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ScienceDaily: Top Environment News |
| Peruvian gold rush turns pristine rainforests into heavily polluted mercury sinks Posted: 28 Jan 2022 05:57 AM PST Illegal gold mining in the Peruvian Amazon is causing exceptionally high levels of atmospheric mercury pollution in a nearby patch of pristine rainforest. One stand of old-growth pristine forest had the highest levels of mercury ever recorded, rivaling industrial areas where mercury is mined. Birds from this area have up to twelve times more mercury in their system than birds from less polluted areas, a level of poisoning that should harm their reproduction. |
| Crowding, climate change, and the case for distancing among trees Posted: 27 Jan 2022 02:26 PM PST In the age of large-scale fires, forest-wide beetle invasions, and frequent drought, maintaining 'ideal' historical conditions is becoming increasingly unrealistic. Novel conditions require different strategies; lower crowding for trees can increase chances of survival after fire. Results from two long-term studies show that chances for long-term tree survival increased when trees had more space, by reducing competition and helping trees recover from fire more quickly. |
| Gene regulation: How long do proteins bind? Posted: 27 Jan 2022 11:15 AM PST Researchers show how a DNA-binding protein can search the entire genome for its target sequence without getting held up on the way. The result contradicts our current understanding of gene regulation - the genetic code affects how often the proteins bind, but not for how long. |
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