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Human disturbance causes widespread disruption of animal movement

posted on 22.01.2021, 05:10 by Tim DohertyTim Doherty, Graeme Hays, Don Driscoll
We used systematic review methods to compile a database of studies of animal movement from terrestrial, marine and freshwater ecosystems. We extracted data on home range size and movement distances in disturbed and undisturbed treatments in before-after, control-impact, or BACI designs. We used the means from each treatment to calculate log response ratios (lnRR), where values of 0 represent no effect, positive values represent increased movement in response to disturbance, and negative values represent reduced movement. Overall, our database comprised 719 effect sizes from 208 studies and 167 species. We recorded the disturbance type for each effect size and the body mass (g) and trophic level (herbivore, omnivore or carnivore) of each species.