Birch hybridization in Thistilfjördur, North-east Iceland during the Holocene

• Main Authors: Lilja Karlsdóttir 1952-, Margrét Hallsdóttir 1949-, Ólafur Eggertsson 1964-, Ægir Þór Þórsson 1970-, Kesara Margrét Jónsson 1951-
• Other Authors: Landbúnaðarháskóli Íslands
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2014
• Subjects: Birki; Fjalldrapi; Lágar; Monolith; Betula nana; Dwarf birch; Iceland; Subarctic
• Online Access: http://hdl.handle.net/1946/19878

Past episodes of birch hybridization in Iceland were studied by pollen analysis. The low stature and polycormic form of downy birch Betula pubescens in the subarctic probably results from such hybridization with the dwarf birch Betula nana. Two previous studies in different regions in Iceland reveal...