Cockroaches on a treadmill: Aerobic running |
| |
Authors: | Clyde F Herreid Robert J Full |
| |
Institution: | Department of Biological Sciences, State University of New York at Buffalo, Buffalo, New York 14260, U.S.A. |
| |
Abstract: | Five species of cockroach were tested on a miniature treadmill at three velocities as O2 consumption () was measured: Gromphadorhina chopardi, Blaberus discoidalis, Eublaberus posticus, Byrsotria fumagata and Periplaneta americana. All cockroaches showed a classical aerobic response to running: increased rapidly from a resting rate to a steady-state on-response varied from under 30 s to 3 min. Recovery after exercise was rapid as well; off-response varied from under 30 s to 6 min. These times are faster or similar to mammalian values. varied directly with velocity as in running mammals, birds and reptiles. during steady-state running was only 4–12 times higher than at rest. Running is energetically much less costly per unit time than flying, but the cost of transport per unit distance is much more expensive for pedestrians. The minimal cost of transport (Mrun), the lowest necessary to transport a given mass a specific distance, is high in cockroaches due to their small size. The new data suggest that insects may be less economical than comparable sized vertebrates. |
| |
Keywords: | Cockroach running oxygen consumption energy locomotion Blaberus discoidalis Eublaberus posticus Byrsotria fumagata |
本文献已被 ScienceDirect 等数据库收录! |
|