Imidacloprid impairs performance on a model flower handling task in bumblebees (Bombus impatiens)

Phelps, Jordan D; Strang, Caroline; Sherry, David F.

doi:10.1007/s10646-020-02182-8

Cited by 9 publications

(7 citation statements)

References 160 publications

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“…Studies with similar experimental setup have shown results alike ours (e.g., Gill et al 2012;Gill & Raine 2014;Feltham et al 2014;Stanley et al 2015a;Samuelson et al 2016). Decrease in foraging effectiveness has been attributed to several different mechanisms, ranging from learning and memory impairment (Stanley et al 2015a;Samuelson et al 2016), chronic behaviour impairment (Gill & Raine 2014) and reduction in flower handling efficiency (Phelps et al 2020). However, as we did only measure the foraging bout duration, we are unable to determine the exact cause for the extended foraging bouts.…”

Section: Foraging Bout Durationmentioning

confidence: 54%

Temperature sensitive effects of the neonicotinoid clothianidin on bumblebee (<i>Bombus terrestris</i>) foraging behaviour

Kolano

Aarønes²,

Borgå

et al. 2021

J Poll Ecol

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Pollinating insects are an inherent part of most terrestrial ecosystems as they provide a crucial service for most angiosperms, including numerous important crops. A decrease in pollinator populations can therefore have severe consequences for both natural ecosystems and agricultural yields. Pesticide usage has been pointed out as one of the drivers behind pollinator declines. Globally, neonicotinoids are one of the most commonly used insecticides and studies have shown that exposure at sub-lethal levels can alter foraging behaviour, ultimately negatively affecting survival.Using a custom-made bumblebee colony monitoring system, we examined how the number and duration of foraging bouts of bumblebees (Bombus terrestris) on an individual level, and hive growth rate, was affected by exposure to low (6.5 µg/L) and high (10.6 µg/L) sub-lethal concentrations of the neonicotinoid clothianidin via nectar. We also examined possible interaction between clothianidin exposure and abiotic factors (temperature and precipitation), and its impact on foraging bout number and duration.Exposure to sublethal concentrations of clothianidin increased foraging bout duration in bumblebees. Furthermore, the foraging bout duration decreased with increasing temperature at both exposure concentrations, whereas the unexposed control group was not affected by temperature. Neither number of foraging bouts nor the daily rhythm of foraging bout duration was affected by clothianidin exposure or temperature. The foraging bout duration decreased with increasing precipitation in both exposed and non-exposed groups. However, we did not find any interaction between precipitation and exposure, suggesting that precipitation does not affect toxicity.Our study shows the importance of semi-natural experiments and accounting for ambient factors when assessing the risk that pesticide exposure may present to pollinators. We conclude that the effect of clothianidin exposure on bumblebee foraging behaviour is temperature sensitive and that local climatic conditions and future climate change scenarios should be considered in risk assessments of clothianidin and other insecticides.

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Section: Foraging Bout Durationmentioning

confidence: 54%

Temperature sensitive effects of the neonicotinoid clothianidin on bumblebee (<i>Bombus terrestris</i>) foraging behaviour

Kolano

Aarønes²,

Borgå

et al. 2021

J Poll Ecol

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“…The damage of neonicotinoids on bees, bumblebees and other species of beneficial insects has now been confirmed by many other studies (Long & Krupke, 2016;Arce et al, 2017;Phelps et al, 2020).…”

