“New technology and global observations have improved resource-management decision making from disaster detection and mitigation of fires, insect outbreaks, storms, and floods, to agricultural management and basic ecological research,” says Dennis Ojima (Colorado State University).
Our first views of Earth from space remind us that the planet is an integrated system of organisms, water, land, and atmosphere. These views have helped scientists observe Earth across continents, through oceans, and gain a better understanding of ecological systems at multiple levels. In symposium 9, to be held at the Ecological Society of America Annual meeting, scientists will discuss current research practices involving remote sensing (use of satellites, airplanes, and other distance-related technologies).
Technology Michael Lefsky (Colorado State University) will open the symposium with a talk about the use of airborne and satellite-based laser technologies (lidar). Lidar instruments directly sense vertical structure by recording the “echo” from laser pulses reflecting off vegetation and ground surfaces.
Satellites provide synoptic views with the potential to make repeat observations. Yet the technology, according to Susan Ustin (University of California, Davis), is limited by today’s spatial and spectral resolutions and their fixed overpass schedules, often limiting the use of satellite data for ecological studies. In her presentation, Ustin will provide insight on the uses of and instruments available for aircraft observations. According to her, high fidelity imaging spectroscopy and small footprint lidar, are two new technologies that provide essential information needed to characterize landscape dynamics. She will discuss the types of landscapes that are measurable using those instruments and examine how ecosystem functions related to biogeochemical cycling and landscape dynamics can be quantified.
Gregory Asner (Carnegie Institution) will focus on recent progress in ecological and remote sensing science, and how this has opened up new research opportunities in regional studies.
Studies Many African countries have adopted national plans for biodiversity conservation and ecosystem management, but often lack basic information on the rates and extent of environmental change. According to Nadine Laporte (Woods Hole Research Center), space-based earth monitoring technologies can provide detailed analyses of the state of tropical ecosystems. Laporte will discuss two projects designed and adopted to conservation and forest management in the talk, “Remote sensing tools for conservation policy: INFORMS and PAWAR.” The Integrated Forest Monitoring System for Central Africa (INFORMS) is focused on Africa’s entire tropical forest region, while Protected Area Watch in the Albertine Riff (PAWAR) focuses on the greater Albertine ecosystem, which extends across 330,000 kilometers of six countries. Laporte will focus on management decisions as they relate to African tropical biodiversity and associated economic activities in these regions.
The migration of large mammals over large distances is a prominent yet threatened occurrence. Using remote sensing and landscape modeling, researchers can describe and predict major landscape changes that may affect these migrations. In “Landscape analysis and ungulate movement in the Greater Yellowstone Region,” Fred Watson (California Stare University, Monterey Bay) will describe research done on bison in Yellowstone National Park.
Future directions Based on the recent National Research Council report, “Earth Science and Applications from Space: National Imperative for the Next Decade and Beyond,” David Schimel’s (National Center for Atmospheric Research) talk will discuss the impacts of recommended space missions from this Decadal Survey.
“These new missions will revolutionize ecology from space, but will also challenge the theory, algorithms and models the community now uses to analyze space-based data,” says Schimel.
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05.12.2017 | Steinbeis-Europa-Zentrum
Jena Experiment: Loss of species destroys ecosystems
28.11.2017 | Technische Universität München
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications
Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
Physicists in the Laboratory for Attosecond Physics (run jointly by LMU Munich and the Max Planck Institute for Quantum Optics) have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms.
The most basic of all physical interactions in nature is that between light and matter. This interaction takes place in attosecond times (i.e. billionths of a...
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