A review of the potential impacts of coastal mosquito control programs on Australian Stingless Bees (Apidae, Meliponini)—likely exposure pathways and lessons learned from studies on honey bees

Environmental Entomology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 5, 2024

The impact of the programmatic use larvicides for mosquito control on native stingless bees (e.g., Apidae, Meliponini) is a growing concern in Australia due to heightened conservation awareness and growth hobbyist bee keeping. In Australia, two most widely used are bacterium Bacillus thuringiensis var. israelensis (Bti) insect hormone mimic methoprene (as S-methoprene). Each has unique mode action that could present risk other pollinators. Herein, we review potential impacts these Australian conclude their influence mitigated by low recommended field rates, poor environmental persistence, seasonal intermittent nature applications. Moreover, evidence suggests may display high physiological tolerance Bti similar observed honey (Apis mellifera), whose interactions with B. thuringiensis-based biopesticides reported. summary, neither or likely pose significant health nests. However, current knowledge limited regulatory testing requirements only require as toxicological models. To bridge this gap, suggest expanded include nontarget insects. This imperative improving our understanding risks pesticides pollinator conservation.

Language: Английский

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First Records of Heartbeats via ECG in a Stingless Bee, <em>Melipona flavolineata</em> (Apidae, Meliponini), during Contention Stress, Using Isoflurane as an Anesthetic

Published: May 9, 2023

The hemodynamic activity of Melipona flavolineata workers was evaluated during restraint stress for a period 30 minutes. observed parameters were power variation in the elapsed time, and subsequently six periods one second divided called: A, B, C, D, E F; each electrocardiographic evaluated: Heart rate, Amplitude, R-R Interval, Duration QRS Q-T interval. experiment carried out with 8 worker bees M. flavolineata, which electrodes nickel-chromium alloy made. previously anesthetized isoflurane properly contained fixed base stereotaxis electrode implanted. All these procedures performed inside Faraday cage. results showed oscillations recording highest energy level between 300 600 s. amplitude duration underwent changes recorded period. However, interval there no difference recordings. Thus, cardiac can be used as biomarker being to clarify physiological issues or alterations caused by toxic agents indicate risk factors animals.

Language: Английский

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Short communication: Is there a difference in the sensitivity of Africanised and European honeybees to thiamethoxam or dimethoate?

Environmental Pollution, Journal Year: 2023, Volume and Issue: 334, P. 122230 - 122230

Published: July 19, 2023

Language: Английский

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Impacts of the insecticide thiamethoxam on the native stingless bee Plebeia catamarcensis (Hymenoptera, Apidae, Meliponini)

Environmental Pollution, Journal Year: 2023, Volume and Issue: 339, P. 122742 - 122742

Published: Oct. 13, 2023

Language: Английский

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Short Communication: Is There a Difference in the Sensitivity of Africanised and European Honeybees to Thiamethoxam or Dimethoate?

Published: Jan. 1, 2023

The similarity of sensitivity adult Africanised and European honeybees following acute oral exposure to thiamethoxam has been questioned. Data collated from contact toxicity testing a range containing products (solo mixtures) shows that the these can be directly predicted active substance honeybees. Similarly, dimethoate bees lies within same as There are no major differences in honeybee individuals dimethoate.

Language: Английский

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