Defaunation shadow on mutualistic interactions [Biological Sciences]

Tregidgo et al. (1) show that size-selective overfishing has drastically depleted and downsized populations of tambaqui (Colossoma macropomum) along the Purus River, Amazonia. Because fishers have historically targeted the largest individuals, tambaqui ∼1,000 km upriver are twofold larger than those near the Manaus rainforest metropolis (1). Here, we demonstrate that...

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