Skip navigation
You are here: Home > NaturePlus > Science News > Science News > Tags > moss

Science News

1 Post tagged with the moss tag
0

Jairo Patiño, Department of Biology, Ecology and Evolution, Liege University


Friday 9 May 11:00


Sir Neil Chalmers seminar room, Darwin Centre LG16 (below Attenborough studio)

 


Oceanic island biotas are typically characterized by high levels of endemism and a suite of specific life-history traits known as island syndromes. Low levels of genetic diversity and limited dispersal capacities of island lineages have driven the view that oceanic islands are evolutionary dead-ends.

 

Here, we demonstrate the role of oceanic islands as dynamic platforms for the assembly of entire continental biotas in organisms with high dispersal capacities, using bryophyte species as a model. Based on an Approximate Bayesian Computation framework, we show that the patterns of genetic variation were consistently more similar with those simulated under a scenario of de novo foundation of continental populations from insular ancestors than with those expected if islands would represent a sink or a refugium of continental biodiversity.

 

The dominant pattern of continental colonization from islands reported here suggests that the Macaronesian archipelagos have played a key role as stepping-stones, transforming trans-continental migrants into new endemic species before they eventually ended their colonization road in a new continental environment.

 

For additional details on attending this or other seminars see http://www.nhm.ac.uk/research-curation/seminars-events/index.htm