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Radical Change: Temporal Patterns of Oxidative Stress During Social Ascent in a Dominance Hierarchy by Robert Fialkowski; Phillip Aufdemberge; Victoria Wright; Peter Dijkstra is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Radical Change: Temporal Patterns of Oxidative Stress During Social Ascent in a Dominance Hierarchy about?

Dominant individuals have priority access to mates and resources. However, high rank can be costly too, especially when it is maintained by intense agonistic behavior. Oxidative stress has been proposed as a potential cost of social dominance. However, social dominance hierarchies can be dynamic, and few studies have examined the cost of social dominance when males are changing status. We studied temporal changes in markers of oxidative stress during social ascent in the East African cichlid fish Astatotilapia burtoni. After removing the dominant male, males ascended from subordinate to dominant status. On the first day of social ascent, immediately after the dominant male removal, the newly dominant male showed lower levels of plasma total antioxidant capacity (TAC). However, we found that liver TAC and liver superoxide dismutase (SOD), an enzymatic antioxidant, were significantly upregulated on day 1 and 2 of social ascent, respectively. No temporal variation in nicotinamide adenine dinucleotide phosphate-oxidase (NADPH-oxidase) activity, blood DNA damage, and liver DNA damage was observed. By day 14, all markers of oxidative stress were similar to those observed in stable domina

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Author

Robert Fialkowski; Phillip Aufdemberge; Victoria Wright; Peter Dijkstra

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)