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Root traits explain different foraging strategies between resprouting life histories.
| Content Provider | CiteSeerX |
|---|---|
| Author | Paula, Susana Pausas, Juli G. |
| Abstract | Running headline: Root traits and resprouting life histories Abstract Drought and fire are prevalent disturbances in Mediterranean ecosystems. Plant species able to regrow after severe disturbances (i.e. resprouter life history) have higher allocation to roots and higher water potential during the dry season than coexisting non-resprouting species. However, seedlings of non-resprouters have higher survival rate after summer drought. We predict that, to counteract their shallow-rooting systems and to maximize seedling survival, non-resprouters have root traits that confer higher efficiency in soil resource acquisition than resprouters. We tested this prediction in seedlings of less than 1.5 months old. We select 13 coexisting woody species (including both resprouters and non-resprouters), grew them in common garden and measured the following root traits: length, surface, average diameter, root tissue density (RTD), specific root |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Life History Life History Abstract Drought Summer Drought Resprouter Life History Woody Specie Specific Root Survival Rate Dry Season Mediterranean Ecosystem Non-resprouting Specie Average Diameter Severe Disturbance Common Garden Shallow-rooting System Water Potential Prevalent Disturbance Following Root Trait Root Tissue Density Root Trait Soil Resource Acquisition |
| Content Type | Text |
