EurekaMag.com logo
+ Site Statistics
References:
54,215,046
Abstracts:
30,230,908
PMIDs:
28,215,208
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

A comparison of mechanical and energetic estimates of flight cost for hovering sphinx moths



A comparison of mechanical and energetic estimates of flight cost for hovering sphinx moths



Journal of Experimental Biology 91: 117-129



Mechanical power output, based on measured power input, is compared with calculated values for aerodynamic and inertial power output in sphinx moths ranging 350-3400 mg. Aerodynamic power output, calculated from momentum and blade-element aerodynamic theories, scales with the 1.08 power of body mass, amounting to about 40% of the mechanical power output of large moths to about 15% in the smallest individuals. Calculated values for the inertial power cost of hovering represents a larger fraction of the mechanical power output than the aerodynamic cost in all moths, with the value increasing as body mass decreases. Independent estimates of inertial power output based on metabolic data are similar to those obtained from calculations of the moment of inertia for the wings. Inertial power output probably represents the largest power requirement for hovering sphinx moths, and elastic torques do not significantly reduce the mechanical power output. Higher mass-specific power input of small sphinx moths appears to be the result of greater mass-specific inertial power requirements. Estimates of flight cost based on morphology and flight mechanics of sphinx moths yield values for mechanical power output which are similar to values estimated from their flight metabolism.

(PDF emailed within 1 workday: $29.90)

Accession: 000804961

Download citation: RISBibTeXText



Related references

Flight energetics of sphinx moths: power input during hovering flight. Journal of Experimental Biology 64(3): 529-543, 1976

Energetic cost of hovering flight in nectar-feeding bats (Phyllostomidae: Glossophaginae) and its scaling in moths, birds and bats. Journal of Comparative Physiology B Biochemical Systemic and Environmental Physiology 169(1): 38-48, 1999

Energetic cost of hovering flight in a nectar-feeding bat measured with fast-response respirometry. Journal Of Comparative Physiology B Biochemical Systemic & Environmental Physiology. 168(6): 434-444,., 1998

The abdominal scent organs in males of sphinx moths further contributions to the knowledge of the sphinx moths iii lepidoptera sphingidae. Mitteilungen der Deutschen Entomologischen Gesellschaft 27(1): 6-8, 1968

Flight energetics in sphinx moths: heat production and heat loss in Hyles lineata during free flight. Journal of Experimental Biology 64(3): 545-560, 1976

Rates of post-flight cooling in sphinx moths. Ecological Stud, 12: 405-415, 1975

Drag-based 'hovering' in ducks: the hydrodynamics and energetic cost of bottom feeding. Plos One 5(9): E12565-E12565, 2011

Drag-Based Hovering in Ducks The Hydrodynamics and Energetic Cost of Bottom Feeding. PLoS ONE 5(9): e12565, 2010

Quick estimates of flight fitness in hovering animals, including novel mechanisms for lift production. Journal of experimental biology: 59 (1) 169-230, 1973

Untethered hovering flapping flight of a 3D-printed mechanical insect. Artificial Life 17(2): 73-86, 2011

Energy cost of hovering flight in glossophaga soricina estimated with different methods. Bat Research News 33(4): 81, 1991

Comparison of mechanical and biochemical estimation of energetic cost of 100m and 200m sprint running. Journal of Biomechanics 27(6): 696, 1994

Flight behavior and mechanical power output during hovering in the hawkmoth manduca sexta. American Zoologist 28(4): 41A, 1988