Joan Wiers

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As tree species face decline, ‘assisted migration’ gains popularity in Pacific Northwest

Credit: Vlada Karpovich from Pexels As native trees in the Pacific Northwest die off due to climate changes, the U.S. Forest Service, Portland, Oregon and citizen groups around Puget Sound are turning to a deceptively simple climate adaptation strategy called “assisted migration.” As the world’s climate warms, tree growing ranges in the Northern Hemisphere are

Some stick insects that normally reproduce through parthenogenesis found to mate on occasion

Neighbour-joining networks of pairwise distances between individuals within parthenogenetic Timema species: A. T. genevievae. B. T. monikensis. C. T. douglasi. D. T. shepardi. Individuals of the two studied populations in each species are distinguished by brown and blue labels. Credit: Proceedings of the Royal Society B: Biological Sciences (2023). DOI: 10.1098/rspb.2023.0404 A team of ecologists

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