Infoblock · public evidence graph · corvid

Crow scolding of a known dangerous-human mask DOUBLED and spread at least 1.2 km over 5 years, with LINEAR (non-saturating) growth — a saturating/plateau model was statistically rejected.

✓ VERIFIED

Grade E1 · state: verified · id: IB-corvid-spread-linear

Quantities: >=1.2 km spread over 5 yr; scolding roughly doubled; linear fit Y = 22.3 + 1.0X, p = 0.0005; plateau model rejected

Primary source

Cornell, Marzluff & Pecoraro 2012, Proc. R. Soc. B

Edges (outgoing)

• relates → In crows, mobbing is a self-reinforcing recruitment LOOP: 82% of scold — recruitment is the local loop that drives the linear spread
• relates → SOCIAL transmission (imitating others) homogenizes cultural material t — cross-domain: population-level social transmission dynamics

Incoming edges (what points here)

• A single ~5-minute trapping event teaches wild American crows a specif — relates → this (the same acquired memory then propagates through the population)
• SOCIAL transmission (imitating others) homogenizes cultural material t — relates → this (cross-domain: population-level social transmission dynamics)