Tag Archives: invertebrates

How will insecticides affect streams under climate change?

How climate change will alter the effects of toxicants is a key concern in the 21st Century. Rising water temperature can increase the toxicity of some contaminants to stream-dwelling animals in laboratory conditions, as has been shown for the most widely used insecticides in the world – the neonicotinoids. But until this study, whether this translates to more realistic environmental scenarios remained to be tested. In this blogpost, Sam Macaulay talks about his mesocosm experiment studying the effects of rising water temperatures and neonicotinoids on stream invertebrate communities.

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Most microplastics in rocky intertidal snails stem from paint

In this blogpost, Sonja Ehlers reports how microplastic loads in rocky intertidal snails from the North Sea, Mediterranean and Atlantic Ocean are consistent across space and time. The majority of the contained microplastics consisted of paint chips that likely derived from ships or maritime equipment. Such paint chips can contain toxic antifouling substances and heavy metals.

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Year in Review – Part 3

In the third installment of the ‘Year in Review’ series, we present our readers a glimpse of the last lot of most visited posts in the year 2021. 

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Can clay minerals make copper oxide nanoparticles toxic?

In this blogpost by Jonas Fischer, springtails were exposed to copper oxide nanoparticles at realistic field concentrations in four soils of varying properties. Toxic effects occurred only in loamy soils and mostly at the lowest test concentrations. Reduced nanoparticle agglomeration and clay-nanoparticle interactions were considered being responsible for this observation.

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Plants and invertebrates face increasing applied pesticide toxicity

Increased efficacy of pesticides comes along with decreased applied amounts in agriculture – but does this translate to lower risks to non-target species? The answer is NO, if you ask scientists at the University of Koblenz-Landau who recently published a study in Science assessing changes in the use of 381 pesticides and toxicity to eight non-target species groups over the course of 25 years. In our blog, the authors explain the shifts in applied pesticide toxicity they found, and which species are increasingly at risk.

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