已收录 268921 条政策
 政策提纲
  • 暂无提纲
Glacial refugia and post-glacial colonization patterns in European bryophytes
[摘要] Most species are assumed to have survived south or east of the ice sheet covering northern Europe during the last glacial maximum. Molecular and macrofossil evidence suggests, however, that some species may have survived in ice-free areas in Scandinavia. In plants, inbreeding and vegetative growth are associated with low genetic load and enhanced survival in small, isolated populations. These characteristics are often found in bryophytes, possibly allowing them to survive extreme conditions in isolated refugia and also within ice sheets.
[发布日期]  [发布机构] 
[效力级别]  [学科分类] 植物学
[关键词]  [时效性] 
   浏览次数:2      统一登录查看全文      激活码登录查看全文