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Vegetation structural complexity, abundance of insectivorous birds and spider webs, and artificial larvae attacks and web prey items were all greater in the regrowth than in the seedling stands. Path analysis evidenced direct support for our modified enemies hypothesis for birds, the regrowth management with low disturbance levels after clearcutting promotes both predator abundance and predation events via increased vegetation structural complexity. However, for spiders the increase in web abundance and predation events was directly and positively associated with regrowth management, but there was no indirect link via vegetation structural complexity, suggesting other factors driven by forest management are important.
Manipulative experiments explicitly exploring the cause-and-effect relationship between predation rates and herbivory rates and consideration of the economic implications of the different approaches are required before changes to management are implemented. Our study agrees with the overarching paradigm in sustainable forest management that promotion of structural complexity will be beneficial to biodiversity, ecosystem function and resilience.
|Number of pages||9|
|Journal||Forest Ecology and Management|
|Early online date||19 Jan 2023|
|Publication status||Published - 19 Jan 2023|
- Artificial larvae
- Enemies hypothesis
- Insectivorous birds
- Predation events
- Spider webs
- Vegetation complexity
FingerprintDive into the research topics of 'Understorey structural complexity mediated by plantation management as a driver of predation events on potential eucalypt pests'. Together they form a unique fingerprint.
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Forest management strategies driving forest structural change and mediating prey-predator interactions - a potential tool for pest control?
OXBROUGH, A. & Filloy, J.
1/09/21 → 30/09/23