- Roger LathamPennsylvania Natural Heritage ProgramEcologist/Conservation Biologist(610) 565-3405
- Claudine LaurendeauCentre de Donnees sur le Patrimoine Naturel du QuébecAssistant Zoologist(418) 627-8694 ext. 7454
- Jesse LeddickMassachusetts Natural Heritage & Endangered Species ProgramAssistant Director for Natural Heritage & Endangered Species(781) 375-7597
- Jeffrey LeeMinnesota Natural Heritage ProgramPlant Ecologist / Botanist218-723-4763 ext. 227