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

  • 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 extinction rates decreased during global cooling. Pollination syndrome and fruit type, both biotic traits known to facilitate mutualisms, played an additional role in driving diversification. These abiotic and biotic factors resulted in one of the fastest radiations reported to date: the centropogonids, whose 550 species arose in the last 5 million yr. Our study represents a significant advance in our understanding of plant evolution in Andean cloud forests. It further highlights the power of combining phylogenetic and Earth science models to explore the interplay of geology, climate, and ecology in generating the world's biodiversity.
Metadaten
Author:Laura P. Lagomarsino, Fabien L. Condamine, Alexandre Antonelli, Andreas Mulch, Charles C. Davis
URN:urn:nbn:de:hebis:30:3-458920
DOI:https://doi.org/10.1111/nph.13920
ISSN:1469-8137
ISSN:0028-646X
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/26990796
Parent Title (English):The new phytologist
Publisher:Wiley-Blackwell
Place of publication:Oxford [u. a.]
Document Type:Article
Language:English
Year of Completion:2016
Date of first Publication:2016/03/14
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2018/03/13
Tag:Andes; Lobelioideae; Neotropics; biodiversity hotspot; climate change; diversification; pollination syndromes; rapid radiation
Volume:210
Issue:4
Page Number:13
First Page:1430
Last Page:1442
Note:
© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
HeBIS-PPN:432156836
Institutes:Geowissenschaften / Geographie / Geowissenschaften
Angeschlossene und kooperierende Institutionen / Senckenbergische Naturforschende Gesellschaft
Fachübergreifende Einrichtungen / Biodiversität und Klima Forschungszentrum (BiK-F)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 58 Pflanzen (Botanik) / 580 Pflanzen (Botanik)
Sammlungen:Universitätspublikationen
Sammlung Biologie / Sondersammelgebiets-Volltexte
Licence (German):License LogoCreative Commons - Namensnennung 4.0