scholarly journals Establishing realistic exposure estimates of solitary bee larvae via pollen for the use in risk assessment

2021 ◽  
Author(s):  
Tobias Pamminger ◽  
Christof Schneider ◽  
Raffael Maas ◽  
Matthias Bergtold
Keyword(s):  
Risk Assessment ◽  
Solitary Bee

scholarly journals How much pollen do solitary bee larvae consume? Or establishing realistic exposure estimates of solitary bee larvae via pollen for the use in risk assessment

2021 ◽  
Author(s):  
Tobias Pamminger ◽  
Christof Schneider ◽  
Raffael Maas ◽  
Matthias Bergtold
Keyword(s):  
Risk Assessment ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Solitary Bees ◽  
Published Data ◽  
Solitary Bee ◽  
Limited Information ◽  
Data Set ◽  
Scaling Models ◽  
Adult Body Weight

Bees foraging in agricultural habitats can be exposed to plant protection products. In order to limit the risk of adverse events to occur a robust risk assessment is needed, which requires reliable estimates for the expected exposure. Especially the exposure pathways to developing solitary bees are not well described and in the currently proposed form rely on limited information. To address this topic, we used a published data set on the volume of pollen solitary bees provide for their larvae to build two scaling models predicting the amount of protein and pollen developing solitary bees need based on adult body weight. We test our models using both literature and experimental data, which both support the validity of the presented models. Using scaling models in the bee risk assessment could complement existing risk assessment approaches, facilitate the further development of accurate risk characterization for solitary bees and ultimately will help to protect them during their foraging activity in agricultural settings.

scholarly journals Toxicity of Spirotetramat on Solitary Bee Larvae, Osmia Cornuta (Hymenoptera: Megachilidae), in Laboratory Conditions

2015 ◽  
Vol 59 (2) ◽  
pp. 73-83 ◽  
Author(s):  
Fabio Sgolastra ◽  
Simone Tosi ◽  
Piotr Medrzycki ◽  
Claudio Porrini ◽  
Giovanni Burgio
Keyword(s):  
Risk Assessment ◽  
Life Cycle ◽  
Biological Traits ◽  
Toxic Substances ◽  
Solitary Bee ◽  
Systemic Insecticide ◽  
Emergence Time ◽  
Laboratory Conditions ◽  
Food Body ◽  
Males And Females

AbstractIn this paper we assessed, under laboratory conditions, the toxicity of an active substance on solitary bee larvae of Osmia cornuta (Hymenoptera: Megachilidae). A field-realistic dose of the systemic insecticide spirotetramat was applied to the mass provisions. The insecticide’s effects on several life-cycle parameters were studied in males and females. Our results showed a significantly shorter post-emergence longevity in bees exposed to spirotetramat during the larval stage, compared to the control. The observed reduction in longevity was 18 and 15%, respectively, in males and females. Mortality rate and other biological traits (larval and spinning duration, emergence time, food/body conversion rate) did not show significant differences between the two treatments. The method described in this study can be used to test the effects of toxic substances (i.e. agrochemicals) on bees. Moreover, it can constitute a basis for the development of a standardised protocol in the first tier of the Environmental Risk Assessment for solitary bees.

Risk assessment in dentistry

1998 ◽  
Vol 62 (10) ◽  
pp. 756-761 ◽  
Author(s):  
CW Douglass
Keyword(s):  
Risk Assessment

1648: Multi-Institutional Validation of the UCSF Cancer of the Rostate Risk Assessment (CAPRA) for Prediction of Recurrence Following Radical Prostatectomy

2006 ◽  
Vol 175 (4S) ◽  
pp. 531-532
Author(s):  
Matthew R. Cooperberg ◽  
Stephen J. Freedland ◽  
David J. Pasta ◽  
Eric P. Elkin ◽  
Joseph C. Presti ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Radical Prostatectomy
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