Starvation physiology: Reviewing the different strategies animals use to survive a common challenge

McCue, Marshall D.

doi:10.1016/j.cbpa.2010.01.002

Cited by 648 publications

(533 citation statements)

References 311 publications

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“…Environmental disturbances, whether natural or anthropogenic, cause physiological alterations of individual organisms that allow them to reduce or avoid the impact of the stressors (Romero 2004;McCue 2010). Such physiological responses, however, may come at a cost and result in fitness trade-offs associated with reduced immune competence, delayed growth and maturity, and a shorter life span (Bonier et al 2009;Shalev et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Physiological Stress Responses in Amphibian Larvae to Multiple Stressors Reveal Marked Anthropogenic Effects even below Lethal Levels

Burraco

Gómez-Mestre

2016

Physiological and Biochemical Zoology

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Natural and anthropogenic disturbances cause profound alterations in organisms, inducing physiological adjustments to avoid, reduce, or remedy the impact of disturbances. In vertebrates, the stress response is regulated via neuroendocrine pathways, including the hypothalamic-pituitary-interrenal axis that regulates the secretion of glucocorticoids. Glucocorticoids have cascading effects on multiple physiological pathways, affecting the metabolic rate, reactive oxygen species production, or immune system. Determining the extent to which natural and anthropogenic environmental factors induce stress responses in vertebrates is of great importance in ecology and conservation biology. Here we study the physiological stress response in spadefoot toad tadpoles (Pelobates cultripes) against three levels of a series of natural and anthropogenic stressors common to many aquatic systems: salinity (0, 6, and 9 ppt), herbicide (0, 1, and 2 mg/L acid equivalent of glyphosate), water acidity (pH 4.5, 7.0, and 9.5), predators (absent, native, and invasive), and temperature (217, 257, and 297C). The physiological stress response was assessed examining corticosterone levels, standard metabolic rate, activity of antioxidant enzymes, oxidative cellular damage in lipids, and immunological status. We found that common stressors substantially altered the physiological state of tadpoles. In particular, salinity and herbicides cause dramatic physiological changes in tadpoles. Moreover, tadpoles reduced corticosterone levels in the presence of natural predators but did not do so against invasive predators, indicating a lack of innate recognition. Corticosterone and the antioxidant enzyme glutathione reductase were the most sensitive parameters to stress in this study. Anthropogenic perturbations of aquatic systems pose serious threats to larval amphibians even at nonlethal concentrations, judging from the marked physiological stress responses generated, and reveal the importance of incorporating physiological information onto conservation, ecological, and evolutionary studies.

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Section: Introductionmentioning

confidence: 99%

Physiological Stress Responses in Amphibian Larvae to Multiple Stressors Reveal Marked Anthropogenic Effects even below Lethal Levels

Burraco

Gómez-Mestre

2016

Physiological and Biochemical Zoology

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“…As reviewed by Navarro and Gutiérrez (1995) and McCue (2010), the majority of fishes may only tolerate several days or weeks of starvation, whereas some fishes such as European eel, Anguilla Anguilla, are reported to survive nearly four years of starvation (Boetius & Boetius 1985). Food availability can vary over the time of day or month (e.g.…”

Section: Introductionmentioning

confidence: 99%

Effect of starvation on some immunological and biochemical parameters in tinfoil barb (Barbonymus schwanenfeldii)

Eslamloo

Morshedi

Azodi

et al. 2016

Journal of Applied Animal Research

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In this study, the effect of short-term starvation (0, 1 and 2 weeks) on biochemical parameters and nonspecific immune response of tinfoil barb (Barbonymus schwanenfeldii) was investigated. Fish in three different groups were deprived of feed for 0 (control), 1 (S 1 ) and 2 (S 2 ) weeks, respectively. At the end of the experiment, blood samples were collected for biochemical and immunological analyses. The results indicated that plasma glucose, cholesterol and peroxidase levels and haemolytic complement activity were significantly lower in starved fish for 2 weeks than those in fed fish and in starved fish for 1 week. Plasma lysozyme activity significantly changed in different starvation periods in all treatment groups. However, no significant effect was observed on plasma antiprotease activity. There were significant differences between the control and the food-deprived groups in plasma triglyceride levels. Starvation increased plasma total protein, albumin and globulin in the deprived groups compared with the control group. The results of this study showed significant changes in nonspecific immune parameters, plasma glucose levels and other metabolites in this species after feed deprivation that are indicative of the relationship between starvation effects and the extension of starvation period. ARTICLE HISTORY

