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

• 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

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.**

苔藓植物是小型的群体植物（通常不到10厘米高），在北方森林中数量丰富且非常多样化。它们生活在森林中的不同栖息地，如枯木、树干和裸露的矿物质土壤中，许多物种只能生活在这些零散的栖息地中。它们不是用种子繁殖，而是用孢子和营养结构繁殖，虽然这些结构非常小，但人们并不真正知道它们能从母体植物传播多远到新的栖息地。我们也不明白，围绕着这种植物的森林类型是如何影响它们产生孢子的能力的。这意味着我们不知道通过森林管理或其他开发方式改变北方景观将如何影响Brittites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殖民地的栖息地之间的最大距离，以及给定区域的森林类型和干扰如何影响brabrante物种的存在及其穿越景观的能力。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很大变化，许多brabrite物种现在已经稀少，但在加拿大仍然相当普遍。有了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地改变北方景观，并降低brabrante物种继续穿越景观的能力。