Adaptive correlations between seed size and germination time

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Geritz , S , Gyllenberg , M & Toivonen , J 2018 , ' Adaptive correlations between seed size and germination time ' , Journal of mathematical biology , vol. 77 , no. 6-7 , pp. 1943-1968 . https://doi.org/10.1007/s00285-018-1232-z

Title: Adaptive correlations between seed size and germination time
Author: Geritz, S.; Gyllenberg, M.; Toivonen, J.
Contributor: University of Helsinki, Department of Mathematics and Statistics
University of Helsinki, Department of Mathematics and Statistics
University of Helsinki, University of Jyväskylä
Date: 2018-12
Language: eng
Number of pages: 26
Belongs to series: Journal of mathematical biology
ISSN: 0303-6812
URI: http://hdl.handle.net/10138/301095
Abstract: We present a model for the coevolution of seed size and germination time within a season when both affect the ability of the seedlings to compete for space. We show that even in the absence of a morphological or physiological constraint between the two traits, a correlation between seed size and germination time is nevertheless likely to evolve. This raises the more general question to what extent a correlation between any two traits should be considered as an a priori constraint or as an evolved means (or instrument) to actually implement a beneficial combination of traits. We derive sufficient conditions for the existence of a positive or a negative correlation. We develop a toy model for seed and seedling survival and seedling growth and use this to illustrate in practice how to determine correlations between seed size and germination time.
Subject: Plant evolution
Adaptive syndrome
Game theory
EVOLUTIONARY ECOLOGY
FITNESS
MASS
111 Mathematics
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