C. Mallea's research while affiliated with National University of Patagonia San Juan Bosco and other places
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Publications (2)
The geomorphology of a Fuegian Andes watershed colonized by the introduced species Castor canadensis has been analyzed. The main objective was to distinguish the physical conditions of the occupied streams. Geomorphological analysis and mapping techniques were applied; also, colonization monitoring surveys in the entire watershed was made through t...
Citations
... Pastur et al. (2006) The analysis of the genetic attributes of invasive species suggests that their adaptive success involves genetic traits that are determinant enough to ensure rapid expansion in a new environment (Nei 1975;Roughgarden 1979;Sakai et al. 2001). Of particular interest is the concept that biological invasions allow species to alter their own genetic pattern (Wright 1955;Carson 1987) and exhibit an extremely wide range of evolutionary patterns (Brown and Marshall 1986). In addition, recent awareness of the loss of genetic variability due to inbreeding and founder effects in invaders (Sakai et al. 2001) and their significance for the preservation of these species warrants an extensive study of the Tierra del Fuego beaver population. ...
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... Past research has established that the presence of non-native beavers changed the structure and composition of riparian forests (Anderson et al. 2006;Martínez Pastur et al. 2006), fish growth and abundance Arismendi et al. 2020), aquatic macroinvertebrate community structure (Anderson and Rosemond 2007), and periphyton community structure (Rodríguez et al. 2020), thus altering entire food webs of invaded streams (Anderson and Rosemond 2010 The largest influence of beavers on hydrogeomorphic processes is through dam construction (Westbrook et al. 2013). In Tierra del Fuego, invasive beavers colonize low-order (1-2 Strahler order) streams and rivers, and seasonally, secondary branches in large and steeper rivers that are too wide or dynamic for beavers to build dams across (Coronato et al. 2003;Westbrook et al. 2017). Beavers forage for food and construction on trees of the genus Nothofagus (N. ...
