Thermal acclimation in the crayfish, Orconectes rusticus and O. virilis

Claussen, Dennis L.

doi:10.1016/0300-9629(80)90183-8

Cited by 50 publications

(34 citation statements)

References 27 publications

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“…1 and 2) . Although hyperbolic (Type I) patterns seem more common, similar Type II patterns have been described for a few crustaceans (see Claussen 1980), for the urodeles Necturus maculosus (Hutchison & Rowlan 1975) and Eurycea bislineata (Layne & Claussen 1982), and for lizards (Art & Claussen 1982) . Undershoot (Type Ila) reverse acclimation patterns (Figs .…”

Section: Discussionsupporting

confidence: 52%

“…tigrina as well (Fig . 1), which is more apparent when compared with the derived curve (dashed line) for a hyperbolic (Type I) response computed without the and 8 h data (see Claussen 1980 for analytical methodology) . Thermal acclimation is initially quite rapid in both species .…”

Section: Resultsmentioning

confidence: 93%

“…Thermal acclimation is initially quite rapid in both species . The half acclimation times ( 1 /2 ATs ; see Claussen 1977Claussen , 1980 for D . tigrina and D .…”

Section: Resultsmentioning

confidence: 99%

“…Tsukuda et al (1978) . These values are impressively high and exceed those of most crustaceans and amphibians (see Claussen 1977Claussen , 1980 . Both planarian species show an apparent overshoot (Type II) time course pattern (Figs .…”

Section: Discussionmentioning

confidence: 96%

“…We discarded the data for any individuals which failed to recover . (Claussen 1977(Claussen , 1980 excluding the and 8 h data . The correlation coefficient (r) associated with this curve is shown below and to the right of the dashed line .…”

Section: Methodsmentioning

confidence: 99%

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Thermal acclimation in the fresh water planarians, Dugesia tigrina and D. dorotocephala

Claussen

Walters

1982

Hydrobiologia

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The planarians Dugesia tigrina and D . dorotocephala show well developed resistance adaptation responses following transfer from 5 to 25 ° C or the reverse . Their rates of thermal acclimation are typical of most organisms, but the magnitudes of their responses are impressively large . Thermal acclimation in these two species is generally similar, although somewhat more rapid and perhaps more extensive in D. tigrina. Forward and reverse acclimation rates are similar and there is evidence of overshoot and undershoot time course patterns respectively. Our heat resistance data, although based on a different methodology (the CTM method, using loss of equilibrium as the end point criterion) agree well with published values for these triclads . The temperature tolerance and thermal acclimation responses of D . tigrina and D. dorotocephala correlate well with their apparent eurythermy and their widespread distributions .

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Section: Discussionsupporting

confidence: 52%

Section: Resultsmentioning

confidence: 93%

“…Thermal acclimation is initially quite rapid in both species . The half acclimation times ( 1 /2 ATs ; see Claussen 1977Claussen , 1980 for D . tigrina and D .…”

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 96%

Section: Methodsmentioning

confidence: 99%

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Thermal acclimation in the fresh water planarians, Dugesia tigrina and D. dorotocephala

Claussen

Walters

1982

Hydrobiologia

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The effect of thermal microenvironment in upper thermal tolerance plasticity in tropical tadpoles. Implications for vulnerability to climate warming

et al. 2022

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Current climate change is generating accelerated increase in extreme heat events and organismal plastic adjustments in upper thermal tolerances, (critical thermal maximum ‐CTmax) are recognized as the quicker mitigating mechanisms. However, current research casts doubt on the actual mitigating role of thermal acclimation to face heat impacts, due to its low magnitude and weak environmental signal. Here, we examined these drawbacks by first estimating maximum extent of thermal acclimation by examining known sources of variation affecting CTmax expression, such as daily thermal fluctuation and heating rates. Second, we examined whether the magnitude and pattern of CTmax plasticity is dependent of the thermal environment by comparing the acclimation responses of six species of tropical amphibian tadpoles inhabiting thermally contrasting open and shade habitats and, finally, estimating their warming tolerances (WT = CTmax – maximum temperatures) as estimator of heating risk. We found that plastic CTmax responses are improved in tadpoles exposed to fluctuating daily regimens. Slow heating rates implying longer duration assays determined a contrasting pattern in CTmax plastic expression, depending on species environment. Shade habitat species suffer a decline in CTmax whereas open habitat tadpoles greatly increase it, suggesting an adaptive differential ability of hot exposed species to quick hardening adjustments. Open habitat tadpoles although overall acclimate more than shade habitat species, cannot capitalize this beneficial increase in CTmax, because the maximum ambient temperatures are very close to their critical limits, and this increase may not be large enough to reduce acute heat stress under the ongoing global warming.

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Aspects of the thermal ecology of the rusty crayfish Orconectes rusticus (Girard)

Mundahl

Benton

1990

Oecologia

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Orconectes rusticus currently is undergoing an explosive range expansion in the midwestern U.S.A., but information on the potentially important effects of water temperature on the species' biology is lacking. The thermal ecology of O. rusticus in southwestern Ohio, U.S.A., was examined by determining 1) the effects of four water temperatures (16, 20, 25, and 29°C) on survival and growth of juveniles, 2) the responses of juveniles and adults to a thermal gradient (7-27° C), and 3) the thermal tolerances (critical thermal maximum, CTMax, and critical thermal minimum, CTMin) of free-living, field-acclimatized juveniles and adults on a biweekly basis throughout the summer. Month-long growth experiments predicted maximum growth rates of juveniles at water temperatures between 26 and 28°C, but greatest survival between 20 and 22° C. Laboratory-acclimated (22° C) adults and field-acclimatized (2.5° C) juveniles both had an acute preferred temperature of 22° C. CTMaxs and CTMins of juveniles were 0.5-2.6° C higher than those of adults throughout the summer, suggesting that juveniles were exposed to water temperatures 1.5-6.8° C warmer than those of adults. Juvenile and adult O. rusticus prefer habitats where water temperatures favor maximum survival, but they usually are not found together in the same habitat; adults apparently displace the juveniles into warmer habitats. Warmer temperatures can decrease survival of juveniles but improve their growth rates, leading to enhanced fecundity and competitive ability. The past and future success of O. rusticus in expanding its range may depend, in part, on the species ability to adjust to new thermal environments occupied by other species of crayfish.

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Thermal acclimation in the crayfish, Orconectes rusticus and O. virilis

Cited by 50 publications

References 27 publications

Thermal acclimation in the fresh water planarians, Dugesia tigrina and D. dorotocephala

Thermal acclimation in the fresh water planarians, Dugesia tigrina and D. dorotocephala

The effect of thermal microenvironment in upper thermal tolerance plasticity in tropical tadpoles. Implications for vulnerability to climate warming

Aspects of the thermal ecology of the rusty crayfish Orconectes rusticus (Girard)

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