Genetic variation in fragmented forest stands of the Andean oak Quercus humboldtii Bonpl. (Fagaceae)

被引：1
作者：
Fernandez-M., Juan F.
Sork, Victoria L.
机构：
[1] Univ Paris Sud 11, Lab Ecol Systemat & Evolut, F-91405 Orsay, France
[2] Univ Calif Los Angeles, Dept Ecol & Evolutionary, Los Angeles, CA 90095 USA
来源：
BIOTROPICA | 2007年 / 39卷 / 01期
关键词：
Andes; Fagaceae; forest fragmentation; genetic diversity; microsatellites; Quercus humboldtii; South America;
D O I：
暂无
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Quercus humboldtii is a montane forest dominant species in Colombia, which has experienced significant habitat loss. Using three microsatellite loci, we compared the genetic diversity of adults and seedlings in fragments of small and large size. Results show high genetic diversity, comparable to other temperate oak species (H-o = 0.813, H-e = 0.780, and f = -0.044). However, allelic richness reduction in seedlings of the most fragmented part of the landscape, suggested restricted gene flow and risk of future genetic bottlenecks, if larger tracts of forest disappear.
引用
收藏
页码：72 / 78
页数：7
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