Figure 1
From: Longest terrestrial migrations and movements around the world
Locations of the study areas of some of the longest, terrestrial migrations and movements in the world. Migration distances are shown as lines of a length equaling half the round-trip distance (RTD), roughly oriented in the direction of the migration for that species. Total annual movement distances (TCAD) are depicted as circles with circumferences equaling how far that species moves in a year. Both RTDs and TCADs are color-coded to match species icons and are scaled to be directly comparable to each other and to all species. They may not match the world backdrop in some locations due to projection issues. Areas with greater human density are shaded darker.
