Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina
The woodwasp Sirex noctilio F. (Hymenoptera: Siricidae) is probably the most important pest of pine tree plantations of the southern hemisphere. We studied the spatial arrangement of an endemic population of the woodwasp S. noctilio within pine plantations located in northwest Patagonia, Argentina, during three successive years since colonization. By censusing healthy and attacked trees, which provided data on current and past yearly woodwasp attacks, we studied: (i) the spatial pattern of attacked trees during the endemic phase of a woodwasp population, and (ii) the changes in the spatial arrangement through time and with an increasing (i.e., no intervention) pest population. Among a total of 53 649 counted trees, attack rates were low during the study period (accumulated attack below 0.5%). Results of spatial statistical analysis showed that woodwasp attack is highly clumped, and that spatial aggregation increases with time, even with increasing numbers of attacked trees. The observed spatial arrangement, a consequence of a demographic process, can have important implications for the management of woodwasp populations and contributes to our understanding of the nature of outbreak population behaviour in this pestiferous forest insect.
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Format: | info:ar-repo/semantics/artículo biblioteca |
Language: | eng |
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Wiley
2007-12
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Subjects: | Sirex, Plagas de Plantas, Pinus, Plagas Forestales, Ecología, Pests of Plants, Forest Pests, Ecology, Sirex Noctilio, Avispas, Región Patagónica, |
Online Access: | https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1570-7458.2007.00623.x http://hdl.handle.net/20.500.12123/5108 https://doi.org/10.1111/j.1570-7458.2007.00623.x |
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oai:localhost:20.500.12123-51082019-05-14T12:07:24Z Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina Corley, Juan Carlos Villacide, Jose Maria Bruzzone, Octavio Augusto Sirex Plagas de Plantas Pinus Plagas Forestales Ecología Pests of Plants Forest Pests Ecology Sirex Noctilio Avispas Región Patagónica The woodwasp Sirex noctilio F. (Hymenoptera: Siricidae) is probably the most important pest of pine tree plantations of the southern hemisphere. We studied the spatial arrangement of an endemic population of the woodwasp S. noctilio within pine plantations located in northwest Patagonia, Argentina, during three successive years since colonization. By censusing healthy and attacked trees, which provided data on current and past yearly woodwasp attacks, we studied: (i) the spatial pattern of attacked trees during the endemic phase of a woodwasp population, and (ii) the changes in the spatial arrangement through time and with an increasing (i.e., no intervention) pest population. Among a total of 53 649 counted trees, attack rates were low during the study period (accumulated attack below 0.5%). Results of spatial statistical analysis showed that woodwasp attack is highly clumped, and that spatial aggregation increases with time, even with increasing numbers of attacked trees. The observed spatial arrangement, a consequence of a demographic process, can have important implications for the management of woodwasp populations and contributes to our understanding of the nature of outbreak population behaviour in this pestiferous forest insect. EEA Bariloche Fil: Corley, Juan Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina Fil: Villacide, Jose Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina Fil: Bruzzone, Octavio Augusto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología de Poblaciones de Insectos; Argentina 2019-05-14T12:05:40Z 2019-05-14T12:05:40Z 2007-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1570-7458.2007.00623.x http://hdl.handle.net/20.500.12123/5108 0013-8703 1570-7458 https://doi.org/10.1111/j.1570-7458.2007.00623.x eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Entomologia Experimentalis et Applicata 125 (3) : 231-236 (December 2007) |
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Biblioteca Central del INTA Argentina |
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Sirex Plagas de Plantas Pinus Plagas Forestales Ecología Pests of Plants Forest Pests Ecology Sirex Noctilio Avispas Región Patagónica Sirex Plagas de Plantas Pinus Plagas Forestales Ecología Pests of Plants Forest Pests Ecology Sirex Noctilio Avispas Región Patagónica |
spellingShingle |
Sirex Plagas de Plantas Pinus Plagas Forestales Ecología Pests of Plants Forest Pests Ecology Sirex Noctilio Avispas Región Patagónica Sirex Plagas de Plantas Pinus Plagas Forestales Ecología Pests of Plants Forest Pests Ecology Sirex Noctilio Avispas Región Patagónica Corley, Juan Carlos Villacide, Jose Maria Bruzzone, Octavio Augusto Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina |
description |
The woodwasp Sirex noctilio F. (Hymenoptera: Siricidae) is probably the most important pest of pine tree plantations of the southern hemisphere. We studied the spatial arrangement of an endemic population of the woodwasp S. noctilio within pine plantations located in northwest Patagonia, Argentina, during three successive years since colonization. By censusing healthy and attacked trees, which provided data on current and past yearly woodwasp attacks, we studied: (i) the spatial pattern of attacked trees during the endemic phase of a woodwasp population, and (ii) the changes in the spatial arrangement through time and with an increasing (i.e., no intervention) pest population. Among a total of 53 649 counted trees, attack rates were low during the study period (accumulated attack below 0.5%). Results of spatial statistical analysis showed that woodwasp attack is highly clumped, and that spatial aggregation increases with time, even with increasing numbers of attacked trees. The observed spatial arrangement, a consequence of a demographic process, can have important implications for the management of woodwasp populations and contributes to our understanding of the nature of outbreak population behaviour in this pestiferous forest insect. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Sirex Plagas de Plantas Pinus Plagas Forestales Ecología Pests of Plants Forest Pests Ecology Sirex Noctilio Avispas Región Patagónica |
author |
Corley, Juan Carlos Villacide, Jose Maria Bruzzone, Octavio Augusto |
author_facet |
Corley, Juan Carlos Villacide, Jose Maria Bruzzone, Octavio Augusto |
author_sort |
Corley, Juan Carlos |
title |
Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina |
title_short |
Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina |
title_full |
Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina |
title_fullStr |
Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina |
title_full_unstemmed |
Spatial dynamics of a Sirex noctilio woodwasp population within a pine plantation in Patagonia, Argentina |
title_sort |
spatial dynamics of a sirex noctilio woodwasp population within a pine plantation in patagonia, argentina |
publisher |
Wiley |
publishDate |
2007-12 |
url |
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1570-7458.2007.00623.x http://hdl.handle.net/20.500.12123/5108 https://doi.org/10.1111/j.1570-7458.2007.00623.x |
work_keys_str_mv |
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_version_ |
1756007473655840769 |