Home » Trade-off between competition and facilitation defines gap colonisation in mountains

Trade-off between competition and facilitation defines gap colonisation in mountains

Coloniser survival within vegetation gaps at high elevations in mountains, showing a range from high survival (red) in gap edges to low survival (blue) in the centers.
Coloniser survival within vegetation gaps at high elevations in mountains, showing a range from high survival (red) in gap edges to low survival (blue) in the centers.

Environmental conditions within a disturbance event are often regarded as uniform. There is however large variation in conditions for plant colonisers within one disturbance event, drastically affecting coloniser survival on a scale of centimetres. In a new study published in AoB PLANTS, Lembrechts et al. provide a model that combines the effect of the surrounding vegetation (negative through competition and positive through facilitation) with environmental conditions along a mountain gradient. This model indicates that colonisers will be forced to grow closer to the gap edge when environmental conditions (e.g. freezing temperatures) get worse, ultimately leaving a substantial area in large gaps unsuitable for colonisation in facilitation-dominated systems. The model will help predict the distribution of plant invaders and the effect of climate warming on colonisation in mountains.

AoBPLANTS

AoB PLANTS is an open-access, online journal that publishes peer-reviewed articles on all aspects of environmental and evolutionary biology. Published by Oxford University Press, AoB PLANTS provides a fast-track pathway for publishing high-quality research, where papers are available online to anyone, anywhere free of charge. Reasons to publish in AoB PLANTS include double-blind peer review of manuscripts, rapid processing time and low open-access charges.

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