Prior disturbance legacy effects on plant recovery post?high?severity wildfire
نویسندگان
چکیده
Large, high-severity wildfires are an important component of disturbance regimes around the world and can influence structure function forest ecosystems. Climatic changes anthropogenic disturbances have altered global patterns increased frequency worldwide. While recovery plant communities at different successional stages after fire is well known, prior stand age poorly understood. Despite this, high-intensity produce long-lasting legacy effects, which resistance resilience Here, we quantified history on in Mountain Ash Alpine forests south-eastern Australia wildfire. Specifically, controlling for age, compared abundance (percent cover) life forms reproductive strategies that were, time wildfire 2009, “young” (28–35 yr old previously logged), “mixed” (26, 70–83, >150 old), “mature” (70–83 “old-growth” (>150 old). We uncovered evidence early forests. found burnt 2009 had a higher ruderal graminoid species, but lower persistent, onsite seeders, including Acacia eucalypt relative to 2009. “Mature” aged also Acacia, eucalypt, shrub “old-growth forests” Our findings provide advanced were older when by wildfire, younger same Further, demonstrate environmental conditions communities. In period rapid, global, change, our study provides insights into post-wildfire with implications management. suggest predicted increases may consequences regeneration.
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ژورنال
عنوان ژورنال: Ecosphere
سال: 2021
ISSN: ['2150-8925']
DOI: https://doi.org/10.1002/ecs2.3480