Towards bryophyte landscape ecology in boreal eastern Canada: bryophyte population and community dynamics at the landscape scale

加拿大北部东部苔藓植物景观生态学：景观尺度上的苔藓植物种群和群落动态

基本信息

批准号：
RGPIN-2015-06086
负责人：
Fenton, Nicole
金额：
$ 1.53万
依托单位：
Université du Québec en Abitibi-Témiscamingue
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2019
资助国家：
加拿大
起止时间：
2019-01-01 至 2020-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=678537
关键词：
Towards bryophyte landscape ecology boreal

项目摘要

Bryophytes are small colonial plants (generally less than 10cm tall) that are abundant and very diverse in boreal forests. They live in different habitats in the forest, such as dead wood, tree trunks and exposed mineral soil, and many species can only live in these patchy habitats. Instead of seeds they reproduce with spores and vegetative structures and while these structures are very small it is not really known how far they can travel from the mother plant to colonise new habitats. We also don't understand how the forest types surrounding the bryophytes influence their ability to make spores. This means that we don't know how changing the boreal landscape by forest management or other development types will influence the abundance of species of bryophytes. With this research program I propose to determine the maximum distance between habitats that permits new individuals to establish new colonies, and how the types of forests and disturbances in a given area affect bryophyte species presence and their abilities to travel across the landscape. This is important to determine, as in European countries where the forest landscape has been greatly changed by forest management and development, many bryophyte species are now rare but are still fairly common in Canada. With the results of this research program we could develop guidelines to make sure that we don't change the boreal landscape too much, and reduce bryophyte species' ability to continue travelling across the landscape.**

苔藓植物是小型群落植物（通常高度不到 10 厘米），在北方森林中数量丰富且种类繁多。它们生活在森林中不同的栖息地，如枯木、树干和裸露的矿质土壤，许多物种只能生活在这些斑驳的栖息地中。它们不使用种子来繁殖，而是用孢子和营养结构进行繁殖，虽然这些结构非常小，但我们并不知道它们可以从母体植物迁移到新的栖息地多远。我们也不了解苔藓植物周围的森林类型如何影响它们产生孢子的能力。这意味着我们不知道通过森林管理或其他开发类型改变北方景观将如何影响苔藓植物物种的丰富度。通过这项研究计划，我建议确定允许新个体建立新群落的栖息地之间的最大距离，以及特定区域的森林类型和干扰如何影响苔藓植物物种的存在及其穿越景观的能力。确定这一点很重要，因为在欧洲国家，森林景观因森林管理和开发而发生了巨大变化，许多苔藓植物物种现在很稀有，但在加拿大仍然相当常见。根据这项研究计划的结果，我们可以制定指导方针，以确保我们不会过多改变北方景观，并降低苔藓植物物种继续穿越景观的能力。 **