Energetic costs of locomotion in bears: is plantigrade locomotion energetically economical?
نویسندگان
چکیده
منابع مشابه
The energetic cost of limbless locomotion.
The net energetic cost of terrestrial locomotion by the snake Coluber constrictor, moving by lateral undulation, is equivalent to the net energetic cost of running by limbed animals (arthropods, lizards, birds, and mammals) of similar size. In contrast to lateral undulation and limbed locomotion, concertina locomotion by Coluber is more energetically expensive. The findings do not support the w...
متن کاملCosts of locomotion in polar bears: when do the costs outweigh the benefits of chasing down terrestrial prey?
Trade-offs between locomotory costs and foraging gains are key elements in determining constraints on predator-prey interactions. One intriguing example involves polar bears pursuing snow geese on land. As climate change forces polar bears to spend more time ashore, they may need to expend more energy to obtain land-based food. Given that polar bears are inefficient at terrestrial locomotion, a...
متن کاملPreferred and energetically optimal transition speeds during backward human locomotion.
Some aspects of backward locomotion are similar to forward locomotion, while other aspects are not related to their forward counterpart. The backward preferred transition speed (BPTS) has never been directly compared to the energetically optimal transition speed (EOTS), nor has it been compared to the preferred transition speed (PTS) during forward locomotion. The purpose of this study was to d...
متن کاملDynamic and Energetic Analysis of Impacts in Crutch Locomotion
Crutch walking is a widespread type of gait among elderly and injured people. The main problem of crutch locomotion is its high energy consumption which is between two and three times that of normal walking in terms of metabolic cost [1]. Furthermore, it is highly demanding for the upper-body muscles, which are not suited for such efforts. Despite these inconveniences, the psychological importa...
متن کاملEnergetic Extremes in Aquatic Locomotion by Coral Reef Fishes
Underwater locomotion is challenging due to the high friction and resistance imposed on a body moving through water and energy lost in the wake during undulatory propulsion. While aquatic organisms have evolved streamlined shapes to overcome such resistance, underwater locomotion has long been considered a costly exercise. Recent evidence for a range of swimming vertebrates, however, has sugges...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2018
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.175372