GPS tracking data reveals daily spatio-temporal movement patterns of waterfowl

作者：Fiona McDuie, Michael L. Casazza, Cory T. Overton, Mark P. Herzog, Courtney Hartman, Sarah H. Peterson, Cliff L. Feldheim, Joshua T. Ackerman · 发表于：Movement Ecology · 年份：2019 · DOI：10.1186/s40462-019-0146-8 · 被引用次数：78 · 研究领域：Avian ecology and behavior、Animal Vocal Communication and Behavior、Rangeland and Wildlife Management

BACKGROUND: Spatio-temporal patterns of movement can characterize relationships between organisms and their surroundings, and address gaps in our understanding of species ecology, activity budgets, bioenergetics, and habitat resource management. Highly mobile waterfowl, which can exploit resources over large spatial extents, are excellent models to understand relationships between movements and resource usage, landscape interactions and specific habitat needs. METHODS: We tracked 3 species of dabbling ducks with GPS-GSM transmitters in 2015-17 to examine fine-scale movement patterns over 24 h periods (30 min interval), dividing movement pathways into temporally continuous segments and spatially contiguous patches. We quantified distances moved, area used and time allocated across the day, using linear and generalized linear mixed models. We investigated behavior through relationships between these variables. RESULTS: ) moved most, were more likely to conduct flights > 300 m, had FFDs of 0.8-1.1 km, used more segments and patches per day that they revisited more frequently, resulting in the longest daily total movements. Females and males differed only during the post-hunt season when females moved more. 23.6% of track segments were short duration (1-2 locations), approximately 1/3 more than would be expected if they occurred randomly, and were more dispersed in the landscape than longer segments. Distance moved in 30 min shortened as segment duration increased, likely reflect...