Abstract
The present research was organized with the objective to explore the diversity and distribution of dragonfly (Odonata; Insecta) in district Sialkot, Punjab, Pakistan. The capturing was done during 2019 from 16 chosen localities of all four tehsils including Sialkot, Sambrial, Daska and Pasroor. Total of 185 specimens of dragonfly was captured with the help of sweep nets and handpicking. Identified specimens up to species level and then preserved. There are 10 species of dragonfly belonging to 7 genera and 2 families pinpointed from collected data. Pantala flavescens, Crocothemis erythraea, Crocothemis survilia, Neurothemis fluctuans, Acisoma panorpoids, Acisoma variegatum, Orthetrum pruinosum, Orthetrum sabina which comes under Pantala, Crocothemis, Ascisoma, Neurorothemis and Orthetrum genera of family Libellulidae. The prevailing 2 species, Anax indicus and Hemianax ephippiger come under Anax and Hemianax genera of family Aeshnidae. Family Libellulidae exceptionally commanding over family Aeshnidae. Head Marala is the most plentiful point because 12.3% of specimens were assembled and Qila Tek Singh is least plentiful point with 4.1% of total specimen assemblage. Pantala flavescens is the most bountiful species with 22.2% found nearly in all the localities and Orthetrum sabina is least bountiful species with just 3.8%. The Simpson species index is 0.8707 which far from 0 and nearer to 1 and Shannon-Weinberg diversity index is 2.1353 representing great diversity. The species richness 0.9274. Dragonfly is an agile flier, playing some indispensable role as a biological control agent and are good bio-indicators. After this research, it is concluded that Sialkot is rich with dragonfly diversity. Keywords: Aeshnidae; Bioindicators; Dragonfly; Libellulidae; Sambrial; Head Marala; Pantala flavescens http://dx.doi.org/10.19045/bspab.2021.100103
Highlights
The prevailing 2 species, Anax indicus and Hemianax ephippiger come under Anax and Hemianax genera of family Aeshnidae
Libellulidae exceptionally commanding over family Aeshnidae
It is concluded that Sialkot is rich with dragonfly diversity
Summary
They are extremely efficient bioindicators for sustainability of the ecosystem as predators as well as quality detectors [6], highly sensitive to the climatic changes [7]. Dragonflies have multiple roles in ecosystem, predators of small insect from larvae to adults and aquatic to terrestrial habitats as well as a source of food for aquatic population like frog and fishes [15]. The feeding habits in dragonfly varies according to the life stages larvae are predators of freshwater habitats [16], whereas, Adults might be pests of crops as well as predators feeding on small organisms playing important role in ecosystem sustainability [17]. Statistical analysis Different indices used for determination of biodiversity were applied on collected data to check diversity, distribution, species richness and evenness like Shanon index and Simpson index. This diversity was compared with other regions of country like Potohar Plateau [22] This experiment documents and reports 10 dragonfly species belonging to 7 genera and 2 families [23].
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
