Energy budgets of latitudinally separated Scottolana canadensis (Copepoda: Harpacticoida)

Lonsdale, D; Levinton, Jeffrey S.

doi:10.4319/lo.1989.34.2.0324

Cited by 20 publications

(5 citation statements)

References 17 publications

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“…The maintenance of relatively high rates of metabolism in summer-acclimatized G. locusta and G. d. duebeni across a range of latitudes may only be possible because of a continued availability of food to fuel the high rates of energy consumption (Lonsdale and Levinton 1989). In the low intertidal G. locusta, high energy turnover may be related to its warm-water ancestry.…”

Section: Discussionmentioning

confidence: 99%

“…Despite these drawbacks, two general patterns have emerged. Intraspecific comparisons indicate that metabolic compensation can occur between populations, resulting in similar metabolic rates in species spread across latitudes despite differences in habitat temperature (Fox and Wingfield 1937;Vernberg 1962;Mangum 1963;Lonsdale and Levinton 1989;Sommer and Pörtner 2002). In sharp contrast, many antarctic marine invertebrates do not compensate their metabolic rates in the extreme cold and do not conform to the concept of metabolic cold adaptation (Clarke 1991(Clarke , 1993(Clarke , 2003Pörtner et al 2007).…”

Section: Introductionmentioning

confidence: 93%

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Congeneric Amphipods Show Differing Abilities to Maintain Metabolic Rates with Latitude

Rastrick

Whiteley

2011

Physiological and Biochemical Zoology

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Metabolic variability across latitudinal populations of gammarid amphipods was examined in the summer by determining whole-animal rates of oxygen uptake (M(o)₂) in four species with overlapping distribution patterns in the northeast Atlantic and Arctic oceans. Comparisons were made between an arctic/boreal species, Gammarus setosus, a subarctic/boreal species, Gammarus oceanicus, a boreal/temperate species, Gammarus duebeni duebeni, and a temperate species, Gammarus locusta. Measurements included acclimatized M(o)₂ in all four species and M(o)₂ after acclimation to 10°C in two populations of G. oceanicus and G. locusta. In G. oceanicus, acclimatized M(o)₂ declined with latitude (13° to 5°C) so that metabolic rates were lower in subarctic (79°N) relative to temperate (58°N) populations and similar to the values in G. setosus at 79°N. Consequently, there was no evidence for metabolic rate compensation in the colder-water, high-latitude populations in the summer. Further examination of the specific effects of temperature revealed similarities in M(o)₂ between populations of G. oceanicus acclimated at 10°C and similarities in thermal sensitivity (Q(10)) and activation energies (E(a)) on exposure to acute temperature change. In sharp contrast, there was no variation in summer acclimatized M(o)₂ with latitude in either G. d. duebeni between 48° and 70°N or G. locusta between 38° and 53°N. Instead, the two species maintained relatively high metabolic rates across latitudes, which were associated in G. locusta with differences in M(o)₂ and with Q(10) and E(a) values in amphipods acclimated at 10°C. The ability to compensate metabolic rate with latitude in the summer suggests greater metabolic flexibility, which predicts a greater capacity for survival during climate change of the temperate/boreal over the subarctic and arctic gammarid species.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Congeneric Amphipods Show Differing Abilities to Maintain Metabolic Rates with Latitude

Rastrick

Whiteley

2011

Physiological and Biochemical Zoology

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“…This cold acclimation, or latitudinal compensation hypothesis, has attracted significant research into this singular pattern of metabolic rate and its mechanisms and evolutionary implications (Sommer et al 1997;Dittman 2003). Many different physiological functions can be responsible for temperature-dependent growth rate differentiation, including duration of feeding activity, metabolic rate, digestive efficiency, allocation of resources to growth versus reproduction (Hochachka & Somero 1973;Prosser 1986;Lonsdale & Levinton 1989;Present & Conover 1992). Very few studies have tested the metabolic cold adaptation hypothesis, considering the oxygen consumption of marine invertebrate populations of a widely distributed species in a temperate zone (more than 2000 km) where noticeable environmental gradients exist.…”

