BIOPHYSICS, PHYSIOLOGICAL ECOLOGY, AND CLIMATE CHANGE: Does Mechanism Matter?

Helmuth, Brian; Kingsolver, Joel G.; Carrington, Emily

doi:10.1146/annurev.physiol.67.040403.105027

Cited by 399 publications

(367 citation statements)

References 168 publications

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“…Increased flow elicited the strongest response, significantly decreasing thread production in mussels. This result was confirmed in flume experiments exposing mussels to a unless mussels can increase their attachment strength (Carrington, 2002a;Helmuth et al, 2005).…”

Section: Introductionsupporting

confidence: 55%

“…Since hurricane season coincides with the period of weakest attachment, the inability of mussels to respond positively to wave action could severely increase dislodgement. This increase in hurricane activity also occurs concomitantly with an increase in sea surface temperature (Webster et al, 2005), which is represented not only by a change in local temperature, but has also manifested itself as changes in wave height, precipitation and other atmospheric conditions, seasonal patterns, and even nutrient abundance (Helmuth et al, 2005). Because these factors are interconnected, it is difficult to predict how mussels will respond to changes in any single environmental variable (Helmuth et al, 2005).…”

Section: P<0001mentioning

confidence: 99%

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Seasonal influence of wave action on thread production in Mytilus edulis

Moeser

Leba

Carrington

2006

Journal of Experimental Biology

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range of flows, with reduced thread production above 15·cm·s -1 . The influence of both acceleration and byssal loading was sporadic and inconsistent across seasons. Surprisingly, overall thread production in the laboratory was lowest in winter, a time when mussels typically peak in attachment. A similar seasonal pattern was observed in field assays, with high thread production during periods of elevated temperature, reduced wave action, and high reproductive condition. These results suggest that seasonal variation in attachment strength does not reflect increased thread production in response to wave action, and that other possible factors, such as seasonal variability in both the material properties of byssal threads and thread decay rates, warrant further investigation.

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Section: Introductionsupporting

confidence: 55%

Section: P<0001mentioning

confidence: 99%

Seasonal influence of wave action on thread production in Mytilus edulis

Moeser

Leba

Carrington

2006

Journal of Experimental Biology

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“…Such knowledge of the physiological performance of insects in different thermal environments is needed for predictive models of the evolution of dispersal in the face of habitat fragmentation and climate change (Helmuth et al. 2005). …”

Section: Discussionmentioning

confidence: 99%

Thermal biology of flight in a butterfly: genotype, flight metabolism, and environmental conditions

Mattila

2015

Ecology and Evolution

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Knowledge of the effects of thermal conditions on animal movement and dispersal is necessary for a mechanistic understanding of the consequences of climate change and habitat fragmentation. In particular, the flight of ectothermic insects such as small butterflies is greatly influenced by ambient temperature. Here, variation in body temperature during flight is investigated in an ecological model species, the Glanville fritillary butterfly (Melitaea cinxia). Attention is paid on the effects of flight metabolism, genotypes at candidate loci, and environmental conditions. Measurements were made under a natural range of conditions using infrared thermal imaging. Heating of flight muscles by flight metabolism has been presumed to be negligible in small butterflies. However, the results demonstrate that Glanville fritillary males with high flight metabolic rate maintain elevated body temperature better during flight than males with a low rate of flight metabolism. This effect is likely to have a significant influence on the dispersal performance and fitness of butterflies and demonstrates the possible importance of intraspecific physiological variation on dispersal in other similar ectothermic insects. The results also suggest that individuals having an advantage in low ambient temperatures can be susceptible to overheating at high temperatures. Further, tolerance of high temperatures may be important for flight performance, as indicated by an association of heat‐shock protein (Hsp70) genotype with flight metabolic rate and body temperature at takeoff. The dynamics of body temperature at flight and factors affecting it also differed significantly between female and male butterflies, indicating that thermal dynamics are governed by different mechanisms in the two sexes. This study contributes to knowledge about factors affecting intraspecific variation in dispersal‐related thermal performance in butterflies and other insects. Such information is needed for predictive models of the evolution of dispersal in the face of habitat fragmentation and climate change.

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“…Phenotypic plasticity might not only account for much of the variation among populations (Ayrinhac et al, 2004;Hoffmann et al, 2005b), but could also significantly affect the nature of evolutionary responses of populations (Price et al, 2003) and their likely survival, especially in the face of rapidly changing modern climates (Helmuth et al, 2005;Somero, 2005). Physiologists have long assumed that acclimation (or acclimatization, both are forms of plasticity) to a particular environment enhances performance in that environment (e.g.…”

Section: Introductionmentioning

confidence: 99%

The relative contributions of developmental plasticity and adult acclimation to physiological variation in the tsetse fly, Glossina pallidipes (Diptera, Glossinidae)

Terblanche¹,

Chown²

2007

Comparative Biochemistry and Physiology Part A: Molecular &

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Recent reviews of the adaptive hypotheses for animal responses to acclimation have highlighted the importance of distinguishing between developmental and adult (nondevelopmental) phenotypic plasticity. There has been little work, however, on separating the effects of developmental plasticity from adult acclimation on physiological traits. Therefore, we investigated the relative contributions of these two distinct forms of plasticity to the environmental physiology of adult tsetse flies by exposing developing pupae or adult flies to different temperatures and comparing their responses. We also exposed flies to different temperatures during development and reexposed them as adults to the same temperatures, to investigate possible cumulative effects. Critical thermal maxima were relatively inflexible in response to acclimation temperatures (21, 25, 29°C) with plasticity type accounting for the majority of the variation (49-67%, nested ANOVA). By contrast, acclimation had a larger effect on critical thermal minima with treatment temperature accounting for most of the variance (84-92%). Surprisingly little of the variance in desiccation rate could be explained by plasticity type (30-47%). The only significant effect of acclimation temperature on standard (resting) metabolic rate of adult flies was at 21°C, resulting in treatment temperature, rather than plasticity type, accounting for the majority of the variance (30-76%). This study demonstrates that the stage at which acclimation takes place has significant, though often different, effects on several adult physiological traits in G. pallidipes, and therefore that it is not only important to consider the form of plasticity but also the direction of the response and its significance from a life-history perspective.

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BIOPHYSICS, PHYSIOLOGICAL ECOLOGY, AND CLIMATE CHANGE: Does Mechanism Matter?

Cited by 399 publications

References 168 publications

Seasonal influence of wave action on thread production in Mytilus edulis

Seasonal influence of wave action on thread production in Mytilus edulis

Thermal biology of flight in a butterfly: genotype, flight metabolism, and environmental conditions

The relative contributions of developmental plasticity and adult acclimation to physiological variation in the tsetse fly, Glossina pallidipes (Diptera, Glossinidae)

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