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A Report on the Diversity of Spider Fauna from Charghad River Basin of Morshi, Amravati India

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A Report on the Diversity of Spider Fauna from Charghad River Basin of Morshi, Amravati India Short Communication Biosci. Biotech. Res. Comm. 12(3): 809-813 (2019) A report on the diversity of spider fauna from Charghad river basin of Morshi, Amravati India Deshmukh US* and Tekade AP Government Vidarbha Institute of Science and Humanities, Amravati 444604 (M.S) India ABSTRACT The present fi eld study was carried to record variety and abundance of spiders in Charghad river basin of Morshi tehsil, Amravati district, Maharashtra, India. The fi eld survey was carried from August 2017 to March 2018. The spi- ders were collected and photographed in quadrants covering all signifi cant area with natural vegetation along 5 km of river patch. Ideally, all sites along the river basin were studied during this period. Diversity index and Evenness of spiders were calculated. This survey shows the occurrence of 48 species belonging to 12 families. Of which Salti- cidae was prominent (9 Genera with 14 species) followed by Araneidae (5 Genera with 13 species). Shannon Wiener diversity index (H) is 2 and Evenness of species found to be 0.80. The study suggests Charghad river basin has a rich diversifi ed spider fauna. KEY WORDS: SPIDER, DIVERSITY, ABUNDANCE, CHARGHAD, MORSHI TEHSIL INTRODUCTION by 1686 species to 438 genera of 61 families (Keswani et al., 2012, WSC, 2015; WSC,2016). About 91 species Spiders make up a considerable proportion of the biodi- from Mygalomorphae under 28 genera belonging to 8 versity of this vast and diversifi ed nature. They are cos- families have been reported by Keswani et al., (2012). mopolitan and found in all types of ecosystems and hab- Abundance of spider depends on the type of environ- itat. Spiders are air-breathing predatory animals having ment, vegetation and prey base. River basin provides the two body segments, belonging to class Arachnida with ideal hunting ground for spiders. Spider as an ecological about 45,776 species under 3974 genera distributed over indicator plays an important role in maintaining eco- 114 families (WSC, 2016). In India, they are represented logical equilibrium, (Halarnkar and Pai 2018). ARTICLE INFORMATION: Corresponding Author: [email protected] Received 12th July, 2019 Accepted after revision 22nd Sep, 2019 BBRC Print ISSN: 0974-6455 Online ISSN: 2321-4007 CODEN: USA BBRCBA Thomson Reuters ISI ESC / Clarivate Analytics USA NAAS Journal Score 2019: 4.31 SJIF: 4.196 © A Society of Science and Nature Publication, Bhopal India 2019. All rights reserved. Online Contents Available at: http//www.bbrc.in/ DOI: 10.21786/bbrc/12.3/38 809 Deshmukh US and Tekade AP Charghad River is originated in Satpuda mountain (curled leaves, silk case). When walking in the grass, ranges near village Velmandali of Amravati district and is due to disturbances ground jumping of spiders was seen tributary of Wardha River. Charghad River fl ows through and by keeping their trail spiders were captured. Heavy Morshi tehsil and merges into Wardha River. Hippargi insect net sweeps were used through soft vegetation or et al., recorded an occurrence of spiders belonging to tall grassin a zigzag pattern in the marked area. After a 19, 25 and 31 respective families from Lonar, Melghat few sweeps, dump the content on fl at sheet and capture and Southern Tropical thorn forest, Solapur. The diver- the spider. But it is less effective in wet condition. In this sity of spider in Satpuda ranges adjacent to this study case, an inverted umbrella opened place was used under area was studied by Deshmukh and Raut (2013) recorded the bush or lowered branches. The branches were given 57 species belonging 35 genera under 14 families dur- vigorous shaking or striking them with sticks. ing 6-month survey in Salbardi forest (Satpura range). Spiders were dislodged and were collected in the Again Deshmukh and Raut (2014) studied the seasonal umbrella. This is mostly used and successful technique diversity of Salbardi forest (Satpuda range) and recorded which was also used in the present study. Any smooth 104 species of 52 genera under 18 families during year plastic bottle of 10 cm diameter and 11 cm depth was bur- 2014. Deshmukh and Chaudhari (2016) recorded 49 spi- ied within the ground surface with a funnel at top of the der species belonging to 22 genera under 9 families from container. Spiders tumble into the container and captured orange agroecosystem in the catchment area of upper in the collection bottle. Only mature spiders were collected Wardha dam, Amravati, Maharashtra. The diversity of for identifi cation they were photographed and release back spiders from Charghad river basin is not yet explored, in natural habitat. The keys of Platnick (1981-1987); Bar- so the attempt was