Any of the membranous air-filled extensions of the lungs of birds, which increase the efficiency of gaseous exchange in the lungs. — UBERON
Source attestations
Each upstream vocabulary's own account of this habitat. Assertion
counts are per-source units and are not comparable across sources —
GOLD counts organisms, BacDive strains, PREGO taxa.
What each upstream vocabulary says about this habitat
Source
Label / path
Assertions
Unit
GOLD
Host-associated > Birds > Respiratory system > Air sacs 2 GOLD ecosystem node ids share this path; first shown. See data/raw/gold_ecosystem_paths.tsv.
What a curator decided about this record, and why. A record built
from several source concepts can carry one decision per concept.
GROUND2026-08-16 · claude-opus-5
Grounded to UBERON:0009060 'air sac' (EXACT). Variant-match review (#12): the seeder grounds on exact labels only, so GOLD's slash and plural conventions hid a term that says exactly this. UBERON defines air sac as the membranous air-filled extensions of the lungs of birds, and the path is Birds > Respiratory system. Path: Host-associated > Birds > Respiratory system > Air sacs (source concept habitatmech:GOLD.1dec05f10e)
Provenance
Generated by scripts/seed_from_sources.py from the committed
inventories in data/raw/.
View the record.