Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function

Bibliographic Details
Main Author: Azevedo, João
Publication Date: 2010
Other Authors: Coelho, Valentim, Castro, João Paulo, Spínola, Diogo, Gouveia, Maria Eugénia
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10198/2907
Summary: We used the Ripley’s K function to describe the spatial dynamics of chestnut blight (Cryphonectria parasitica (Murrill) Barr) in sweet chestnut orchards to look at pattern in the pathogen distribution over time and the effect of the location of infected trees on the pattern of disease spread. We used data on infected and dead trees in 2003, 2004, 2005, and 2009 in 4 orchards located in Curopos parish, Portugal. We found both random and aggregated patterns of infected trees in the beginning of the study period and significant association of infected trees between successive dates, particularly at short distances. Two of the 4 studied orchards showed significant clustering of infected and dead trees in any of the dates observed but random spatial pattern in the remaining two which can possibly be explained by both natural propagation of the disease and management practices.
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spelling Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K functionCryphonectria parasiticaChestnut blightRipley’s K functionPortugalWe used the Ripley’s K function to describe the spatial dynamics of chestnut blight (Cryphonectria parasitica (Murrill) Barr) in sweet chestnut orchards to look at pattern in the pathogen distribution over time and the effect of the location of infected trees on the pattern of disease spread. We used data on infected and dead trees in 2003, 2004, 2005, and 2009 in 4 orchards located in Curopos parish, Portugal. We found both random and aggregated patterns of infected trees in the beginning of the study period and significant association of infected trees between successive dates, particularly at short distances. Two of the 4 studied orchards showed significant clustering of infected and dead trees in any of the dates observed but random spatial pattern in the remaining two which can possibly be explained by both natural propagation of the disease and management practices.IPBBiblioteca Digital do IPBAzevedo, JoãoCoelho, ValentimCastro, João PauloSpínola, DiogoGouveia, Maria Eugénia2010-12-14T11:31:36Z20102010-01-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10198/2907engAzevedo, J.C.; Coelho, V.; Castro, J.P. ; Spínola; D.; Gouveia; E. (2010). Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function. In Azevedo, J.C., M. Feliciano, J. Castro and M.A. Pinto (Eds.) Forest Landscapes and Global Change - New Frontiers in Management, Conservation and Restoration. Proceedings of the IUFRO Landscape Ecology Working Group International Conference. Bragança. p. 456-161. ISBN 978-972-745-110-4978-972-745-110-4info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-02-25T11:56:01Zoai:bibliotecadigital.ipb.pt:10198/2907Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T11:17:35.423380Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
title Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
spellingShingle Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
Azevedo, João
Cryphonectria parasitica
Chestnut blight
Ripley’s K function
Portugal
title_short Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
title_full Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
title_fullStr Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
title_full_unstemmed Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
title_sort Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function
author Azevedo, João
author_facet Azevedo, João
Coelho, Valentim
Castro, João Paulo
Spínola, Diogo
Gouveia, Maria Eugénia
author_role author
author2 Coelho, Valentim
Castro, João Paulo
Spínola, Diogo
Gouveia, Maria Eugénia
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Azevedo, João
Coelho, Valentim
Castro, João Paulo
Spínola, Diogo
Gouveia, Maria Eugénia
dc.subject.por.fl_str_mv Cryphonectria parasitica
Chestnut blight
Ripley’s K function
Portugal
topic Cryphonectria parasitica
Chestnut blight
Ripley’s K function
Portugal
description We used the Ripley’s K function to describe the spatial dynamics of chestnut blight (Cryphonectria parasitica (Murrill) Barr) in sweet chestnut orchards to look at pattern in the pathogen distribution over time and the effect of the location of infected trees on the pattern of disease spread. We used data on infected and dead trees in 2003, 2004, 2005, and 2009 in 4 orchards located in Curopos parish, Portugal. We found both random and aggregated patterns of infected trees in the beginning of the study period and significant association of infected trees between successive dates, particularly at short distances. Two of the 4 studied orchards showed significant clustering of infected and dead trees in any of the dates observed but random spatial pattern in the remaining two which can possibly be explained by both natural propagation of the disease and management practices.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-14T11:31:36Z
2010
2010-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/2907
url http://hdl.handle.net/10198/2907
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Azevedo, J.C.; Coelho, V.; Castro, J.P. ; Spínola; D.; Gouveia; E. (2010). Spatial dynamics of chestnut blight disease at the plot level using the Ripley’s K function. In Azevedo, J.C., M. Feliciano, J. Castro and M.A. Pinto (Eds.) Forest Landscapes and Global Change - New Frontiers in Management, Conservation and Restoration. Proceedings of the IUFRO Landscape Ecology Working Group International Conference. Bragança. p. 456-161. ISBN 978-972-745-110-4
978-972-745-110-4
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IPB
publisher.none.fl_str_mv IPB
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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