Temperature Relations of Ectotherms: A Speculative Review

Wieser, Wolfgang

doi:10.1007/978-3-642-65703-0_1

Cited by 54 publications

(22 citation statements)

References 109 publications

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“…In recognition of the fact that previous thermal history can influence metabolic responses to temperature (Bullock, 1955;Fromm and Johnson, 1955), most studies have acclimated the experimental animals to constant temperature in the laboratory prior to testing. The results from these procedures have revealed a variety of acclimatory patterns (see Prosser, 1973) from which few generaliza- (Wieser, 1973). Many authors have attempted to predict from such acclimatory data how their experimental species would respond to temperature in the field (Tashian and Ray, 1957;Dunlap, 1969Dunlap, , 1971Dunlap, , 1972Fitzpatrick et al, 1971 ;Packard, 1971 ;Fitzpatrick and Atebara, 1974).…”

Section: Introductionmentioning

confidence: 96%

Effect of constant and fluctuating temperatures on resting and active oxygen consumption of toads, Bufo boreas

Carey

1979

Oecologia

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The relations of standard and active rates of oxygen consumption to body temperature (T) were tested in montane Bufo b. boreas and lowland Bufo boreas halophilus acclimated to constant T of 10, 20, or 30° C or to a fluctuating cycle of 5-30° C. Standard metabolic rates (SMR) of boreas acclimated to 30° C and halophilus acclimated to 10° C show pronounced regions of thermal independence but all other standard and active metabolic rates of groups acclimated to other thermal regimes are thermally sensitive. The SMR of both subspecies acclimated to the 5-30° C cycle are more thermally sensitive than those of similar individuals acclimated to constant T. In cases where the relation between SMR and T is linear for both halophilus and boreas at the same acclimation temperature, the slope and Q of the relation for boreas are significantly higher than those of halophilus. Acclimation had little or no effect on the active metabolic rates of either subspecies. The relation between SMR and T of boreas maintained under field conditions (Carey, 1979) is matched only by those of individuals from the same population acclimated to 20° C.

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Section: Introductionmentioning

confidence: 96%

Effect of constant and fluctuating temperatures on resting and active oxygen consumption of toads, Bufo boreas

Carey

1979

Oecologia

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“…The prevailing temperatures will often influence energy gain and expenditure of these animals, because temperature is a major extrinsic factor affecting the physiological functioning of poikilothermic organisms (Widdows 'Corresponding author. E-mail: john.lucas@jcu.edu.au & Bayne 1971, Wieser 1973, Newel1 & Branch 1980, Bayne & Newel1 1983. These effects of temperature on the physiology and energetics of suspension-feeding bivalves, especially those of comn~ercial importance such as mussels, oysters and clams, have been well documented.…”

Section: Introductionmentioning

confidence: 99%

Comparative effects of temperature on suspension feeding and energy budgets of the pearl oysters Pinctada margaritifera and P. maxima

Yukihira¹,

Lucas²,

Klumpp³

2000

Mar. Ecol. Prog. Ser.

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This study assessed the effects of seasonal temperatures on suspension feeding, related physiological parameters and energy budgets in 2 pearl oysters, Pinctada margantifera and P. maxima. Pearl oysters that were acclimatised at approximately 19, 23, 28 and 32°C in the field were tested in the laboratory at these temperatures Clearance rate (CR), absorption efficiency (ae), absorbed energy (AE), respired energy (RE), excreted energy (EE) and the value of (AE -RE) were significantly affected by temperature. They usually Increased with increasing temperature. ae, RE, EE and the value of (AE -RE) differed significantly between the pearl oyster species. P. margaritifera had a significantly higher CR than P. maxima at 19°C. P maxima had higher a e than P. margaritifera at 28 and 32°C. As a result, P. margantifera had greater AE than P. maxima at lg°C, but the latter species had greater AE at 32°C. Temperature significantly affected the RE of P. margaritifera over a wider temperature range (19 to 32°C) than P, maxima (19 to 23°C). However, interspecific Mferences in RE were only significant at 32°C. P maxima had significantly higher EE at 32'C than P. margaritifera, although this energy accounted for a very small portion of AE (<5 %). P. maxima exceeded P. margaritifera in Scope for Growth [SFG = (AE -RE) -EE] at 32"C, but the latter species had greater SFG at 19OC. These results agree with observations of the occurrence of P. margaritifera at higher latitudes and lower temperature habitats. The temperature effects on suspension feeding, related physiological parameters and SFG indicate that there will be marked seasonal variations in growth in both species in environments where water temperatures vary seasonally. In bioenergetic terms, the optimum temperature ranges for these pearl oysters are approximately 23 to 28 and 23 to 32°C for P. margaritifera and P. maxima, respectively.

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“…Paradoxical acclimation of respiration rate has been rarely reported for insects except for SOMME ( 1968) and BUFFINGTON (1969). WIESER (1973) suggested that at least some ectotherms are best considered as 'multistable systems' which respond to environmental changes in ways which are adaptive with respect to the prevailing or 'anticipated' conditions.…”

Section: Respirationmentioning

confidence: 99%

Physiological adaptations of coccinellidae to supranivean and subnivean hibernacula

Lee

1980

Journal of Insect Physiology

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Abstrae--The supranivean hibernaculum of Hippodamiu conpergenens allows exposure of this species to fluctuating temperatures and humidities. Correspondingly. H. convergens is resistant to desiccation. maintains cold-hardiness independent of temperature, and responds to warm acclimation with a reduced respiration rate. Beneath the snow, Coleomegilla maculata is maintained at a constant temperature and high humidity. Warm acclimation in this species results in a loss of cold-hardiness and an increase in respiration rate. This response suggests a transition from an energy-conserving metabolic state associated with overwintering to one of energy expenditure as the beetles prepare for summer feeding and reproduction.

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Temperature Relations of Ectotherms: A Speculative Review

Cited by 54 publications

References 109 publications

Effect of constant and fluctuating temperatures on resting and active oxygen consumption of toads, Bufo boreas

Effect of constant and fluctuating temperatures on resting and active oxygen consumption of toads, Bufo boreas

Comparative effects of temperature on suspension feeding and energy budgets of the pearl oysters Pinctada margaritifera and P. maxima

Physiological adaptations of coccinellidae to supranivean and subnivean hibernacula

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