Overlap between a species' range and federal Protected areas

Given a species' occurrence points and (optionally) its EOO and AOO, plus a UC layer from protected_areas(), computes how much of the range is legally protected: the share of occurrences inside UCs, the percentage/area of the EOO and AOO that fall within UCs, and the list of UCs touched.

Usage

summarise_protected(points, pa, eoo = NULL, aoo = NULL)

Arguments

points

An sf of POINT geometries (one species).

pa

A UC sf from protected_areas() (standardised columns).

eoo, aoo

The eoo/aoo sublists produced by assess_species() (or calc_eoo()/calc_aoo()). Either may be NULL.

Value

A list: n_occ, n_occ_in, occ_pct; eoo_pct, eoo_km2; aoo_pct, aoo_km2, aoo_cells_in; n_uc; list (per-UC data.frame) and layer (the UC sf).

Details

Percentages are computed on the species' equal-area projection so ratios are exact; the reported eoo_km2/aoo_km2 inside UCs are derived from the headline EOO/AOO so they stay consistent with assess_species(). The AOO overlap follows the grid nature of the metric: an occupied 2-km cell counts as protected when it intersects any UC.