Section: Geographic Variation In Metabolismmentioning

confidence: 99%

Latitudinal variation in the aerial/aquatic ratio of oxygen consumption of a supratidal high rocky‐shore crab

et al. 2010

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The colonisation of the terrestrial environment by crustaceans is more apparent in tropical latitudes because of the high diversity of semi‐terrestrial and terrestrial crabs. However, in temperate regions there are also great numbers of crustaceans that inhabit ecological niches at the water–air interface. Grapsidae crabs (Decopoda) are especially important in studies of water‐to‐land transition as the family contains species occupying the intertidal and adjacent regions. A way to evaluate the ability of intertidal invertebrates to breathe air is to measure the aerial/aquatic oxygen consumption ratio. The objective of this study was to test the effect of thermal variation on the aquatic and aerial metabolism. We selected as study model the decopoda crab Cyclograpsus cinereus Dana and utilised five populations of the species spread over 2000 km along the Chilean coast. To determine the compensation capacity in respiration with respect to latitude, we evaluated metabolic rate at the same temperature in a common garden design in the laboratory, to examine the extent to which variation in crab physiology is environmentally determined. Whereas in our study, mb (body mass) varied significantly with latitude, the difference in mass‐independent metabolism both in air and water persisted, indicating that observed differences in MR (Metabolic Rate) were not an effect of differences in body size. We demonstrated that C. cinereus is able to breath oxygen from air and water as expected for an amphibious crab. Almost all the studied populations of C. cinereus show a aerial/aquatic metabolism ratio near 1. The pattern found indicates an increase in metabolic rate, both aerial and aquatic, in low latitudes and therefore does not support the latitudinal compensation hypothesis for temperate habitats. Finally, these kinds of studies are required to make the necessary link between ecological physiology and macroecology and to help develop a global understanding of organismal function in marine systems.

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“…These include duration of feeding activity, digestive efficiency, allocation of resources to growth vs reproduction and others (Hochachka 1973;Prosser 1986;Lonsdale & Levinton 1989;Present & Conover 1992). When testing for genetically based physiological differences between populations it is important to use groups of animals that have been raised in a common environment (Ament 1979;Knaub & Eversole 1988;Garland & Adolph 1991).…”

Section: Introductionmentioning

confidence: 99%

Latitudinal compensation in oyster ciliary activity

Dittman

1997

Functional Ecology

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Summary 1.Theories of latitudinal compensation predict that individuals living in colder temperature regimes should physiologically compensate for the slowing of standard physiological rates, owing to the relatively low temperature of their local environments, by increasing their metabolic rate in colder water temperatures relative to individuals living in warmer water temperature regimes.2. This hypothesis was tested with oyster strains originally from geographically separated populations that were raised in a common environment for seven generations. The physiological parameter measured was ciliary activity across a temperature gradient. 3. Support for the latitudinal compensation hypothesis was found: the strain originally from the colder temperature regime had more active cilia at lower experimental temperatures than individuals originally from the warmer temperature regime. Ciliary activity of the more northern Long Island Sound oysters was significantly greater than activity in the more southern Delaware Bay oysters at temperatures of -1, 2 and 6°C. 4. These results suggest that there is genetically based physiological differentiation between these populations of oysters consistent with the latitudinal compensation for local temperature regime.

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Energy budgets of latitudinally separated Scottolana canadensis (Copepoda: Harpacticoida)

Cited by 20 publications

References 17 publications

Congeneric Amphipods Show Differing Abilities to Maintain Metabolic Rates with Latitude

Congeneric Amphipods Show Differing Abilities to Maintain Metabolic Rates with Latitude

Latitudinal variation in the aerial/aquatic ratio of oxygen consumption of a supratidal high rocky‐shore crab

Latitudinal compensation in oyster ciliary activity

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