Malarial parasites in West Indies

Researchers surveyed malarial parasites in West Indian birds, and found that parasite assemblages on islands that were connected 2,500 years ago due to low sea levels differed as much as assemblages on islands that were never connected; parasite assemblages on once-connected and unconnected islands also differed more than assemblages on islands sampled locally up to two decades apart, indicating millennial-scale change in the prevalence of parasite lineages followed by lineage replacement over longer time periods.

Article #17-02512: “Dynamics of avian haemosporidian assemblages through millennial time scales inferred from insular biotas of the West Indies,” by Leticia Soares, Steven Latta, and Robert E. Ricklefs.