Early Life‐History Effects, Oxidative Stress, and the Evolution and Expression of Animal Signals

Royle, Nick J.; Orledge, Josephine M.; Blount, Jonathan D.

doi:10.1002/9781118966624.ch2

Cited by 5 publications

(5 citation statements)

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“…Even if a clear relationship between song and energy expenditure would exist, a high metabolic rate does not necessarily equate oxidative stress (Speakman et al, 2015). This is because mitochondrial function during ATP production can vary greatly both amongand within-individuals, affecting the relationship between energy expenditure and oxidative stress levels such that ROS production can be high at times of lowest energy expenditure (Selman et al, 2012;Royle et al, 2015;Salin et al, 2015;Speakman et al, 2015).…”

Section: Oxidative Status and Song Activitymentioning

confidence: 99%

“…The first level is represented by enzymatic antioxidants (mainly glutathione peroxidase and superoxide dismutase), which have the role of detoxifying the organism from ROS before they can damage molecules such as proteins, lipids, or DNA. Their upregulation implies that cells are experiencing an increase in ROS and that they are trying to cope with it (Costantini et al, 2011b;Royle et al, 2015). As an example, the muscle fibers that are activated to produce song can upregulate the concentration of antioxidant enzymes to counteract increased intra-cellular production of ROS (Powers and Jackson, 2008).…”

Section: Choosing the Right Parameters To Describe Oxidative Statusmentioning

confidence: 99%

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Honest Signaling and Oxidative Stress: The Special Case of Avian Acoustic Communication

2016

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Much research on animal communication has addressed how costs or constraints determined by the oxidative status of an individual can assure the honesty of visual signals, such as sexually selected color ornaments. However, acoustic communication has been largely overlooked in this respect. Here, we describe the few available studies that have considered the role of oxidative status in mediating vocal behavior in adult and nestling birds. Further, we discuss the theoretical principles of how the honesty of avian acoustic signals may be maintained by an organism's oxidative status. We here distinguish between studies that considered songs and begging calls as indicators of oxidative status and studies where vocalizations were assumed to be the source of oxidative costs. We outline experimental and methodological issues related to the study of bird vocalizations and oxidative stress and describe opportunities for future work in this field of research. Investigating the interactions between acoustic signals and redox state may help address some unresolved questions in avian vocalization, thereby increasing our understanding of the evolutionary pressures shaping animal communication. Finally, we argue that it will be important to extend this line of research beyond birds and include other taxa as well.

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Section: Oxidative Status and Song Activitymentioning

confidence: 99%

Section: Choosing the Right Parameters To Describe Oxidative Statusmentioning

confidence: 99%

Honest Signaling and Oxidative Stress: The Special Case of Avian Acoustic Communication

2016

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“…via gametes/embryos/incubation vs. those linked to nestling care), which could favor a stronger transgenerational impact. Moreover, it is often assumed that the earlier an individual's development is disturbed, the stronger are the effects (Royle et al 2015). We could have also considered sex-specific effects on the offspring, which should theoretically depend on the variation in the reproductive value of each sex (e.g.…”

Section: Introductionmentioning

confidence: 99%

Oxidative Stress Experienced during Early Development Influences the Offspring Phenotype

Romero-Haro

Alonso‐Álvarez

2020

The American Naturalist

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Oxidative stress (OS) experienced early in life can affect an individual's phenotype. However, its consequences for the next generation remain largely unexplored. We manipulated the OS level endured by zebra finches (Taeniopygia guttata) during their development by transitorily inhibiting the synthesis of the key antioxidant glutathione ('early-high-OS'). The offspring of these birds and control parents were cross-fostered at hatching to enlarge or reduce its brood size.Independently of parents' early-life OS levels, the chicks raised in enlarged broods showed lower erythrocyte glutathione levels, revealing glutathione sensitivity to environmental conditions. Control ("early-low-OS") biological mothers produced females, not males, that attained a higher body mass when raised in a benign environment (i.e. the reduced brood). In contrast, biological mothers exposed to early-life OS produced heavier males, not females, when allocated in reduced broods. Early-life OS also affected the parental rearing capacity because 12d-old nestlings raised by a foster pair with both early-high-OS members grew shorter legs (tarsus) than chicks from other groups. The results indicate that environmental conditions during development can affect early glutathione levels, which may, in turn, influence the next generation through both pre-and postnatal parental effects. The results also demonstrate that early-life OS can constrain the offspring phenotype.

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“…We caution that this result refers to the stress level differences between treatment and control groups applied in our experiment, which may have been sufficient to modify growth rates but not adult trait expression. Nonetheless, numerous examples attest to the effects of early‐life experiences on adult phenotypes (Royle et al., 2015 ), including the size of color patches displayed on the body (Ruell et al., 2013 ; Walker et al., 2013 ; Wilson et al., 2019 ). Remarkably, even though the size of the orange area on the body of guppies has been shown to be highly heritable in several studies (Brooks & Endler, 2001 ; Houde, 1992 ; Sato & Kawata, 2020 ), the trait responded rapidly to food restrictions administered to adult male guppies (Cattelan et al., 2020 ; Devigili et al., 2013 ), as well as to the exposure to predator cues and to variation in food supply during rearing (Ruell et al., 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Family resemblance in color‐patch size is not affected by stress experience in a cichlid fish

Ziegelbecker,

Sefc

2024

Ecology and Evolution

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Animal body coloration is often linked to social dominance and mating success. This is because it can carry information on an animal's body condition and competitive ability by reflecting the genetic quality of individuals or by responding to their current or past living conditions. The present study investigates genetic and environmental effects on a conspicuous color pattern of the cichlid fish Tropheus sp. black “Ikola,” in which the size of a carotenoid‐based yellow area on the body co‐varies with social dominance. To examine environmental plasticity of the color pattern, we tested for effects of early‐life stress, induced by reduced feeding of juveniles prior to color pattern formation, as well as effects of a stress treatment administered to fully colored adult fish. None of the stress treatments affected the color pattern as quantified by the width of the yellow bar. However, offspring bar width was correlated to parental values in mid‐parent‐mid‐offspring regression analyses, and animal models estimated significant additive genetic effects on bar width, indicating heritability of the trait. Depending on the random effects structure of the animal models (i.e., whether including or excluding maternal and brood effects), narrow‐sense heritability estimates for bar width ranged between 0.2 and 0.8, with the strongest statistical support for the highest estimate. In each of the alternative models, a large proportion of the total variance in bar width was explained by the included random effects, suggesting that bar width is strongly determined by genetic factors or shared maternal and brood environments, with limited scope for environmental influences later in life.

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Early Life‐History Effects, Oxidative Stress, and the Evolution and Expression of Animal Signals

Cited by 5 publications

References 173 publications

Honest Signaling and Oxidative Stress: The Special Case of Avian Acoustic Communication

Honest Signaling and Oxidative Stress: The Special Case of Avian Acoustic Communication

Oxidative Stress Experienced during Early Development Influences the Offspring Phenotype

Family resemblance in color‐patch size is not affected by stress experience in a cichlid fish

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