Habitat fragmentation from in situ oil sands: biodiversity responses and mitigation

原位油砂造成的栖息地破碎化：生物多样性应对和缓解

基本信息

批准号：
498955-2016
负责人：
Nielsen, Scott
金额：
$ 22.91万
依托单位：
University of Alberta
依托单位国家：
加拿大
项目类别：
Collaborative Research and Development Grants
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=694813
关键词：
Habitat fragmentation situ oil sands

项目摘要

In situ oil sands represent one of the fastest growing footprints in Alberta's boreal forest raising environmental concerns over its effects on biodiversity. Although the overall footprint of in situ disturbances is relatively small (~5-15% of landscape), their effects are likely compounded by fragmentation (edge effects) and changes in connectivity. Indeed, much of the fragmentation from in situ disturbances is due to linear disturbances such as pipelines, roads, and seismic lines. These features alter movements of organisms thereby changing biotic interactions. Recent research has demonstrated that the federally threatened woodland caribou is sensitive to these changes via wolf-deer-caribou dynamics. However, little is known about responses to other non-vertebrate taxa, as well as how these responses vary as a function of amount of footprint, amount of fragmentation, and time since disturbance (lag effects), or potentially their interaction. In this project we will assess the impacts of in situ oil sands for a suite of biodiversity indicators and habitats in order to assess the scale and potential lag effects of impacts and subsequently to develop and test potential mitigation and restoration strategies including conservation offsets. Results of this research will inform biodiversity management of in situ developments and help guide where restoration strategies would be most cost-effective and beneficial to biodiversity conservation.

原位油砂代表了艾伯塔省北方森林中增长最快的足迹之一，对其对生物多样性的影响提出了环境问题。尽管原位干扰的总体足迹相对较小（占景观的5-15％），但它们的影响可能会因碎片化（边缘效应）和连通性变化而复杂。实际上，原位干扰的许多碎片化都是由于管道，道路和地震线等线性干扰所致。这些特征改变了生物体的运动，从而改变了生物相互作用。最近的研究表明，受联邦威胁的伍德兰驯鹿通过沃尔夫·卡里布（Wolf-Deer-Caribou）动力学对这些变化敏感。但是，对其他非魔力分类单元的反应知之甚少，以及这些反应如何随着占用数量，碎片量和自动化（滞后效应）或可能与之相互作用的时间而变化。在该项目中，我们将评估原位油砂对一组生物多样性指标和栖息地的影响，以评估影响的规模和潜在滞后效应，并随后开发和测试潜在的缓解措施和恢复策略，包括保护偏移。这项研究的结果将为现场发展的生物多样性管理提供信息，并指导恢复策略对生物多样性保护最具成本效益和有益。