JSM 2005 Online Program

Abstract #304594

This is the preliminary program for the 2005 Joint Statistical Meetings in Minneapolis, Minnesota. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2005); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

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Activity Number:	107
Type:	Contributed
Date/Time:	Monday, August 8, 2005 : 8:30 AM to 10:20 AM
Sponsor:	Section on Statistics and the Environment
Abstract - #304594
Title:	A Model for Corn Pollen Dispersion
Author(s):	Petruta Caragea*+
Companies:	Iowa State University
Address:	125 Snedecor Hall, Ames, IA, 50011, United States
Keywords:	genetically modified corn ; environmental concerns
Abstract:	During the past decade, there has been an increasing interest in the uses of genetically modified corn in the pharmaceutical industry. However, planting genetically modified crops in the open field raises concerns in terms of possible spread of traits associated with such genetic engineering into corn used for general food production. Currently, EPA requires a buffer zone of 1 mile around the corn field to ensure there is no contamination. Since this regulation seems to be decided more or less based on empirical observations, a number of studies have been conducted aimed at understanding the dispersion of pollen of genetically modified corn crops. From the statistical point of view, this task poses several challenges related to a substantial fall in the magnitude of observations as the distance from the source field increases. We propose here a model that incorporates distance and meteorological variables as covariates in an effort to estimate the probability of contamination far from the field.

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