Large-scale phylogeny of chameleons suggests African origins and Eocene diversification

02 April 2013 | News story
2 CommentairesWrite a comment

New data based on >90% of described chameleon taxa reveals African origin!

 Chameleons are an excellent example of how organisms can be distributed across the globe through oceanic dispersal because they are primarily found in Africa and Madagascar, but their age post-dates the last contact between these two landmasses. Using a genetic analysis including 90% of all chameleons, we show that the family originated in Africa, with two separate oceanic dispersals to Madagascar during the Paleocene (65 million years ago) and the Oligocene (48 million years ago), when prevailing oceanic currents promoted eastward dispersal. Thus, even small organisms like chameleons can populate the globe through long distance dispersal over formidable barriers.

For more information, read the full article here.


Commentaires

2 Commentaires
1 Jeremy A. Rich UC Davis Alumni
This is extremely interesting. I'm keen to read more studies about the evolution of Madagascar and African chameleon species.
April 29, 2013 - 03:14
2 Jeremy A. Rich UC Davis Alumni
This is extremely interesting. I'm keen to read more studies about the evolution of Madagascar and African chameleon species.
April 29, 2013 - 03:13
Commentaires
  • 1-2
  • 2
Write a comment

600 CHARACTERS LEFT

captcha