The synchronized and intermittent reproduction of forest trees is mediated by the Moran effect, only in association with pollen coupling

Akiko Satake, Yoh Iwasa

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

1 Coupled map models for the dynamics of individuals' energy reserves have shown that large between-year fluctuation in tree seed crops can occur in a constant environment and that reproduction can be synchronized over the whole forest if fruit production is limited by the availability of outcross pollen. 2 In this paper we examine the effects of the environmental fluctuation experienced by different individuals. The reactive changes in annual productivity and the reproductive threshold are accounted for by an additional term in the energy reserve dynamics. 3 If individuals show chaotic seed production, strongly correlated environmental fluctuations (the Moran effect) failed to produce a high positive correlation in seed production across the forest in the absence of pollen limitation. Regardless of the high nonlinearity of resource dynamics, a large correlation was maintained when both pollen limitation and correlated environmental fluctuation occurred. 4 We derived a regression formula for the degree of synchronization when pollen coupling occurred only on a local scale. The correlation coefficient of seed crops between distantly located individuals decreases with the resource depletion coefficient, but it increases with the strength of pollen limitation, the standard deviation of environmental noise, and the correlation of environmental noise between different trees.

Original languageEnglish
Pages (from-to)830-838
Number of pages9
JournalJournal of Ecology
Volume90
Issue number5
DOIs
Publication statusPublished - Oct 1 2002

Fingerprint

pollen limitation
forest trees
pollen
seed productivity
seed production
seed
resource depletion
crop
fruit production
seed trees
nonlinearity
energy
crops
dynamic models
fruiting
productivity
effect
resource
seeds
environmental noise

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science

Cite this

The synchronized and intermittent reproduction of forest trees is mediated by the Moran effect, only in association with pollen coupling. / Satake, Akiko; Iwasa, Yoh.

In: Journal of Ecology, Vol. 90, No. 5, 01.10.2002, p. 830-838.

Research output: Contribution to journalArticle

@article{abdd595b453442f78905cbe7fd37f6de,
title = "The synchronized and intermittent reproduction of forest trees is mediated by the Moran effect, only in association with pollen coupling",
abstract = "1 Coupled map models for the dynamics of individuals' energy reserves have shown that large between-year fluctuation in tree seed crops can occur in a constant environment and that reproduction can be synchronized over the whole forest if fruit production is limited by the availability of outcross pollen. 2 In this paper we examine the effects of the environmental fluctuation experienced by different individuals. The reactive changes in annual productivity and the reproductive threshold are accounted for by an additional term in the energy reserve dynamics. 3 If individuals show chaotic seed production, strongly correlated environmental fluctuations (the Moran effect) failed to produce a high positive correlation in seed production across the forest in the absence of pollen limitation. Regardless of the high nonlinearity of resource dynamics, a large correlation was maintained when both pollen limitation and correlated environmental fluctuation occurred. 4 We derived a regression formula for the degree of synchronization when pollen coupling occurred only on a local scale. The correlation coefficient of seed crops between distantly located individuals decreases with the resource depletion coefficient, but it increases with the strength of pollen limitation, the standard deviation of environmental noise, and the correlation of environmental noise between different trees.",
author = "Akiko Satake and Yoh Iwasa",
year = "2002",
month = "10",
day = "1",
doi = "10.1046/j.1365-2745.2002.00721.x",
language = "English",
volume = "90",
pages = "830--838",
journal = "Journal of Ecology",
issn = "0022-0477",
publisher = "Wiley-Blackwell",
number = "5",

}

TY - JOUR

T1 - The synchronized and intermittent reproduction of forest trees is mediated by the Moran effect, only in association with pollen coupling

AU - Satake, Akiko

AU - Iwasa, Yoh

PY - 2002/10/1

Y1 - 2002/10/1

N2 - 1 Coupled map models for the dynamics of individuals' energy reserves have shown that large between-year fluctuation in tree seed crops can occur in a constant environment and that reproduction can be synchronized over the whole forest if fruit production is limited by the availability of outcross pollen. 2 In this paper we examine the effects of the environmental fluctuation experienced by different individuals. The reactive changes in annual productivity and the reproductive threshold are accounted for by an additional term in the energy reserve dynamics. 3 If individuals show chaotic seed production, strongly correlated environmental fluctuations (the Moran effect) failed to produce a high positive correlation in seed production across the forest in the absence of pollen limitation. Regardless of the high nonlinearity of resource dynamics, a large correlation was maintained when both pollen limitation and correlated environmental fluctuation occurred. 4 We derived a regression formula for the degree of synchronization when pollen coupling occurred only on a local scale. The correlation coefficient of seed crops between distantly located individuals decreases with the resource depletion coefficient, but it increases with the strength of pollen limitation, the standard deviation of environmental noise, and the correlation of environmental noise between different trees.

AB - 1 Coupled map models for the dynamics of individuals' energy reserves have shown that large between-year fluctuation in tree seed crops can occur in a constant environment and that reproduction can be synchronized over the whole forest if fruit production is limited by the availability of outcross pollen. 2 In this paper we examine the effects of the environmental fluctuation experienced by different individuals. The reactive changes in annual productivity and the reproductive threshold are accounted for by an additional term in the energy reserve dynamics. 3 If individuals show chaotic seed production, strongly correlated environmental fluctuations (the Moran effect) failed to produce a high positive correlation in seed production across the forest in the absence of pollen limitation. Regardless of the high nonlinearity of resource dynamics, a large correlation was maintained when both pollen limitation and correlated environmental fluctuation occurred. 4 We derived a regression formula for the degree of synchronization when pollen coupling occurred only on a local scale. The correlation coefficient of seed crops between distantly located individuals decreases with the resource depletion coefficient, but it increases with the strength of pollen limitation, the standard deviation of environmental noise, and the correlation of environmental noise between different trees.

UR - http://www.scopus.com/inward/record.url?scp=0036793008&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036793008&partnerID=8YFLogxK

U2 - 10.1046/j.1365-2745.2002.00721.x

DO - 10.1046/j.1365-2745.2002.00721.x

M3 - Article

AN - SCOPUS:0036793008

VL - 90

SP - 830

EP - 838

JO - Journal of Ecology

JF - Journal of Ecology

SN - 0022-0477

IS - 5

ER -