Genotype by temperature interactions in the metabolic rate of the Glanville fritillary butterfly

Niitepõld, Kristjan

doi:10.1242/jeb.034132

Cited by 49 publications

(76 citation statements)

References 51 publications

(59 reference statements)

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“…2007). In the Glanville fritillary, individuals with the Pgi genotype associated with high FMR in standard temperatures do worse as temperatures increase (Niitepõld 2010). Here, the same Hsp70 SNP ( Hsp70_1:206 ) which influenced takeoff T b was also significantly associated with FMR in male butterflies, explaining as much as 24% of variation in FMR.…”

Section: Discussionmentioning

confidence: 99%

“…(2005), while other studies have reported even greater differences (Niitepõld et al. 2009; Niitepõld 2010). Variation in the results may be due to acclimatization to different thermal conditions prior to the experiments, as the differences between the Pgi genotypes appear to be greatest in individuals acclimatized to low ambient temperatures (S.C. Wong, A. Oksanen, A.L.K.…”

Section: Discussionmentioning

confidence: 99%

“…(1983) suggested that differences among the genotypes in their ability to fly at low ambient temperatures are due to differences in the kinetic performance of the respective isoforms of the PGI enzyme at different temperatures. In the Glanville fritillary, the Pgi SNP c.331 AA genotype (allozyme PGI‐d), which is associated with low flight metabolism in standard temperatures, indeed outperforms the other genotypes in high and low ambient temperatures (Niitepõld 2010; Kallioniemi and Hanski 2011). Moreover, the AA homozygotes have better tolerance of stressfully high temperatures (Luo et al.…”

Section: Introductionmentioning

confidence: 98%

“…2005; Niitepõld et al. 2009; Niitepõld 2010), and indeed, flight metabolic rate correlates positively with dispersal rate in the field, explaining up to one‐third of the variation in flight distances (Niitepõld et al. 2009).…”

Section: Introductionmentioning

confidence: 99%

“…2005; Niitepõld et al. 2009; Niitepõld 2010), it is feasible that it could influence the thermal dynamics of flight.…”

Section: Introductionmentioning

confidence: 99%

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Thermal biology of flight in a butterfly: genotype, flight metabolism, and environmental conditions

Mattila

2015

Ecology and Evolution

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Knowledge of the effects of thermal conditions on animal movement and dispersal is necessary for a mechanistic understanding of the consequences of climate change and habitat fragmentation. In particular, the flight of ectothermic insects such as small butterflies is greatly influenced by ambient temperature. Here, variation in body temperature during flight is investigated in an ecological model species, the Glanville fritillary butterfly (Melitaea cinxia). Attention is paid on the effects of flight metabolism, genotypes at candidate loci, and environmental conditions. Measurements were made under a natural range of conditions using infrared thermal imaging. Heating of flight muscles by flight metabolism has been presumed to be negligible in small butterflies. However, the results demonstrate that Glanville fritillary males with high flight metabolic rate maintain elevated body temperature better during flight than males with a low rate of flight metabolism. This effect is likely to have a significant influence on the dispersal performance and fitness of butterflies and demonstrates the possible importance of intraspecific physiological variation on dispersal in other similar ectothermic insects. The results also suggest that individuals having an advantage in low ambient temperatures can be susceptible to overheating at high temperatures. Further, tolerance of high temperatures may be important for flight performance, as indicated by an association of heat‐shock protein (Hsp70) genotype with flight metabolic rate and body temperature at takeoff. The dynamics of body temperature at flight and factors affecting it also differed significantly between female and male butterflies, indicating that thermal dynamics are governed by different mechanisms in the two sexes. This study contributes to knowledge about factors affecting intraspecific variation in dispersal‐related thermal performance in butterflies and other insects. Such information is needed for predictive models of the evolution of dispersal in the face of habitat fragmentation and climate change.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%