Sublethal glyphosate exposure reduces honey bee foraging and alters the balance of biogenic amines in the brain DOI

Laura C McHenry,

Roger Schürch, McAlister Council‐Troche

et al.

Journal of Experimental Biology, Journal Year: 2025, Volume and Issue: 228(9)

Published: May 1, 2025

ABSTRACT Glyphosate is a broad-spectrum herbicide that inhibits the shikimate pathway, which honey bees (Apis mellifera), non-target beneficial pollinator, do not endogenously express. Nonetheless, sublethal glyphosate exposure in has been correlated to impairments gustation, learning, memory and navigation. While these impacted physiologies underpin bee foraging recruitment, effects of on important behaviors remain unclear, any proximate mechanism action poorly understood. We trained cohorts from same hives forage at one two artificial feeders offering 1 mol l−1 sucrose solution, either unaltered (N=40) or containing 5 mg acid equivalent (a.e.) (N=46). then compared key and, smaller subset bees, recruitment behaviors. Next, we quantified protein levels octopamine, tyramine dopamine, amino precursor tyrosine brains experimental collected 3 days after exposure. found treatment reduced their by 13.4% (P=0.022), brain content was modulated crossover interaction between number feeder visits (P=0.004). Levels octopamine were significantly with its precursors (P=0.011) (P=0.018) but control bees. Our findings emphasize critical need investigate impacts world's most-applied elucidate insects create better-informed pollinator protection strategies.

Language: Английский

Global trends in the number and diversity of managed pollinator species DOI Creative Commons
Julia Osterman, Marcelo A. Aizen, Jacobus C. Biesmeijer

et al.

Agriculture Ecosystems & Environment, Journal Year: 2021, Volume and Issue: 322, P. 107653 - 107653

Published: Sept. 11, 2021

Cultivation of pollinator-dependent crops has expanded globally, increasing our reliance on insect pollination. This essential ecosystem service is provided by a wide range managed and wild pollinators whose abundance diversity are thought to be in decline, threatening sustainable food production. The Western honey bee (Apis mellifera) amongst the best-monitored insects but state other less well known. Here, we review status trends all based publicly accessible databases published literature. We found that, global scale, number A. mellifera colonies increased 85% since 1961, driven mainly Asia. contrasts with high reported colony overwinter mortality, especially North America (average 26% 2007) Europe 16% 2007). Increasing agricultural dependency as threats associated managing non-native have likely spurred interest management alternative species for pollination, including bumble bees, stingless solitary flies that higher efficiency pollinating specific crops. identify 66 been, or considered potential be, crop seven subspecies currently commercially produced pollination greenhouse-grown tomatoes two trap-nested New Zealand. Other use include eight (mainly services orchards alfalfa fields) three fly used enclosures seed production). Additional each taxonomic category under consideration pollinator management. Examples 15 able buzz-pollinate, will enclosures, some which history production; their not yet established. To ensure sustainable, integrated landscapes, risks, benefits novel must considered. We, therefore, urge prioritization biodiversity-friendly measures maintaining native provide resilience future environmental changes.

Language: Английский

Citations

131
Glyphosate impairs collective thermoregulation in bumblebees DOI Open Access

Anja Weidenmüller,

Andrea Meltzer, Stefanie Neupert

et al.

Science, Journal Year: 2022, Volume and Issue: 376(6597), P. 1122 - 1126

Published: June 2, 2022

Insects are facing a multitude of anthropogenic stressors, and the recent decline in their biodiversity is threatening ecosystems economies across globe. We investigated impact glyphosate, most commonly used herbicide worldwide, on bumblebees. Bumblebee colonies maintain brood at high temperatures via active thermogenesis, prerequisite for colony growth reproduction. Using within-colony comparative approach to examine effects long-term glyphosate exposure both individual collective thermoregulation, we found that whereas weak level individual, ability necessary decreased by more than 25% during periods resource limitation. For pollinators our heavily stressed ecosystems, carries hidden costs have so far been largely overlooked.

Language: Английский

Citations

72
Indirect Effects of the Herbicide Glyphosate on Plant, Animal and Human Health Through its Effects on Microbial Communities DOI Creative Commons
A.H.C. van Bruggen, Maria R. Finckh, Min He

et al.

Frontiers in Environmental Science, Journal Year: 2021, Volume and Issue: 9

Published: Oct. 18, 2021

The herbicide glyphosate interferes with the shikimate pathway in plants and major groups of microorganisms impeding production aromatic amino acids. Glyphosate application on results a slow death, accelerated by reduced resistance to root pathogens. Extensive use has resulted increasing residues soil waterways. Although direct effects animals are limited, concerns have arisen about indirect harmful side effects. In this paper, we focus sublethal concentrations plant, animal human health due shifts microbial community compositions successive habitats. Research communities soil, rhizosphere guts been contradictory different integration levels studied. Most studies tested short-term treatment biomass or general composition at higher taxonomic intestinal tracts, found little effect. More detailed showed reductions specific genera species as well biological processes after application. Plant growth promoting rhizobacteria beneficial bacteria often negatively affected, while pathogenic fungi enhanced. Such implicated enhanced susceptibility Fusarium Rhizoctonia , birds mammals toxic Clostridium Salmonella species, bees Serratia Deformed Wing Virus. humans, exposure urine associated diseases neurological endocrine problems, but cause-effect relationships need be determined more detail. Nevertheless, outbreaks several plant related accumulation environment. Long-term underreported, new standards will needed for products

Language: Английский

Citations

100
The Present and Future of Insect Biodiversity Conservation in the Neotropics: Policy Gaps and Recommendations DOI Creative Commons
Natalie Duffus, Alejandra Echeverri,

Lena Dempewolf

et al.

