Overview
Research conducted by Lund University in Sweden investigated the relationship between road verges, traffic intensity, and bumblebee populations. The study focused on assessing the role of roadside environments as potential food sources versus hazards for bumblebees, specifically examining the impact of heavy traffic.
Research Context
Road verges, characterized by their floral richness, are known to attract bumblebees. However, the study aimed to understand if the presence of heavy traffic in these areas could counteract the benefits of food availability by increasing risks to these insects.
Approach
The research team surveyed 60 road verges located in southern Sweden. To facilitate the study, specially trained dogs, capable of detecting bumblebee nests through scent, were utilized. The methodology involved comparing the number of deceased bumblebees with living bumblebees along these 60 verges. This comparison was conducted across areas experiencing varying intensities of traffic.
Findings
- Road verges that are rich in flowers attract bumblebees.
- These flower-rich road verges can pose a danger to bumblebees if the traffic intensity is high.
- The study's results indicate that road verges, particularly with heavy traffic, can be hazardous environments for insects that are foraging for food.
Research Source
Lund University