Richness
moderate and falling for woodland specialists
Richness of all birds is not the same as specialist richness. Generalists can keep a list long while the assemblage simplifies.
assemblage · Cumberland Plain remnants
Reference: Mulgoa Nature Reserve as the less-fragmented comparison
Richness
moderate and falling for woodland specialists
Richness of all birds is not the same as specialist richness. Generalists can keep a list long while the assemblage simplifies.
Composition
shift toward Noisy Miner and urban-tolerant species
Composition change is the primary signal, not total count.
Abundance
relative detection frequency of small woodland birds down ~31%
Index, not density. Effort held roughly constant.
Occupancy
specialists contracting to larger remnants
Mulgoa retains more of the assemblage than Castlereagh or Prospect.
Persistence
Varied Sittella not recorded 2024–2026 at two former sites
Non-detection with stable effort is a signal, not proof of local extinction.
Functional diversity
bark-foraging and understorey insectivores thinning
Functional loss can precede species-list collapse.
Structural diversity
midstorey and fallen timber uneven; olive shading at edges
LandSentinel structure ≠ biological strata in use.
Native integrity
native canopy present; understorey increasingly transformed at edges
Native trees do not guarantee a native assemblage.
Invasion
African Olive expanding; Common Myna at urban interface
Invasive pressure is a dimension, not a single pest score.
Connectivity response
movement of specialists between remnants is poorly evidenced
Gap-crossing is inferred, not tracked.
Reproduction
insufficient evidence
Detection is not breeding. No nest-success dataset in this MVP.
Resilience
structural restoration has not yet produced specialist return
Recovery is a persistence test, not a planting count.
Coherence
Coherence here means whether organisms, functions, habitat, disturbance and flows still hold together. Increasing biomass or tree cover does not restore that. The woodland-bird assemblage is losing interior insectivore roles while edge-aggressive miners increase — a simplification, not a richness story.
Trajectory · declining
Constituent taxa
Related intelligence