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Title: Data from: Effects of increased flight on the energetics and life history of the butterfly Speyeria mormonia      
keywords:
Ageing
insect
lifespan
oxidative stress
reproduction
resource allocation
senescence
type:
Article
description:
Movement uses resources that may otherwise be allocated to somatic maintenance or reproduction. How does increased energy expenditure affect resource allocation? Using the butterfly Speyeria mormonia, we tested whether experimentally increased flight affects fecundity, lifespan or flight capacity. We measured body mass (storage), resting metabolic rate and lifespan (repair and maintenance), flight metabolic rate (flight capacity), egg number and composition (reproduction), and food intake across the adult lifespan. The flight treatment did not affect body mass or lifespan. Food intake increased sufficiently to offset the increased energy expenditure. Total egg number did not change, but flown females had higher early-life fecundity and higher egg dry mass than control females. Egg dry mass decreased with age in both treatments. Egg protein, triglyceride or glycogen content did not change with flight or age, but some components tracked egg dry mass. Flight elevated resting metabolic rate, indicating increased maintenance costs. Flight metabolism decreased with age, with a steeper slope for flown females. This may reflect accelerated metabolic senescence from detrimental effects of flight. These effects of a drawdown of nutrients via flight contrast with studies restricting adult nutrient input. There, fecundity was reduced, but flight capacity and lifespan were unchanged. The current study showed that when food resources were abundant, wing-monomorphic butterflies living in a continuous meadow landscape resisted flight-induced stress, exhibiting no evidence of a flight-fecundity or flight-longevity trade-off. Instead, flight changed the dynamics of energy use and reproduction as butterflies adopted a faster lifestyle in early life. High investment in early reproduction may have positive fitness effects in the wild, as long as food is available. Our results help to predict the effect of stressful conditions on the life history of insects living in a changing world.
ID:
oai:datadryad.org:10255/dryad.100119
accesstypes:
download
landingPage: http://hdl.handle.net/10255/dryad.100119
authentication:
none
authorization:
none
ID:
doi:10.5061/dryad.ts705
Niitepõld K, Boggs CL (2015) Effects of increased flight on the energetics and life history of the butterfly Speyeria mormonia. PLOS ONE 10(10): e0140104.
http://hdl.handle.net/10255/dryad.100119
PONE-D-15-21197
setID:
hdl_10255_3
recNum:
89
setName:
Main
dateReleased:
10-29-2015
issueDate:
20151028
accessionDate:
10-29-2015
dateCreated:
10-29-2015
abbreviation:
Dryad
ID:
SCR:005910
name:
Dryad Digital Repository
homepage: http://www.datadryad.org
ID:
SCR:005910
name:
Dryad Data Repository

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