Habitat effects on behaviour and ecology of forest generalist birds

栖息地对森林通才鸟类行为和生态的影响

• 批准号: 227580-2009
• 负责人: Otter, Kenneth
• 金额: $ 1.75万
• 依托单位: University of Northern British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=524023
• 关键词: Habitat; effects; behaviour; ecology; forest

Human land use has the potential to impact the structure of habitats. Following logging, regeneration of forests occurs either through natural re-growth or intentional planting, yet these young forests often lack many of the resources found in mature forests. Such alteration of the landscape may provide relatively poor habitat to birds and other species that settle here. Further, regenerating forests often differ considerably in tree species from those originally logged. These 'mosaics' of habitat types often abut one another, creating abrupt zones of contact between species that typically occupy different forests. This can lead to cross-species matings (hybridization) between normally habitat-isolated species. Despite this potential impact, we often overlook how human land use affects the quality of the habitat and the induced interactions this can create among generalist bird species.

人类的土地利用有可能影响栖息地的结构。在伐木之后，森林的再生要么是通过自然再生长，要么是通过故意种植，但这些年轻的森林往往缺乏成熟森林中的许多资源。这种景观的改变可能会给栖息在这里的鸟类和其他物种提供相对较差的栖息地。此外，再生林的树种往往与最初砍伐的树种有很大不同。这些栖息地类型的“马赛克”往往彼此毗邻，在通常占据不同森林的物种之间创造了突如其来的接触地带。这可能导致通常与栖息地隔离的物种之间的跨物种交配(杂交)。尽管有这种潜在的影响，但我们经常忽略了人类土地利用如何影响栖息地的质量，以及这可能在多面手鸟类之间产生的诱导相互作用。