Species

Western lowland gorilla

Quiet, close-range communication punctuated by rare high-intensity displays — a species where absence of vocalisation is itself informative.

Gorilla gorilla gorillaDo not approachcritically endangeredprimate-adapter

Wild species

  • • Maintain the minimum distance set by the park authority, typically 7–10 metres, and never longer than one hour of observation.
  • • If a silverback displays, crouch, look down and stay still. Do not run and do not photograph with flash.
  • • Do not visit if you have any respiratory illness.

Acoustic profile

What a recording device must capture.

Fundamental frequency

40–900 Hz

Meaningful spectrum

20 Hz – 8.0 kHz

Recommended sample rate

48.0 kHz

Individual profiles

Supported

Capture note

Contentment "belch vocalisations" are low and quiet. Chest-beating is percussive and broadband with an infrasonic component that consumer microphones capture only as a transient.

Signature signals

What an experienced observer looks for in this species.

  • Belch vocalisation

    audio

    Low, rumbling contentment call during feeding and rest.

  • Chest beat

    audio

    Broadband percussive display carrying size information.

  • Strut stance

    video

    Stiff-legged broadside posture preceding a display.

Behaviours

Categories the engine may report — and the ones it must never report for this species.

Supported

AlarmDefensive warningTerritorial behaviourSocial contactGroup coordinationParent–offspring communicationDominance displaySubmissionFearCuriosityFood-related behaviourPlay initiationRestPossible pain or discomfortInsufficient evidence

Excluded for this species

Separation distressHunting or prey focus

Excluded categories are removed before ranking, so they can never win on a superficial signal match.

Taxonomy

kingdom
Animalia
phylum
Chordata
class
Mammalia
order
Primates
family
Hominidae
genus
Gorilla
species
Gorilla gorilla gorilla

Body-language channels

Only these are weighed for this species.

Facial expressionGazeMouthPostureGaitPiloerection

Limitations

  • • Close calls are quiet and are frequently masked by forest ambience.
  • • Chest-beat rate encodes body size more than emotional state.

Species adapter

Adapter

primate-adapter@0.1.0

Provenance

Shared primate adapter; priors from published Gorilla close-call and display literature.