Antagonistic selection between adult thorax and wing size in field released <i>Drosophila melanogaster</i> independent of thermal conditions

Hoffmann, Ary A.; Ratna, Endang Sri; Sgrò, Carla M.; Barton, Madeleine; Blacket, Mark J.; Hallas, Rebecca; Garis, S De; Weeks, Andrew R.

doi:10.1111/j.1420-9101.2007.01422.x

Cited by 50 publications

(59 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To determine whether there was antagonistic selection between thorax mass and wing size (e.g. [29]), logistic regressions were conducted where the distance moved (0 or 12 m) was used as the dependent variable. To quantify the association of thorax mass and wing size on the distance the individuals moved, multiple logistic regressions were conducted.…”

Section: (D) Laboratory Flight Experimentsmentioning

confidence: 99%

Dispersal propensity, but not flight performance, explains variation in dispersal ability

Steyn¹,

Mitchell²,

Terblanche³

2016

Proc. R. Soc. B.

View full text Add to dashboard Cite

Enhanced dispersal ability may lead to accelerated range expansion and increased rates of population establishment, thereby affecting population genetic structure and evolutionary potential. Morphological, behavioural and physiological traits that characterize dispersive individuals from residents are poorly understood for many invertebrate systems, especially in nonpolymorphic pterygote species. Here we examined phenotypic differences between dispersal-prone and philopatric individuals from repeated markrelease-recapture (MRR) experiments using an invasive agricultural pest, Ceratitis capitata. Comprehensive morphometric assessment and subsequent minimal adequate modelling using an information theoretic approach identified thorax mass : body mass ratio as a key predictor of disperser flies under semi-natural conditions. Performance differences in flight ability were then examined under controlled laboratory conditions to assess whether greater thorax mass : body mass ratio was associated with enhanced flight ability. The larger thorax : body mass ratio was associated with measurable differences in mean flight duration, most predominantly in males, and also by their willingness to disperse, scored as the number and duration of voluntary flights. No other measures of whole-animal flight performance (e.g. mean and peak vertical force, total or maximum flight duration) differed. Variation in voluntary behaviour may result in significant alterations of movement behaviour and realized dispersal in nature. This phenomenon may help explain intraspecific variation in the dispersal ability of insects.

show abstract

Section: (D) Laboratory Flight Experimentsmentioning

confidence: 99%

Dispersal propensity, but not flight performance, explains variation in dispersal ability

Steyn¹,

Mitchell²,

Terblanche³

2016

Proc. R. Soc. B.

View full text Add to dashboard Cite

show abstract

“…Given that previous studies have suggested that this trait may influence dispersal ability, 32 and given the lower ratio in females from the sticky ovitraps, it would seem prudent to try to match ratios in released material with those from the field. Temperature manipulations may need to be monitored closely with changing seasons, as there is some evidence from our May sampling data and previous studies 73,74 that temperature could affect wing load.…”

Section: Size and Shape In Released Mosquitoesmentioning

confidence: 99%

“…[28][29][30][31] In Drosophila, there is evidence for an association between wing loading and resource finding ability that contributes to an antagonistic interaction between wing size and thorax length. 32 An association between wing shape and fitness has also been suggested in insects including parasitoids (e.g., Reference 10), although some researchers have suggested that shape may be phenotypically invariable and unlikely to affect fitness. 33 Here, we first analyze variation among populations of laboratory and field females for adult size, based on measurements of both wing size and thorax length.…”

Section: Introductionmentioning

confidence: 99%

Body Size and Wing Shape Measurements as Quality Indicators of Aedes aegypti Mosquitoes Destined for Field Release

Yeap

Endersby²,

Johnson³

et al. 2013

The American Society of Tropical Medicine and Hygiene

View full text Add to dashboard Cite

Abstract. There is increasing interest in rearing modified mosquitoes for mass release to control vector-borne diseases, particularly Wolbachia-infected Aedes aegypti for suppression of dengue. Successful introductions require release of high quality mosquitoes into natural populations. Potential indicators of quality are body size and shape. We tested to determine if size, wing/thorax ratio, and wing shape are associated with field fitness of Wolbachia-infected Ae. aegypti. Compared with field-collected mosquitoes, released mosquitoes were larger in size, with lower size variance and different wing shape but similar in wing-thorax ratio and its associated variance. These differences were largely attributed to nutrition and to a minor extent to wMel Wolbachia infection. Survival potential of released female mosquitoes was similar to those from the field. Females at oviposition sites tended to be larger than those randomly collected from BG-Sentinel traps. Rearing conditions should thus aim for large size without affecting wing/thorax ratios.

show abstract

“…For insects such as Drosophila melanogaster, field releases examining the ability to locate resources can be used as an efficient tool to assess a component of fitness in the wild. Releases have now been used to test associations between fitness in the laboratory and the field (13,(15)(16)(17), inbreeding effects (18) and effects of density and size traits on field performance (19,20).…”

mentioning

confidence: 99%

Costs and benefits of cold acclimation in field-released Drosophila

Kristensen

Hoffmann

Overgaard

et al. 2008

Proc. Natl. Acad. Sci. U.S.A.

223

254

View full text Add to dashboard Cite

One way animals can counter the effects of climatic extremes is via physiological acclimation, but acclimating to one extreme might decrease performance under different conditions. Here, we use field releases of Drosophila melanogaster on two continents across a range of temperatures to test for costs and benefits of developmental or adult cold acclimation. Both types of cold acclimation had enormous benefits at low temperatures in the field; in the coldest releases only cold-acclimated flies were able to find a resource. However, this advantage came at a huge cost; flies that had not been cold-acclimated were up to 36 times more likely to find food than the cold-acclimated flies when temperatures were warm. Such costs and strong benefits were not evident in laboratory tests where we found no reduction in heat survival of the cold-acclimated flies. Field release studies, therefore, reveal costs of cold acclimation that standard laboratory assays do not detect. Thus, although physiological acclimation may dramatically improve fitness over a narrow set of thermal conditions, it may have the opposite effect once conditions extend outside this range, an increasingly likely scenario as temperature variability increases under global climate change.field performance ͉ plasticity ͉ thermal stress ͉ climate change ͉ thermal adaptation

show abstract

Antagonistic selection between adult thorax and wing size in field released Drosophila melanogaster independent of thermal conditions

Cited by 50 publications

References 40 publications

Dispersal propensity, but not flight performance, explains variation in dispersal ability

Dispersal propensity, but not flight performance, explains variation in dispersal ability

Body Size and Wing Shape Measurements as Quality Indicators of Aedes aegypti Mosquitoes Destined for Field Release

Costs and benefits of cold acclimation in field-released Drosophila

Contact Info

Product

Resources

About