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# Tierra del Fuego food-web reconstruction highlighted coastal carrion subsidies
- URL: https://intelligence.wildlandseco.com/2026-11-03-tierra-del-fuego-food-web-reconstruction-highlighted-coastal-carrion-subsidies/
- Published: 2026-11-03T14:18:56.000Z
- Updated: 2026-11-03T14:18:56.000Z
- Description: An archaeological trait-based network model put guanaco and marine resources at the center of long-term trophic structure.
- Author: Benjamin Worlund
- Tags: Wildlife, Oceans, Methods, #ecological-intelligence, #brief-2026-11-03, #global-radar, #peer-reviewed, #geo-latin-america-caribbean

Evidence

Peer-reviewed

Geography

Northern Tierra del Fuego, Argentina

System

Coastal-steppe trophic networks; paleoecology

## WHAT THE EVIDENCE SAYS

Using zooarchaeological information from 50 spatial-temporal contexts between the late Pleistocene and late Holocene, researchers reconstructed probabilistic predator–prey connections in Tierra del Fuego. Models assigned central roles to guanaco and coastal carrion/food subsidies as predator and human diets shifted.

## WHY IT MATTERS / OUR READ

Terrestrial ecosystem function can depend on marine resource flows; reconstructed networks offer hypotheses for how coast and steppe were coupled over time.

## CAVEATS / UNCERTAINTY

Archaeological sampling and reconstructed interactions are model inferences, not observed prehistoric food webs or proof of ecological stability.

## SOURCE

Santiago et al. · Frontiers in Ecology and Evolution (2 Nov 2026)  
[View original evidence ↗](https://doi.org/10.3389/fevo.2026.1952606?ref=intelligence.wildlandseco.com)

From the Morning Brief · 2026-11-03

[Read the full Morning Brief →](https://intelligence.wildlandseco.com/morning-brief-2026-11-03/)