Regenerates the population and reruns the full pipeline.

Seeds

Seed for the coastline shape and environmental fields (D_h, P_h, R_h)

Seed for dolphin placement, survey effort, and sightings (fix landscape, vary population)

Population

Number of dolphins; only those with ≥ 4 sightings total are retained for analysis

Number of latent habitat clusters; each has a centroid in the 3D preference space (depth proxy, productivity, disturbance). Each dolphin draws its own preference vector from a Gaussian around its cluster's centroid.

Dispersion of each latent cluster in preference space; 0 = tight clusters (near-discrete, easy to separate), 0.9 = widely dispersed Gaussians with heavy cross-cluster overlap

Fraction of dolphins with strong habitat fidelity (guild affinity coefficient 10× vs 5× for generalists); specialists show lower habitat-type spread: their B* concentrates on a narrower slice of the habitat axes, independent of where those hexes sit in space

Transient visitors with no resident home range; mostly filtered out by the ≥ 4 sightings gate, but contribute to the raw sightings layer

Number of peaks in habitat space for generalists (specialists fixed at 1).

Habitat peak width for specialists (lower = sharper preference).

Habitat peak width for generalists.

Survey

Survey years; each year draws 60 independent sample points from the radial effort field, so more years increase both total detections and spatial coverage

Radial decay scale for survey effort; 1 = effort tightly clustered near port, 0 = effort spread across the full domain

Per-visit detection probability for a dolphin in a hex (scaled by λ and effort)

Analysis

Neighbours each dolphin retains in the kNN graph fed to Louvain community detection

Effort floor in B* = Y / max(E, E_min); prevents inflation in rarely-surveyed hexes

Louvain resolution γ; lower → fewer large communities, higher → more small ones

Domain

Spatial resolution; the arena stays the same size — smaller hexes = more cells and finer grain, larger = fewer cells and coarser grain (see MAUP)