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

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dc.contributor.authorAzevedo, João
dc.contributor.authorCoelho, Valentim
dc.contributor.authorCastro, João Paulo
dc.contributor.authorSpínola, Diogo
dc.contributor.authorGouveia, Maria Eugénia
dc.date.accessioned2011-03-29T14:30:27Z
dc.date.available2011-03-29T14:30:27Z
dc.date.issued2010
dc.description.abstractWe used the Ripley’s K function, a second order analysis method, to describe the spatial dynamics of tree infection caused by chestnut blight (Cryphonectria parasitica (Murrill) Barr) in sweet chestnut orchards. Our research question was whether the location of infected trees affected the spatial pattern of spread of the disease in orchards. We also wanted to know whether existing patterns could be associated with management practices. Surveys of infections and mortality caused by chestnut blight were conducted at the tree level in 4 plots in 2003, 2004, 2005, and 2009 in the Curopos parish, Vinhais, Portugal. We applied the Ripley’s K function to locations of diseased (infected and dead) trees to look for spatial pattern. We compared locations from successive dates using the bivariate form of the K function to look for spatial association of diseased trees in consecutive years. 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. The results indicate that fast, short distance spread of chestnut blight occurs within orchards which can possibly be explained by both natural propagation of the disease and management practices.por
dc.identifier.citationAzevedo, 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, João; Feliciano, Manuel; Castro, José; Pinto, Maria Alice (Ed.) - Book of abstracts of the IUFRO Landscape Ecology Working Group International Conference: Forest Landscapes and Global Change ‐ New Frontiers in Management, Conservation and Restoration. Bragança: IPB, IUFRO. ISBN 9789727451111por
dc.identifier.isbn978-972-745-111-1
dc.identifier.urihttp://hdl.handle.net/10198/3799
dc.language.isoengpor
dc.peerreviewednopor
dc.publisherIPBpor
dc.subjectRipley’s K functionpor
dc.subjectCryphonectria parasiticapor
dc.subjectVinhaispor
dc.subjectLandscape ecologypor
dc.titleSpatial dynamics of chestnut blight disease at the plot level using the Ripley’s K functionpor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceBragançapor
oaire.citation.endPage152por
oaire.citation.startPage152por
oaire.citation.titleBook of abstracts of the IUFRO Landscape Ecology Working Group International Conference: Forest Landscapes and Global Change ‐ New Frontiers in Management, Conservation and Restorationpor
person.familyNameAzevedo
person.familyNameCoelho
person.familyNameCastro
person.familyNameGouveia
person.givenNameJoão C.
person.givenNameValentim
person.givenNameJoão Paulo
person.givenNameMaria Eugénia
person.identifier.ciencia-id3F1F-0829-5878
person.identifier.ciencia-id0618-49BC-EACE
person.identifier.ciencia-id8D19-DBCC-8EF5
person.identifier.orcid0000-0002-3061-8261
person.identifier.orcid0000-0001-5829-7669
person.identifier.orcid0000-0003-0647-8892
person.identifier.orcid0000-0002-2550-9108
person.identifier.ridA-8581-2014
person.identifier.scopus-author-id26533798200
person.identifier.scopus-author-id21233448700
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublicatione15b0e75-689e-4be0-942c-1958cfefdb0f
relation.isAuthorOfPublication99a97d58-8b4c-4a49-9855-d334d568b9f3
relation.isAuthorOfPublication17820e65-bb0d-434b-bfef-4bb539f614a5
relation.isAuthorOfPublication99e4701b-e3c2-4594-a37f-42bd49821d6e
relation.isAuthorOfPublication.latestForDiscovery17820e65-bb0d-434b-bfef-4bb539f614a5

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