Colder is better: The differential effects of thermal acclimation on life history parameters in a parasitoid fly

Zamorano, Jorge; Bozinovic, Francisco; Veloso, Claudio

doi:10.1016/j.jtherbio.2017.03.011

Cited by 6 publications

(8 citation statements)

References 43 publications

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“…Our results generally confirm the beneficial acclimation hypothesis (BAH) – clones exposed for a long time to specific thermal conditions display a preference (= perform better) for these conditions – but this effect is not consistent within a thermal continuum. The second-to-largest Cold clone was the best performer across the regimes, confirming the results found previously for parasitoids (Zamorano et al 2017) and thereby confirming the colder-is-better hypothesis (CIB). On the other hand, Warm clones, the smallest, confirm the previous positive results for hotter-is-better (HIB) (Kingsolver 2009; Knies et al 2009).…”

Section: Discussionsupporting

confidence: 89%

Clonal thermal preferences affect the strength of the temperature-size rule

Stuczynska

Sobczyk

Fiałkowska

et al. 2020

Preprint

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21Genetically similar organisms act as a powerful study system for the subtle differences in various 22 aspects of life histories. The issue of trade-offs among traits is of special interest. We used six 23 parthenogenetic rotifer clones previously exposed to different thermal laboratory conditions. 24 Interclonal differences in female body size were examined in common garden conditions. We 25 estimated the population growth rate and strength of the size-to-temperature response across four 26 thermal regimes. We tested hypotheses on the existence of the relationships between (i) thermal 27 acclimation and species body size, (ii) thermal specialization and fitness and (iii) thermal 28 specialization and strength of the temperature-size rule. Positive verification of (i) would make it 29 justifiable to refer the other investigated traits to thermal preference and, further, to thermal 30 specialization. Addressing the issues (ii) and (iii) is our pioneering contribution to the question on 31 the strength of size-to-temperature response as differing across life strategies. We hypothesized 32 that this plastic response may be affected by the level of thermal specialization and that this 33 pattern may be traded off with the temperature-dependent potential for population growth rate. 34Additionally, we investigated the differences in reproductive strategy (number of eggs laid by a 35 female and female lifetime duration) in one temperature assumed optimal, which acts as an 36 important supplement to the general clonal life strategy. We confirmed that the thermal 37 acclimation of a clone is related to body size, with clones acclimated to higher temperatures 38 being smaller. We also found that warm-acclimated clones have a narrower thermal range (= are 39 more specialized), and that the temperature-size rule is stronger in rotifers acclimated to 40 intermediate thermal conditions than in specialists. Our results contribute into the issue of trade-41 offs between generalist and specialist strategies, in the context of plastic body size respone to 42 different temperatures.43 3 specialization 45 46 Optimal allocation theory states that living organisms optimize their strategies of the allocation of 48 limited resources among the functions associated with maintenance, repair and reproduction. Any 49 given set of abiotic and biotic conditions provides a unique, optimal strategy, and trade-offs 50 among life history traits are at the base of such strategies (Cody ). The pattern of limited resources causing the traits to 52 trade is complex and troublesome with regard to straightforward inferences and conclusions 53 (Acerenza 2016; Lailvaux and Husak 2017; Roff and Fairbairn 2007). Going a step further, 54DeWitt (2016) stressed the importance of including not only trait means but also the shape (i.e., 55 skew) of phenotypic plasticity in studies on life-history optimization in ecological contexts. 56According to the author, the strength of phenotype distribution across environments should be 57 optimized by means of nat...

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Section: Discussionsupporting

confidence: 89%

Clonal thermal preferences affect the strength of the temperature-size rule

Stuczynska

Sobczyk

Fiałkowska

et al. 2020

Preprint

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“…On the other hand, evidence for the impact of colder developmental temperatures in fecundity is less conclusive, with positive effects observed in some studies (e.g. (Nunney and Cheung, 1997;Simões et al, 2020;Zamorano et al, 2017), but not in others (Angilletta et al, 2019;Huey et al, 1995;Klepsatel et al, 2019;Kristensen et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…An increasing number of experiments is starting to address more thoroughly the developmental thermal plasticity associated with adult life-history traits, mainly in ectotherms (Angilletta et al, 2019;Austin and Moehring, 2019;Cao et al, 2018;Klepsatel et al, 2019;Klockmann et al, 2017;Kristensen et al, 2012;Manenti et al, 2017;Porcelli et al, 2017;Zamorano et al, 2017). This is extremely relevant as traits closely related to fitness, such as fecundity and longevity, are crucial for population persistence and likely to be affected by climate change (Walsh et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

