eprintid: 4901
rev_number: 44
eprint_status: archive
userid: 351
dir: disk0/00/00/49/01
datestamp: 2016-01-15 02:07:37
lastmod: 2021-08-27 17:15:39
status_changed: 2016-01-15 02:07:37
type: monograph
metadata_visibility: show
item_issues_count: 2
creators_name: Heino, M.
creators_name: Metz, J.A.J.
creators_name: Kaitala, V.
creators_id: 7602
creators_id: 7506
creators_orcid: 0000-0003-2928-3940
title: Evolution of Mixed Maturation Strategies in Semelparous Life-histories: the Crucial Role of Dimensionality of Feedback Environment [Updated 18 August 1998]
ispublished: pub
internal_subjects: iis_mod
internal_subjects: iis_pop
internal_subjects: iis_sys
divisions: prog_adn
abstract: We study the evolution of age-at-maturity in a semelparous life history with two age-classes. An individual may breed in the first year of its life and die, or delay breeding to the second year. In this setting a mixed strategy means that a fraction of the individual's offspring breed in the first possible breeding event, while the remaining fraction delay breeding. Current theory seems to imply that mixed strategies are not evolutionarily stable strategies (ESS) under a steady state population dynamical regime. We show that a two-dimensional feedback environment may allow the evolution of mixed age-at-maturity. Furthermore, different phenotypes need to perceive the environment differently. The biological reasoning behind these conditions is different resource usage or predation pressure between two age-classes. Thus, the conventional explanations for the occurrence of mixed strategies in  natural populations, environmental stochasticity or complex dynamics, are not needed.
date: 1996-11
date_type: published
publisher: WP-96-126
iiasapubid: WP-96-126
price: 10
creators_browse_id: 122
creators_browse_id: 206
full_text_status: public
monograph_type: working_paper
place_of_pub: IIASA, Laxenburg, Austria
pages: 25
coversheets_dirty: FALSE
fp7_type: info:eu-repo/semantics/book
citation:   Heino, M. <https://pure.iiasa.ac.at/view/iiasa/122.html> ORCID: https://orcid.org/0000-0003-2928-3940 <https://orcid.org/0000-0003-2928-3940>, Metz, J.A.J. <https://pure.iiasa.ac.at/view/iiasa/206.html>, & Kaitala, V.  (1996).  Evolution of Mixed Maturation Strategies in Semelparous Life-histories: the Crucial Role of Dimensionality of Feedback Environment [Updated 18 August 1998].   IIASA Working Paper. IIASA, Laxenburg, Austria: WP-96-126     
document_url: https://pure.iiasa.ac.at/id/eprint/4901/1/WP-96-126.pdf