A phototaxis assay to measure sublethal effects of pesticides on bees.

In agricultural areas, bees are pervasively exposed to pesticides at sublethal concentrations. Methods to establish whether these concentrations may cause negative effects are needed to assess the potential hazards of field-realistic levels of exposure. Bee risk assessment relies on a single species, the highly social Apis mellifera and, due to fundamental life history differences, available sublethal tests cannot be applied to solitary bees.

Co-exposure to a honeybee pathogen and an insecticide: synergistic effects in a new solitary bee host but not in .

Pesticides and pathogens are major drivers of bee declines. However, their potential interactions are poorly understood, especially for non- bees. This study assessed the combined effects of infestation by the honeybee pathogen and chronic exposure to the insecticide flupyradifurone on and .

Sublethal fungicide-insecticide co-exposure affects nest recognition and parental investment in a solitary bee.

Fungicides may interact synergistically with insecticides. However, our understanding of the impacts of sublethal insecticide-fungicide combinations on solitary bees is mostly restricted to laboratory studies, providing no information about potential consequences on behavior and reproductive success. We analyzed the effects of a fungicide application, alone and in combination with sublethal levels of an insecticide, on the nesting behavior and reproductive output of the solitary bee Osmia cornuta.

Chronic oral toxicity protocol for adult solitary bees (Osmia bicornis L.): Reduced survival under long-term exposure to a "bee-safe" insecticide.

Pollinators are essential for crop productivity. Yet, in agricultural areas, they may be threatened by pesticide exposure. Current pesticide risk assessments predominantly focus on honey bees, with a lack of standardized protocols for solitary bees.

Exposure to sublethal levels of insecticide-fungicide mixtures affect reproductive success and population growth rates in the solitary bee Osmia cornuta.

In agricultural environments, bees are routinely exposed to combinations of pesticides. For the most part, exposure to these pesticide mixtures does not result in acute lethal effects, but we know very little about potential sublethal effects and their consequences on reproductive success and population dynamics. In this study, we orally exposed newly emerged females of the solitary bee Osmia cornuta to environmentally-relevant levels of acetamiprid (a cyano-substituted neonicotinoid insecticide) singly and in combination with tebuconazole (a sterol-biosynthesis inhibitor (SBI) fungicide).

Bees exposed to climate change are more sensitive to pesticides.

Bee populations are exposed to multiple stressors, including land-use change, biological invasions, climate change, and pesticide exposure, that may interact synergistically. We analyze the combined effects of climate warming and sublethal insecticide exposure in the solitary bee Osmia cornuta. Previous Osmia studies show that warm wintering temperatures cause body weight loss, lipid consumption, and fat body depletion.

[Severe lactic acidosis in a pregnant woman with partial HELLP syndrome and COVID-19].

The present report describes the case of a 23-year old pregnant woman who was in the 36.5th week of gestation of her second pregnancy. She was attended at the emergency room because of dry cough and progressive dyspnea, in association with headache and myalgia.

Local and downstream cumulative effects of traditional meadow management on stream-water quality and multiple riparian taxa.

Water quality and riparian communities are among the most affected stream components by agriculture. However, little is known about the effects of riparian management for both aquatic and terrestrial taxa at different spatial scales. Here, we surveyed aquatic (diatoms) and terrestrial taxa (bryophytes, vascular plants, litter-dwelling snails, and ground and volant arthropods), to compare the abundance and richness of riparian taxa and chemical quality between reference and exposed sites in two stream reaches each of c.