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Co-existence of multiple trade-off currencies shapes evolutionary outcomes

Cohen, Alan A.; Isaksson, Caroline LU and Salguero-Gómez, Roberto (2017) In PLoS ONE 12(12).
Abstract

Evolutionary studies often assume that energy is the primary resource (i.e. “currency”) at the heart of the survival-reproduction trade-off, despite recent evidence to the contrary. The evolutionary consequences of having a single trade-off currency versus multiple competing currencies are unknown. Using simulations, we modeled the evolution of either a single physiological currency between reproduction and survival, or of multiple such currencies. For a wide array of model specifications varying functional forms and strengths of the tradeoffs, we show that the presence of multiple currencies (e.g. nutrients, time) generally results in the evolution of higher lifetime reproductive success through partial circumvention of such... (More)

Evolutionary studies often assume that energy is the primary resource (i.e. “currency”) at the heart of the survival-reproduction trade-off, despite recent evidence to the contrary. The evolutionary consequences of having a single trade-off currency versus multiple competing currencies are unknown. Using simulations, we modeled the evolution of either a single physiological currency between reproduction and survival, or of multiple such currencies. For a wide array of model specifications varying functional forms and strengths of the tradeoffs, we show that the presence of multiple currencies (e.g. nutrients, time) generally results in the evolution of higher lifetime reproductive success through partial circumvention of such trade-offs. Evolution of the underlying physiology is also more highly contingent with multiple currencies. These results challenge the paradigm of a single survival-reproduction trade-off as central to life history evolution, suggesting greater roles for physiological constraints and contingency, and implying potential selection for evolution of multiple trade-off currencies.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
PLoS ONE
volume
12
issue
12
publisher
Public Library of Science
external identifiers
  • scopus:85037543609
  • wos:000417337800076
ISSN
1932-6203
DOI
10.1371/journal.pone.0189124
language
English
LU publication?
yes
id
822cb5fc-18c9-48d5-aff0-5529a1642425
date added to LUP
2017-12-21 12:49:49
date last changed
2018-07-22 04:31:09
@article{822cb5fc-18c9-48d5-aff0-5529a1642425,
  abstract     = {<p>Evolutionary studies often assume that energy is the primary resource (i.e. “currency”) at the heart of the survival-reproduction trade-off, despite recent evidence to the contrary. The evolutionary consequences of having a single trade-off currency versus multiple competing currencies are unknown. Using simulations, we modeled the evolution of either a single physiological currency between reproduction and survival, or of multiple such currencies. For a wide array of model specifications varying functional forms and strengths of the tradeoffs, we show that the presence of multiple currencies (e.g. nutrients, time) generally results in the evolution of higher lifetime reproductive success through partial circumvention of such trade-offs. Evolution of the underlying physiology is also more highly contingent with multiple currencies. These results challenge the paradigm of a single survival-reproduction trade-off as central to life history evolution, suggesting greater roles for physiological constraints and contingency, and implying potential selection for evolution of multiple trade-off currencies.</p>},
  articleno    = {e0189124},
  author       = {Cohen, Alan A. and Isaksson, Caroline and Salguero-Gómez, Roberto},
  issn         = {1932-6203},
  language     = {eng},
  month        = {12},
  number       = {12},
  publisher    = {Public Library of Science},
  series       = {PLoS ONE},
  title        = {Co-existence of multiple trade-off currencies shapes evolutionary outcomes},
  url          = {http://dx.doi.org/10.1371/journal.pone.0189124},
  volume       = {12},
  year         = {2017},
}