Can acclimation of thermal tolerance, in adults and across generations, act as a buffer against climate change in tropical marine ectotherms?

Morley, Simon A.; Nguyen, K.D.; Peck, Lloyd S.; Lai, Chien-Houng; Tan, Koh Siang

doi:10.1016/j.jtherbio.2016.09.007

Cited by 19 publications

(10 citation statements)

References 54 publications

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“…It could also be that high-or low-zone mussels' T flat would change if a larger stimulus (outside of their normal temperature range) was provided (Huey and Bennett, 1990;Palumbi, 1984), and that simply narrowing a mussel's daily temperature range does not change its T flat . However, we cannot rule out the possibility that T flat is predominantly determined by genetics (Kelly, 2019;Morley et al, 2017;Sorby et al, 2018).…”

Section: Changes In Cardiac Thermal Performance Within An Ecological Contextmentioning

confidence: 95%

Mussels' acclimatization to high, variable temperatures is lost slowly upon transfer to benign conditions

Moyen

Somero

Denny

2020

Journal of Experimental Biology

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Climate change is increasing the temperature variability animals face, and thermal acclimatization allows animals to adjust adaptively to this variability. Although the rate of heat acclimatization has received some study, little is known about how long these adaptive changes remain without continuing exposure to heat stress. This study explored the rate at which field acclimatization states are lost when temperature variability is minimized during constant submersion. California mussels (Mytilus californianus) with different acclimatization states were collected from high-and low-zone sites (∼12 versus ∼5°C daily temperature ranges, respectively) and then kept submerged at 15°C for 8 weeks. Each week, the cardiac thermal performance of mussels was measured as a metric of acclimatization state: critical (T crit ) and flatline (T flat ) temperatures were recorded. Over 8 weeks of constant submersion, the mean T crit of highzone mussels decreased by 1.07°C from baseline, but low-zone mussels' mean T crit was unchanged. High-and low-zone mussels' mean maximum heart rate (HR) and resting HR decreased ∼12 and 35%, respectively. T flat was unchanged in both groups. These data suggest that T crit and HR are more physiologically plastic in response to the narrowing of an animal's daily temperature range than T flat is, and that an animal's prior acclimatization state (high versus low) influences the acclimatory capacity of T crit . Approximately 2 months were required for the cardiac thermal performance of the high-zone mussels to reach that of the low-zone mussels, suggesting that acclimatization to high and variable temperatures may persist long enough to enable these animals to cope with intermittent bouts of heat stress.

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Section: Changes In Cardiac Thermal Performance Within An Ecological Contextmentioning

confidence: 95%

Mussels' acclimatization to high, variable temperatures is lost slowly upon transfer to benign conditions

Moyen

Somero

Denny

2020

Journal of Experimental Biology

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“…In organisms with rapid generation times, such as the marine polychaete Ophryotrocha labronica, studies indicate some positive performance in offspring in response to parental preconditioning to increased temperature and reduced pH up to the F6 generation (Gibbin et al 2017). In barnacles (Striatobalanus amaryllis and Amphibalanus amphitrite) and gastropod (Volegalea cochlidium) species, exposure of parents to increased temperatures increased the critical thermal maximum (i.e., the upper limits of thermal sensitivity) in the F1 and F2 generations above that of the parental generation (Morley et al 2017). A variety of marine fish display TGP in response to both ocean warming and acidification.…”

Section: Acclimatization Through Epigenetic Effectsmentioning

confidence: 99%

Marine Environmental Epigenetics

Eirín‐López

Putnam

2019

Annu. Rev. Mar. Sci.

211

173

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Marine organisms' persistence hinges on the capacity for acclimatization and adaptation to the myriad of interacting environmental stressors associated with global climate change. In this context, epigenetics-mechanisms that facilitate phenotypic variation through genotype-environment interactions-are of great interest ecologically and evolutionarily. Our comprehensive review of marine environmental epigenetics guides our recommendations of four key areas for future research: the dynamics of wash-in and wash-out of epigenetic effects, the mechanistic understanding of the interplay of different epigenetic marks and the interaction with the microbiome, the capacity for and mechanisms of transgenerational epigenetic inheritance, and the evolutionary implications of the interaction of genetic and epigenetic features. Emerging insights in marine environmental epigenetics can be applied to critical issues such as aquaculture, biomonitoring, and biological invasions, thereby improving our ability to explain and predict the responses of marine taxa to global climate change. Expected final online publication date for the Annual Review of Marine Science Volume 11 is January 3, 2019. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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“…In this system, increased plasticity in height allows the plants to optimize growth habit and light interception based on the relative suitability of the conditions they experience. The term 'acclimation' is often used to refer to plasticity that encompasses short term physiological changes in response to a changed environment and there is a large body of work on acclimation testing whether these responses are likely to be adaptive [26,[39][40][41][42]. For example, in the snow gum Eucalyptus pauciflora, alteration of pigment complexes in response to cold improves recovery of photosynthetic performance in spring [43], and hence is most likely adaptive.…”

Section: The Assessment Of Selection On Plasticitymentioning

confidence: 99%

Sparse evidence for selection on phenotypic plasticity in response to temperature

Arnold

Nicotra

Kruuk

2019

Phil. Trans. R. Soc. B

115

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Can acclimation of thermal tolerance, in adults and across generations, act as a buffer against climate change in tropical marine ectotherms?

Abstract: Thermal acclimation capacity was investigated in adults of three tropical marine invertebrates,

Cited by 19 publications

References 54 publications

Mussels' acclimatization to high, variable temperatures is lost slowly upon transfer to benign conditions

Mussels' acclimatization to high, variable temperatures is lost slowly upon transfer to benign conditions

Marine Environmental Epigenetics

Sparse evidence for selection on phenotypic plasticity in response to temperature

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