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The importance of fire in the success of a 15 hectare subtropical heathland translocation
Australian Journal of Botany ( IF 0.9 ) Pub Date : 2019-01-01 , DOI: 10.1071/bt19064
Peter Dufourq , Alison Shapcott

Fire is a key factor in the maintenance of many ecosystems; however, little is known on how it affects the success of translocated fire-dependent plant species and communities. Further, translocation success is currently limited, creating uncertainty around the effectiveness of translocations in mitigating the negative impacts of urbanisation on biodiversity. Translocation evaluations may improve future outcomes by providing vital information: therefore, the aim of the present study was to investigate the long-term success of a large-scale subtropical heathland translocation as well as the impacts of a fire management regime eight years after it was completed. Original performance criteria and monitoring data combined with new site surveys were utilised to assess the ongoing success of the translocation. Specifically, the structure and composition of the heath vegetation and the population size and demographic structure of five specific threatened plant species were assessed. Results showed that translocation still met the performance criteria requirements and so can continue to be classed as a success. Fire played a key role in enabling the vegetation to meet the performance criteria by promoting regeneration of target species and maintaining community composition. This was likely supported by the immediate availability of seed through the preservation of the seedbank. Long-term success in translocated fire-dependent plant species and communities will depend largely on the application of appropriate fire regimes.

中文翻译:

火对 15 公顷亚热带荒地迁移成功的重要性

火是维持许多生态系统的关键因素;然而,人们对它如何影响易地依赖火的植物物种和群落的成功知之甚少。此外,易地成功目前是有限的,因此易地在减轻城市化对生物多样性的负面影响方面的有效性产生了不确定性。易地评估可以通过提供重要信息来改善未来的结果:因此,本研究的目的是调查大规模亚热带荒地易地的长期成功以及火灾管理制度在其实施八年后的影响。完全的。使用原始性能标准和监测数据结合新的现场调查来评估易位的持续成功。具体来说,评估了荒地植被的结构和组成以及五种特定受威胁植物物种的种群规模和人口结构。结果表明易位仍然满足性能标准要求,因此可以继续被归类为成功。火通过促进目标物种的更新和维持群落组成,在使植被满足性能标准方面发挥了关键作用。通过保存种子库可以立即获得种子,这可能支持了这一点。易地依赖火的植物物种和群落的长期成功将在很大程度上取决于适当火势的应用。结果表明易位仍然满足性能标准要求,因此可以继续被归类为成功。火通过促进目标物种的更新和维持群落组成,在使植被满足性能标准方面发挥了关键作用。通过保存种子库可以立即获得种子,这可能支持了这一点。易地依赖火的植物物种和群落的长期成功将在很大程度上取决于适当火势的应用。结果表明易位仍然满足性能标准要求,因此可以继续被归类为成功。火通过促进目标物种的更新和维持群落组成,在使植被满足性能标准方面发挥了关键作用。通过保存种子库可以立即获得种子,这可能支持了这一点。易地依赖火的植物物种和群落的长期成功将在很大程度上取决于适当火势的应用。通过保存种子库可以立即获得种子,这可能支持了这一点。易地依赖火的植物物种和群落的长期成功将在很大程度上取决于适当火势的应用。通过保存种子库可以立即获得种子,这可能支持了这一点。易地依赖火的植物物种和群落的长期成功将在很大程度上取决于适当火情的应用。
更新日期:2019-01-01
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