Please use this identifier to cite or link to this item:
Title: Environmental gradients and the evolution of successional habitat specialization: A test case with 14 Neotropical forest sites
Authors: Letcher, Susan G.
Lasky, Jesse R.
Chazdon, Robin L.
Norden, Natalia
Wright, Stuart Joseph
Meave, Jorge A.
Pérez-García, Eduardo A.
Muñoz, Rodrigo
Romero-Pérez, Eunice
Andrade, Ana C.S.
Andrade, José Luis
Balvanera, Patricia
Becknell, Justin M.
Bentos, Tony V.
Bhaskar, Radika
Bongers, Frans
Boukili, Vanessa K.S.
Brancalion, Pedro Henrique Santin
César, Ricardo Gomes
Clark, Deborah A.
Clark, David B.
Craven, Dylan
Defrancesco, Alexander
Dupuy, Juan Manuel
Finegan, Bryan
González-Jiménez, Eugenio
Hall, Jefferson Scott
Harms, Kyle E.
Hernández-Stefanoni, José Luis
Hietz, Peter
Kennard, Deborah K.
Killeen, Timothy J.
Laurance, Susan G.W.
Lebrija-Trejos, Edwin E.
Lohbeck, Madelon
Martínez-Ramos, Miguel
Massoca, Paulo E.S.
Mesquita, Rita de Cássia Guimarães
Mora, Francisco
Muscarella, Robert A.
Paz, Horacio
Pineda-García, Fernando
Powers, Jennifer Sarah
Quesada-Monge, Ruperto
Rodrigues, Ricardo Ribeiro
Sandor, Manette E.
Sanaphre-Villanueva, Lucía
Schüller, Elisabeth
Swenson, Nathan G.
Tauro, Alejandra
Uríarte, Ma?ia
Van Breugel, Michiel
Vargas-Ramírez, Orlando
Viani, Ricardo Augusto Gorne
Wendt, Amanda L.
Williamson, G. Bruce
Keywords: Adaptive Radiation
Community Structure
Environmental Gradient
Forest Ecosystem
Life History Trait
Neotropical Region
Pioneer Species
Precipitation (climatology)
Resource Availability
Tropical Forest
Issue Date: 2015
metadata.dc.publisher.journal: Journal of Ecology
metadata.dc.relation.ispartof: Volume 103, Número 5, Pags. 1276-1290
Abstract: Successional gradients are ubiquitous in nature, yet few studies have systematically examined the evolutionary origins of taxa that specialize at different successional stages. Here we quantify successional habitat specialization in Neotropical forest trees and evaluate its evolutionary lability along a precipitation gradient. Theoretically, successional habitat specialization should be more evolutionarily conserved in wet forests than in dry forests due to more extreme microenvironmental differentiation between early and late-successional stages in wet forest. We applied a robust multinomial classification model to samples of primary and secondary forest trees from 14 Neotropical lowland forest sites spanning a precipitation gradient from 788 to 4000 mm annual rainfall, identifying species that are old-growth specialists and secondary forest specialists in each site. We constructed phylogenies for the classified taxa at each site and for the entire set of classified taxa and tested whether successional habitat specialization is phylogenetically conserved. We further investigated differences in the functional traits of species specializing in secondary vs. old-growth forest along the precipitation gradient, expecting different trait associations with secondary forest specialists in wet vs. dry forests since water availability is more limiting in dry forests and light availability more limiting in wet forests. Successional habitat specialization is non-randomly distributed in the angiosperm phylogeny, with a tendency towards phylogenetic conservatism overall and a trend towards stronger conservatism in wet forests than in dry forests. However, the specialists come from all the major branches of the angiosperm phylogeny, and very few functional traits showed any consistent relationships with successional habitat specialization in either wet or dry forests. Synthesis. The niche conservatism evident in the habitat specialization of Neotropical trees suggests a role for radiation into different successional habitats in the evolution of species-rich genera, though the diversity of functional traits that lead to success in different successional habitats complicates analyses at the community scale. Examining the distribution of particular lineages with respect to successional gradients may provide more insight into the role of successional habitat specialization in the evolution of species-rich taxa. © 2015 British Ecological Society.
metadata.dc.identifier.doi: 10.1111/1365-2745.12435
Appears in Collections:Artigos

Files in This Item:
File Description SizeFormat 
artigo-inpa.pdf416 kBAdobe PDFThumbnail

This item is licensed under a Creative Commons License Creative Commons