Amazon forests conjure visions of lush canopies, not giant branches crashing to the ground. But according to a recent study, published in Environmental Research Letters, dead branches frequently fall from the tops of trees in the Amazon, releasing a startling amount of carbon dioxide into the atmosphere.
Combinations of new technologies can rapidly increase our scientific knowledge in support of improved ecosystem conservation and management
July 2016 marks the 10th anniversary of a scientific idea hatched in a distant valley along Kauai Island’s northern coast in the central Pacific. The 2006 conception was preceded by ten other years of research on the chemical properties of plant canopies in far flung environments ranging from desert shrublands to tropical rainforests. That preceding decade had cumulatively yielded just a hint that a tree-of-life approach to studying forests might be possible at the mother of all scales – Earth’s biosphere.
Animal assemblages are often viewed as a product of the ecosystems in which they live, but in reality they are often the reason an ecosystem looks the way it does. The roles of animals in shaping ecosystems are so important that two special issues recently published in PNAS and Ecography focus specifically on megafauna (literately translated as ‘large animal’) and the important roles they play in ecosystems, as well as what we may have lost through their extinctions across much of the globe.
Multiple rock-derived nutrients now mappable at tree crown resolutions using CAO imaging spectroscopy
Source: Remote Sensing