Landscape epidemiology of plant diseases

Journal of the Royal Society Interface - Tập 4 Số 16 - Trang 963-972 - 2007
Sandrine Petit1, Christophe Le May2, Frédéric Fabre3
1UMR INRA/Agrocampus Rennes 1099 [BIO3P], 65, rue de Saint-Brieuc, CS 84215, 35042 Rennes, France.
2UMR INRA/Agrocampus Rennes 1099 [BIO3P], 65, rue de Saint-BrieucCS 84215, 35042 Rennes, France
3INRA, UR407 Pathologie Végétale84143 Montfavet, France

Tóm tắt

Many agricultural landscapes are characterized by a high degree of heterogeneity and fragmentation. Landscape ecology focuses on the influence of habitat heterogeneity in space and time on ecological processes. Landscape epidemiology aims at applying concepts and approaches originating from landscape ecology to the study of pathogen dynamics at the landscape scale. However, despite the strong influence that the landscape properties may have on the spread of plant diseases, landscape epidemiology has still received little attention from plant pathologists. Some recent methodological and technological progress provides new and powerful tools to describe and analyse the spatial patterns of host–pathogen interactions. Here, we review some important topics in plant pathology that may benefit from a landscape perspective. These include the influence of: landscape composition on the global inoculum pressure; landscape heterogeneity on pathogen dynamics; landscape structure on pathogen dispersal; and landscape properties on the emergence of pathogens and on their evolution.

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