Out of the Antilles: Fossil phylogenies support reverse colonization to South America
•
0 likes•255 views
Evolution 2016 (Austin, Texas) presentation on fossil phylogenetics and evolution.
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Viewers also liked (20)
Similar to Out of the Antilles: Fossil phylogenies support reverse colonization to South America
Similar to Out of the Antilles: Fossil phylogenies support reverse colonization to South America (20)
More from Liliana Davalos
More from Liliana Davalos (20)
Recently uploaded
Recently uploaded (20)
Out of the Antilles: Fossil phylogenies support reverse colonization to South America
- 1. Out of the Antilles: Fossil phylogenies support reverse colonization to South America Liliana M. Dávalos & Valéria Da C. Tavares Jonah Rothleder Fernando Balseiro Carlos A. Mancina
- 2. No island species on the continent I There are many more species on the continent Rojas et al. 2016 Syst. Biol.
- 3. No island species on the continent II Less diverse communities on islands and underused resources => Islands easier to colonize Photo by Carlos Mancina
- 4. No island species on the continent III More diverse communities on continent select for increased competitive ability Photo by Jon Flanders
- 5. Reverse colonization exists Filardi & Moyle 2007 Nature
- 6. Short-faced bats! Photo by Jon FlandersPhoto by Jon Flanders
- 7. Not for these bats Multi-locus phylogeny fails to support island origin Rojas et al. 2016 Syst. Biol.
- 8. Key fossil is missing in phylogenies Drawing by Adrian Tejedor
- 9. Analyses • Data • Multi-locus data (7 nuclear, 3 mt) • Morphological data • Tip dating • All extinct Quaternary bats in clade and sister • Independent gamma rates • BioGeoBEARS • DEC+J model (best-fit) • Test ancestral constraint
- 10. Sphaeronycteris Ariteus Ardops Pygoderma Stenoderma Ametrida Phyllops falcatus † Cubanycteris silvai Centurio † Phyllops silvai Artibeus (Artibeus) † Phyllops vetus Million years before present 0.05.010.015.020.025.0 Posterior probability 1.00 0.48 Oligocene Miocene Pliocene Short-faced bats Stenodermatina Cubanycteris is a Short- faced bat Sister to extant lineages
- 11. 12 10 M Shor Sten Biogeographic analyses Color = area
- 12. Figure 2 Ametrida Sphaeronycteris Centurio Pygoderma Ardops Ariteus Phyllops † Phyllops silvai † Phyllops vetus Stenoderma † Cubanycteris silvai Artibeus (Artibeus) 12 10 8 6 4 2 0 Million years before present Miocene Pliocene Short-faced bats Stenodermatina Reverse colonization is optimal Ancestral area = Antilles
- 13. Ametrida centurio Sphaeronycteris toxophyllum Centurio senex Pygoderma bilabiatum Ardops nichollsi Ariteus flavescens Phyllops falcatus Phyllops silvai Phyllops vetus Stenoderma rufum Cubanycteris Artibeus amplus Artibeus planirostris Artibeus schwartzi Artibeus obscurus Artibeus jamaicensis Artibeus fimbriatus 8 6 4 2 0 Mainland origin is rejected χ2 1 = 3.58, P = 0.0352
- 14. Short-faced bats bite harder through higher, distinctive mechanical advantage Dumont et al. 2012 Proc. Royal Soc. B Dumont et al. 2014 Evolution
- 15. 0.5 0.6 0.7 0.8 0.9 0.60.81.01.21.41.6 Unilateral Molar Biting Palate Width / Skull Width PalateLength/SkullWidth 0.5 0.6 0.7 0.8 0.60.81.01.21.41.6 Bilateral Molar Biting Palate Width / Skull Width PalateLength/SkullWidth 30 12025 Low MA 30 152025 Low MA High MA Short-faced bats bite harder through higher, distinctive mechanical advantage Dumont et al. 2014 Evolution Mancina & Garcia 2005 Carib. J. Sci. ? High Low
- 16. Thanks!