Water

This is why it's vital to map rivers and streams that sometimes run dry

Non-perennial rivers and streams are very valuable ecosystems as they are home to many distinct species that are adapted to cycles of water presence and absence. Image: REUTERS/Amr Abdallah Dalsh

Katherine Gombay
Senior Communications Officer, McGill University
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Fig. 2: Climate-induced aridity and hydrologic variables are the main predictors of global flow intermittence.
Being able to predict the intermittent flow of rivers and streams could help scientists to better protect their ecosystems. Image: Nature
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