Climate-based seed zones for Mexico: guiding reforestation under observed and projected climate change
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Seed zones for forest tree species are a widely used tool in reforestation programs to ensure that seedlings are well adapted to their planting environments. Here, we propose a climate-based seed zone system for Mexico to address observed and projected climate change. The proposed seed zone classification is based on bands of climate variables often related to genetic adaptation of tree species: mean coldest month temperature (MCMT) and an aridity index (AHM). The overlay of the MCMT and AHM for the 1961–1990 period resulted in 63 climate-based zones. Climate change observed over the last three decades has resulted in an increase of + 0.74 °C for MCMT and a shift toward overall drier conditions across Mexico. By the 2050s, MCMT is expected to increase by + 1.7 °C and AHM shifts further towards drier conditions. We recommend moving seed sources from warm, dry locations towards currently wetter and cooler planting sites, to compensate for climate change that has already occurred and is expected to continue for the next decades. We contribute a straight-forward climate-based seed zone system that allows practitioners to match seed procurement regions with planting regions under observed and anticipated climate change. Our transfer recommendations using climate-based zones can be implemented within the existing seed zone system, which often span large climate gradients.
KeywordsClimate change adaptation Reforestation Seed zones Seed transfer guidelines
This paper is an undertaking of the Forest Genetic Resources Working Group/North American Forest Commission/Food and Agricultural Organization of the United Nations. Funding was provided to CSR by the Mexican National Forest Commission (CONAFOR; special thanks to Jesús Carrasco-Gómez, Alfredo Arciniega-Mendoza, Fernando Miranda-Piedragil, Yanet B. García-Cruz and Cinthya V. Velarde-Nuño), an NSERC Discovery Grant (#330527) to AH, and Mexican Council of Science and Technology (CONACyT) scholarships to DCA (#253855) and to EGP (#291197). Valuable comments of the journal assigned Associated Editor and two anonymous reviewers helped to improve significantly the manuscript.
- Castellanos-Bolaños JF, Treviño-Garza EJ, Aguirre-Calderón OA, Jiménez-Pérez J, Velázquez-Martínez A (2010) Diversidad arbórea y estructura espacial de bosques de pino-encino en Ixtlán de Juárez, Oaxaca. Rev Mex Cienc Forest 1:39–52Google Scholar
- CONAFOR (2014) Establecimiento de Unidades Productoras y Manejo de Germoplasma Forestal-Especificaciones Tecnicas. Declaratoria de Vigencia de la Norma Mexicana NMX-AA-169-SCFI-2014, Diario Oficial de la Federación, Mexico City, MexicoGoogle Scholar
- Cuervo-Robayo A (2014) Fortaleciendo los análisis de cambio climático en la aplicación de los modelos de distribución potencial. Ph.D. thesis. Universidad Autónoma del Estado de México, MéxicoGoogle Scholar
- Hernández-Martínez J, López-Upton J, Vargas-Hernández JJ, Jasso-Mata J (2007) Zonas semilleras de pinus greggii var. australis en Hidalgo, México. Rev Fitotec Mex 30:241–249Google Scholar
- Ledig FT, Mápula-Larreta M, Bermejo-Velázquez B, Reyes-Hernández V, Flores-López C, Capó-Arteaga MA (2000) Locations of endangered spruce populations in México and the demography of Picea chihuahuana. Madroño 47:71–88Google Scholar
- Loya-Rebollar E, Sáenz-Romero C, Lindig-Cisneros RA, Lobit P, Villegas-Moreno JA, Sánchez-Vargas NM (2013) Clinal variation in Pinus hartwegii populations and its application for adaptation to climate change. Silvae Genet 62(3):86–95Google Scholar
- Morgenstern K (1996) Geographic variation in forest trees. Genetic basis and application of knowledge in silviculture. University of British Columbia Press, VancouverGoogle Scholar
- Rehfeldt GE (1988) Ecological genetics of Pinus contorta from the Rocky Mountains (USA): a synthesis. Silvae Genet 37:131–135Google Scholar
- Sáenz-Romero C, Tapia-Olivares BL (2008) Genetic variation in frost damage and seed zone delineation within an altitudinal transect of Pinus devoniana (P. michoacana) in Mexico. Silvae Genét 57(3):165–170Google Scholar
- Sáenz-Romero C, Lamy JB, Ducousso A, Musch B, Ehrenmann F, Delzon S, Cavers S, Chałupka W, Dağdaş S, Hansen JK, Lee SJ, Liesebach M, Rau HM, Psomas A, Schneck V, Steiner W, Zimmermann NE, Kremer A (2017) Adaptive and plastic responses of Quercus petraea populations to climate across Europe. Glob Change Biol 23(7):2831–2847CrossRefGoogle Scholar
- Zacarías-Eslava Y, Castillo R (2010) Comunidades vegetales templadas de la Sierra Juárez, Oaxaca: pisos altitudinales y sus posibles implicaciones ante el cambio climático. Bol Soc Bot Méx 87:13–28Google Scholar