While wild pollinators play a key role in global food production, their assessment is currently missing from the most commonly used environmental impact assessment method, Life Cycle Assessment (LCA). This is mainly due to constraints in data availability and compatibility with LCA inventories. To target this gap, relative pollinator abundance estimates were obtained with the use of a Delphi assessment, during which 25 experts, covering 16 nationalities and 45 countries of expertise, provided scores for low, typical, and high expected abundance associated with 24 land use categories. Based on these estimates, this study presents a set of globally generic characterization factors (CFs) that allows translating land use into relative impacts to wild pollinator abundance. The associated uncertainty of the CFs is presented along with an illustrative case to demonstrate the applicability in LCA studies. The CFs based on estimates that reached consensus during the Delphi assessment are recommended as readily applicable and allow key differences among land use types to be distinguished. The resulting CFs are proposed as the first step for incorporating pollinator impacts in LCA studies, exemplifying the use of expert elicitation methods as a useful tool to fill data gaps that constrain the characterization of key environmental impacts.
Bibliographical noteFunding Information:
E.M.A. was funded by the National Council for Science and Technology of Mexico (CONACyT) in the form of an educational and scientific scholarship for graduate studies abroad. B.A.W.’s contribution was supported by the NERC consortium award “Restoring Resilient Ecosystems” (NE/V006525/1). C.J.E.S. was funded by the EU Horizon 2020 Research and Innovation Program through the project CONSOLE (grant agreement 817949). C.M.D. acknowledges the support of the Montana Department of Agriculture’s Specialty Crop Block Grant Program under the Wild Bees of Montana. D.B.’s contribution was funded by the Slovenian Research Agency (projects P1-0255 and V1-1938). D.K.’s contribution was made possible through funding by the EU Horizon 2020 Safeguard project (101003476). H.S’s. contribution was funded by the Institute of Botany, Jagiellonian University in Kraków (N18/DBS/000002). L.J.C.’s contribution was funded by the Rural & Environment Science & Analytical Services Division of the Scottish Government (Theme C). L.V.D.’s contribution was funded by the Natural Environment Research Council (grant number NE/N014472/2).
© 2023 The Authors. Published by American Chemical Society.
- Delphi expert elicitation
- ecosystem service
- impact assessment
- pollinator abundance