made to study and make a checklist rion and Litsingerm (1995); Tikader (1987); Gajbe (2005) of spiders from this area. The ecosystem of Charghad were used for species identifi cation and to record classifi - river basin depends upon rainfall. The survey was made cation. Statistical analysis was done using Shannon Wie- to study diversity and abundance of spider’s fauna in ner diversity index (H) and Evenness of species. Charghad River Valley of Morshi Tehsil, Amravati Dis- trict, and Maharashtra, India. The study has been started in the month of August 2017 and extended to March 2018 along the river basin which is 45km from Amravati district of Maharashtra. The study area is located lati- tude 21.3241960 N and longitude 78.0138320 E at an ele- S = Species richness vation of 303 meters from sea level. Charghad River is H max = maximum diversity possible. originated in Satpuda mountain ranges near village Vel- E= Evenness mandali of Amravati district and passes through Morshi During a survey of 8 months in river basin, the indi- Tehsil being is tributary of Wardha River. Morshi Tehsil vidual belongsto 48 species of 31 Genera and 12 families has a temperature range of 32 to 480 C in summer and (table no. 1) were recorded. This present study indicates 16 to 270 C in winters. The rainfall is with southwest- ern monsoon from June to September having annual an Table 1. Family wise distribution of Spider Species average rainfall of 758.40 mm. and Genus. The river basin is fl ourished with various fl ora with Sr. no Name of Number of Number of perennial plants like Ficus bengalensis (wad), Acacia leu- Family Genus Species cophela (hiwar), Bauhinia racemosa (apta), Zyzypheus 1 Araneidae 5 13 vulgaris (ber), Acacia catechu (khir), Limonia acidissima 2 Clubionidae 1 1 (kaut), Bamboo and dominant grasses like Andropogon 3 Erasidae 1 1 martini (tikhari), Sorghum halepense (boru), Cynodon dictylon (hariali), Ichamum sulcatum (paonia), Ichamum 4 Hersilidae 1 1 laxum (sahada) and Andropogon contorlus (kusal) and 5 Lycosidae 2 2 Lantana cammera. Ideally all sites of the river basin were 6 Miturgidae 1 2 studied. The fi eld work was designed in 10 quadrants cov- 7 Oxyopidae 2 3 ering all signifi cant area with natural vegetation along 5 8 Pisauridae 3 3 km of river patch. Where sampling sites of 10 sq. meters 9 Salticidae 9 14 were selected and marked. Sampling was done from this 10 Sparassidae 1 1 10 sq. meter quadrants in river basin every weekend; 11 Tetragnathidae 2 4 mostly during from early morning to late night. Visual search was carried out by walking through the habitat 12 Thomisidae 3 3 and visually searching for spiders, their webs or retreats Total 31 48 810 A REPORT ON THE DIVERSITY OF SPIDER FAUNA BIOSCIENCE BIOTECHNOLOGY RESEARCH COMMUNICATIONS Deshmukh US and Tekade AP Table 2. Family wise distribution list of spider species from Charghad River basin Eco-system. Sr. no Family Species 1 Araneidae Araneus species (Male) Araneus Praesignis (Female) Araneus diadematus (Female) Argiopaemula (Female) Lariniadirecta (Female) Neoscona bengalensis (Female) Neoscona bengalensis (Male) Neosconacrucifera (Male) Neoscona mukerjei (Male) Neoscona species (Male) Neoscona species (Male) Neoscona species (Male) Poltys (Female) 2 Clubionidae Clubiona drassodes (Female) 3 Erasidae Stegodyphus species (Female) 4 Hersilidae Hersiliasavignyi (Female) 5 Lycosidae Acantholycosa lignaria (Female) Hippasa holmerae (Female) 6 Miturgidae Cheiracanthium inclusum (Female) Cheiracanthium insigne (Female) 7 Oxyopidae Oxyopes bharatae (Male) Oxyopes pankaji (Female) Oxyopes pankaji (Male) Peucetia latikae (Female) 8 Pisauridae Dolomedes species (Female) Pisaurinamira (Female) Pisaurinamira (Male) Thalassius marginellus (Female) 9 Salticidae Euophrys frontalis (Female) Harmochirus brachiatus (Female) Hasarius adansoni (Male) Myrmarachne species (Female) Parahelpis species (Female) Phidippus species (Male) Phintella vittata (Female) Plexippus insulanus (Male) Plexippus paykulli (Male) Plexippus paykullii (Female) Plexippus petersi (Female) Plexippus species (Female) Plexippus species (Male) Plexippus species (Female) Telamonia dimidiate (Female) 10 Sparassidae Heteropoda species (Female) 11 Tetragnathidae Leucauge dorsotuberculata (Female) Tetragnathas species (Female) Tetragnathas species (Male) Tetragnathas species (Male) Tetragnathas species (Male) 12 Thomisidae Misumena species (Male) Oxylate species (Female) Thomisus beautifularis (Female) BIOSCIENCE BIOTECHNOLOGY RESEARCH COMMUNICATIONS A REPORT ON THE DIVERSITY OF SPIDER FAUNA 811 Deshmukh US and Tekade AP is due to fall in water level that increase the abundance of vegetation in the river bed and which also coincides with the life cycle of most insects including grasshop- pers, aphids, millipedes, etc. Most of the spider species- belongs to family Salticidae and Oxyopidae were found abundant where grasses
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