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Smoothing for spatiotemporal models and its application to modeling Muskrat-Mink interaction

Zhang, Wenyang, Yao, Qiwei, Tong, Howell and Stenseth, Nils Chr (2003) Smoothing for spatiotemporal models and its application to modeling Muskrat-Mink interaction. Biometrics, 59 (4). pp. 813-821. ISSN 1541-0420

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Abstract

For a set of spatially dependent dynamical models, we propose a method for estimating parameters that control temporal dynamics by spatial smoothing. The new approach is particularly relevant for analyzing spatially distributed panels of short time series. The asymptotic results show that spatial smoothing will improve the estimation in the presence of nugget effect, even when the sample size in each location is large. The proposed methodology is used to analyze the annual mink and muskrat data collected in a period of 25 years in 81 Canadian locations. Based on the proposed method, we are able to model the temporal dynamics which reflects the food chain interaction of the two species.

Item Type: Article
Official URL: http://www.blackwell-synergy.com/loi/biom
Additional Information: © 2003 Blackwell Publishing
Library of Congress subject classification: H Social Sciences > HA Statistics
Sets: Collections > Economists Online
Departments > Economics
Departments > Statistics
Rights: http://www.lse.ac.uk/library/usingTheLibrary/academicSupport/OA/depositYourResearch.aspx
Date Deposited: 20 Jun 2008 08:16
URL: http://eprints.lse.ac.uk/5832/

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