AUTHORS: Kristen M. Heath-Acre, Sarah W. Kendrick, Nicholas J. Bayly
ABSTRACT: The Motus Wildlife Tracking System is an international, collaborative network of automated telemetry towers that help track the movements of wildlife for conservation research. The Missouri Department of Conservation (MDC) established its first Motus receiver in 2018; since then, MDC has expanded its network to 40 stations across the state and plans to grow further. The initial goal was to create “digital fences” statewide to capture large scale movements of tagged migratory birds to fill knowledge gaps in the full annual cycles of birds of conservation concern. In the past 5 years, the Missouri Motus Network has detected 48 species of birds and has become a leader for Motus in the Midwest and the Mississippi Flyway. The Missouri Department of Conservation has also established partnerships with state, federal, and non-governmental agencies as well as international partners to tag, track, and investigate the survival, movements, migration timing, and stopover habitat of several species of migratory birds that breed or migrate through Missouri annually, including the rapidly declining Cerulean Warbler (Setophaga cerulea). Investigation into Cerulean Warbler winter survival and habitat use has revealed that Cerulean Warblers make within season winter movements, have differing habitat preference between males and females, and have relatively high overwinter survival. These data can be used to direct further research and inform full life cycle models. In addition to monitoring movements at regional and hemispheric scales, MDC has leveraged the Motus network to track and analyze local movements and survival of a reintroduced population of Brown-headed Nuthatches (Sitta pusilla) in the Missouri Ozark Highlands. Results from these analyses can help conservation partners better target management actions to protect and reverse declines of at-risk species at both local and hemispheric scales.
