2003 Annual Science Report
Astrobiology Roadmap Objective 6.1 Reports Reporting | JUL 2002 – JUN 2003
Roadmap Objective 6.1—Environmental changes and the cycling of elements by the biota, communities, and ecosystems
Project Reports
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Isotopic and Molecular Approaches to Microbial Ecology and Biogeochemistry (The Evolution of Organic Matter)
ROADMAP OBJECTIVES: 3.2 4.1 4.2 5.1 5.2 5.3 6.1 7.1 7.2 -
First-Stage Biofilm Formation Under Extreme Conditions in Ice
ROADMAP OBJECTIVES: 5.1 5.3 6.1 6.2 7.2 -
Celestial Influences on Planetary Environments
ROADMAP OBJECTIVES: 1.1 2.1 2.2 4.3 6.1 -
The Planetary Context of Biological Evolution: Subproject: Permo-Triassic Mass Extinction and Its Consequences
ROADMAP OBJECTIVES: 1.1 4.2 4.3 6.1 -
Indigenous Bacteria of Arctic and Antarctic Permafrost
ROADMAP OBJECTIVES: 5.1 5.3 6.1 -
Evolution in Microbe-Based Ecosystems: Desert Springs as Analogues for the Early Development and Stabilization of Ecological Systems
ROADMAP OBJECTIVES: 4.1 5.1 5.2 5.3 6.1 7.1 -
Evolution of Atmospheric O2, Climate, and Biosphere – K. Freeman
ROADMAP OBJECTIVES: 4.1 4.2 5.2 6.1 7.1 -
Biogeochemistry of Earth’s Greenhouse Leading to the Rise of Oxygen
ROADMAP OBJECTIVES: 1.1 1.2 3.1 4.1 6.1 7.1 7.2 -
Molecular Survey of Microbial Diversity in Hypersaline Ecosystems, Ecogenomics
ROADMAP OBJECTIVES: 3.2 3.4 4.1 4.2 5.1 5.2 5.3 6.1 7.1 7.2 -
The Planetary Context of Biological Evolution Subproject: The Proterozoic Oxidiation of the Earth’s Surface
ROADMAP OBJECTIVES: 1.1 4.1 4.2 5.3 6.1 -
Fe Isotope Biosignatures
The field of Fe isotope geochemistry, which the UW-Madison group has been largely responsible for developing, has matured greatly in the last year.
ROADMAP OBJECTIVES: 2.1 4.1 6.1 7.1 7.2 -
Evolution of Atmospheric O2, Climate and the Terrestrial Biosphere – Capo
ROADMAP OBJECTIVES: 4.1 6.1 -
Rapid Rates of Change
A map of advanced very-high-resolution radiometer — normalized difference vegetation index (AVHRR-NDVI) was produced for the subtropical and higher latitude growing season of South America (Oct-Jan, when El NiƱo Southern Oscillation (ENSO) effects are more intense) on monthly data from 1981 through 2000.
