INVESTIGADORES
MARTINEZ PASTUR Guillermo Jose
capítulos de libros
Título:
Improvement in conservation value of insect communities in South Patagonian forests managed with variable retention.
Autor/es:
MV LENCINAS; G MARTÍNEZ PASTUR; JM CELLINI; C BUSSO
Libro:
Frontiers in Biodiversity Studies
Editorial:
IK International Publishing House
Referencias:
Lugar: Bangalore; Año: 2012; p. 118 - 130
Resumen:
The sub-Antarctic biome of South America is the world’s southernmost forested ecosystem and one of the last 24 remaining pristine wilderness areas on the planet. Nonetheless, the region confronts various anthropogenic environmental impacts, such as the invasive North American beaver (Castor canadensis) and harvesting (shelterwood cuts and variable retention), particularly for stands of Nothofagus pumilio. The effect of both factors is apparent in both aquatic and terrestrial systems within the area of disturbance. To understand the influence of these disturbances on sub-Antarctic watersheds, we characterized physical habitat conditions (pH, dissolved oxygen, conductivity, temperature, stream size, distance to riparian forest, bank slope, substrate heterogeneity, benthic organic matter) and sampled invertebrate community structure (density, richness, diversity, evenness) and function (biomass, functional feeding group percent) in 19 streams located on Tierra del Fuego Island.