An Alluring Roadway for Pollinators

 By: Anthony Vasquez


Image 1: A green corridor built on an overpass, above a highway, to allow for floral scents to be dispersed with wind to the otherside of highway (Rethinking Poverty, 2021;  Retrieved from https://www.rethinkingpoverty.org.uk/coronavirus/what-would-a-green-recovery-look-like-and-how-do-we-get-there/attachment/siginificance-of-wildlife-corridors/).

    Among conservation efforts in the 21st century, the most pivotal in combating dwindling biodiversity has to be green corridors. These are pathways made to connect species populations that might otherwise be isolated because of urban infrastructure like buildings or highways. In a study by Wang et al. (2021), these corridors are evaluated as a possible way to conserve pollinator diversity by floral scents in Hong Kong. This was done primarily by a simulation known as ENVI-met, which simulates parameters like infrastructure surfaces, wind flow, and particle dispersion near linear highways. Three scenarios were simulated with wind and no wind, to design corridors with different flowerbed locations that can disperse floral scents. Of these scenarios, the most optimum design was found when flowers are grown in an open corridor on an overpass because of reduced degradation of floral scents and effective floral scent dispersion across a highway (Wang et al., 2021). The finding is important as it provides a way to lessen the impact highways have on insects, like sweat bees that use floral scent cues to pollinate a flower, as well as reconnects flowering plants left isolated by newly constructed roadways. Such demonstrates the potential to maintain natural aesthetics for ecotourism as well as pollinator species, which are vital to maintain important cornerstones like honeybees that help in honey production. However, the tradeoff is not only funding to build overpasses with flora but also, construction near highways to build overpasses which can hinder species adapted to an existing environment.

Reference

Wang, Y., S. Jia, Z. Wang, Y. Chen, S. Mo, and N. N. Sze. 2021. Planning considerations of green corridors for the improvement of biodiversity resilience in suburban areas. Journal of Infrastructure Preservation and Resilience 2: 6.

Comments

  1. Luis CastilloOctober 28, 2022 at 6:44 PM

    Love the title Anthony! I find it interesting how this enables accessibility to pollinators across both sectors of the highway, yet the adaptability disruption tradeoff is definitely something to look into. Still, the aesthetics are marveling. Corridors like these should be implemented here in the states, but I'd say we're a long way from this being the norm. Great read!

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