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Requier F, Abdelli M, Baude M, Genoud D, Gens H, Geslin B, Henry M, Ropars L. Neglecting non-bee pollinators may lead to substantial underestimation of competition risk among pollinators. CURRENT RESEARCH IN INSECT SCIENCE 2024; 6:100093. [PMID: 39220234 PMCID: PMC11364274 DOI: 10.1016/j.cris.2024.100093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 07/23/2024] [Accepted: 07/29/2024] [Indexed: 09/04/2024]
Abstract
Due to the increasing pressures on bees, many beekeepers currently wish to move their managed livestock of Apis mellifera into little disturbed ecosystems such as protected natural areas. This may, however, exert detrimental competitive effects upon local wild pollinators. While it appears critical for land managers to get an adequate knowledge of this issue for effective wildlife conservation schemes, the frequency of this competition is not clear to date. Based on a systematic literature review of 96 studies, we assessed the frequency of exploitative competition between honey bees and wild pollinators. We found that 78% of the studies highlighted exploitative competition from honey bees to wild pollinators. Importantly, these studies have mostly explored competition with wild bees, while only 18% of them considered other pollinator taxa such as ants, beetles, bugs, butterflies, flies, moths, and wasps. The integration of non-bee pollinators into scientific studies and conservation plans is urgently required as they are critical for the pollination of many wild plants and crops. Interestingly, we found that a majority (88%) of these studies considering also non-bee pollinators report evidence of competition. Thus, neglecting non-bee pollinators could imply an underestimation of competition risks from honey bees. More inclusive work is needed to estimate the risks of competition in its entirety, but also to apprehend the context-dependency of competition so as to properly inform wildlife conservation schemes.
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Affiliation(s)
- Fabrice Requier
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198, Gif-sur-Yvette, France
| | - Myriam Abdelli
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198, Gif-sur-Yvette, France
| | - Mathilde Baude
- Université d′Orléans, Chateau de la Source, BP 6749, Cedex2, 45067, Orléans, France
- Sorbonne Université, UPEC,Université Paris Cité, CNRS, IRD, INRAE, Institut d'Ecologie et des Sciences de l'Environnement (iEESParis), Paris, France
| | | | - Hadrien Gens
- Amis de la réserve naturelle du lac de Remoray, 25320, Labergement-Sainte-Marie, France
| | - Benoît Geslin
- Aix Marseille Univ, Avignon Univ, CNRS, IRD, IMBE, Marseille, France
- Université de Rennes (UNIR), UMR 6553 ECOBIO, CNRS, Rennes, France
| | - Mickaël Henry
- INRAE, UR 406 Abeilles et Environnement, Avignon, France
| | - Lise Ropars
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, CP 135, 57 rue Cuvier, 75005, Paris, France
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Cecchetto F, Villalba A, Vazquez ND, Ramirez CL, Maggi MD, Miglioranza KSB. Occurrence of chlorpyrifos and organochlorine pesticides in a native bumblebee (Bombus pauloensis) living under different land uses in the southeastern Pampas, Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167117. [PMID: 37717766 DOI: 10.1016/j.scitotenv.2023.167117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Pollinators such as Apidae bees are vital for ecosystems and food security. Unfortunately, their populations have declined due to several factors including pesticide use. Among them, the organophosphate insecticide chlorpyrifos, poses a global threat, while legacy compounds like organochlorine pesticides (OCPs) easily bioaccumulate, increasing the concern. Bombus pauloensis, a widely distributed native bee in Argentina, is used for commercial pollination; however, information regarding their health status is scarce. This study assessed chlorpyrifos and OCP levels in B. pauloensis (workers and males) and related environmental matrices living from three different land uses schemes, by means of GC-ECD and GC-MS. The ornamental horticulture field (OP) showed the highest total pesticide concentrations in workers (13.1 ng/g), flowers and soils, whereas the organic agriculture field (OA) exhibited the lowest. Chlorpyrifos was the most abundant compound, accounting for at least 20 % of pesticide load across all matrices. The food production horticulture field (FH) had the highest chlorpyrifos concentration in workers, males and soils (5.0, 4.4 and 3.3 ng/g, respectively), suggesting a local greater usage, whereas OA showed the lowest. Regarding OCPs groups, Drins and DDTs were predominant in most matrices, with FH males registering the highest levels (4.0 and 2.5 ng/g, respectively), closely followed by OP. However, metabolites' contribution indicated historical use and atmospheric inputs in all sites. Multivariate analyses confirmed the significance of site and bumblebee sex to explain pesticide composition. Males from all sites exhibited higher chlorpyrifos levels than workers and this trend was similar for some OCP groups. Overall, OA differed from FH and OP, indicating a correlation between production modes and pesticide profiles. This study demonstrates the value of B. pauloensis as a pesticide biomonitor but also offers insights into its populations' health in the area. In this sense, this information could be useful towards the preservation of this crucial pollinator.
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Affiliation(s)
- Franco Cecchetto
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina.
| | - Agustina Villalba
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina; Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), Funes 3350, Mar del Plata, Argentina
| | - Nicolas D Vazquez
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina; Laboratorio de Biología de Cnidarios, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina
| | - Cristina L Ramirez
- Departamento de Química, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Química Analítica y Modelado Molecular (QUIAMM), Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC), CONICET, Funes 3350, Mar del Plata, Argentina
| | - Matias D Maggi
- Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), Funes 3350, Mar del Plata, Argentina
| | - Karina S B Miglioranza
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina
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Long-term spatiotemporal patterns in the number of colonies and honey production in Mexico. Sci Rep 2023; 13:1017. [PMID: 36653357 PMCID: PMC9849204 DOI: 10.1038/s41598-022-25469-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/30/2022] [Indexed: 01/19/2023] Open
Abstract
Honey bee decline is currently one of the world's most serious environmental issues, and scientists, governments, and producers have generated interest in understanding its causes and consequences in honey production and food supply. Mexico is one of the world's top honey producers, however, the honey bee population's status has not been documented to date. Based on 32 years of data from beekeeping, we make a country-level assessment of honey bee colony trends in Mexico. We use generalized additive mixed models to measure the associations between the percent change in honey bee hives and the percent change in honey yield per hive in relation to land-use, climate, and socioeconomic conditions. Despite the fact that the average annual yield per hive increased from 1980 to 2012, we detected a significant decline in the percent change in the number of honey bee hives across the time period studied. We also found a relationship between climatic conditions and agricultural land use, with agriculture increases and high temperatures producing a decrease in the percent change in honey yield. We found a relationship between a reduction in the temperature range (the difference between maximum and minimum temperatures) and a decrease in the percent change in the number of hives, while socioeconomic factors related to poverty levels have an impact on the number of hives and honey yields. Although long-term declines in hive numbers are not correlated with poverty levels, socioeconomic factors in states with high and medium poverty levels limit the increase in honey yield per hive. These results provide evidence that land-use changes, unfavorable climatic conditions, political, and socioeconomic factors are partially responsible for the reductions in the percent change in honey bee hives in Mexico.
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