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dc.contributor.author
Grilli, Mariano Pablo
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dc.date.available
2020-07-21T22:04:29Z
dc.date.issued
2010-01
dc.identifier.citation
Grilli, Mariano Pablo; The role of landscape structure on the abundance of a disease vector planthopper: a quantitative approach; Springer; Landscape Ecology; 25; 3; 1-2010; 383-394
dc.identifier.issn
0921-2973
dc.identifier.uri
http://hdl.handle.net/11336/109832
dc.description.abstract
Studies of patchily distributed insect populations have made clear the importance of host patch size and degree of isolation in determining the distribution of these populations. For such populations, patch connectivity will have an effect on patterns of patch occupancy and regional dynamics. In the present study we performed a series of observations to estimate the effect of landscape structure on the abundance of Delphacodes kuscheli (Homoptera: Delphacidae). Actively dispersing D. kuscheli individuals were collected in 19 sampling sites during the spring of 2004, using sticky traps placed at 2 m above ground level. Land use and landscape pattern was quantified, using Landsat 5 TM images for the area where each sampling site was placed. Four land use categories were considered in the analysis; winter pastures, winter cereals, perennial pasture and stubble. The spatial pattern analysis program FRAGSTATS was employed to estimate the patch area, patch proximity index and four class metrics for each of the sites where samples were taken. Partial Least Squares Regression analysis techniques were employed to relate the mean abundance of D. kuscheli and the landscape measures.Eighty-one percent of the variation of the mean insect abundance was explained by 54% variation of the landscape elements. The proximity index of the local host patches, the amount of area left to stubble, local host patch area and total area of winter pastures were the most important variables affecting the abundance of dispersing D. kuscheli individuals. We found that the abundance of the dispersive fraction of the population of D. kuscheli is affected mostly by the surrounding landscape, particularly by the proximity of other host patches, and the permeability of the matrix represented by the stubble.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DELPHACID PLANTHOPPER,
dc.subject
DELPHACODES KUSCHELI
dc.subject
LANDSAT 5 TM
dc.subject
LANDSCAPE FRAGMENTATION
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
The role of landscape structure on the abundance of a disease vector planthopper: a quantitative approach
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-07-20T20:23:42Z
dc.identifier.eissn
1096-3642
dc.journal.volume
25
dc.journal.number
3
dc.journal.pagination
383-394
dc.journal.pais
Alemania
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dc.description.fil
Fil: Grilli, Mariano Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinar de Biología Vegetal (P). Grupo Vinculado Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales; Argentina
dc.journal.title
Landscape Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10980-009-9422-0
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10980-009-9422-0
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