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Crop Depredation by Birds in Deccan Plateau, India
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.ORCID iD: 0000-0003-1955-4647
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630).ORCID iD: 0000-0003-4350-9950
2014 (English)In: International Journal of Biodiversity, ISSN 2314-4149, E-ISSN 2314-4157, no 947683, 8- p.Article in journal (Refereed) Published
Abstract [en]

Extent of crop depredation in agricultural fields of groundnut, pearl millet, peas, sorghum and sunflower was assessed in Pune, Akola and Amravati, the three productive districts of Maharashtra, India. The study included interviews with the farmers, identification of the bird species responsible for the crop depredation and actual field assessment of damage.The problem of crop depredation is severe for the crops mostly during harvesting season. Most farmers were not satisfied with the conventional bird repelling techniques. Amaximum depredation was observed by Sorghum crops by house sparrows Passer domesticus, baya weavers Ploceus philippinus, and rose-ringed parakeets Psittacula krameri, accounting to 52%of the total damage. Blue rock pigeons Columba livia damaged 42% of the peas crop (chick peas and pigeon peas), while house sparrows and baya weaver damaged the roundnut crop by 26% in the sampling plots. House sparrow Passer domesticus and baya weaver Ploceus philippinus damaged the groundnut crop in the sampling plots just after the sowing period. The sustainable solution for reducing crop depredation is a need for the farmers and also such techniques will help avoid direct or indirect effects of use of lethal bird control techniques on bird species.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2014. no 947683, 8- p.
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-150435DOI: 10.1155/2014/947683OAI: oai:DiVA.org:kth-150435DiVA: diva2:743385
Note

QC 20140908

Available from: 2014-09-04 Created: 2014-09-04 Last updated: 2017-12-05Bibliographically approved
In thesis
1. Bird Species in Urban and Agricultural Landscapes: Bird diversity patterns along an urbanisation gradient and crop damage caused by birds on the Deccan Plateau, India
Open this publication in new window or tab >>Bird Species in Urban and Agricultural Landscapes: Bird diversity patterns along an urbanisation gradient and crop damage caused by birds on the Deccan Plateau, India
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The major human activities that have transformed the Earth include agriculture and urbanization. The present study was conducted to contribute to a description of the effect on birds of urbanization and agriculture in an Indian region. Terrestrial bird assemblages were censused along a five-stage urbanisation gradient between January and April 2010-2013 near the city of Amravati, on the Deccan Plateau, Central India. Altogether, 89 species of birds were recorded, with the highest species richness in the rural areas (67 species) and lowest in the urban stage (29 species). The assemblages were significantly nested in all the five stages. Maximum cumulative species abundance (12 399 individuals over four years) was found in the urban stage, and was due to the constant presence of large groups of Rose-ringed Parakeets (Psittacula krameri). The lowest bird abundance was found in the industrial zone (4837 in total), where there was also a nearly two-fold decrease from 2010 to 2013. Thirty-six species demonstrated significant variation in their densities at least in one stage and between at least two months (p<0.05). Densities of 13.9% (n=5) of those species varied significantly in two stages, that of Copsychus saularis in three stages, and of Phoenicurus ochruros, in all five stages. Urban, suburban, periurban and forest stages were characterised by relatively stable species densities (significant changes observed only for 17.2% (n=5), 17.1% (n=6), 12.9% (n=7), and 17.8% (n=16) species, respectively). The additive diversity partitioning indicated that of the overall diversity (gamma-diversity), alpha diversity (within transects located within one stage) contributed 50.1% to the total diversity, and the controbution of within-stage variability was small (2.7%). Additionally, censuses on cultivated fields were taken. In two areas under mixed cropping systems, 53 bird species were identified in the two years period between June and December, 2011 and 2012. Out of the 53 detected species, only 14 were common (recorded at ≥50% of visits). Twenty-one species were recorded at Zadgaon in crops of tur (Cajanus cajan), cotton (Gossypium arboreum) and soybean (Glycine max). Nineteen species were recorded at Bhankhed in jawar (Sorghum bicolor), cotton and mung bean (Phaseolus aureus). At Zadgaon, territorial activity was observed in four species: the House Sparrow (Passer domesticus), Jungle Babbler (Turdoides striata), Yellow-eyed Babbler (Chrysomma sinense) and Red-wattled Lapwing (Vanellus indicus). The study indicated that four bird species were found under high risk, thirteen species at medium risk and eight species at low risk due to pesticide applications in croplands. The extent of crop damage in fields of groundnut, pearl millet, peas, sorghum, and sunflower was assessed by doing actual field censuses. The sustainable solution for reducing crop damage is a need for the farmers and such techniques will help to avoid direct or indirect effects of use of lethal bird control techniques on bird species diversity.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2014. x, 31, xiv p.
Series
TRITA-LWR. PHD, ISSN 1650-8602 ; 2014:08
Keyword
Bird assemblage structure, Forest-urban gradient, Scale-sensitive diversity, Crop depredation, Crop damage assessment, Deccan Plateau, India.
National Category
Natural Sciences
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-154421 (URN)978-91-7595-321-2 (ISBN)
Public defence
2014-11-14, Kollegiesalen, Brinellvägen 8, KTH Royal Institute of Technology, Stockholm, Sweden, Stockholm, 14:00 (English)
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Supervisors
Note

QC 20141022

Available from: 2014-10-22 Created: 2014-10-20 Last updated: 2014-10-22Bibliographically approved

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Kale, Manoj AshokraoBhattacharya, Prosun

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