ISSN:
1573-8248
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract To develop a monitoring program requires that not only the spatial pattern of distribution of a species be known, but also the cost of sampling the area(s) within the host plants occupied by a species. As sample unit size (plant, branch, leaf, etc.) decreases, cost to sample each unit decreases, while the number of units required to estimate a population parameter with a given reliability increases. The concept of costreliability allows for available sampling procedures to be compared and the best one to be chosen. The paper discusses several ways in which monitoring costs have been reduced forTetranychus spp.,Heliothis spp. and predators without reducing the reliability of the estimate. These include the use of subsampling plans, binomial sampling and sequential sampling.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02371854
