Artículo
Spatial distribution of Cydia fagiglandana (Zeller) in an exploited holm oak (Quercus ilex L.) forest
Autor/es | Jiménez Pino, Agustina
Maistrello, Lara López Martínez, María Ángeles Ocete Rubio, María Elvira Soria Iglesias, Francisco Javier |
Departamento | Universidad de Sevilla. Departamento de Zoología |
Fecha de publicación | 2011 |
Fecha de depósito | 2015-02-27 |
Publicado en |
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Resumen | Cydia fagiglandana (Zeller) (Lepidoptera: Tortricidae) is a carpophagous insect which affects the quality and
viability of the fruits of beech, oak and chestnut trees. The majority of the works on this species in holm oak ... Cydia fagiglandana (Zeller) (Lepidoptera: Tortricidae) is a carpophagous insect which affects the quality and viability of the fruits of beech, oak and chestnut trees. The majority of the works on this species in holm oak woods dealt with assessing its damages. No investigations have yet been performed on the spatial distribution of this pest, although this element is one of the key features to take in account in order to develop proper integrated management programs. The present study, performed during a four years period in an exploited holm oak forest area in Southern Spain, investigated the spatial distribution of C. fagiglandana integrating classic methods based on dispersion rates and distribution fitting together with the elaboration of population density maps based on GIS. Our results showed that the infestation rate progressively decreased from 0.339 in 2001 to 0.102 in 2004. Density maps for C. fagiglandana also show an heterogeneous and aggregated distribution of this insect and a spatio-temporal stability in this area. It is concluded that during the four years of the study inter-specific competition with the weevil Curculio elephas was the factor that most affected the spatial distribution of C. fagiglandana in the experimental plot. |
Cita | Jiménez Pino, A., Maistrello, L., López Martínez, M.Á., Ocete Rubio, M.E. y Soria Iglesias, F.J. (2011). Spatial distribution of Cydia fagiglandana (Zeller) in an exploited holm oak (Quercus ilex L.) forest. Spanish Journal of Agricultural Research, 9, -579. |
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