Early diversification dynamics in a highly successful insular plant taxon are consistent with the general dynamic model of oceanic island biogeography

The general dynamic model (GDM) of oceanic island biogeography views oceanic islands predominantly as sinks rather than sources of dispersing lineages. To test this, we conducted a biogeographic analysis of a highly successful insular plant taxon, Cyrtandra and inferred directionality of dispersal and founder events throughout the four biogeographical units of the Indo-Australian Archipelago (IAA), namely Sunda, Wallacea, Philippines, and Sahul. Sunda was recovered as the major source area, followed by Wallacea, a system of oceanic islands. The relatively high number of events originating from Wallacea is attributed to its central location in the IAA and its complex geological history selecting for increased dispersibility. We also tested if diversification dynamics in Cyrtandra follow predictions of adaptive radiation, which is the dominant process as per the GDM. Diversification dynamics of dispersing lineages of Cyrtandra in the Southeast Asian grade showed early bursts followed by a..., , Software requirements: R, MrBayes and BEAST., # Data from: **Early diversification dynamics in a highly successful insular plant taxon are consistent with the general dynamic model of oceanic island biogeography**

Persistent Identifier: doi: (10.5061/dryad.pk0p2ngtf)

Dataset Contributors: Jay Edneil C. Olivar, Frank Hauenschild, Hannah J. Atkins, Gemma L.C. Bramley & Alexandra N. Muellner-Riehl

## Contact Information

Jay Edneil C. Olivar
Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, D-04103 Leipzig, Germany

Alexandra N. Muellner-Riehl
Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, D-04103 Leipzig, Germany
German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, D-04103 Leipzig, Germany

---

## Methodological Information

* Methods of data collection/generation: see manuscript for details

---

## Description of the data and file structure

## Data and ...