The persistence of simple host-parasitoid systems with prolonged diapause

The persistence of simple host-parasitoid systems with prolonged diapause

Many univoltine insect populations can spread adult emergence in time through a phenomena known as prolonged diapause. With the exception of a few works, the dynamic consequences of prolonged diapause in coupled host parasitoid populations remains an open question. We modified the classical Nicholson-Bailey model to consider synchronic prolonged diapause in a model lacking other stabilising features. Our results add evidence to past work in that they show that this phenomena may be of little importance to the stability of hostparasitoid systems. However, the model predicts long-term persistence through abrupt oscillations. This feature may in itself help explain the population behaviour of many insect populations exhibiting outbreak dynamics and sets the emphasis on the importance of looking into transient dynamics.

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Main Authors: Corley, Juan C., Capurro, Angel F.
Format: Digital revista
Language:eng
Published: Asociación Argentina de Ecología 2000
Online Access:https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1597
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spelling rev-ecoaus-article-15972021-01-14T15:03:29Z The persistence of simple host-parasitoid systems with prolonged diapause La persistencia de sistemas hospedero-parasitoides simples con diapausa prolongada Corley, Juan C. Capurro, Angel F. Many univoltine insect populations can spread adult emergence in time through a phenomena known as prolonged diapause. With the exception of a few works, the dynamic consequences of prolonged diapause in coupled host parasitoid populations remains an open question. We modified the classical Nicholson-Bailey model to consider synchronic prolonged diapause in a model lacking other stabilising features. Our results add evidence to past work in that they show that this phenomena may be of little importance to the stability of hostparasitoid systems. However, the model predicts long-term persistence through abrupt oscillations. This feature may in itself help explain the population behaviour of many insect populations exhibiting outbreak dynamics and sets the emphasis on the importance of looking into transient dynamics. Many univoltine insect populations can spread adult emergence in time through a phenomena known as prolonged diapause. With the exception of a few works, the dynamic consequences of prolonged diapause in coupled host parasitoid populations remains an open question. We modified the classical Nicholson-Bailey model to consider synchronic prolonged diapause in a model lacking other stabilising features. Our results add evidence to past work in that they show that this phenomena may be of little importance to the stability of hostparasitoid systems. However, the model predicts long-term persistence through abrupt oscillations. This feature may in itself help explain the population behaviour of many insect populations exhibiting outbreak dynamics and sets the emphasis on the importance of looking into transient dynamics. Asociación Argentina de Ecología 2000-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículos application/pdf https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1597 Ecología Austral; Vol. 10 No. 1 (2000); 037-045 Ecología Austral; Vol. 10 Núm. 1 (2000); 037-045 0327-5477 1667-7838 eng https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1597/931 Derechos de autor 2021 Ecología Austral
institution AUSTRAL
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country Argentina
countrycode AR
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region America del Sur
libraryname Asociación Argentina de Ecología
language eng
format Digital
author Corley, Juan C.
Capurro, Angel F.
spellingShingle Corley, Juan C.
Capurro, Angel F.
The persistence of simple host-parasitoid systems with prolonged diapause
author_facet Corley, Juan C.
Capurro, Angel F.
author_sort Corley, Juan C.
title The persistence of simple host-parasitoid systems with prolonged diapause
title_short The persistence of simple host-parasitoid systems with prolonged diapause
title_full The persistence of simple host-parasitoid systems with prolonged diapause
title_fullStr The persistence of simple host-parasitoid systems with prolonged diapause
title_full_unstemmed The persistence of simple host-parasitoid systems with prolonged diapause
title_sort persistence of simple host-parasitoid systems with prolonged diapause
description Many univoltine insect populations can spread adult emergence in time through a phenomena known as prolonged diapause. With the exception of a few works, the dynamic consequences of prolonged diapause in coupled host parasitoid populations remains an open question. We modified the classical Nicholson-Bailey model to consider synchronic prolonged diapause in a model lacking other stabilising features. Our results add evidence to past work in that they show that this phenomena may be of little importance to the stability of hostparasitoid systems. However, the model predicts long-term persistence through abrupt oscillations. This feature may in itself help explain the population behaviour of many insect populations exhibiting outbreak dynamics and sets the emphasis on the importance of looking into transient dynamics.
publisher Asociación Argentina de Ecología
publishDate 2000
url https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1597
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