Please use this identifier to cite or link to this item:
|Title:||Ant Mutualism Increases Long-Term Growth and Survival of a Common Amazonian Tree|
Donoso, David A.
Queenborough, Simon A.
|Keywords:||POBLACIONES ESTRUCTURADAS POR EDAD|
|Publisher:||The University of Chicago|
|Citation:||Báez, S., D. A. Donoso y et. al., 2016. Ant Mutualism Increases Long-Term Growth and Survival of a Common Amazonian Tree. The American Naturalist 188 (5): 1-9.|
|Series/Report no.:||The American Naturalist;188 (5)|
|Abstract:||How ecological context shapes mutualistic relationships remains poorly understood. We combined long-term tree census data with ant censuses in a permanent 25-ha Amazonian forest dynamics plot to evaluate the effect of the mutualistic ant Myrmelachista schumanni (Formicinae) on the growth and survival of the common Amazonian tree Duroia hirsuta (Rubiaceae), considering its interactions with tree growth, population structure, and habitat. We found that the mutualist ant more than doubled tree relative growth rates and increased odds of survival. However, host tree size and density of conspecific neighbors modified the effect of the ant. Smaller trees hosting the mutualist ant consistently grew faster when surrounded by higher densities of conspecifics, suggesting that the benefit to the tree outweighs any negative effects of high conspecific densities. Moreover, our findings suggest that the benefit afforded by the ant diminishes with plant age and also depends on the density of conspecific neighbors. We provide the first long-term large-scale evidence of how mutualism affects the population biology of an Amazonian tree species.|
|Appears in Collections:||Publicaciones (INSECTOS)|
Files in This Item:
|Baez et al 2016 Ant mutualism increases long-term growth Common Amazonian tree Am Nat.pdf||971,23 kB||Adobe PDF||View/Open|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.