High developmental temperature leads to low reproduction despite adult temperature

Santos

Carromeu-Santos

Quina

et al. 2020

Preprint

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Phenotypic plasticity can be an important tool in helping organisms to cope with changing thermal conditions and it may show an interdependency between life-stages. For instance, exposure to stressful temperatures during development can trigger a positive plastic response in adults. In this study, we analyse the thermal plastic response of laboratory populations of Drosophila subobscura, derived from two contrasting latitudes of the European cline. We measured fecundity characters in the experimental populations after exposure to five thermal treatments, with different combinations of developmental and adult temperatures (14°C, 18°C or 26°C). We ask whether (1) adult performance is enhanced (or reduced) by exposing flies to higher (or lower) temperatures during development only; (2) flies raised at lower temperatures outperform those developed at higher ones, supporting the “colder is better” hypothesis; (3) there is a cumulative effect on adult performance of exposing both juveniles and adults to higher (or lower) temperatures; (4) there is any evidence for historical effects on adult performance. Our main findings show that (1) higher developmental temperatures led to low reproductive performance regardless of adult temperature, while at lower temperatures reduced performance only occurred when cold conditions were persistent across juvenile and adult stage; (2) flies raised at lower temperatures did not always outperform those developed at other temperatures; (3) there was no (negative) cumulative effect of exposing both juveniles and adults to higher temperatures; (4) both latitudinal populations showed similar thermal plasticity patterns. The negative effect of high developmental temperature on reproductive performance, regardless of adult temperature, highlights the developmental stage as a critical and most vulnerable stage to climate change and associated heat waves.

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“…An increasing number of experiments are addressing the developmental thermal plasticity associated with adult life-history traits, mainly in ectotherms (Angilletta et al, 2019;Austin and Moehring, 2019;Cao et al, 2018;Iossa et al, 2019;Klepsatel et al, 2019;Klockmann et al, 2017;Manenti et al, 2017;Porcelli et al, 2017;Zamorano et al, 2017 see Kelly, 2019;Mirth et al, 2020 for reviews). This line of research is extremely relevant as traits closely related to fitness, such as fecundity and longevity, are crucial for population persistence and very likely to be affected by climate change (Walsh et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

High developmental temperature leads to low reproduction despite adult temperature

Santos

Carromeu-Santos

Quina

et al. 2021

Journal of Thermal Biology

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Phenotypic plasticity can help organisms cope with changing thermal conditions and it may depend on which life-stage the thermal stress is imposed: for instance, exposure to stressful temperatures during development can trigger a positive plastic response in adults. Here, we analyze the thermal plastic response of laboratory populations of Drosophila subobscura, derived from two contrasting latitudes of the European cline. We measured reproductive performance through fecundity characters, after the experimental populations were exposed to five thermal treatments, with different combinations of developmental and adult temperatures (14°C, 18°C, or 26°C). Our questions were whether (1) adult performance is changed with exposure to higher (or lower) temperatures during development; (2) flies raised at lower temperatures outperform those developed at higher ones, supporting the "colder is better" hypothesis; (3) there is a cumulative effect on adult performance of exposing both juveniles and adults to higher (or lower) temperatures; (4) there is evidence for biogeographical effects on adult performance. Our main findings were that (1) higher developmental temperatures led to low reproductive performance regardless of adult temperature, while at lower temperatures reduced performance only occurred when colder conditions were persistent across juvenile and adult stages; (2) flies raised at lower temperatures did not always outperform those developed at other temperatures; (3) there were no harmful cumulative effects after exposing both juveniles and adults to higher temperatures; (4) both latitudinal populations showed similar thermal plasticity patterns. The negative effect of high developmental temperature on reproductive performance, regardless of adult temperature, highlights the developmental stage as very critical and most vulnerable to climate change and associated heat waves.

show abstract

Colder is better: The differential effects of thermal acclimation on life history parameters in a parasitoid fly

Cited by 6 publications

References 43 publications

Clonal thermal preferences affect the strength of the temperature-size rule

Clonal thermal preferences affect the strength of the temperature-size rule

High developmental temperature leads to low reproduction despite adult temperature

High developmental temperature leads to low reproduction despite adult temperature

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