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The activities of cropland birds in an agricultural land are most likely unpredictable in the rain fedregion of Maharashtra, India, and therefore the exposure to risk of pesticides application by croplandbird species cannot be sufficiently categorized. The pattern of abundance, territorial, foraging and otheractivities of cropland avian species was examined at two croplands in Amravati District of MaharashtraState to distinguish the susceptibility of bird species to the application of pesticide use. Overall, 53 birdspecies were identified in the two croplands over two years period during 2011 and 2012, from June toDecember. However, out of 53 species, only 14 species were common (recorded at ≥50 of visits) in bothcroplands. Twenty-one (21) bird species were recorded at Zadgaon Cropland in crops of tur (Cajanuscajan), cotton (Gossypium arboreum) and soybean (Glycine max). Nineteen (19) bird species wererecorded at Bhankhed Cropland for more than 50% of visits in crops of jawar (Sorghum bicolor), cottonand mung (Phaseolus aureus). For Zadgaon cropland, territorial activity is most significant for fourspecies: house sparrow (Passer domesticus), jungle babbler (Turdoides striata), yellow-eyed babbler(Chrysomma sinense) and red-wattled Lapwing (Vanellus indicus). House sparrow and jungle babblerwere maximum, yellow-eyed babbler was less frequent but more than other species in the month ofJune, while red-wattled lapwing was maximum in the month of July. Foraging was the imperativeactivity for most of the species in all months: 24 to 49% of the birds in June; 41 to 61% of the birds inJuly; 63 to 90% of the birds in August; 77 to 97% of the birds in September; 57 to 97% of the birds inOctober; 66 to 98% of the birds in November and 74 to 97% of the birds in December. For Bhankhedcropland, foraging was significantly less for Ashy Prinia (Prinia socialis), Brahminy Myna (Sturniapagodarum) and Black Drongo (Dicrurus macrocercus) in the month of June. The application ofpesticides in croplands took place from June to August, which means four species were under highrisk, 13 species were at medium risk and eight species at low risk. The level and intensity of thisexposure depends on occurrence of types of species in both croplands. This study is significant torecognize crucial species that can be used for detailed study on exposure to pesticides used in cropland. QC 20130830 |
