Occurrence and landscape ecology of a rare disjunct maple species, Acer pycnanthum, and comparison with Acer rubrum
Occurrence and landscape ecology of a rare disjunct maple species, Acer pycnanthum, and comparison with Acer rubrum
复制标题
稀有间断枫树种红花枫的发生和景观生态学，以及与红枫的比较
DOI：
10.1139/a04-007
复制
发表时间：
2004
影响因子：
5.7
通讯作者：
Asako Kitazawa
中科院分区：
文献类型：
--
作者：
B. V. Barnes;I. Saeki;Asako Kitazawa
日本红枫（Acer pycnanthum K. Koch）是红枫槭（Acer rubrum L.）的分离姊妹种。红枫槭是北美东部分布最广泛和最丰富的树种之一，但在日本本州中部却很少见。虽然其形态与红草的相似性是众所周知的，但对其发生的地点和群落、自然历史特征、有性和无性再生以及其有限发生的原因知之甚少。我们定位和描述了所有已知的地点，总面积小于18公顷，支持三个或更多无性系群体。所描述的30个生态系统中有27个是残留的自然种群，它们被限制在三个河流流域的较低斜坡上，由于独特的地质、地形和土壤特性，湿地已经持续存在并反复形成了数百万年。红槭（Acer pycnanthum）是森林湿地的一种特有物种，生长在多种渗透和洪泛平原生态系统中，其特征是……
Japanese red maple, Acer pycnanthum K. Koch, is the disjunct sister species of the red maple, Acer rubrum L. Whereas A. rubrum is one of the most widely distributed and abundant species in eastern North America, A. pycnanthum is rare in central Honshu, Japan. Although its morphological similarity to A. rubrum is well known, little is known about the sites and communities where it occurs, its natural history characteristics, sexual and asexual regeneration, and the reasons for its restricted occurrence. We located and described all known sites, totaling <18 ha, which supported populations of three or more clones. Twenty-seven of the 30 ecosystems described are remnant natural populations, which are confined to lower slopes of three river basins where wetlands have persisted and recurrently formed for millions of years due to unique geological, topographic, and soil properties. Acer pycnanthum, an obligate species of forested wetlands, occurs on diverse seepage and floodplain ecosystems that are characteriz...