Journal
SCIENTIFIC REPORTS
Volume 12, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-022-16982-x
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Funding
- Liddell Coal Operations Pty Limited
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This study demonstrates that fragmented forest landscapes can still support relatively high densities of quolls, highlighting the importance of preserving these fragmented habitats for the conservation of endangered quoll populations.
Native predators are increasingly exposed to habitat loss and fragmentation globally. When developing conservation and management strategies, it is important to determine whether fragmented landscapes can still support similar predator densities to intact areas, and thereby constitute important habitat for these species. The spotted-tailed quoll (Dasyurus maculatus) is an endangered Australian mesopredator that is often considered to be forest-dependent. While quolls are known to occur in some fragmented forest landscapes, it is unclear whether these areas represent sub-optimal habitat where quolls merely persist, or whether quolls can still occur at densities similar to those observed in intact forest landscapes. We used camera traps to detect quolls in both a fragmented and intact forested site, over three years. We used each quoll's unique pelage pattern to identify individual quolls and estimate population density at each site. We were able to assign more than 94% of quoll image sequences across both sites to identify 173 individuals during the study. Density estimates of 0.13-0.66 quolls per km(2) at the fragmented site were comparable to estimates of 0.28-0.48 quolls per km(2) at the intact site. Our results highlight the importance of retaining and protecting forest fragments for the conservation of endangered quoll populations.
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