Abstract
Background Many species are expected to suffer a strong shift in geographic ranges due to climate changes in the next fifty years, depending on their ecological tolerance and current demographical parameters, which were in turn shaped by their evolutionary history. These shifts may also cause a change in genetic population structure and variability, because local extinctions or reduction in fitness are not expected to be random in geographical space. Here we used an ensemble forecast approach of Species Distribution Modeling (SDM hereafter, also known as niche modeling) to derive current and future geographic distribution of the Neotropical tree Dipteryx alata (“Baru” tree, Fabaceae). We then obtained a series of genetic parameters for the species after generating extinctions in areas of low future habitat suitability.
Highlights
Many species are expected to suffer a strong shift in geographic ranges due to climate changes in the fifty years, depending on their ecological tolerance and current demographical parameters, which were in turn shaped by their evolutionary history
Genetic parameters were used to estimate the total amount of polymorphism and genetic diversity currently found in D. alata
The ensemble forecasting approach reveals that D. alata will shift its geographic range and climatically suitable areas from Central towards Southeastern Brazil (Fig. 1)
Summary
Jose Alexandre Diniz-Filho1*, Rosane Collevatti, Lázaro Chaves, Thannya Soares, João Carlos Nabout, Thiago Fernando Rangel, Dayane Melo, Jacqueline Lima, Mariana Telles. From IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery Arraial d’Ajuda, Bahia, Brazil. From IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery Arraial d’Ajuda, Bahia, Brazil. 26 June - 2 July 2011
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