A Population Model for Plant Growth and Development: Coupling Cotton–herbivore Interaction

Abstract

Can. Enr. 109: 1359-1374 (1977) A general population model for cotton growth and development is presented. The model captures the essential properties of the biological processes, and is sufficiently flexible to the incorporation of complex physiological and behavioral characteristics. The model has been used successfully to simulate the growth and development of Acala SJ-I1 cotton in California. The mathematical framework for coupling plants and herbivores has been presented, and the biological implications of their damage to the plant examined in a very general way.

Energy Acquisition and Allocation in Plants and Insects: A Hypothesis for the Possible Role of Hormones in Insect Feeding Patterns

“…Until recently, plant and animal demographers have viewed population processes from quite different perspectives, but this gap has narrowed (Gutierrez and Wang 1976;Wang et al 1977;Gutierrez, Pizzamiglio et al 1984;Law 1983). For example, plant ecologists (Harper and White 1974;Harper 1979) proposed that populations of plants consisted of individual plants, each of which had populations of plant subunits with age structure.…”

“…For example, plant ecologists (Harper and White 1974;Harper 1979) proposed that populations of plants consisted of individual plants, each of which had populations of plant subunits with age structure. Animal ecologists (Gutierrez and Wang 1976;Wang et al 1977;Curry et al 1978) have used a series of linked von Foerster (1959) models to simulate the demography of cotton plants (Gossypium hirsutum L.) and plant subunit populations in the manner proposed by Harper and White. Growth, development, and reproduction in insects may also be viewed in a similar manner, as female insects have populations of ova or embryos growing within them that may have age structure.…”

An overview of a systems model of cassava and cassava pests in Africa

“…Development of crop system models is becoming commonplace (Gutierrez and Wang, 1976;Wang et al, 1977;Curry et al, 1978;Brown et al, 1985;Gutierrez et al, 1975Gutierrez et al, , 1987and Baumgartner et al, 1986). In this work a distributed delay model (cf.…”

“…Carbon fixed (energy) from photosynthesis or predation and herbivory is allocated in the model according to the following priority scheme: first to respiration (and egestion where appropriate), then reproduction and lastly to growth and reserves (Gutierrez et al, 1975(Gutierrez et al, , 1986Wang et al, 1977). In all species, energy acquisition and allocation link the organism population model to its subunit models (e.g., fruits, leaves or embryos; Jones et al, 1974).…”

Feature Article—Operations Research for Agricultural Pest Management

“…Gurten and M'acCamy [1979] consider density dependent mortality and births by extending the theory to nonlinear structures where the birth and death rates are functions of the total population. One of the first applications of Von Foerster's technique to an agricultural system was the modeling of a cotton crop by Wang et al [1977]. In this application the time and age scales are both based on day-degrees.…”