Successful despite poor flight performance: range expansion is associated with enhanced exploratory behaviour and fast development

Reim, Elisabeth; Blesinger, Simone; Forster, Lisa D.; Fischer, Klaus

doi:10.1111/jeb.13294

Cited by 13 publications

(12 citation statements)

References 84 publications

(126 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, we did not find differences between sexes, although a better flight performance in males has been shown for the study species in previous experiments (Reim et al. , b, see Fig. b for a non‐significant tendency).…”

Section: Discussionsupporting

confidence: 43%

“…Third, flight performance was measured after the experiments on emigration propensity, which could have influenced the results obtained. For instance, we did not find differences between sexes, although a better flight performance in males has been shown for the study species in previous experiments (Reim et al 2018a, b, see Fig. 4b for a non-significant tendency).…”

Section: Study Limitationssupporting

confidence: 51%

See 1 more Smart Citation

Emigration propensity and flight performance are decoupled in a butterfly

et al. 2018

Self Cite

View full text Add to dashboard Cite

Dispersal, defined as any movements potentially leading to gene flow, is a major process driving a species’ capacity to cope with human‐induced environmental modifications. However, the dispersal process is multi‐causal, which currently hinders predictions regarding a species’ resilience to global change. We used a multifaceted approach to disentangle the relative importance of a suite of dispersal‐related factors in the butterfly Lycaena tityrus, including condition‐ (morphology and behavior) and context‐ (environmental) dependent factors. Experiments were conducted at an experimental platform dedicated to study dispersal, the Metatron, to record emigration propensity in two‐patch experimental metapopulations under different environmental conditions. The butterflies’ individual condition was subsequently assessed in the laboratory. Individual condition did not generally influence emigration propensity. We detected a significant sex bias in emigration propensity, being generally higher in females than in males, but in a context‐dependent manner. The environmental context affected emigration propensity, which was higher when habitat quality was poor. Our results show that emigration is not random in L. tityrus, but is rather an active process triggered by sex and habitat quality. Our main finding was that individual condition, and particularly flight ability measured by a performance test, was not related to emigration propensity in experimental metapopulations. Our results may have important implications for forecasting future species distributions, as deteriorating environmental contexts are likely to increase emigration whatever the individual condition is.

show abstract

Section: Discussionsupporting

confidence: 43%

Section: Study Limitationssupporting

confidence: 51%

Emigration propensity and flight performance are decoupled in a butterfly

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Interestingly, experimental estimations of flight endurance do not reflect this. For example, some studies of Pieris brassicae reported higher flight endurance in females relative to males (Ducatez et al ., ; Reim et al ., ). Thus, the generally lower flight activity observed in females may not reflect weaker flight capacity, but could simply reflect behavioural adjustments to save energy.…”

Section: What Selective Factors Influence Flight and Associated Wing mentioning

confidence: 97%

Adaptive evolution of butterfly wing shape: from morphology to behaviour

2019

View full text Add to dashboard Cite

Butterflies display extreme variation in wing shape associated with tremendous ecological diversity. Disentangling the role of neutral versus adaptive processes in wing shape diversification remains a challenge for evolutionary biologists. Ascertaining how natural selection influences wing shape evolution requires both functional studies linking morphology to flight performance, and ecological investigations linking performance in the wild with fitness. However, direct links between morphological variation and fitness have rarely been established. The functional morphology of butterfly flight has been investigated but selective forces acting on flight behaviour and associated wing shape have received less attention. Here, we attempt to estimate the ecological relevance of morpho-functional links established through biomechanical studies in order to understand the evolution of butterfly wing morphology. We survey the evidence for natural and sexual selection driving wing shape evolution in butterflies, and discuss how our functional knowledge may allow identification of the selective forces involved, at both the macro-and micro-evolutionary scales. Our review shows that although correlations between wing shape variation and ecological factors have been established at the macro-evolutionary level, the underlying selective pressures often remain unclear. We identify the need to investigate flight behaviour in relevant ecological contexts to detect variation in fitness-related traits. Identifying the selective regime then should guide experimental studies towards the relevant estimates of flight performance. Habitat, predators and sex-specific behaviours are likely to be major selective forces acting on wing shape evolution in butterflies. Some striking cases of morphological divergence driven by contrasting ecology involve both wing and body morphology, indicating that their interactions should be included in future studies investigating co-evolution between morphology and flight behaviour.

show abstract

“…Previous empirical range expansion studies have mainly focused on species with fast life histories (i.e. the classical r-strategists) [11,22,23]. Climate change-induced range shift, however, also concerns species on the other extreme of the pace-of-life continuum [24].…”

Section: Introductionmentioning

confidence: 99%

Range expansion is associated with increased survival and fecundity in a long-lived bat species

et al. 2019

View full text Add to dashboard Cite

The speed and dynamics of range expansions shape species distributions and community composition. Despite the critical impact of population growth rates for range expansion, they are neglected in existing empirical studies, which focus on the investigation of selected life-history traits. Here, we present an approach based on non-invasive genetic capture–mark–recapture data for the estimation of adult survival, fecundity and juvenile survival, which determine population growth. We demonstrate the reliability of our method with simulated data, and use it to investigate life-history changes associated with range expansion in 35 colonies of the bat species Rhinolophus hipposideros . Comparing the demographic parameters inferred for 19 of those colonies which belong to an expanding population with those inferred for the remaining 16 colonies from a non-expanding population reveals that range expansion is associated with higher net reproduction. Juvenile survival was the main driver of the observed reproduction increase in this long-lived bat species with low per capita annual reproductive output. The higher average growth rate in the expanding population was not associated with a trade-off between increased reproduction and survival, suggesting that the observed increase in reproduction stems from a higher resource acquisition in the expanding population. Environmental conditions in the novel habitat hence seem to have an important influence on range expansion dynamics, and warrant further investigation for the management of range expansion in both native and invasive species.

show abstract

Successful despite poor flight performance: range expansion is associated with enhanced exploratory behaviour and fast development

Cited by 13 publications

References 84 publications

Emigration propensity and flight performance are decoupled in a butterfly

Emigration propensity and flight performance are decoupled in a butterfly

Adaptive evolution of butterfly wing shape: from morphology to behaviour

Range expansion is associated with increased survival and fecundity in a long-lived bat species

Contact Info

Product

Resources

About