MARC details
| 000 -LEADER |
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| fixed length control field |
04442nam a22002537a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20220107122842.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
180703b xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
IIITMK |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Sunish E (91717011) |
| 9 (RLIN) |
14453 |
| 245 ## - TITLE STATEMENT |
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| Title |
Diversity and guild structure of spiders in poyya pokkali rice agroecosystem, a range disjunct landscape in Thrissur, Kerala, India |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
MPhil EI 2017-2018 |
| 500 ## - GENERAL NOTE |
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| General note |
Background: Spiders play a very significant role in ecology by being exclusively<br/>predatory and thereby regulate insect populations. In India, Arachnology is still in its<br/>infancy compared with the breadth and depth of entomological research. Spiders<br/>represent a diverse and functionally important group of arthropods and the assessment<br/>of their status can provide much information useful in monitoring the integrity of<br/>biotic communities. The pokkali rice is a nutrient rich saline resistant variety of rice<br/>cultivated along the coastal ares of Thrissur, Alappuzha and Ernakulam district of<br/>Kerala. A pioneering study was conducted to document the spider diversity associated<br/>with Poyya pokkali rice agroecosystems of Thrissur district. Additionally an attempt<br/>was also made to characterize the cytochrome oxydase C subunit 1 (CO1) of salticid<br/>spider, Phintella vittata (C.L. Koch, 1846) based on spiders collected from four<br/>districts of Kerala. <br/>Methods: Extensive faunistic surveys of spiders in altitudinally different sites of<br/>Poyya Grama Panchayath was carried out for four months form December, 2017 to<br/>March, 2018. Spiders collected from different quadrates by hand picking and<br/>sweeping methods once in a week. The spiders collected were arranged into different<br/>functional groups or guilds, according to their ecological characteristics relating to<br/>foraging manner. Diversity indices were calculated. For molecular studies, spiders<br/>preserved in absolute alcohol and sequencing of DNA of different individuals of<br/>Phintella vittata using universal markers were carried out and p-distance analysis and<br/>Maximum Likelihood Trees were prepared. <br/>The Results: A total of 5,213 individuals belonging to 76 species coming under 50<br/>genera and 20 families were collected and dealt with. A mygalomorph species<br/>Annandaliella ernakulamensis was also reported. Twenty eight species are reported as<br/>endemic to India. Field photographs and microphotographs are provided. A checklist<br/>is prepared on collected spiders and arranged them into seven feeding guilds based on<br/>their foraging mode. The diversity indices analysis of spiders was also performed and<br/>it varies among different sites and most diverse sampling locality was found to be<br/>Chenthurunni with a value of 3.54 and 0.95 for Shannon-Weiner and Simpson Indices<br/>respectively, shows a stable ecosystem. The p-distance value obtained among the spiders <br/>collected from different localities was found to be trivial, though a positive<br/>correlation with the geographic distance and genetic distance could be established. <br/>Conclusion: Being lied in the Western Ghats, the Poyya Pokkali rice agroecosystem <br/>was hypothesised to possess a rich and diverse araneofauna. This hypothesis are<br/>satisfied by the outcome of this study. In fact, this scanty effort represents only a<br/>splinter of the fauna of Poyya pokkali rice fields. As this region with diverse climates<br/>and natural background, further investigations will certainly reveal many more<br/>species of spiders. The present study envisaged an in-depth study of the diversity and<br/>feeding behaviour of spiders of this biodiversity hotspot and shed some effort to bring<br/>this otherwise neglected animal group onto the conservation radar screen. The<br/>molecular study was carried out using two universal primers, hence the confinement<br/>in modest use of primers may also one of the reason s for the less divergence among<br/>spider individuals studied. Nevertheless, the results from this analysis have improved<br/>our understanding of intra-specific relationships among the spiders. <br/>Keywords: Spider diversity, Phintella vittata, p-distance, Guilds, Pokkali rice, Thrissur, Kerala , India. |
| 502 ## - DISSERTATION NOTE |
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| Degree type |
MPhil EI |
| Name of granting institution |
2017-2018 |
| Year degree granted |
INT |
| -- |
Dr. R. Jaishanker |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
SPIDER DIVERSITY |
| 9 (RLIN) |
14454 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
PHINTELLA VITTATA |
| 9 (RLIN) |
14455 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
P-DISTANCE |
| 9 (RLIN) |
14456 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
GUILDS |
| 9 (RLIN) |
14457 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
POKKALI RICE |
| 9 (RLIN) |
14458 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
THRISSUR |
| 9 (RLIN) |
14459 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
KERALA |
| 9 (RLIN) |
14460 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
INDIA |
| 9 (RLIN) |
14461 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
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