UNSPECIFIED (1999) Seasonal and genotypic influences on life cycle synchronisation: further insights from annual squid. In: International Conference on Individual-Based Approach in Ecology - Assumptions, Achievements and Prospects, MAY 27-31, 1996, MIKOLAJKI, POLAND.

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Abstract

We consider a simple individual-based model which incorporates a two stage growth response for squid hatchlings in continual exposure to seasonal fluctuations of temperature. In the first stage of growth an individual increases rapidly in size at a temperature-dependent rate. After a fixed period of time, an abrupt transition occurs to a temperature-independent growth rate: which is maintained for the rest of the lifespan. In exposure to seasonally fluctuating temperatures such a growth mechanism is shown to directly induce phenotypic variability. By assuming that an individual's developmental progress is related to the same phenotypic trait, we are able to consider the temporal dynamics generated. Stochastic simulations show that provided genotypic variability is low, synchronisation can be maintained only by recruitment to a single population occurring up to (at most) a few times of year. (C) 1999 Elsevier Science B.V. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QH Natural history > QH301 Biology
Journal or Publication Title:	ECOLOGICAL MODELLING
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0304-3800
Date:	15 February 1999
Volume:	115
Number:	2-3
Number of Pages:	15
Page Range:	pp. 149-163
Publication Status:	Published
Title of Event:	International Conference on Individual-Based Approach in Ecology - Assumptions, Achievements and Prospects
Location of Event:	MIKOLAJKI, POLAND
Date(s) of Event:	MAY 27-31, 1996
URI:	http://wrap.warwick.ac.uk/id/eprint/14830

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