Parallel evolution and cryptic diversification in a common and widespread Amazonian tree, Protium subserratum.

The lowland Amazon rainforest houses some of the greatest tree diversity on Earth. While the vast majority of these species are rare, a small number are common and widespread and thus considered to play a disproportionate role in many of the global ecosystem services provided by the Amazon. However, the extent to which dominant Amazonian tree species actually include multiple clades, each on their own unique evolutionary trajectory, is unknown.

A mixed-method analysis: Disaster preparedness of families with children with access and functional needs.

Introduction: The aim of this study is to evaluate challenges to disaster preparedness of families with children with access and functional needs (CAFN). CAFN are a particularly vulnerable population, with increased risk of morbidity and mortality in the event of an emergency. Families with CAFN require specialized preparedness plans and support from multidisciplinary teams; however, previous research has shown that they are not adequately prepared.

The contribution of multiple barriers to reproduction between edaphically divergent lineages in the Amazonian tree (Burseraceae).

Disentangling the strength and importance of barriers to reproduction that arise between diverging lineages is central to our understanding of species origin and maintenance. To date, the vast majority of studies investigating the importance of different barriers to reproduction in plants have focused on short-lived temperate taxa while studies of reproductive isolation in trees and tropical taxa are rare. Here, we systematically examine multiple barriers to reproduction in an Amazonian tree, (Burseraceae) with diverging lineages of soil specialist ecotypes.