A seven‐year study of the response of woodland birds to a large‐scale wildfire and the role of proximity to unburnt habitat

Austral Ecology - Tập 46 Số 7 - Trang 1138-1155 - 2021
Michael J. Murphy1, Hugh Jones2, Terry Koen2
1NSW National Parks and Wildlife Services, PO Box 952, Moama, New South Wales, 2731 Australia
2NSW Department of Planning Industry and Environment, Sydney, New South Wales, Australia

Tóm tắt

AbstractFire is a major ecological driver in many Australian ecosystems, and large‐scale wildfires can impact on faunal assemblages at a landscape scale. Monitoring the response of the avian community and individual bird species following a 92 039 ha wildfire in the Pilliga Forest, in temperate inland south‐eastern Australia, showed an initial decline in species richness and changes in community composition, followed by gradual recovery. Recovery was not complete by the end of the seven‐year study. Eighteen species (including Speckled Warbler Chthonicola sagittata and Eastern Yellow Robin Eopsaltria australis) were identified as likely to be fire sensitive and nine species (including Australian Magpie Cracticus tibicen and Red‐capped Robin Petroica goodenovii) as likely to respond positively to fire at the time scale of this study. Another 11 species (including Dusky Woodswallow Artamus cyanopterus and Jacky Winter Microeca fascinans) appeared to favour burnt areas close to the fire edge. Guild‐level patterns included an overall negative response to fire by insectivores, granivores/frugivores and declining woodland birds and a positive response by predators. The avian community recovered more quickly at burnt sites close to (within 2 km of) the fire edge compared to more remote sites more than 4 km from unburnt habitat, suggesting that proximity to unburnt areas (and therefore fire extent) is likely to be a key consideration in understanding the post‐fire recovery of birds.

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Austral Ecology

Tập 46 Số 7

1138-1155

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