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Modelling invasibility in endogenously oscillating tree populations : Timing of invasion matters

Caplat, Paul LU ; Anand, Madhur and Bauch, Chris (2009) In Biological Invasions 12(1). p.219-231
Abstract

The timing of introduction of a new species into an ecosystem can be critical in determining the invasibility (i.e. the sensitivity to invasion) of a resident population. Here, we use an individual-based model to test how (1) the type of competition (symmetric versus asymmetric) and (2) seed masting influence the success of invasion by producing oscillatory dynamics in resident tree populations. We focus on a case where two species (one resident, one invader introduced at low density) do not differ in terms of competitive abilities. By varying the time of introduction of the invader, we show that oscillations in the resident population favour invasion, by creating "invasibility windows" during which resource is available for the invader... (More)

The timing of introduction of a new species into an ecosystem can be critical in determining the invasibility (i.e. the sensitivity to invasion) of a resident population. Here, we use an individual-based model to test how (1) the type of competition (symmetric versus asymmetric) and (2) seed masting influence the success of invasion by producing oscillatory dynamics in resident tree populations. We focus on a case where two species (one resident, one invader introduced at low density) do not differ in terms of competitive abilities. By varying the time of introduction of the invader, we show that oscillations in the resident population favour invasion, by creating "invasibility windows" during which resource is available for the invader due to transiently depressed resident population density. We discuss this result in the context of current knowledge on forest dynamics and invasions, emphasizing the importance of variability in population dynamics. © Springer Science+Business Media B.V. 2009.

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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Exploitation competition, Forest model, Individual-based model, Invasion criteria, Oscillations, Species coexistence, Stochasticity
in
Biological Invasions
volume
12
issue
1
pages
13 pages
publisher
Springer
external identifiers
  • Scopus:72149107065
ISSN
1387-3547
DOI
10.1007/s10530-009-9444-1
language
English
LU publication?
no
id
45841c75-0453-4939-aaf8-ca44bd6b6743
date added to LUP
2016-04-22 08:39:47
date last changed
2016-08-09 14:26:39
@misc{45841c75-0453-4939-aaf8-ca44bd6b6743,
  abstract     = {<p>The timing of introduction of a new species into an ecosystem can be critical in determining the invasibility (i.e. the sensitivity to invasion) of a resident population. Here, we use an individual-based model to test how (1) the type of competition (symmetric versus asymmetric) and (2) seed masting influence the success of invasion by producing oscillatory dynamics in resident tree populations. We focus on a case where two species (one resident, one invader introduced at low density) do not differ in terms of competitive abilities. By varying the time of introduction of the invader, we show that oscillations in the resident population favour invasion, by creating "invasibility windows" during which resource is available for the invader due to transiently depressed resident population density. We discuss this result in the context of current knowledge on forest dynamics and invasions, emphasizing the importance of variability in population dynamics. © Springer Science+Business Media B.V. 2009.</p>},
  author       = {Caplat, Paul and Anand, Madhur and Bauch, Chris},
  issn         = {1387-3547},
  keyword      = {Exploitation competition,Forest model,Individual-based model,Invasion criteria,Oscillations,Species coexistence,Stochasticity},
  language     = {eng},
  number       = {1},
  pages        = {219--231},
  publisher    = {ARRAY(0x976d810)},
  series       = {Biological Invasions},
  title        = {Modelling invasibility in endogenously oscillating tree populations : Timing of invasion matters},
  url          = {http://dx.doi.org/10.1007/s10530-009-9444-1},
  volume       = {12},
  year         = {2009},
}