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. Log in to add this item to your schedule
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Keywords: none specified
Presentation Type: Colloquium Presentations Session: CO09, Reticulate evolution and biogeography in ferns and lycophytes - a colloquium honoring Dr. David Barrington Location: San Luis 2/Starr Pass Date: Tuesday, July 30th, 2019 Time: 4:15 PM Number: CO09011 Abstract ID:151 Candidate for Awards:George R. Cooley Award |