منابع مشابه
Bark thickness and fire regime
1. Bark is a vital and very visible part of woody plants, yet only recently has bark characteristics started to be considered as key traits structuring communities and biomes. Bark thickness is very variable among woody plants, and I hypothesize that fire is a key factor selecting for a thick bark, and thus, at the global scale, a significant proportion of the variability in bark thickness is e...
متن کاملBark thickness and fire regime: another twist.
Bark is the outermost covering of stems in woody plants and plays a fundamental protective role. Recently I hypothesized that ‘at the global scale, a significant proportion of the variability in bark thickness is explained by the variability in fire regimes’, and specifically predicted that frequent low intensity fires select for thick bark (Pausas, 2015). In addition, I suggested that differen...
متن کاملAllometry of Constitutive Defense: A Model and a Comparative Test with Tree Bark and Fire Regime.
In a simulation model, the relative advantage of negative versus positive allometry of defense, that is, early versus delayed defensive investment, depends on the forms of the relationships between body size and growth, body size and mortality deterrence, and defense size and mortality deterrence. Positive allometry is favored by strongly sigmoidal growth, a strongly convex body-size/deterrence...
متن کاملAnthropogenic fire and bark thickness in coastal and island pine populations from Alta and Baja California
Fire is a common ecosystem process in many landscapes of western North America. Each landscape has a unique set of properties such as fuel arrangement, load, weather, ignitions, cultural history and topography that will influence fire behaviour and effects. These characteristics will have an impact on the probability that a particular area will be subjected to low-moderate intensity fires, stan...
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ژورنال
عنوان ژورنال: Functional Ecology
سال: 2014
ISSN: 0269-8463,1365-2435
DOI: 10.1111/1365-2435.12372