Foot-thumping as an alarm signal in macropodoid marsupials: prevalence and hypotheses of function

摘要: 1 Alarm signalling as a means to reduce predation risk is an important component of the behavioural repertoire many species. It has previously been noted that macropodoid marsupials (kangaroos, wallabies and rat-kangaroos) produce foot-thump, audible signal created by striking ground with one or both feet, most likely alarm signal. 2 The prevalence foot-thumping within macropodoids hypotheses its function have poorly documented. To address this issue, we investigate in interpret possible according current theory. Evidence for was found almost all macropodoids. In light this, behaviour appears be conservative trait may arisen alongside followed evolution bipedal locomotion, suggests carries significant benefits transcend ecological differences among species. 3 Nine were explored order determine marsupials. However, existing evidence consistent remains inconclusive. Therefore, series predictions developed provide foundation future research more thoroughly