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How rapidly do invasive birch forest geometrids recruit larval parasitoids? Insights from comparison with a sympatric native geometrid
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
Two related issues in studies of biological invasions are how quickly the enemy complexes of invasive species become as species-rich and efficient as those of native species and how important enemy release is for the establishment and spread of invaders. We addressed these issues for the geometrid moths Operophtera brumata and Agriopis aurantiaria, who invaded the coastal mountain birch forest ...
Outbreaks by canopy-feeding geometrid moth cause state-dependent shifts in understorey plant communities
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
The increased spread of insect outbreaks is
among the most severe impacts of climate warming predicted
for northern boreal forest ecosystems. Compound
disturbances by insect herbivores can cause sharp transitions
between vegetation states with implications for ecosystem
productivity and climate feedbacks. By analysing
vegetation plots prior to and immediately after a severe and
widespread ...