In the Colón area (about 60 km from the city) lies the El Palmar National Park, a large reserve of Yatay palm trees (Syagrus yatay), informally known as Palmar de Colón.
Syagrus species are used as food plants by the larvae of some Lepidoptera species including Batrachedra nuciferae (recorded on S. coronae), Hypercompe cunigunda (feeds exclusively on S. romanzoffiana) and Paysandisia archon (recorded on S. romanzoffiana).
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coronata nuts are the favored food of Lear's Macaw, whose bill size and shape are particularly adapted to crack them.