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I've been here for months
surveying dozens of logged and

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burned forests. My team and I
have installed autonomous

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acoustic sensors in the
understory of nearly 40 degraded

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forest fragments. We're
recording soundscapes. The

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soundscapes are effectively
digital records of the birds,

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bats, insects, frogs and mammals
that together make up that

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forest's distinct acoustic
fingerprint. We can therefore

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harvest sounds as scientific
measurements. I'm Danielle

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Rappaport. I'm an earth system
scientists at the Amazon

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investor coalition. I'm in the
region known as the Ark of

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Deforestation. This area is
ground zero for repeated forest

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fire risk. We want to know
whether forests that were burned

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once are ecologically similar to
forests burned twice, thrice or

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even five times. Can we use
sound measurements of ecosystem

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composition from under the
forest canopy to complement our

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satellite and aircraft
observations from above the

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forest canopy.

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We are in sight 14 B. It's 1130.
Tuesday the 30th. This is a site

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that was burned five times. You
see the majority of the forest

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cover is two and a half meters.
There's no there are no trees

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within 50 meter diameter of us.
They're only within eye distance

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there's only three...

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We use Landsat satellite data to
survey the last 33 years of fire

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logging and deforestation
activity. We're now

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complementing these observations
of habitat structure sampled

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from above the canopy with below
canopy measurements of habitat

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youth. We spent a total of three
months collecting soundscapes

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and we'll be continuing this
work to understand the dynamics

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of degradation as fires continue
to rage across this landscape.