Matthew J. Smith
17 November 2008
The minimum criteria a population model should meet in order to aid in the making of non detriment findings (NDFs) should be a demonstrable ability to predict changes to the population size following actual harvesting regimes to a desired level of accuracy. This case study outlines how population models could be developed and used to aid in making NDFs for G. elwesii, the Turkish Giant Snowdrop. This taxon is particularly suited to developing such a quantitative framework because the populations are visited annually (facilitating data collection), they appear to have relatively stable abundances (suggesting relatively low stochasticity), and annual collections of relatively large quantities for international trade is likely to continue to for the foreseeable future. Furthermore, the establishment of such a quantitative framework will be a valuable example for those wishing to develop a similar system for other CITES taxa.
|Published in||International Expert Workshop on CITES Non-Detriment Findings|
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D. Kikodze, N. McGough, M. Smith, R. Wilford, L. Garrett, N. Memiadze, D. Kharazishvili, M. Manevelidze, G. Deisadze, T. Pantsulaia, and M. Eristavi. Trade in Georgian Snowdrops - A Roadmap to Sustainability. , February 2010.
Matthew J. Smith, Hesiquio Benitez Diaz, Margarita A. Clemente-Munoz, John Donaldson, Jon Hutton, Noel H. McGough, David H. Morgan, Colman O'Criodian, Thomasina E. Oldfield, Uwe Schippmann, and Richard J. Williams. Assessing the impacts of international trade on CITES-listed species: current practices and opportunities for scientific research, Biological Conservation, Elsevier, 2010.