Seasonal Dynamics Of Ant Communities In Forest Ecosystems: Statistical Analysis And Ecological Insights

David Debjit Ambett, Majesh Tomson
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Abstract

A seasonal diversity was conducted in the forest of Bagepalli range of Chikkaballapur forest of Karnataka, India from August 2022 to August 2023. 21 species of ants were observed in this range belonging to 15 genera by following three methods such as pitfall traps, handpicking and bush beating. The abundant subfamily was Formicinae with 5 genera and under Myrmicinae, two genera were observed under the subfamily Ponerinae and one genus each from Subfamilies Pseudomyrmicinae and Dolichoderinae. The most abundant species were found to be Camponotus compressus followed by Oecophylla smaragdina. From the collection of ants few invasive species were also observed such as Anoplolepis gracilipes and Plagiolepis sp.. Two mathematical indices were followed and those were Shannon-Weaver Index and Simpson Index to study the diversity and compare the species richness from the three seasons – summer, monsoon and winter, and a statistical data was formed, the abundance in species were also observed to study which species were dominant and during which season. The maximum diversity was observed during the monsoon season followed by the summer and the least diversity was during the winter. The ants usually prefer a moist environment. The study assumes that the ant diversity can predict the environment.
森林生态系统中蚂蚁群落的季节动态:统计分析与生态启示
2022 年 8 月至 2023 年 8 月,在印度卡纳塔克邦 Chikkaballapur 森林的 Bagepalli 范围内进行了季节性多样性研究。通过采用坑式诱捕、人工采摘和灌木丛捕捉等三种方法,在该范围内观察到蚂蚁 21 种,隶属 15 个属。数量最多的亚科是甲蚁亚科(Formicinae),有 5 个属,在蚁亚科(Ponerinae)下观察到 2 个属,在伪甲蚁亚科(Pseudomyrmicinae)和蚁亚科(Dolichoderinae)下各观察到 1 个属。发现最多的物种是 Camponotus compressus,其次是 Oecophylla smaragdina。从采集的蚂蚁中还观察到一些入侵物种,如 Anoplolepis gracilipes 和 Plagiolepis sp.。研究人员采用香农-韦弗指数(Shannon-Weaver Index)和辛普森指数(Simpson Index)这两种数学指数来研究多样性,并比较夏季、季风季节和冬季这三个季节的物种丰富度,形成统计数据,还观察了物种的丰富度,以研究哪个物种在哪个季节占优势。季风季节的物种多样性最高,其次是夏季,冬季的物种多样性最低。蚂蚁通常喜欢潮湿的环境。这项研究认为,蚂蚁的多样性可以预测环境。
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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