ROADMAP OBJECTIVES: 6.1 -
Early Microbial Ecosystems
ROADMAP OBJECTIVES: 4.1 5.2 5.3 6.1 7.1 7.2 -
Ecological Genomics
ROADMAP OBJECTIVES: 5.1 5.2 5.3 6.1 -
Evolution of Atmospheric O2, Climate, and the Terrestrial Biosphere – Stewart
ROADMAP OBJECTIVES: 2.1 4.1 6.1 -
Theoretical Studies of Hydrothermal Synthesis Reactions
ROADMAP OBJECTIVES: 2.2 3.1 3.2 4.2 5.1 5.3 6.1 -
Fractionation of Transition Metal Isotopes
ROADMAP OBJECTIVES: 2.1 4.1 6.1 7.1 -
The Virtual Planetary Laboratory – the Life Modules
ROADMAP OBJECTIVES: 1.1 4.1 5.3 6.1 7.2 -
Mineralogical Biosignatures
ROADMAP OBJECTIVES: 5.1 5.2 6.1 7.1 -
Evolution of Atmospheric O2, Climate, and Biosphere – Ohmoto
ROADMAP OBJECTIVES: 1.1 2.1 4.1 4.3 5.2 5.3 6.1 7.1 7.2 -
Micro*scope (http://www.mbl.edu/microscope) – A Web-Based Tool for Microbial Diversity Research
micro*scope (http://www.mbl.edu/microscope) is an innovative biodiversity bioinformatics web site that greatly improves access to information about microbes
ROADMAP OBJECTIVES: 4.1 4.2 5.2 6.1 6.2 -
Geobiology and Geochemistry of Early Earth
ROADMAP OBJECTIVES: 4.1 6.1 -
Isotopic and Molecular Tracers of Life
Task 1. Molecular Spectroscopic Investigations into Ancient Biochemistry (Cody, Fogel, Hazen)
ROADMAP OBJECTIVES: 3.2 4.1 6.1 7.1 7.2 -
Terrestrial Analogs and Martian Meteorites
ROADMAP OBJECTIVES: 2.1 2.2 6.1 7.1 -
Causes and Consequences of the Diversification and Tetinction of Metazoans: Neoproterozoic Variations – Arthur
ROADMAP OBJECTIVES: 4.1 5.2 5.3 6.1 -
Biological Studies of Hydrothermal Systems
Task 1. Field Studies and Laboratory Characterization of Hydrothermal Vent Microbes (Baross)
ROADMAP OBJECTIVES: 4.1 4.2 5.1 5.3 6.1 7.1 -
Organic Molecules as Biosignatures
ROADMAP OBJECTIVES: 2.1 2.2 5.2 5.3 6.1 7.1 -
Evolution of Biocomplexity From an Ancient Autotrophic Lineage
ROADMAP OBJECTIVES: 3.2 3.3 4.1 4.2 5.1 5.3 6.1 -
Organic Synthesis at High Temperature
ROADMAP OBJECTIVES: 3.1 3.2 6.1 -
Ecosystem to Biosphere Modeling
We have developed a simulation model called MBGC (Microbial BioGeoChemistry) to infer effects of major environmental controllers on microbial community structure and function (Decker and Potter, 2002).
ROADMAP OBJECTIVES: 4.1 5.3 6.1 7.2 -
Impacts and the Origin, Distribution, and Evolution of Life
ROADMAP OBJECTIVES: 4.1 4.3 6.1 -
Magnetic Biosignatures
ROADMAP OBJECTIVES: 1.1 2.1 3.1 3.3 4.1 4.2 4.3 5.1 6.1 7.1 -
Causes of Mass Extinction: Isotopic and Paleontological Constraints
ROADMAP OBJECTIVES: 4.2 4.3 6.1 -
Symbiosis and the Origin of Multicellularity in Photosynthetic Organisms
ROADMAP OBJECTIVES: 4.2 5.1 5.2 6.1 -
Enzymes of Ancient Metabolic Pathways
ROADMAP OBJECTIVES: 3.3 4.1 5.1 5.2 5.3 6.1 6.2 -
Stable Isotope Biogeochemistry
ROADMAP OBJECTIVES: 4.1 6.1 7.1 7.2 -
Isolation of Psychrophilic Microorganisms
ROADMAP OBJECTIVES: 3.4 4.2 5.1 5.2 5.3 6.1 6.2 -
Microbial Mat Communities
ROADMAP OBJECTIVES: 3.2 4.1 4.2 5.1 5.2 5.3 6.1 -
Microbe-Mineral Interactions
ROADMAP OBJECTIVES: 4.1 5.3 6.1 7.1 -
Geopulse
ROADMAP OBJECTIVES: 4.1 5.2 5.3 6.1 7.2 -
Evolution of Atmospheric O2, Climate, and Biosphere – Kump
Ellen Herman (MS Student) has received some support from the Pennsylvania State Astrobiology Research Center (PSARC) to develop a numerical model of the microbial mat
ROADMAP OBJECTIVES: 4.1 4.2 4.3 5.2 6.1