One of the great environmental issues of today is deforestation, with millions of hectares of forest lost across the planet in the past 30 years. This deforestation affects not only people living in the nearby areas but also threatens endangered species and contributes to global warming. And forests are complex ecosystems, so the loss of trees can have wide-reaching implications for biodiversity — a topic that is now being studied using sound.
Rappaport and her colleagues used a network theory approach to analyze data from multiple recorders around the forest, by listening to the overall soundscape rather than identifying the sounds of each individual species of birds, insects, primates, and more. This acoustic data was combined with data from NASA Landsat satellites about areas of logging or fires. The Landsat data stretches back over 30 years, so it helps give a timeline of activity in the Amazon as it is affected by human behavior. It was supplemented by lidar data showing a three-dimensional map of the rainforest canopy. Taken together, the soundscape can reveal surprising information about biodiversity in forests.
It is not the strongest of the species that survive，but the one most responsive to change.😆
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