Section: On Bees and Batsmentioning

confidence: 67%

Pesticides: An Overview of the Current Health Problems of Their Use

Leoci¹,

Ruberti²

2021

GEP

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The necessity to produce increasing quantities of food to meet the demand of ever-increasing populations has led to the massive use of pesticides in agriculture. Their massive consumption derives from the need to subtract food from competition of fungi, bacteria, and insects and agricultural land from the invasion of competing weeds. Modern agriculture floats on an ocean of synthetic chemical compounds used to crop protection and food preservation during storage. Presently, worldwide about 2000 active ingredients have been listed, categorized into about 60 classes of chemicals. In the world, the overall pesticides, used in agriculture, are about 4.1 million tonnes/years. The exposure of animals and humans to pesticides could be related to neurotoxicity, endocrine disruption, liver and kidney damage, cancer, reproductive effects (sperm abnormalities, decreased fertility, fetal growth retardation, birth defects, or spontaneous abortion), and growth modifications. However, the knowledge about their potential damage to the organs of reproduction, breastfeeding, and infants is still largely insufficient. It is necessary to improve new methods to identify and regulate the long-term safety of pesticides use, to protect the environment and health, and to eliminate the adverse effect of pesticides on the environment and non-target organisms. The assessment of possible risks of old and new pesticides must be increased to include the possible effects on reproduction on animals and pregnancy loss even after a long time. In the meantime, it is necessary to minimize the use of synthetic chemical compounds by increasing the use of biological systems.

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“…The negative fitness effects of neonicotinoid insecticide ingestion have been well documented in bees, but more work is needed to examine neonicotinoid effects across a broader range of non‐target insects. In bees, at low concentrations (<50 ng/mL, readily found in field samples) bees suffer from reduced foraging efficiency and poor nutritional status (Azpiazu et al, 2019; Feltham, Park, & Goulson, 2014; Lämsä, Kuusela, Tuomi, Juntunen, & Watts, 2018; Morfin, Goodwin, Correa‐Benitez, & Guzman‐Novoa, 2019; Phelps, Strang, & Sherry, 2020; Scholer & Krischik, 2014; Stanley & Raine, 2016; 2017). There is also evidence for low‐dose effects on bee social behaviour, reproduction, navigation and flight performance (Bryden, Gill, Mitton, Raine, & Jansen, 2013; Crall et al, 2018; Fischer et al, 2014; Laycock, Lenthall, Barratt, & Cresswell, 2012; Scholer & Krischik, 2014; Switzer & Combes, 2016; Tosi, Burgio, & Nieh, 2017; Whitehorn, Wallace, & Vallejo‐Marin, 2017).…”

Section: Introductionmentioning

confidence: 99%

Adult monarch butterflies show high tolerance to neonicotinoid insecticides

Prouty

Bartlett

Krischik

et al. 2023

Ecological Entomology

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Numerous studies have documented the negative effects of neonicotinoids on bees; it remains crucial to examine how neonicotinoids affect other non‐target nectar‐feeding insects, such as the monarch butterfly, Danaus plexippus. Wildflowers growing near agricultural areas can be contaminated with neonicotinoids that affect survival or cause sublethal changes to behaviours of nectar‐feeding insects. Nectar residues of imidacloprid and clothianidin found in milkweeds and wildflowers adjacent to agricultural field range from 0 to 72.8 ng/mL. At field‐relevant doses, two neonicotinoids (imidacloprid and clothianidin) were studied for their effects on adult monarch survival, reproduction, flight and behaviour. First, we fed adult monarchs artificial nectar solutions ranging from 15 to 386 ng/mL of imidacloprid and 19 to 531 ng/mL of clothianidin. Neonicotinoid ingestion slightly reduced monarch reproduction but had no significant effects on survival, weight change, or activity levels. Second, we fed monarchs higher clothianidin doses (909 and 4030 ng/mL), that exceed field‐relevant levels by 22 and 99 times. These higher doses reduced monarch nectar consumption, survival, flight performance and reaction time in response to a drop test. Results show that adult monarchs tolerate field‐relevant doses as high as 54 ng/mL for imidacloprid and 75 ng/mL for clothianidin, with minimal lethal or sub‐lethal effects until much higher doses are supplied. We conclude that adult monarchs are more tolerant of ingested clothianidin and imidacloprid than indicated by previous research.

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Imidacloprid impairs performance on a model flower handling task in bumblebees (Bombus impatiens)

Cited by 9 publications

References 160 publications

Temperature sensitive effects of the neonicotinoid clothianidin on bumblebee (<i>Bombus terrestris</i>) foraging behaviour

Temperature sensitive effects of the neonicotinoid clothianidin on bumblebee (<i>Bombus terrestris</i>) foraging behaviour

Pesticides: An Overview of the Current Health Problems of Their Use

Adult monarch butterflies show high tolerance to neonicotinoid insecticides

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