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“…Resource availability is a strong source of selection driving adaptive modification of metabolic rates within and among closely related species (Mueller and Diamond 2001;McCue 2010;Moiroux et al 2012). From an energetic point of view, fitness can be described as the conversion rate of energy into offspring (Brown et al 1993), which ultimately is limited first by the rate at which organisms can acquire energy from the environment and then by the rate at which they can allocate energy to reproduction (as opposed to maintenance or growth).…”

Section: Introductionmentioning

confidence: 99%

“…Second, organisms can reduce metabolic rate independently of body size, which changes the allometric relationship between metabolism and body size (Guppy and Withers 1999;Wang et al 2006;Burton et al 2011). It is important to note that these mechanisms are not mutually exclusive but may work in synchrony, such that focusing merely on body size or metabolic rates alone can lead to erroneous conclusions (McNab 1999(McNab , 2002Van Voorhies et al 2004;McCue 2010).…”

Section: Introductionmentioning

confidence: 99%

“…However, the evolution of increased metabolic rates in extreme environments is typically constrained by a reduced supply of resources required for metabolic expenditure (Waterman 1999(Waterman , 2001. While many studies have investigated immediate metabolic costs of exposure to physicochemical stressors and energy limitation (e.g., Haney and Nordlie 1997;Penttinen and Kukkonen 1998;Rose et al 2006;Wang et al 2006;McKenzie et al 2007;McCue 2010), it remains unclear how metabolic rates and metabolic rate plasticity evolve when populations adapt to diverse environmental stressors. Here, we explicitly tested for differences in body size and routine metabolic rate in the context of resource limitation in extremophile fish.…”

Section: Introductionmentioning

confidence: 99%

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Reduction of Energetic Demands through Modification of Body Size and Routine Metabolic Rates in Extremophile Fish

Passow¹,

Greenway²,

Arias‐Rodríguez³

et al. 2015

Physiological and Biochemical Zoology

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Variation in energy availability or maintenance costs in extreme environments can exert selection for efficient energy use, and reductions in organismal energy demand can be achieved in two ways: reducing body mass or metabolic suppression. Whether long-term exposure to extreme environmental conditions drives adaptive shifts in body mass or metabolic rates remains an open question. We studied body size variation and variation in routine metabolic rates in locally adapted populations of extremophile fish (Poecilia mexicana) living in toxic, hydrogen sulfide-rich springs and caves. We quantified size distributions and routine metabolic rates in wild-caught individuals from four habitat types. Compared with ancestral populations in nonsulfidic surface habitats, extremophile populations were characterized by significant reductions in body size. Despite elevated metabolic rates in cave fish, the body size reduction precipitated in significantly reduced energy demands in all extremophile populations. Laboratory experiments on common garden-raised fish indicated that elevated routine metabolic rates in cave fish likely have a genetic basis. The results of this study indicate that adaptation to extreme environments directly impacts energy metabolism, with fish living in cave and sulfide spring environments expending less energy overall during routine metabolism.

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Starvation physiology: Reviewing the different strategies animals use to survive a common challenge

Cited by 648 publications

References 311 publications

Physiological Stress Responses in Amphibian Larvae to Multiple Stressors Reveal Marked Anthropogenic Effects even below Lethal Levels

Physiological Stress Responses in Amphibian Larvae to Multiple Stressors Reveal Marked Anthropogenic Effects even below Lethal Levels

Effect of starvation on some immunological and biochemical parameters in tinfoil barb (Barbonymus schwanenfeldii)

Reduction of Energetic Demands through Modification of Body Size and Routine Metabolic Rates in Extremophile Fish

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