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Wildfires Once Existed in Deserts, Following Discovery of Fire Records in Sand Dunes [Study]

Evidence of fire records under sand dunes dates to thousands of years ago. Click to read more. Wildfires are known for wreaking havoc in the world's forests, grasslands, shrublands, and other terrestrial landscapes that have plants that it uses as fuel to spread. ....

United States , Nicholas Patton , Desert Research Institute , Getty Images , Quaternary Researchon May , Cooloola Sand Mass , Curiosity Rover Discovers Dark Sand Dunes , Desert Research , Wildfires Blaze , Authorities Suspect , Desert Wildfire , Sire Records , Sand Dunes , Fire Regime , Desert Fires ,

"Canopy cover mediates the effects of a decadal increase in time since " by Michael J.M. Franklin, Richard E. Major et al.

Wildfires impact animal populations directly, and indirectly through alteration of forest habitats. Recovery of populations and habitat structure occurs over time since fire, but knowledge is lacking about the relative importance of these processes as drivers of the occurrence of birds in fire-prone forests. We aimed to determine the extent to which canopy cover mediates the effects of a decadal increase in time since fire on the richness and occurrence of canopy bird species. We established sites at either short (5 years) or mid-range (16 years) time since fire in montane dry sclerophyll forests of south-eastern Australia. Canopy cover estimates were derived from airborne LiDAR data. Birds were surveyed using acoustic recorders, with the resulting data analyzed using Bayesian mediation models to partition direct (population processes) and indirect (canopy cover) effects of time since fire on canopy birds. The predictive accuracy of models representing partial mediation (direct and ind ....

Bayesian Mediation Analysis , Allocephalon Fimbriatum , Cross Validation , Fire Regime , Habitat Structure ,