Conservation and restoration of pine forest genetic resources in Mexico

被引:0
作者
Sáenz-Romero, C
Snively, AE
Lindig-Cisneros, R
机构
[1] Univ Michoacana, Inst Invest Recursos Nat, Morelia 58141, Michoacan, Mexico
[2] Cent Washington Univ, Ellensburg, WA 98926 USA
[3] Univ Michoacana, Inst Invest Quim Biol, Fac Biol, Morelia 58040, Michoacan, Mexico
关键词
Pinus; genetic resources; adaptive genetic variation; conservation; biodiversity; reforestation; ecological restoration; seed zones; Mexico;
D O I
暂无
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
Deforestation rates in Mexico are about 670,000 ha/year. This threatens the richness of forest genetic resources in Mexico, causing the disappearance of locally adapted populations and rare and endangered pine species. Mexico is one of the six megadiverse countries in the world, with half of the world's Pinus species. Pinus is one of the most economically and ecologically important forest genera in Mexico. We suggest that delineation of seed zones and the establishment of a network of Forest Genetic Resource Conservation Units (FGRCUs), linked with forest management and ecological restoration programs will protect this valuable resource. We estimate that FGRCUs should include 25 to 50 ha each, with at least one FGRCU for each priority species in each seed zone. We highlight the need for studies of adaptive genetic variation among pine populations and for new methodologies and techniques to suit ecological restoration under Mexican forest conditions. We briefly describe ongoing research on these topics on forests owned by a well-organized indigenous community in Nuevo San Juan Parangaricutiro, Michoacan, western Mexico.
引用
收藏
页码:233 / 237
页数:5
相关论文
共 61 条
[21]  
JASSO JM, 1970, UNASYLVA, V24, P70
[22]  
JASSOMATA J, 1978, ANAL RECURSOS GENETI, P423
[23]  
Ledig FT, 1998, J FOREST, V96, P32
[24]   HUMAN IMPACTS ON GENETIC DIVERSITY IN FOREST ECOSYSTEMS [J].
LEDIG, FT .
OIKOS, 1992, 63 (01) :87-108
[25]   Genetic diversity and the mating system of a rare Mexican pinon, Pinus pinceana, and a comparison with Pinus maximartinezii (Pinaceae) [J].
Ledig, FT ;
Capó-Arteaga, MA ;
Hodgskiss, PD ;
Sbay, H ;
Flores-López, C ;
Conkle, MT ;
Bermejo-Velázquez, B .
AMERICAN JOURNAL OF BOTANY, 2001, 88 (11) :1977-1987
[26]  
Ledig FT, 1999, EVOLUTION, V53, P91, DOI [10.2307/2640922, 10.1111/j.1558-5646.1999.tb05335.x]
[27]  
LEDIG FT, 1992, FOREST ECOL MANAG, V50, P153, DOI 10.1016/0378-1127(92)90321-Y
[28]   THE CONSERVATION OF DIVERSITY IN FOREST TREES - WHY AND HOW SHOULD GENES BE CONSERVED [J].
LEDIG, FT .
BIOSCIENCE, 1988, 38 (07) :471-479
[29]  
LEDIG FT, 1988, LL SCHAFFER LECTURES
[30]  
LEDIG FT, 1992, P 1 INT S DEV NAT RE, P325