![]() ![]() ![]() ![]() “Climate change isn’t something of the future. The changes coincide with a hotter, more variable climate, which could put a premium on leaner, more efficient bodies that help birds stay cool, the researchers say. What’s more, some species have grown longer wings. Many species have lost nearly 2 percent of their average body weight each decade, researchers report November 12 in Science Advances. Over 40 years, dozens of Amazonian bird species have declined in mass. An exemplar of the Amazon’s dazzling diversity, the experimental plot was to act as a baseline that would reveal how habitat fragmentation, from logging or roads, can hollow out rainforests’ wild menagerie.īut in this pristine pocket of wilderness, a more subtle shift is happening: The birds are shrinking. In a remote corner of Brazil’s Amazon rainforest, researchers have spent decades catching and measuring birds in a large swath of forest unmarred by roads or deforestation. ![]()
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