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Systems analysis of beef production in the western high plains of Venezuela
(1978)
The Western High Plains of Venezuela were chosen for this study. Information used to describe the physical environment and genetic parameters required to simulate beef cattle production systems was obtained from the ...
Aerial biomass production and environment of a grassland ecosystem: a model
(1978)
Simulation of changes in production within an Andropoqon-Paspalum dominated grassland ecosystem of east-central Texas was based on 36 months of environmental and 20 months of biomass data. Simulation models utilizing ...
A systems model of the tourist's destination selection decision process with particular reference to the role of image and perceived constraints
(1977)
A model of the tourist's destination selection decision process was developed and evaluated. Data were collected through in-depth personal interviews using a non-scheduled instrument and five semantic differential scale ...
A computer simulation of populations of the horn fly, Haematobia irritans (L.)
(1977)
The survival of the immature stages of the horn fly, Haematobia irratians (L.), in manure droppings was studied under field conditions in Central Texas during the 1972 and 1973 horn fly seasons. The effect of interspecific ...