Integrating evolution into geographical ecology: a phylogenetic perspective on palm distributions and community composition across scales

TY - ABST

T1 - Integrating evolution into geographical ecology: a phylogenetic perspective on palm distributions and community composition across scales

AU - Eiserhardt, Wolf L.

AU - Svenning, J.-C.

AU - Kissling, W. Daniel

AU - Balslev, Henrik

N1 - Part of symposium on "Environmental context of evolution and speciation"

PY - 2011/9/19

Y1 - 2011/9/19

N2 - Species distributions, assemblage composition, and species richness depend on both current environment and the diversification of lineages in past environments. On broad scales, processes that constrain diversifying lineages to certain regions or environments are particularly important. Through species pool effects, those processes also affect local community composition and richness. In addition, evolution directly affects local communities directly via niche-based assembly. We studied these effects with palms (Arecaceae) as a model group, using a) a dataset including >340,000 palm individuals in 430 transects in the Western Amazon, b) a set of range maps for all American palms (550 spp.), and c) global country-level presence/ absence data of all (>2400) palm species. These data were analysed with novel phylogenetic community structure and turnover methods. Globally, the phylogenetic structure of palm assemblages reflects several biogeographic and evolutionary processes. In the Americas, both dispersal limitation and a phylogenetically conserved temperature niche have constrained the evolution of palm species ranges. Broad-scale processes also influenced the local phylogenetic structure of Amazonian palm communities, which mainly reflects the evolution of habitat preferences.

AB - Species distributions, assemblage composition, and species richness depend on both current environment and the diversification of lineages in past environments. On broad scales, processes that constrain diversifying lineages to certain regions or environments are particularly important. Through species pool effects, those processes also affect local community composition and richness. In addition, evolution directly affects local communities directly via niche-based assembly. We studied these effects with palms (Arecaceae) as a model group, using a) a dataset including >340,000 palm individuals in 430 transects in the Western Amazon, b) a set of range maps for all American palms (550 spp.), and c) global country-level presence/ absence data of all (>2400) palm species. These data were analysed with novel phylogenetic community structure and turnover methods. Globally, the phylogenetic structure of palm assemblages reflects several biogeographic and evolutionary processes. In the Americas, both dispersal limitation and a phylogenetically conserved temperature niche have constrained the evolution of palm species ranges. Broad-scale processes also influenced the local phylogenetic structure of Amazonian palm communities, which mainly reflects the evolution of habitat preferences.

M3 - Conference abstract for conference

T2 - Botanikertagung 2011 - Diversity makes the difference

Y2 - 18 September 2011 through 23 September 2011

ER -