DOI: 10.1016/j.scitotenv.2020.137437
论文题名: Adaptive flammability syndromes in thermo-Mediterranean vegetation, captured by alternative resource-use strategies
作者: Michelaki C. ; Fyllas N.M. ; Galanidis A. ; Aloupi M. ; Evangelou E. ; Arianoutsou M. ; Dimitrakopoulos P.G.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 718 语种: 英语
英文关键词: Adaptive strategies
; Fire regime
; Flammability
; Leaf functional traits
; Resprouters
; Seeders
Scopus关键词: Cell proliferation
; Commerce
; Digital storage
; Ecology
; Economic and social effects
; Fires
; Resource allocation
; Sustainable development
; Vegetation
; Adaptive strategy
; Fire regimes
; Functional traits
; Resprouters
; Seeders
; Flammability
; adaptive management
; climatology
; leaf
; Mediterranean environment
; resource allocation
; resource use
; resprouting
; vegetation
; wildfire
; article
; economics
; ecosystem
; flammability
; heat
; human
; plant leaf
; quantitative analysis
; reproduction
; resource allocation
; soil
; vegetation
; Mediterranean Region
英文摘要: Fire affects and is affected by leaf functional traits indicative of resource allocation trade-offs. Global change drivers constrain both the resource-use strategies and flammability of coexisting species. However, small attention has been given in identifying links among flammability and plant economics. Ambiguity comes from the fact that flammability is a multidimensional trait. Different flammability attributes (i.e. ignitibility, sustainability, combustibility and consumability) have been used to classify species, but no widely-accepted relationships exist between attributes. We hypothesised that flammability is a spectrum (defined by its four attributes) and the alternative flammability syndromes of coexisting species can be captured by their resource-use strategies. Furthermore, we argue that flammability syndromes are adaptive strategies that ensure persistence in the post-fire community. We conducted a large-scale study to estimate all flammability attributes on leaves from nine, dominant, thermo-Mediterranean species with alternative resource-use and fire-response strategies across a wide environmental and geographic gradient. We assessed the interdependence among attributes, and their variation across ecological scales (genus, species, individual, site and region). Furthermore, we collected 10 leaf functional traits, conducted a soil study and extracted long-term climatological data to quantify their effect on flammability attributes. We found that leaf flammability in thermo-Mediterranean vegetation is a continuous two-dimensional spectrum. The first dimension, driven by leaf shape and size, represents heat release rate (combustibility vs. sustainability), while the second, controlled by leaf economics, presents ignition delay and total heat release (i.e. consumability). Alternative flammability syndromes can increase fitness in fire-prone communities by offering qualitative differences in survival or reproduction. Trade-offs and constraints that control the distribution of resource-use strategies across environmental gradients appeared to drive leaf flammability syndromes as well. Tying the flammability spectrum with resource allocation trade-offs on a global scale can help us predict future ecosystem properties and fire regimes and illustrate evolutionary constraints on flammability. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158190
Appears in Collections: 气候变化与战略
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作者单位: Biodiversity Conservation Laboratory, Department of Environment, University of the Aegean, Mytilene, Lesbos 81100, Greece; Water and Air Quality Laboratory, Department of Environment, University of the Aegean, Mytilene, Lesbos 81100, Greece; Institute of Industrial and Forage Crops, Larisa, 41335, Greece; Department of Ecology and Systematics, Faculty of Biology, National and Kapodistrian University of Athens15784, Greece
Recommended Citation:
Michelaki C.,Fyllas N.M.,Galanidis A.,et al. Adaptive flammability syndromes in thermo-Mediterranean vegetation, captured by alternative resource-use strategies[J]. Science of the Total Environment,2020-01-01,718