Back to Search
Start Over
Population dynamics, hunting nature on insect pests and existence of symbiotic bacterial microbes among leading transgenic cotton spiders
- Source :
- Journal of Asia-Pacific Entomology. 24:297-307
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- The genetically modified cotton holding Bt proteins, is noxious to bollworms larvae but very little is known about its impact on population of non-target spiders within the field. Studies conducted with the aim to identify spiders along with their abundance, prevalence pattern, preying habit on insect pests in Bt cotton (L280, Cry2Ab4) and commonness of symbiotic bacteria in these spiders. Spiders collections were made via vial tapping/jarring, from May to end of October (2018). In total, 13,342 spiders were recorded during the entire cropping season. Least relative abundance was in May (0.28%), highest in August (30.39%) while ahead decline was observed, reached to 12% in October. The 27 species were verified, least richness was in May (3 species), high in August (19 species), later in the end, reduced to 7 species. High abundance was of Hylyphantes graminicola (68.56%) and Neoscona theisi (19.98%). Existence of H. graminicola and Pardosa astrigera observed during the whole cropping season. Presence of seven guilds among spiders had a diverse nature of hunting insect pests and on number of species existed in the crop, maximum was from direct hunting habit. Composition and community structure of microbiota varied as of spider species. Proteobacteria was the most abundant bacterial phylum and topmost genus was Wolbachia in observed spiders. Five groups of bacteria distinguished across 4 clusters of spiders depending on core community of symbiotic bacterial genera. This effort is an initial step to get knowhow about spiders in Bt cotton, which will facilitate future research studies concerning spiders.
- Subjects :
- 0106 biological sciences
0301 basic medicine
education.field_of_study
biology
Population
Zoology
biology.organism_classification
01 natural sciences
Hylyphantes graminicola
010602 entomology
03 medical and health sciences
030104 developmental biology
Bt cotton
Graminicola
Abundance (ecology)
Insect Science
Wolbachia
Species richness
education
Symbiotic bacteria
Subjects
Details
- ISSN :
- 12268615
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- Journal of Asia-Pacific Entomology
- Accession number :
- edsair.doi...........ff36d09082b62714d73bc653a7cccc40
- Full Text :
- https://doi.org/10.1016/j.aspen.2021.01.002