New research finds that higher temperatures can make monarch butterflies less able to cope with a parasite. Infections have more than tripled since 2002, and warmer conditions reduced monarch tolerance to infection.
Photo by Bankim Desai, Unsplash
Researchers found that long-term exposure to low levels of a common agricultural insecticide caused faster physiological aging and shorter lifespans in wild and laboratory fish. The study links telomere shortening and lipofuscin buildup to chlorpyrifos exposure.
A Tulane University study found that rising temperatures increase aggression in invasive brown anoles more than in native green anoles. Researchers tested pairs of lizards in controlled enclosures and say warming could favour the invasive species.
A Washington State University review finds that human-made beaver dams, or beaver mimicry, can help rivers and streams. The studies show benefits for water storage, cooler summer temperatures, biodiversity and fire resistance, but more research is needed.
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