Abstract Detail
The flora of Madagascar: uncovering mechanisms for diversification Hong-Wa, Cynthia [1]. Diversification of the speciose Noronhia: what’s behind it? Noronhia is the largest and most ubiquitous genus of Oleaceae in Madagascar. It is found in diverse habitats and represents a common element of different vegetation types on the island. Its highest diversity is in the northern part where mountainous regions seem to have played a role in generating species. However, no single mechanism can explain by itself the diversification of Noronhia, which likely happened rapidly in the last 10-15 million years. The spatial heterogeneity created by intricate landscapes also accounts for the pattern of microendemism found in this genus. While the percentage of microendemics is relatively high, a pattern of sympatry is also common among species of Noronhia and may be underlain by both biological and physical factors. Log in to add this item to your schedule
1 - Delaware State University, Department Of Agriculture & Natural Resources, 1200 N. Dupont Hwy, Claude E. Phillips Herbarium, Dover, DE, 19901, United States
Keywords: diversification Madagascar microendemism Noronhia species diversity sympatry.
Presentation Type: Colloquium Presentations Session: C08, The flora of Madagascar: uncovering mechanisms for diversification Location: 101/Mayo Civic Center Date: Tuesday, July 24th, 2018 Time: 2:45 PM Number: C08006 Abstract ID:467 Candidate for Awards:None |