High mitochondrial DNA diversity and lack of population structure in a solitary cavity-nesting bee in an urban landscape

Human impacts are believed to be the main cause of the marked decline in bee populations around the world. The ongoing expansion of the urban landscape has created obstacles to the establishment of some bee species, including those that are important pollinators. However, Centris (Hemisiella) tarsata is frequently found in urban landscapes in South America and is considered a keystone species in pollination programmes. Despite the importance of...