The effects of agrochemicals on Lepidoptera, with a focus on moths, and their pollination service in field margin habitats

Hahn, Melanie; Schotthöfer, Annalena; Schmitz, Juliane; Franke, Lea; Brühl, Carsten A.

doi:10.1016/j.agee.2015.04.002

Cited by 42 publications

(37 citation statements)

References 58 publications

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“…Moreover, some herbicides can be directly toxic to larval stages of pollinators (Hahn et al . ). Weed‐removal is at the core of management of herbicide‐tolerant GM‐crops and while comparatively understudied, these crops can be associated with lower pollinator densities (Bohan et al .…”

Section: Insecticides and Herbicidesmentioning

confidence: 97%

“…This is true not only for in-field floral resources but also for those present in field margins, which can be exposed to herbicide drift from adjacent crops (Egan et al 2014;Hanley & Wilkins 2015;Bohnenblust et al 2016). Moreover, some herbicides can be directly toxic to larval stages of pollinators (Hahn et al 2015). Weed-removal is at the core of management of herbicide-tolerant GM-crops and while comparatively understudied, these crops can be associated with lower pollinator densities (Bohan et al 2005;Bohnenblust et al 2016).…”

Section: Insecticides and Herbicidesmentioning

confidence: 99%

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Ecological intensification to mitigate impacts of conventional intensive land use on pollinators and pollination

et al. 2017

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Worldwide, human appropriation of ecosystems is disrupting plant-pollinator communities and pollination function through habitat conversion and landscape homogenisation. Conversion to agriculture is destroying and degrading semi-natural ecosystems while conventional land-use intensification (e.g. industrial management of large-scale monocultures with high chemical inputs) homogenises landscape structure and quality. Together, these anthropogenic processes reduce the connectivity of populations and erode floral and nesting resources to undermine pollinator abundance and diversity, and ultimately pollination services. Ecological intensification of agriculture represents a strategic alternative to ameliorate these drivers of pollinator decline while supporting sustainable food production, by promoting biodiversity beneficial to agricultural production through management practices such as intercropping, crop rotations, farm-level diversification and reduced agrochemical use. We critically evaluate its potential to address and reverse the land use and management trends currently degrading pollinator communities and potentially causing widespread pollination deficits. We find that many of the practices that constitute ecological intensification can contribute to mitigating the drivers of pollinator decline. Our findings support ecological intensification as a solution to pollinator declines, and we discuss ways to promote it in agricultural policy and practice.

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Section: Insecticides and Herbicidesmentioning

confidence: 97%

Section: Insecticides and Herbicidesmentioning

confidence: 99%

Ecological intensification to mitigate impacts of conventional intensive land use on pollinators and pollination

et al. 2017

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“…, Hahn et al. ). Moths are significantly better both at pollinating female flowers and at dispersing pollen over distance than diurnal visitors (Young , Barthelmess et al.…”

Section: Introductionmentioning

confidence: 99%

“…Pollination is conducted by both diurnal and nocturnal insects, and pollen is transported nocturnally by a broad range of generalist moth species of several families (Macgregor et al 2017). As a result, the species has been used as a model organism in studies of nocturnal pollination by moths in Europe and North America (Barthelmess et al 2006, Hahn et al 2015. Moths are significantly better both at pollinating female flowers and at dispersing pollen over distance than diurnal visitors (Young 2002, Barthelmess et al 2006), but previous studies have not investigated whether the two groups act to provide complementarity or redundancy to the pollination system of S. latifolia.…”

Section: Introductionmentioning

confidence: 99%

Effects of street lighting technologies on the success and quality of pollination in a nocturnally pollinated plant

et al. 2019

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Artificial light at night (ALAN) is an increasingly important driver of global change. Lighting directly affects plants, but few studies have investigated indirect effects mediated by interacting organisms. Nocturnal Lepidoptera are globally important pollinators, and pollen transport by moths is disrupted by lighting. Many street lighting systems are being replaced with novel, energy-efficient lighting, with unknown ecological consequences. Using the wildflower Silene latifolia, we compared pollination success and quality at experimentally lit and unlit plots, testing two major changes to street lighting technology: in lamp type, from high-pressure sodium lamps to light-emitting diodes, and in lighting regime, from fullnight (FN) to part-night (PN) lighting. We predicted that lighting would reduce pollination. S. latifolia was pollinated both diurnally and nocturnally. Contrary to our predictions, flowers under FN lighting had higher pollination success than flowers under either PN lighting or unlit controls, which did not significantly differ from each other. Lamp type, lighting regime, and distance from the light all significantly affected aspects of pollination quality. These results confirm that street lighting could affect plant reproduction through indirect effects mediated by nocturnal insects, and further highlight the possibility for novel lighting technologies to mitigate the effects of ALAN on ecosystems.

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“…Modern agricultural lands are often subject to intensified use, characterized by increased field sizes, decreased crop diversity and reduced availability of semi-natural habitats. Moreover, they are subject to high inputs of agrochemicals, mainly Plant Protection Products (PPPs) (Hahn et al, 2015), used to safeguard agricultural production from pests (Sciarra et al, 2015). Globally, agricultural producers apply approximately 3 million tons of pesticides per annum, worth around USD 40 billion (Popp et al, 2012); insecticide use reached 12.2 billion in 2015, and the market is projected to reach more than16.4 billion by 2019 (AAVV, 2015).…”

Section: Introductionmentioning

confidence: 99%

Systematic Review of the Effects of Chemical Insecticides on Four Common Butterfly Families

Mulé

Sabella

Robba

et al. 2017

Front. Environ. Sci.

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Safeguarding crop productivity by protecting crops from pest attacks entails the wide use of plant protection products that provide a quick, easy and cheap solution. The objective of this study is to understand the effects of insecticides used in agriculture on non-target butterflies, specifically on the families Lycaenidae, Nymphalidae, Hesperiidae, and Papilionidae. To achieve this goal, a formal systematic review was performed according to European Food Safety Authority (EFSA) guidelines, by entering a combination of keywords on 3 online databases. Three reviewers independently extracted information on study characteristics and quality. The main results were collected and grouped by the insecticide used, butterflies species and family, and endpoints. The output was valuable but heterogeneous as the endpoints and methodologies of the studies reviewed were different. Few experimental studies on the effects of insecticides on the most common butterfly families have been published. Naled and permethrin are the most commonly used insecticides in the experiments, whilst the target organisms of these studies are Vanessa cardui, Danaus plexippus, Heliconius charitonius, belonging to the Nymphalidae family, and Eumaeus atala, belonging to the Lycaenidae family; the effects were evaluated on all developmental stages, with special attention to the larval phase. This systematic review highlights the need for more studies on the effects of chemical insecticides on non-target Lepidoptera in light of their ecological importance and the extensive use of these chemical products.

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The effects of agrochemicals on Lepidoptera, with a focus on moths, and their pollination service in field margin habitats

Cited by 42 publications

References 58 publications

Ecological intensification to mitigate impacts of conventional intensive land use on pollinators and pollination

Ecological intensification to mitigate impacts of conventional intensive land use on pollinators and pollination

Effects of street lighting technologies on the success and quality of pollination in a nocturnally pollinated plant

Systematic Review of the Effects of Chemical Insecticides on Four Common Butterfly Families

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