Abstract Detail



Reticulate evolution and biogeography in ferns and lycophytes - a colloquium honoring Dr. David Barrington

Suissa, Jacob [1].

Global Patterns of Fern Diversification.

Understanding global patterns of biodiversity and species richness are central themes in biology. Correlations with species richness both at an elevational and latitudinal gradient are well known in many organisms. At finer spatial scales we have been able to elucidate processes that lead to increased species richness and species diversification, namely the effects of rapid niche development through the recent and accelerated orogeny in areas like the Andes and the Tibetan Plateau. Here we aim to understand some of the global patterns of fern diversification. Using net diversification rates derived from both RevBayes and BAMM as well as occurrence data from GBIF and other databases we unveil areas of the earth that harbor the highest diversification rates found in the fern lineage. Similar to prior research on other lineages ranging from birds to angiosperms, we find that young mountain ranges with recent rapid orogeny harbor the highest rates of fern diversification. Additionally, we have highlighted other global hotspots that have not been previously recognized. These new insights in fern diversification and species distribution help understand some of the patterns observed in fern biogeography and species diversification.


1 - 1300 Centre St, Boston, MA, 02131, United States

Keywords:
none specified

Presentation Type: Colloquium Presentations
Number: 0011
Abstract ID:151
Candidate for Awards:George R. Cooley Award


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