Habitat amount is less important than habitat configuration for a threatened marsupial predator in naturally fragmented landscapes

Abstract Context The amount and configuration of habitat are independent but tightly linked landscape characteristics which often confounded in ecological studies. Differentiating the effects each characteristic is critical for conservation, because mechanisms by they influence populations distinct. While studies that have measured separately found former to be more important, a subset these suggest can vital species when low (10–30%). Objectives We aimed test on occupancy abundance an endangered marsupial predator, northern quoll ( Dasyurus hallucatus ), persists naturally fragmented rocky landscapes, (i.e. typically < 30%). Methods Northern quolls were surveyed across 22 study landscapes deliberately selected such uncorrelated. was estimated at using data collected from remote sensing cameras, combination n-mixture models. Results Spatial habitats important than predicting abundance; less abundant fragmented. In addition, favoured areas topographically rugged received rainfall. Conclusions Our results support hypothesis strongest low, underscore importance aggregated patches outcrops conservation. subdivision habitat, instance through construction mines or mining infrastructure (e.g. road, rail lines), likely negative impacts populations.