About the Authors

Drs. Josh M. London and Devin S. Johnson are researchers with the NOAA National Marine Fisheries Service. Dr. London is a wildlife biologist at the Alaska Fisheries Science Center’s Marine Mammal Laboratory in Seattle, Washington. Dr. Johnson is a mathematical statistician at the Pacific Islands Fisheries Science Center’s Protected Species Division in Honolulu, Hawaii. Dr. London has over 15 years of experience programming and deploying satellite tags on phocid seals. He has also developed various workflows for the management of telemetry data in R. Dr. Johnson is a leading statistical ecologist with expertise in the analysis of animal movement. Dr. Johnson is the lead author and developer of the R package crawl. Dr. London is the lead author of the R package pathroutr and co-developer of crawl.