Hot males live fast and die young: habitat segregation, reproductive output, and lifespan of sympatric Mnais damselflies

Tsubaki, Yoshitaka; Samejima, Yuka

doi:10.1007/s00265-016-2095-1

Cited by 6 publications

(5 citation statements)

References 40 publications

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“…At higher air temperatures male Duke of Burgundy butterflies increased the number and duration of energetically demanding territorial flights, including those involved with mate interception, which have been suggested to impact reproductive output in other insect species (Shreeve 1984;Tsubaki and Samejima 2016). In contrast, other flights, not associated with maintaining territories or chasing mates, were unaffected by temperature.…”

Section: Discussionmentioning

confidence: 94%

“…However, the fact that the net increase in flight activity for the Duke of Burgundy appears to be purely the result of a rise in territorial behaviour, including mate intercept flights, is more notable. Other studies have suggested this behaviour can impact the reproductive success of individuals (Shreeve 1984;Tsubaki and Samejima 2016) with potential consequences for the total population size in an area.…”

Section: Temperature and Flight Typementioning

confidence: 99%

“…To ensure a future for the Duke of Burgundy butterfly in the UK, management directed at the adult life stage, producing warm microclimates that promote energetic flights, including behaviour that may have an impact on the reproductive output of populations (Shreeve 1984;Tsubaki and Samejima 2016) is extremely important. Highly sheltered areas, such as those already occupied by the Duke of Burgundy at Totternhoe Quarry Reserve (Hayes et al 2018) need to be maintained and replicated where possible (Turner et al 2009).…”

Section: Conservation In the Light Of Climate Changementioning

confidence: 99%

“…Therefore, energetically demanding feats, such as active flight, territory defence and mating behaviour usually require high ambient temperatures (Wasserthal 1975;Larsson and Tengo 1989;Larsson and Kustvall 1990;Ide 2010;Bennett et al 2014). For example, Tsubaki and Samejima (2016) found male Mnais costalis damselflies to have higher reproductive outputs when occupying territories that were exposed to the sun for longer periods of time. They suggest this could be due to males being able to attain higher thoracic temperatures, allowing more regular and intense courtship behaviour.…”

Section: Introductionmentioning

confidence: 99%

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Temperature and territoriality in the Duke of Burgundy butterfly, Hamearis lucina

Hayes¹,

Hitchcock

Knock

et al. 2019

J Insect Conserv

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The Duke of Burgundy butterfly (Hamearis lucina) has undergone severe declines over the last four decades. However, in recent years the UK population appears to have begun expanding again. This is likely to be due to beneficial management, although a warming regional climate may also have contributed to the resurgence of this spring-flying species. In this study, we investigated the effect of air temperature on the flight behaviour of adult male Duke of Burgundy butterflies. We also looked at the ability of adult males to behaviourally thermoregulate their body temperature and assessed their tendency to remain within small established territories. Increasing air temperature lead to a marked increase in the number and duration of flights associated with territorial behaviour but had no significant effect on other flights. This suggests that high temperatures are particularly important for sustaining energetically-demanding flights involved in territory defence and mate interception, which could impact the reproductive potential of Duke of Burgundy populations. We also found that butterflies had only a limited ability to regulate their body temperature behaviourally and may, therefore, be especially dependent on suitable environmental conditions to maintain the right temperatures for these flights. During observations, most males also remained confined to a few square meters within their territories, which could further restrict butterfly ability to thermoregulate by limiting relocation to other habitat types. However, we did find more males to leave the confines of their territories than expected from reports in previous studies. Our findings highlight the key role that warm, sheltered locations on reserves have in supporting the Duke of Burgundy. If this traditionally poor disperser is to take advantage of a warmer climate and extend its range North, a close network of such areas, appropriately managed, may be critical.

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Section: Discussionmentioning

confidence: 94%

Section: Temperature and Flight Typementioning

confidence: 99%

Section: Conservation In the Light Of Climate Changementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Temperature and territoriality in the Duke of Burgundy butterfly, Hamearis lucina

Hayes¹,

Hitchcock

Knock

et al. 2019

J Insect Conserv

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“…1C-D, G-H) might partly compensate for the negative temperature effects on longevity (Figs. 1A-B, E-F), leading towards a thermally-mediated life-history shift with shorter life spans but with elevated reproduction (51).…”

Section: Discussionmentioning

confidence: 99%

Selection on phenotypic plasticity favors thermal canalization

Svensson

Gómez‐Llano

Waller

2020

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

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Climate change affects organisms worldwide with profound ecological and evolutionary consequences, often increasing population extinction risk. Climatic factors can increase the strength, variability, or direction of natural selection on phenotypic traits, potentially driving adaptive evolution. Phenotypic plasticity in relation to temperature can allow organisms to maintain fitness in response to increasing temperatures, thereby “buying time” for subsequent genetic adaptation and promoting evolutionary rescue. Although many studies have shown that organisms respond plastically to increasing temperatures, it is unclear if such thermal plasticity is adaptive. Moreover, we know little about how natural and sexual selection operate on thermal reaction norms, reflecting such plasticity. Here, we investigate how natural and sexual selection shape phenotypic plasticity in two congeneric and phenotypically similar sympatric insect species. We show that the thermal optima for longevity and mating success differ, suggesting temperature-dependent trade-offs between survival and reproduction in both sexes. Males in these species have similar thermal reaction norm slopes but have diverged in baseline body temperature (intercepts), being higher for the more northern species. Natural selection favored reduced thermal reaction norm slopes at high ambient temperatures, suggesting that the current level of thermal plasticity is maladaptive in the context of anthropogenic climate change and that selection now promotes thermal canalization and robustness. Our results show that ectothermic animals also at high latitudes can suffer from overheating and challenge the common view of phenotypic plasticity as being beneficial in harsh and novel environments.

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Territoriality in Aquatic Insects

Grether

2019

Aquatic Insects

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Hot males live fast and die young: habitat segregation, reproductive output, and lifespan of sympatric Mnais damselflies

Cited by 6 publications

References 40 publications

Temperature and territoriality in the Duke of Burgundy butterfly, Hamearis lucina

Temperature and territoriality in the Duke of Burgundy butterfly, Hamearis lucina

Selection on phenotypic plasticity favors thermal canalization

Territoriality in Aquatic Insects

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