Obsidian geochemistry, geoarchaeology, and lithic technology in northwestern Patagonia (Argentina)

Vegetation disturbance by fire affects plant reproductive phenology in a shrubland community in northwestern Patagonia, Argentina

Reproductive phenology is likely to vary spatially with environmental conditions that alter microclimate, in particular temperature. We hypothesized that within the same plant community type, environmental changes produced by recent burning would alter plant phenological patterns and temporal structure of the plant community. Specifically, we predicted accelerated flowering and fruiting dates i...

Afforestation causes changes in post-fire regeneration in native shrubland communities of northwestern Patagonia, Argentina

Question: What are the effects of fire in native shrubland communities and in pine plantations established in these shrublands? Location: Northern Patagonia, Argentina. Methods: We surveyed four sites in Chall–Huaco valley, located in northwest Patagonia. Each site was a vegetation mosaic composed of an unburned Pinus ponderosa plantation, a plantation burned in 1996, and an unburned matorral a...

Triatoma infestans Bugs in Southern Patagonia, Argentina

This work was funded by National Institutes of Health, National Institute of Allergy and Infectious Diseases (grant nos. AI070183 and AI30071); the Pacifi c Southwest Regional Center of Excellence (grant no. AI065359); the Department of Homeland Security Science and Technology Directorate (grant nos. NBCH2070001 and HSHQDC-08-C-00158); and the Cowden Endowment in Microbiology at Northern Arizon...

Cold-Adapted Yeasts from Patagonia Argentina

The Patagonian Andes possess a great variety of glaciers, large temperate ice masses, and glacially formed water bodies. Most of these environments are included in protected areas characterized by low anthropogenic impact and minimal atmospheric pollution. Studies on occurrence of psychrotolerant (cold-adapted) and psychrophilic yeasts in these natural environments have allowed the characteriza...

Carbon Storage in Cold Temperate Ecosystems in Southern Patagonia, Argentina