Abstract

Within the Analytic Hierarchy Process (AHP) framework, a hierarchical model was created considering anthropogenic, genetic and ecological criteria and sub-criteria that directly affect Douglas-fir (Pseudotsuga menziesii (Mirb.)) risk of extinction in central Mexico. The sub-criteria values were standardized, weighted, and ordered by importance in a pairwise comparison matrix; the model was mathematically integrated to quantify the degree of extinction risk for each of the 29 populations present in the study area. The results indicate diverse levels of risk for the populations, ranging from very low to very high. Estanzuela, Presa Jaramillo, Peñas Cargadas and Plan del Baile populations have very low risk, with values less than 0.25. On the other hand, Vicente Guerrero, Morán, Minatitlán, La Garita and Tonalapa populations have very high risk (>0.35) because they are heavily influenced by anthropogenic (close to roads and towns), ecological (presence of exotic species and little or no natural regeneration) and genetic (presence of mature to overmature trees and geographic isolation) factors. In situ conservation activities, prioritizing their implementation in populations at most risk is highly recommended; in addition, germplasm collection for use of assisted gene flow and migration approaches, including artificial reforestation, should be considered in these locations.

Details

Title
Extinction Risk of Pseudotsuga Menziesii Populations in the Central Region of Mexico: An AHP Analysis
Author
López-Upton, Javier; Valdez-Lazalde, J Rene; Ventura-Ríos, Aracely; Vargas-Hernandez, J Jesús; Guerra-de-la-Cruz, Vidal
Pages
1598-1612
Publication year
2015
Publication date
2015
Publisher
MDPI AG
e-ISSN
19994907
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1695306480
Copyright
Copyright MDPI AG 2015