Keywords
Patagonia
Geographical distribution
local ecological knowledge
ecological interactions
How to Cite
Abstract
The American mink (Neogale vison) has expanded throughout the sub-Antarctic channels and fjords, yet its presence and ecological background in the remote western channels remain poorly documented. This study reports 25 new mink records from this area, obtained through direct observations during archaeological surveys and from opportunistic information provided by artisanal fishers, including photographs and videos collected between 2022 and 2024. These findings fill information gaps in sectors previously classified as lacking data and suggest a recent colonization, according to local fishers’ accounts. Opportunistic behaviors were recorded, such as mink entering fishing vessels in search of bait, as well as the unusual presence of white individuals. Fishers also reported anecdotal observations of possible mink predation by the striated caracara (Phalcoboenus australis). Confirmation of the mink’s westward expansion poses significant challenges for conservation strategies. We discuss implications for seabird colonies and for coexistence with native mustelids, highlighting critical gaps regarding interactions with the endangered marine otter (Lontra felina). We recommend strengthening monitoring in protected areas, integrating community-based observations, reinforcing institutional logistical efforts, and fostering control measures to mitigate impacts on sub-Antarctic coastal ecosystems.
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