An urban ecology proposal for a hypothetical project in Portland, Oregon focused on how the local genetic diversity of two native, vulnerable/declining bumblebee species - Obscure Bumblebee (Bombus caliginosus) & Yellow Bumblebee (Bombus fervidus) - could would be affected by the increase of bioswales, ‘hell/healthstrip’ & median planting conversions. The goal of the project would be to use urban-greening & intentional plantings to address habitat fragmentation - creating connectivity pathways between populations that have become isolated due to urbanization.

(Photo: Kara Keating-Stuart via xerces.org)