Culturally modified trees and forest structure at a Kawesqar ancient settlement at Rio Batchelor, western Patagonia

Indigenous land use occurring on temporal scales over centuries or millennia shapes forests in specific ways and influences the dynamics of forest ecosystems. It is challenging to study such land use, but analysis of "culturally modified trees" (CMTs) can give precise spatial and temporal information on past land use by indigenous people. The aim of this study was to increase our knowledge of indigenous use of land and resources in Nothofagus forests by identifying CMTs and analyzing the forest structure dynamics in an ancient Kawesqar settlement site in western Patagonia. Our results show that there are CMTs at Rio Batchelor and that the forest structure varies significantly within the site, indicating that Kawesqar people altered the forest by extracting various resources. We conclude that CMT studies have great potential in Nothofagus forests in southernmost America, but also face specific challenges due to environmental conditions and lack of corroborating historical information

Culturally modified trees and forest structure at a Kawésqar ancient settlement at Río Batchelor, western Patagonia

Ajuts: This study was funded by Magnus Bergvalls Stiftelse, Sweden; Marie Skodowska-Curie Research and Innovation Staff Exchange (RISE) Program (SuFoRun #691149); Gifford Hickey, from Spring Creek Conservation; and Laboratoire ESE, Université Paris-Saclay.Indigenous land use occurring on temporal scales over centuries or millennia shapes forests in specific ways and influences the dynamics of forest ecosystems. It is challenging to study such land use, but analysis of "culturally modified trees" (CMTs) can give precise spatial and temporal information on past land use by indigenous people. The aim of this study was to increase our knowledge of indigenous use of land and resources in Nothofagus forests by identifying CMTs and analyzing the forest structure dynamics in an ancient Kawésqar settlement site in western Patagonia. Our results show that there are CMTs at Río Batchelor and that the forest structure varies significantly within the site, indicating that Kawésqar people altered the forest by extracting various resources. We conclude that CMT studies have great potential in Nothofagus forests in southernmost America, but also face specific challenges due to environmental conditions and lack of corroborating historical information