Spatial Hex Lab — Eco‑evolutionary Spread Simulator

Run controls

Maximum steps

Playback speed (steps/s)

Advanced interaction coefficients

β_N self density feedback

β_φ trait → demography coupling

γ_N neighbor abundance coupling

γ_φ trait alignment with neighbors

δ_N density → trait coupling

δ_φ random trait drift

Scenario presets

Landscape setup

Grid radius

Barrier probability

Landscape mode

Initial patch

Initial abundance

Initial trait mean φ₀

Random seed

Demography and dispersal

Baseline carrying capacity

Intrinsic birth rate

Intrinsic death rate

Dispersal fraction

Minimum colonists / establishment threshold

Newly colonized cells must reach this abundance before they persist. The binary occupancy layer and occupancy statistics use the same threshold.

Network + space coupling

Blend short-range hex diffusion with long-range movement or contact links.

Jump dispersal fraction

Mean long-range degree

Hub targeting bias

Contact coupling strength

Evolution and environment

Mutation noise

Adaptive tracking

Selection against mismatch

Optimum shift per step

Stochastic disturbance

Patch disturbance probability

Disturbance intensity

Environmental noise

Step0

Initial state

Total abundance0

Across all occupied patches

Occupied cells0

Fraction of available habitat

Front radius0

Maximum occupied hex distance

Mean trait φ0

Population‑weighted

Adaptation debt0

Mean |φ − θ|

Trait diversity0

Shannon‑normalized

Patchiness0

Occupied‑neighbor edge fraction

high

Idle

Demography and spread

Evolutionary tracking

Trait distribution

Radial profile

Fluxes

Coupled network diagnostics

Coupling timeline

Degree distribution

Edge span and flow

Hub activity