Impacts of a pesticide on pollinator species richness at different spatial scales

Brittain, Claire; Vighi, Marco; Bommarco, Riccardo; Settele, Josef; Potts, Simon G.

doi:10.1016/j.baae.2009.11.007

Cited by 247 publications

(155 citation statements)

References 36 publications

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“…Evidence is building for the susceptibility of wild bee communities to pesticides in agricultural fields and landscapes [18,55,59,70,72]. Our findings suggest that heavy use of conventional pesticides, even some traditionally viewed as benign [39], can render our crops net sinks for bee populations.…”

Section: Discussionmentioning

confidence: 81%

Negative effects of pesticides on wild bee communities can be buffered by landscape context

et al. 2015

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Wild bee communities provide underappreciated but critical agricultural pollination services. Given predicted global shortages in pollination services, managing agroecosystems to support thriving wild bee communities is, therefore, central to ensuring sustainable food production. Benefits of natural (including semi-natural) habitat for wild bee abundance and diversity on farms are well documented. By contrast, few studies have examined toxicity of pesticides on wild bees, let alone effects of farm-level pesticide exposure on entire bee communities. Whether beneficial natural areas could mediate effects of harmful pesticides on wild bees is also unknown. Here, we assess the effect of conventional pesticide use on the wild bee community visiting apple (Malus domestica) within a gradient of percentage natural area in the landscape. Wild bee community abundance and species richness decreased linearly with increasing pesticide use in orchards one year after application; however, pesticide effects on wild bees were buffered by increasing proportion of natural habitat in the surrounding landscape. A significant contribution of fungicides to observed pesticide effects suggests deleterious properties of a class of pesticides that was, until recently, considered benign to bees. Our results demonstrate extended benefits of natural areas for wild pollinators and highlight the importance of considering the landscape context when weighing up the costs of pest management on crop pollination services.

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Section: Discussionmentioning

confidence: 81%

Negative effects of pesticides on wild bee communities can be buffered by landscape context

et al. 2015

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“…However, we know that agricultural intensification has increased the use of agrochemicals, resulting in potential habitat degradation within agricultural areas. Insecticides can cause mortality by direct intoxication [64] and can result in local shifts in wild bee diversity and abundance [65], whereas herbicides and fertilisers can affect pollinators indirectly by decreasing floral resource availability [66,67]. Risk assessment procedures for pesticides usually only consider effects on honey bees even though the effects of pesticide exposure varies between pollinator taxa [68].…”

Section: Box 3 Multiple Drivers Of Honey Bee Lossmentioning

confidence: 99%

Global pollinator declines: trends, impacts and drivers

Potts¹,

Biesmeijer²,

Kremen³

et al. 2010

Trends in Ecology & Evolution

4,661

3,605

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“…All of these factors also pose dangers to human beings. Acute and chronic human illnesses are rapidly increasing due to polluted water, air and food as a result of biomagnification of the toxic compounds (Tunaz and Uygun 2004;Brittain et al 2010;Damalas and Eleftherohorinos 2011;Zacharia 2011;Gill and Garg 2014;Ibrahim 2016;Mahmood et al 2016). Considering the various harmful effects of chemical pesticides, appropriate alternative strategies must be developed and explored.…”

Section: Introductionmentioning

confidence: 99%

Withania somnifera acts as a potential insect growth regulator in the polyphagous pest, Pericallia ricini

Gaur¹,

Kumar²

2018

Journal of Plant Protection Research

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Both seed and root extracts of the medicinal plant, Ashwagandha, Withania somnifera exhibit insect growth regulatory activity against the polyphagous pest, Pericallia ricini. Topical administration of W. somnifera seed and root extracts to last instar larvae of P. ricini disrupted moulting and metamorphosis, leading to a number of developmental abnormalities such as delay in larval-pupal and pupal-adult ecdysis, formation of larval-pupal, pupal--adult and larval-pupal-adult mosaics/chimeras, ecdysial failure, suppression of pupation and adult emergence and formation of abnormal pupae and adultoids. The treatment with seed extracts was more severe than that of root extracts as it completely suppressed the pupation and adult emergence. The results clearly suggest that the medicinal plant, W. somnifera acts as a potential insect growth regulatory (IGR) disrupting the moulting and metamorphosis as a consequence of interference with the endocrine system.

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Impacts of a pesticide on pollinator species richness at different spatial scales

Cited by 247 publications

References 36 publications

Negative effects of pesticides on wild bee communities can be buffered by landscape context

Negative effects of pesticides on wild bee communities can be buffered by landscape context

Global pollinator declines: trends, impacts and drivers

Withania somnifera acts as a potential insect growth regulator in the polyphagous pest, Pericallia ricini

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