Modelling invasibility in endogenously oscillating tree populations : Timing of invasion matters
(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.
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- author
- Caplat, Paul LU ; Anand, Madhur and Bauch, Chris
- publishing date
- 2009-01
- 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
- 2022-01-30 02:49:47
@article{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.</p>}},
author = {{Caplat, Paul and Anand, Madhur and Bauch, Chris}},
issn = {{1387-3547}},
keywords = {{Exploitation competition; Forest model; Individual-based model; Invasion criteria; Oscillations; Species coexistence; Stochasticity}},
language = {{eng}},
number = {{1}},
pages = {{219--231}},
publisher = {{Springer}},
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}},
doi = {{10.1007/s10530-009-9444-1}},
volume = {{12}},
year = {{2009}},
}