Tierra del Fuego

Implementing the monitoring breakdown structure: native lichens as biomonitors of element deposition in the southern Patagonian forest connected with the Puyehue volcano event in 2011-a 6-year survey (2006-2012)

This study aims to investigate the airborne elements' deposition by using native Usnea barbata lichens as biomonitors in the forested areas of Tierra del Fuego (TdF, southern Patagonia), an apparently pristine environment. The present study is linked to the volcanic eruption of the Puyehue-Cordón Caulle which started in north Patagonia in June 2011, which gives rise to long-distance transport of pollutants through the atmosphere at 1700 km from our sampling sites.

?13C and ?15N variations in terrestrial and marine foodwebs of Beagle Channel in the Holocene. Implications for human paleodietary reconstructions

In this article we evaluate the isotopic variability in ?13C and ?15N values of diets among maritime hunter-gatherers of the Beagle Channel (Southern Argentina). A system with two end members –marine and terrestrial resources– is not enough to describe populations with diversified subsistence strategies. Moreover, these marine hunter-gatherers are characterized as highly mobile groups whose foraging ranges comprised not only nearshore areas, but also offshore spaces.

© Università degli Studi di Roma "La Sapienza" - Piazzale Aldo Moro 5, 00185 Roma