Neotropical Entomology, Journal Year: 2023, Volume and Issue: 52(3), P. 407 - 421

Published: March 14, 2023

Abstract Emerging evidence suggests that insect populations may be declining at local and global scales, threatening the sustainability of ecosystem services insects provide. Insect declines are particular concern in Neotropics, which holds several world’s hotspots endemism diversity. Conservation policies one way to prevent mitigate declines, yet these usually biased toward vertebrate species. Here, we outline some key policy instruments for biodiversity conservation Neotropics discuss their potential contribution shortcomings conservation. These include species-specific action policies, protected areas Indigenous Community Conserved Areas (ICCAs), sectoral offsetting, market-based mechanisms, international underpin efforts. We highlight although can potentially benefit indirectly, there avenues could better incorporate specific needs into mentioned above. propose improvement. Firstly, evaluating extinction risk more Neotropical target at-risk species with conserve habitats within area-based interventions. Secondly, alternative pest control methods enhanced monitoring a range land-based production sectors. Thirdly, incorporating measurable achievable targets conventions. Finally, emphasise important roles community engagement public awareness achieving improvements policies.

Language: Английский

Citations

34
Terrestrial ecotoxicity of glyphosate, its formulations, and co-formulants: evidence from 2010–2023 DOI Creative Commons
Szandra Klátyik, G. Simon,

Marianna Oláh

et al.

Environmental Sciences Europe, Journal Year: 2023, Volume and Issue: 35(1)

Published: July 8, 2023

Abstract Glyphosate (GLY), the most widely used herbicide in world, is frequently detected various environmental matrices, including soil, foundation of agriculture. In practice, more than 2000 GLY-based (GBH) products are used, consisting one or active ingredients (AIs) and so-called “inert” co-formulants that increase efficacy AIs. However, focus ecotoxicological assessments mainly on AIs, while organisms exposed to complex pesticide formulations under real-world conditions. Overall, effects non-target indicate a broad range biochemical physiological modes action, which contrasts with general assumption herbicides specific act only target plants. Both GLY alone GBHs have unintended side-effects many terrestrial organisms, plants, microorganisms, insects, spiders, earthworms, as well vertebrates such amphibians, reptiles, mammals. One triggering mechanisms for these oxidative stress consequences parameters DNA damage. addition, disruptions physiological, behavioral ecological processes been reported. Most studies examined short-term single application GLY/GBH species. agricultural practice applying two three times during cultivation season over an extended period time, interactions other pesticides agrochemicals applied same field, within field landscape rarely considered. vast majority cases, toxicity exceeds GLY, demonstrating supposedly inert either toxic their own right interact add The chemical diversity different non-disclosure make it difficult attribute substances GBH. Moreover, impurities (e.g., heavy metals arsenic, chromium, cobalt) pose additional environment food safety risks. These impacts even critical because so distributed worldwide pollutants stressors. Based available literature ecotoxicity, given drastic decline biodiversity, we conclude continued high use GBHs, resulting increased exposure risk, cannot be considered ecologically sustainable.

Language: Английский

Citations

30
Toxicity of glyphosate to animals: A meta-analytical approach DOI Creative Commons

P.S. Evalen,

E.N. Barnhardt,

Jae‐Chun Ryu

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 347, P. 123669 - 123669

Published: March 7, 2024

Glyphosate (GLY)-based herbicides (GBHs) are the most commonly applied pesticide worldwide, and non-target organisms (e.g., animals) now regularly exposed to GLY GBHs due accumulation of these chemicals in many environments. Although GLY/GBH was previously considered be non-toxic, growing evidence indicates that negatively affects some animal taxa. However, there has been no systematic analysis quantifying its toxicity animals. Therefore, we used a meta-analytical approach determine whether is demonstrable effect across We further addressed effects vary (1) taxon (invertebrate vs. vertebrate), (2) habitat (aquatic terrestrial), (3) type biological response (behavior physiology survival), (4) dosage or concentration GLY/GBH. Using this approach, also determined adjuvants surfactants) commercial formulations increased for animals relative exposure alone. analyzed 1282 observations from 121 articles. conclude generally sub-lethally toxic animals, particularly aquatic marine habitats, did not exhibit dose-dependency. Yet, our analyses detected widespread publication bias so encourage continued experimental investigations better understand factors influencing

Language: Английский

Citations

8
Pesticide impacts on insect pollinators: Current knowledge and future research challenges DOI
Parthiba Basu, Hien T. Ngo, Marcelo A. Aizen

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176656 - 176656

Published: Oct. 2, 2024

Language: Английский

Citations

7
Toxicological assessment of agrochemicals on bees using machine learning tools DOI
Rodrigo Cupertino Bernardes, Lorena Lisbetd Botina, Fernanda Pereira da Silva

et al.

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 424, P. 127344 - 127344

Published: Sept. 27, 2021

Language: Английский

Citations

33
Does pesticide use in agriculture present a risk to the terrestrial biota? DOI
Daniel Brice Nkontcheu Kenko, Norbert Tchamadeu Ngameni,

Miranda Egbe Awo

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 861, P. 160715 - 160715

Published: Dec. 7, 2022

Language: Английский

Citations

28
Degradation of commercial glyphosate-based herbicide via advanced oxidative processes in aqueous media and phytotoxicity evaluation using maize seeds DOI

Victor E.C. da Silva,

Yasmin S. Tadayozzi, Fernando Ferrari Putti

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 840, P. 156656 - 156656

Published: June 13, 2022

Language: Английский

Citations

24