Bet-hedging as an evolutionary game: the trade-off between egg size and number.
Olofsson, Helen ; Ripa, Jörgen LU
and Jonzén, Niclas
LU
(2009)
In Royal Society of London. Proceedings B. Biological Sciences
276.
p.2963-2969
- Abstract
- Bet-hedging theory addresses how individuals should optimize fitness in varying and unpredictable environments by sacrificing mean fitness to decrease variation in fitness. So far, three main bet-hedging strategies have been described: conservative bet-hedging (play it safe), diversified bet-hedging (don't put all eggs in one basket) and adaptive coin flipping (choose a strategy at random from a fixed distribution). Within this context, we analyse the trade-off between many small eggs (or seeds) and few large, given an unpredictable environment. Our model is an extension of previous models and allows for any combination of the bet-hedging strategies mentioned above. In our individual-based model (accounting for both ecological and... (More)
- Bet-hedging theory addresses how individuals should optimize fitness in varying and unpredictable environments by sacrificing mean fitness to decrease variation in fitness. So far, three main bet-hedging strategies have been described: conservative bet-hedging (play it safe), diversified bet-hedging (don't put all eggs in one basket) and adaptive coin flipping (choose a strategy at random from a fixed distribution). Within this context, we analyse the trade-off between many small eggs (or seeds) and few large, given an unpredictable environment. Our model is an extension of previous models and allows for any combination of the bet-hedging strategies mentioned above. In our individual-based model (accounting for both ecological and evolutionary forces), the optimal bet-hedging strategy is a combination of conservative and diversified bet-hedging and adaptive coin flipping, which means a variation in egg size both within clutches and between years. Hence, we show how phenotypic variation within a population, often assumed to be due to non-adaptive variation, instead can be the result of females having this mixed strategy. Our results provide a new perspective on bet-hedging and stress the importance of extreme events in life history evolution. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1411946
- author
- Olofsson, Helen
; Ripa, Jörgen
LU
and Jonzén, Niclas
LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Royal Society of London. Proceedings B. Biological Sciences
- volume
- 276
- pages
- 2963 - 2969
- publisher
- Royal Society Publishing
- external identifiers
-
- wos:000267881500013
- scopus:68249094616
- pmid:19474039
- ISSN
- 1471-2954
- DOI
- 10.1098/rspb.2009.0500
- language
- English
- LU publication?
- yes
- id
- f8613e57-249b-46c0-9411-719a6da35f22 (old id 1411946)
- date added to LUP
- 2016-04-01 13:06:01
- date last changed
- 2025-04-04 15:18:52
@article{f8613e57-249b-46c0-9411-719a6da35f22,
abstract = {{Bet-hedging theory addresses how individuals should optimize fitness in varying and unpredictable environments by sacrificing mean fitness to decrease variation in fitness. So far, three main bet-hedging strategies have been described: conservative bet-hedging (play it safe), diversified bet-hedging (don't put all eggs in one basket) and adaptive coin flipping (choose a strategy at random from a fixed distribution). Within this context, we analyse the trade-off between many small eggs (or seeds) and few large, given an unpredictable environment. Our model is an extension of previous models and allows for any combination of the bet-hedging strategies mentioned above. In our individual-based model (accounting for both ecological and evolutionary forces), the optimal bet-hedging strategy is a combination of conservative and diversified bet-hedging and adaptive coin flipping, which means a variation in egg size both within clutches and between years. Hence, we show how phenotypic variation within a population, often assumed to be due to non-adaptive variation, instead can be the result of females having this mixed strategy. Our results provide a new perspective on bet-hedging and stress the importance of extreme events in life history evolution.}},
author = {{Olofsson, Helen and Ripa, Jörgen and Jonzén, Niclas}},
issn = {{1471-2954}},
language = {{eng}},
pages = {{2963--2969}},
publisher = {{Royal Society Publishing}},
series = {{Royal Society of London. Proceedings B. Biological Sciences}},
title = {{Bet-hedging as an evolutionary game: the trade-off between egg size and number.}},
url = {{http://dx.doi.org/10.1098/rspb.2009.0500}},
doi = {{10.1098/rspb.2009.0500}},
volume = {{276}},
year = {{2009}},
}