The paper describe TrophIE and show how it can reproduce ecological dynamics, share an open-source dataset generated by playing TrophIE and discuss the benefits and limitations of the game for the study of trophic interactions.

@methodsinecoevol.bsky.social

The approach offers a simple, computationally accessible and genuinely amusing way to explore the ramifications of predator–prey interactions and test otherwise data-deficient hypotheses.

It also offers immersive insights into predator–prey interactions, making it an engaging pedagogical tool.

We explored the data to assess whether the behavior of human players reproduced ecological dynamics expected in natural systems.

We found that: movements were driven by risk reward trade-offs, predators' use of linear features made them risky for prey, prey had risk-sensitive functional responses.

We designed and played a simple game (TrophIE), where biologged players impersonate predators and prey in a natural landscape augmented with refuge and resource patches.

Rules are simple: Prey players must acquire resources without being caught by predators. Predator players try to catch prey.

These behavioral shifts could impact predator-prey dynamics, as territoriality shape both predator density and the areas where they focus foraging efforts.

Non-territorial foxes avoided foraging and caching prey in areas with high encounter probability, likely to reduce cache theft

In contrast, territorial foxes were less affected by encounter risk and cached prey slightly more at the edges of their territory, suggesting they don't avoid interactions

Using GPS and accelerometry data, she found that territoriality varied among individuals. Some successfully excluded neighbors from parts of their home range, while others could not. This shaped how they behaved when at risk of encountering neighbors.

Hi from Laval University! I'd love to be added if there is still space!

Would be happy to join!