index (λ) indicated high butterfly diversity at the Ramna Park (H = 3.68, λ = 0.03), Jagannath University Campus (H = 3.20, λ = 0.06) and Baldha Garden (H = 2.50, λ = 0.13), respectively. The high Species Evenness in the Ramna Park (E = 0.93), Jaganath University Campus (E = 0.89) and the Baldha Garden (E = 0.84) indicated that the species were evenly distributed. The calculated Sorenson’s Coefficient (CC) was 0.47, which indicates that these three communities have quite a bit of overlap or similarity.

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孟加拉国达卡市三个选定地区的蝴蝶多样性

2015年1 - 6月在孟加拉国达喀市Ramna公园、Jagannath大学校园和Baldha花园3个区域对蝴蝶物种多样性进行了研究。研究期间共录得蝴蝶75种，隶属8科42属。其中Ramna公园共发现8科52种(6253只)，Jagannath大学校园共发现7科37种(1430只)，Boldha花园共发现6科20种(320只)。3个研究区共有6科14属17种。Ramna公园物种丰富度最高的是Lycaenidae科(21.15%，11种)，其次是Papilionidae科(17.31%，9种)、Pieridae科(17.31%，9种)、蛱蝶科(17.31%，9种)、Hesperiidae科(13.46%，7种)、Danaidae(7.69%， 4种)、Satyridae(3.85%， 2种)，最低的是Acriidae科(1.92%，1种)。在贾甘纳特大学校园内记录到的种类最多的是Lycaenidae科(21.62%，8种)和Hesperiidae科(21.62%，8种)，其次是Pieridae科(18.92%，7种)、papilionae科(13.51%，5种)、nyphalidae科(10.81%，4种)、Danaidae科(10.81%，4种)，最低的是Satyridae科(2.70%，1种)。蝴蝶种类最多的是蝶科(25%，5种)，其次是Lycaenidae(20%， 4种)，蛱蝶科(20%，4种)，凤蝶科(15%，3种)，最低的是蝶科(10%，2种)和蝶科(10%，2种)。2 ~ 6月、2月(34种)和4月(16种)蝴蝶种类最多，1月(46种)、6月(21种)和1月(8种)蝴蝶种类最少。在Ramna公园、Jagannath大学校园和Baldha花园，5月(n = 662)、6月(n = 145)和1月(n = 21)分别出现高峰(n =1285)、3月(n = 325)和5月(n = 71)，最低。shannon多样性指数(H)和Simpson多样性指数(λ)分别表明Ramna公园(H = 3.68， λ = 0.03)、Jagannath大学校园(H = 3.20， λ = 0.06)和Baldha花园(H = 2.50， λ = 0.13)的蝴蝶多样性较高。Ramna公园(E = 0.93)、Jaganath大学校园(E = 0.89)和Baldha花园(E = 0.84)的物种均匀度较高，表明物种分布均匀。计算的Sorenson系数(CC)为0.47，表明这三个群落有相当多的重叠或相似。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Bangladesh Journal of Zoology

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