(Cornell University) Using data on 77 North American migratory bird species from the eBird citizen-science program, scientists at the Cornell Lab of Ornithology say that, in as little as four decades, it may be very difficult to predict how climate change will affect migratory bird populations and the ecosystems they inhabit. Their conclusions are presented in a paper published in the journal Ecography.
March 05, 2019
(Society for Ecological Restoration International) The United Nations today recognized the critical role of ecosystem restoration as a tool for improving environmental conditions and enhancing human communities by designating 2021-2030 the UN Decade on Ecosystem Restoration. This global recognition comes after growing calls and commitments by the international community to put ecological restoration at the forefront of national agendas. The Society for Ecological Restoration (SER) applauds this important step toward focusing the world's attention on the imperative of restoring degraded ecosystems.
March 04, 2019
(NIH/National Institute of Allergy and Infectious Diseases) New HIV infections declined by 30 percent in southern African communities where health workers conducted house-to-house voluntary HIV testing, referred people who tested positive to begin HIV treatment according to local guidelines, and offered other proven HIV prevention measures to those who tested negative. Local guidelines evolved during the study from offering HIV treatment based on immune health to offering immediate treatment for all.
March 04, 2019
(Boston College) Typically, light is converted to electricity by chemically altering a semiconductor to have a built-in electric field. A team of researchers from Boston College, the University of California Los Angeles, and Ecole Polytechnique Federale de Lausanne have developed an alternative means using a unique semimetal that intrinsically generates direct current through the nonlinear mixing of the waves of light.
March 04, 2019