ISHS Acta Horticulturae 124: III International Symposium on Pear Growing
A PERSPECTIVE FOR UNDERSTANDING ARTHROPOD COMMUNITY ORGANIZATION AND DEVELOPMENT IN PEAR |
| Authors: | W.J. Liss, P.H. Westigard, L.J. Gut, C.E. Warren |
| Abstract:
A conceptual and theoretical framework for understanding the organization and development of complex arthropod communities is presented and interpreted in pear. Several levels of organization or relatively discrete community subsystems lying between species populations and the community as a whole can be recognized. We have termed these sub-communities, systems of populations, and guilds. Arthropod community structure and organization can be understood as conforming or being concordant with the structure and organization of the community habitat. A tentative view of arthropod community habitat structure and organization in pear is suggested. Arthropod community development is taken to be change in community structure and organization through time. Community development can be understood as being determined by the developmental pattern of the community habitat (change in habitat structure and organization through time) and the potential capacity of the community. Community potential capacity for development is interpreted as residing in the species pool of potential arthropod colonists. The species pool can be conceptualized as a system of arthropod communities each developing on a particular community habitat. This theoretical framework suggests that management or arthropod community development entails management of species pool structure and organization and community habitat developmental pattern. | |
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