The abiotic and biotic drivers of rapid diversification in Andean bellflowers (Campanulaceae).

ABSTRACT: The tropical Andes of South America, the world's richest biodiversity hotspot, are home to many rapid radiations. While geological, climatic, and ecological processes collectively explain such radiations, their relative contributions are seldom examined within a single clade. We explore the contribution of these factors by applying a series of diversification models that incorporate mountain building, climate change, and trait evolution to the first dated phylogeny of Andean bellflowers (Campanulaceae: Lobelioideae). Our framework is novel for its direct incorporation of geological data on Andean uplift into a macroevolutionary model. We show that speciation and extinction are differentially influenced by abiotic factors: speciation rates rose concurrently with Andean elevation, while exti

SUBMITTER: Lagomarsino LP 

PROVIDER: S-EPMC4950005 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature