On today’s episode, we discuss the cutting-edge remote sensing technologies used to monitor ecosystems like rainforests and coral reefs. We also listen to a few ecoacoustic recordings that are used to analyze species richness in tropical forests.
Category Archives: Media Coverage
KONA, Hawaii – Hawaiian lawmakers are considering a ban on some popular sunscreens to try to protect coral reefs.
Researchers found that oxybenzone, a UV filtering ingredient commonly found in lotions, harms the coral. Up to 14,000 tons of sunscreen wind up in coral reef areas of the ocean every year, and scientists say that contributes to the ecosystem’s damage.
The Big Island of Hawaii’s pristine coastline is home to one of the state’s largest coral reefs, a miles-long stretch that scientists say is dying at an alarming rate.
Collaborating researchers showcased their wide-ranging technology for journalists Monday at the Hilo Air Patrol.
A tree can be infected with either of the two species of Ceratocystis fungi that causes ROD for months before symptoms of the illness — browning leaves — appear, but once symptoms do show up the tree dies within weeks. An estimated 75,000 acres of ohia forest on the Big Island have already been affected. More than 200,000 ohia trees died between 2015 and 2016, with some research estimates placing the number closer to 300,000.
A high-winged twin engine airplane glides over the forest canopy, shooting laser beams into the woodlands. But this aircraft and the lasers beaming from it are not a scene in a science fiction film or even a military training exercise. They are on a mission to find life and death within the trees scattered across the forests of the Sierra Nevada.
Not all forests are created equal. The massive green swaths of Peru’s Andean and Amazonian forests host a more diverse array of life than previously thought — much of which has been hidden beyond the visible spectrum of light until now.
In August 2011, I climbed onto a small twin-propeller plane, crouching down to avoid smacking my head. The plane took off from Cusco, Peru, and was soon soaring over the Amazon rainforest. From the window, I could see a vast, unbroken layer of trees, greeting the horizon in every direction. It all looked the same—but it wasn’t. That seemingly uniform stretch of jungle contained many distinctive types of forest, each with its own distinctive climate and species. To the naked eye, the boundaries between these zones are invisible. We literally can’t see the forests for the trees.
Sometimes for a scientist, the disconnected pieces of years of research come together in a single, “really awesome” point in time.
Since its inception in 2006, CAO has produced interesting data art for numerous scientific journals. Making the December 2016 cover of Ecological Applications, this image shows CAO’s Visible-to-Shortwave Infrared (VSWIR) imaging spectrometer data over a reforested landscape in Panama. Different colors indicate differences in growth rates among tropical trees.
Talk about seeing the forest for the trees: an ecologist said that he has found the world’s 50 tallest tropical trees.
How can you tell if an avocado’s gone bad just by looking at it? By examining it through a hyperspectral (HS) camera. These devices – also known as imaging spectrometers – see things the human eye cannot by scanning the world across multiple channels of light. Where humans see three wavelengths in the colour spectrum (red, green and blue), hyperspectral sensors can detect as many as 480.