Past energy allocation overwhelms current energy stresses in determining energy allocation trade-offs.

Autor: Griffen BD; Department of Biology Brigham Young University Provo Utah USA., Bolander M; Department of Biology Brigham Young University Provo Utah USA., Blakeslee A; Department of Biology East Carolina University Greenville North Carolina USA., Crane LC; Wells National Estuarine Research Reserve Wells Maine USA., Repetto MF; Department of Biology Temple University Philadelphia Pennsylvania USA., Tepolt CK; Department of Biology Woods Hole Oceanographic Institution Woods Hole Massachusetts USA., Toscano BJ; Department of Biology Trinity College Hartford Connecticut USA.
Jazyk: angličtina
Zdroj: Ecology and evolution [Ecol Evol] 2023 Aug 08; Vol. 13 (8), pp. e10402. Date of Electronic Publication: 2023 Aug 08 (Print Publication: 2023).
DOI: 10.1002/ece3.10402
Abstrakt: Regeneration of lost appendages is a gradual process in many species, spreading energetic costs of regeneration through time. Energy allocated to the regeneration of lost appendages cannot be used for other purposes and, therefore, commonly elicits energetic trade-offs in biological processes. We used limb loss in the Asian shore crab Hemigrapsus sanguineus to compare the strength of energetic trade-offs resulting from historic limb losses that have been partially regenerated versus current injuries that have not yet been repaired. Consistent with previous studies, we show that limb loss and regeneration results in trade-offs that reduce reproduction, energy storage, and growth. As may be expected, we show that trade-offs in these metrics from historic limb losses far outweigh trade-offs from current limb losses, and correlate directly with the degree of historic limb loss that has been regenerated. As regenerating limbs get closer to their normal size, these historical injuries get harder to detect, despite the continued allocation of additional resources to limb development. Our results demonstrate the importance of and a method for identifying historic appendage losses and of quantifying the amount of regeneration that has already occurred, as opposed to assessing only current injury, to accurately assess the strength of energetic trade-offs in animals recovering from nonlethal injury.
Competing Interests: The authors have no conflicts of interest to declare.
(© 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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