Citation

Parvinen K. Evolutionary Ecology Research 2016; 17(6): 743-756.

Copyright

(Copyright © 2016)

DOI

unavailable

PMID

unavailable

Abstract

Question: How does the mechanistic underpinning of a discrete-time model affect the possibility for evolutionary suicide? Mathematical methods: Adaptive dynamics. Relevant theory on attractor families and bifurcations. Features of model: A discrete-time population model derived from a continuous-time resource-consumer model with processes of harvesting resource, mate finding, and egg production.

RESULTS: A population-level multiplicative parameter is affected both by the probability of egg survival and harvest effort. Higher survival probability is selected for, which can result in a period-doubling cascade to chaos, and in evolutionary suicide through a global bifurcation. Also, higher harvest effort is selected for, but it becomes a scaling factor for the model without qualitatively affecting its dynamics, and demographically stochastic extinction occurs.

CONCLUSION: Evolutionary predictions should be based on individual-level traits. © 2016 Kalle Parvinen.

Language: en

Keywords

Adaptive dynamics; Evolutionary suicide; Evolution to extinction; First-principles derivation; Mechanistic modelling