Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina

Outbreaks of the defoliator moth Ormiscodes amphimone are occurring more frequently in numerous Nothofagus forests of Patagonia. However, little is known about the life history of this species including its natural enemies as mortality agents. In this work we quantified mortality by parasitoids and...

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Autores principales:	PARITSIS,JUAN, QUINTERO,CAROLINA, KITZBERGER,THOMAS, VEBLEN,THOMAS T
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2012
Materias:	entomopathogenic nematode Hyposoter Nothofagus parasitoids predation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000100009
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spelling	oai:scielo:S0716-078X20120001000092012-06-13Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, ArgentinaPARITSIS,JUANQUINTERO,CAROLINAKITZBERGER,THOMASVEBLEN,THOMAS T entomopathogenic nematode Hyposoter Nothofagus parasitoids predation Outbreaks of the defoliator moth Ormiscodes amphimone are occurring more frequently in numerous Nothofagus forests of Patagonia. However, little is known about the life history of this species including its natural enemies as mortality agents. In this work we quantified mortality by parasitoids and generalist predators at the egg, larval and pupal life stages of O. amphimone in a Nothofagus pumilio (Poepp. & Endl.) Krasser forest in northwestern Patagonia. Parasitism of eggs was relatively low (ca. 11 %), and we did not record significant larval predation by insectivorous birds. However, we recorded elevated mortality caused by larval parasitoids (ca. 50 % in third instar larvae) and pupal predators (ca. 75 %), which suggests that these natural enemies could play a significant role in regulating O. amphimone populations. Our research is an initial step towards understanding the influence of natural enemies on O. amphimone population dynamics.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.85 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000100009en10.4067/S0716-078X2012000100009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	entomopathogenic nematode Hyposoter Nothofagus parasitoids predation
spellingShingle	entomopathogenic nematode Hyposoter Nothofagus parasitoids predation PARITSIS,JUAN QUINTERO,CAROLINA KITZBERGER,THOMAS VEBLEN,THOMAS T Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina
description	Outbreaks of the defoliator moth Ormiscodes amphimone are occurring more frequently in numerous Nothofagus forests of Patagonia. However, little is known about the life history of this species including its natural enemies as mortality agents. In this work we quantified mortality by parasitoids and generalist predators at the egg, larval and pupal life stages of O. amphimone in a Nothofagus pumilio (Poepp. & Endl.) Krasser forest in northwestern Patagonia. Parasitism of eggs was relatively low (ca. 11 %), and we did not record significant larval predation by insectivorous birds. However, we recorded elevated mortality caused by larval parasitoids (ca. 50 % in third instar larvae) and pupal predators (ca. 75 %), which suggests that these natural enemies could play a significant role in regulating O. amphimone populations. Our research is an initial step towards understanding the influence of natural enemies on O. amphimone population dynamics.
author	PARITSIS,JUAN QUINTERO,CAROLINA KITZBERGER,THOMAS VEBLEN,THOMAS T
author_facet	PARITSIS,JUAN QUINTERO,CAROLINA KITZBERGER,THOMAS VEBLEN,THOMAS T
author_sort	PARITSIS,JUAN
title	Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina
title_short	Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina
title_full	Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina
title_fullStr	Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina
title_full_unstemmed	Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina
title_sort	mortality of the outbreak defoliator ormiscodes amphimone (lepidoptera: saturniidae) caused by natural enemies in northwestern patagonia, argentina
publisher	Sociedad de Biología de Chile
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000100009
work_keys_str_mv	AT paritsisjuan mortalityoftheoutbreakdefoliatorormiscodesamphimonelepidopterasaturniidaecausedbynaturalenemiesinnorthwesternpatagoniaargentina AT quinterocarolina mortalityoftheoutbreakdefoliatorormiscodesamphimonelepidopterasaturniidaecausedbynaturalenemiesinnorthwesternpatagoniaargentina AT kitzbergerthomas mortalityoftheoutbreakdefoliatorormiscodesamphimonelepidopterasaturniidaecausedbynaturalenemiesinnorthwesternpatagoniaargentina AT veblenthomast mortalityoftheoutbreakdefoliatorormiscodesamphimonelepidopterasaturniidaecausedbynaturalenemiesinnorthwesternpatagoniaargentina
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Mortality of the outbreak defoliator Ormiscodes amphimone (Lepidoptera: Saturniidae) caused by natural enemies in northwestern Patagonia, Argentina

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