Fire resistance in a Caribbean dry forest: inferences from the allometry of bark thickness
نویسندگان
چکیده
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...
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15 صفحه اولBark 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...
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Trees may survive fire through persistence of above or below ground structures. Investment in bark aids in above-ground survival while investment in carbohydrate storage aids in recovery through resprouting and is especially important following above-ground tissue loss. We investigated bark allocation and carbohydrate investment in eight common oak (Quercus) species of Sky Island mountain range...
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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...
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ژورنال
عنوان ژورنال: Journal of Tropical Ecology
سال: 2014
ISSN: 0266-4674,1469-7831
DOI: 10.1017/s0266467413000904