Life history traits of Sirex noctilio F. (Hymenoptera: Siricidae) can explain outbreaks independently of environmental factors

The woodwasp Sirex noctilio is a major pest of pine plantations worldwide. Economically significant damage is however limited to outbreak populations. To understand what determines outbreaks dynamics in this species, we developed an individual based model for a wasp population developing within a pi...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Aparicio, Juan Pablo, Corley, Juan Carlos, Rabinovich, Jorge Eduardo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Naturales
Allee efects
Insects outbreaks
Invasive insects
Model
Pine tree pests
Woodwasp
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85348
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85348
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Allee efects
Insects outbreaks
Invasive insects
Model
Pine tree pests
Woodwasp
spellingShingle Ciencias Naturales
Allee efects
Insects outbreaks
Invasive insects
Model
Pine tree pests
Woodwasp
Aparicio, Juan Pablo
Corley, Juan Carlos
Rabinovich, Jorge Eduardo
Life history traits of Sirex noctilio F. (Hymenoptera: Siricidae) can explain outbreaks independently of environmental factors
topic_facet Ciencias Naturales
Allee efects
Insects outbreaks
Invasive insects
Model
Pine tree pests
Woodwasp
description The woodwasp Sirex noctilio is a major pest of pine plantations worldwide. Economically significant damage is however limited to outbreak populations. To understand what determines outbreaks dynamics in this species, we developed an individual based model for a wasp population developing within a pine plantation. We show that outbreaks may be the result of the insect's life history. Specifically we show that limited dispersal may not only increase population persistence but also create the conditions for eruptive dynamics. When the probability of long distance dispersal is greater than zero, but relatively small (PLDD= 0.1) large outbreaks are the norm, with all of the suitable trees dead at the end of the simulation. For PLDD= 0 (only local dispersal allowed) outbreaks are smaller in size, and in some cases not well defined and spread over longer periods. For PLDD= 1 (only long distance dispersal allowed), the frequency of local population extinction (without outbreaks) increases significantly. Aggregated attacks may induce physiological changes in the trees which could allow other wasps to detect them. These changes may in turn trigger an outbreak. In contrast, healthy, vigorous trees are not suitable for wasp oviposition. In our model the density of suitable trees (healthy trees but yet suitable for oviposition) are a key factor determining population persistence before outbreaks. From an applied perspective, our results emphasize the importance of adequate plantation management in preventing woodwasp infestation.
format Articulo
Articulo
author Aparicio, Juan Pablo
Corley, Juan Carlos
Rabinovich, Jorge Eduardo
author_facet Aparicio, Juan Pablo
Corley, Juan Carlos
Rabinovich, Jorge Eduardo
author_sort Aparicio, Juan Pablo
title Life history traits of Sirex noctilio F. (Hymenoptera: Siricidae) can explain outbreaks independently of environmental factors
title_short Life history traits of Sirex noctilio F. (Hymenoptera: Siricidae) can explain outbreaks independently of environmental factors
title_full Life history traits of Sirex noctilio F. (Hymenoptera: Siricidae) can explain outbreaks independently of environmental factors
title_fullStr Life history traits of Sirex noctilio F. (Hymenoptera: Siricidae) can explain outbreaks independently of environmental factors
title_full_unstemmed Life history traits of Sirex noctilio F. (Hymenoptera: Siricidae) can explain outbreaks independently of environmental factors
title_sort life history traits of sirex noctilio f. (hymenoptera: siricidae) can explain outbreaks independently of environmental factors
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85348
work_keys_str_mv AT apariciojuanpablo lifehistorytraitsofsirexnoctiliofhymenopterasiricidaecanexplainoutbreaksindependentlyofenvironmentalfactors
AT corleyjuancarlos lifehistorytraitsofsirexnoctiliofhymenopterasiricidaecanexplainoutbreaksindependentlyofenvironmentalfactors
AT rabinovichjorgeeduardo lifehistorytraitsofsirexnoctiliofhymenopterasiricidaecanexplainoutbreaksindependentlyofenvironmentalfactors
bdutipo_str Repositorios
_version_ 1764820489315811328

Ejemplares similares