Flight Speeds, Lipid Reserves, and Predation of the Migratory Neotropical Moth Urania fulgens (Uraniidae)1

Robert Dudley; Robert B. Srygley; Evandro G. Oliveira; Phil J. DeVries

doi:10.1646/0006-3606(2002)034[0452:FSLRAP]2.0.CO;2

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Robert Dudley,¹ Robert B. Srygley,² Evandro G. Oliveira,³ Phil J. DeVries⁴

¹Section of Integrative Biology University of Texas at Austin Austin, Texas 78712, U.S.A
²Department of Zoology University of Oxford South Park Roads Oxford OX1 3PS, England
³Instituto de Ciencias Biologicas Universidade Federal de Minas Gerais 30161-970 Belo Horizonte, MG, Brazil
⁴Center for Biodiversity Studies Milwaukee Public Museum Milwaukee, Wisconsin 53233, U.S.A

Abstract

Aerodynamic theory predicts that migrant fliers should reduce their speed of flight as endogenous energy reserves are gradually consumed. This prediction was tested for Urania fulgens (Walker) moths migrating through central Panama in 1987 and again in 1998. Direct airspeed measurements together with chloroform:methanol extractions of abdominal lipids were used to determine that, contrary to theoretical predictions, the speed of flight among individuals was independent of both body mass and abdominal lipid mass.

Citation Download Citation

Robert Dudley, Robert B. Srygley, Evandro G. Oliveira, and Phil J. DeVries "Flight Speeds, Lipid Reserves, and Predation of the Migratory Neotropical Moth Urania fulgens (Uraniidae)," BIOTROPICA 34(3), 452-458, (1 September 2002). https://doi.org/10.1646/0006-3606(2002)034[0452:FSLRAP]2.0.CO;2

Received: 29 March 2001; Accepted: 1 March 2002; Published: 1 September 2002