Seasonal Variation in the Time Course of Thermal Acclimation in the Crayfish Orconectes rusticus

Abiotic factors affecting habitat selection by two invasive gammarids Dikerogammarus villosus and Pontogammarus robustoides

“…Extreme shifts in temperature are usually found in shallow, unsheltered bottoms often inhabited by P. robustoides (Wawrzyniak-Wydrowska & Gruszka, 2005;_ Zytkowicz et al, 2008), whereas D. villosus lives in deeper waters (Kley & Maier, 2005; own observations in the sampling area) and/or on stony bottoms (Kley et al, 2009;Boets et al, 2010) where temperature regimes may be more constant. The effect of season (independent of acclimation) on thermal behaviour has also been observed in crabs (Cuculescu et al, 1998) and crayfish (Layne et al, 1985), but not in an isopod Asellus aquaticus, varying its thermal behaviour only in response to acclimation temperature (Lagerspetz & Bowler, 1993), like D. villosus in our study.…”

Induction of rapid cold hardening by cooling at ecologically relevant rates in Drosophila melanogaster

“…4) evidences such an effect. As with longer term acclimation to low temperature, our data suggest that the rapid cold-hardening process could benefit an organism by lowering its CT min , thus prolonging its ability to seek out thermally buffered microhabitats, or evade predators (Layne et al, 1985).…”

“…For instance, when chilled to moderate temperatures, well above those which directly cause death, many organisms enter a state of cold torpor. At or below the temperature at which this occurs (the critical thermal minimum or CT min ), they are unable to seek refugia or food, or to avoid predation (Layne et al, 1985;Rome et al, 1992).…”

A comparative analysis of plasticity of thermal limits in porcelain crabs across latitudinal and intertidal zone clines

“…Functional analyses of the concomitant effects of thermal acclimation on both heat and cold tolerance have been made in many species (e.g., crabs [10], planarians [15], earthworms [16,17], flies [18], ticks [19], fish [20][21][22][23], crayfish [24], copepods [25]). However, few of these studies examined the relative effects of acclimation temperature on thermal tolerance in multiple species adapted to different thermal habitats.…”