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How far is it to your local? A survey on local provenance use in New South Wales

机译:到您当地有多远?新南威尔士州本地物产使用情况调查

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The decision as to where to source seed is one of the most critical in restoration projects. Locally collected seed is often recommended, or even contractually required, because it is assumed to be adapted to local conditions and therefore result in superior survival and growth rates, conferring a greater probability of restoration success. The perceived advantages, which include retaining the genetic 'integrity' of the site, are centred around the avoidance of outbreeding depression and hybridization. These traditional reasons for using locally collected seed need to be reconsidered in the light of rapidly changing climatic and other environmental conditions; plants that are locally adapted now may not be locally adapted in future. Understanding the current usage of local provenance is pivotal to discussions on its appropriateness under climate change. We present the results of a survey of restoration practitioners in New South Wales on attitudes and practices in relation to the use of local provenance. We found that whilst the majority of practitioners preferentially use local provenance seeds, the actual definition of local provenance varied amongst respondents. Whilst 80% of participants believe that projections of future climate change are relevant to restoration projects, there is an apparent reluctance to actively manage for this eventuality. However, many respondents are in favour of a review of seed-sourcing policy/guidelines to allow for the inclusion of non-local provenance material. Implications of the survey for potential changes to guidelines to better prepare for anticipated changing conditions are discussed.
机译:在哪里恢复种子,是恢复项目中最关键的决定之一。通常建议,甚至按合同要求,从当地收集种子,因为假定该种子适合当地条件,因此可以提高生存率和生长率,从而使恢复成功的可能性更大。所感知到的优势(包括保留该位点的遗传“完整性”)集中在避免近亲杂交和杂交方面。考虑到迅速变化的气候和其他环境条件,需要重新考虑使用当地收集的种子的这些传统原因;现在本地适应的工厂将来可能不会在本地进行适应。了解当地来源的当前用法对于讨论其在气候变化下的适用性至关重要。我们介绍了对新南威尔士州的恢复从业人员的调查结果,调查结果涉及与使用本地出处有关的态度和做法。我们发现,尽管大多数从业人员优先使用本地出处的种子,但受访者对本地出处的实际定义有所不同。尽管80%的参与者认为对未来气候变化的预测与恢复项目有关,但显然不愿意为这种情况进行积极管理。但是,许多答复者赞成对种子采购政策/指南进行审查,以允许纳入非本地出处材料。讨论了调查可能对指南的潜在更改以更好地为预期的变化情况做准备的含义。

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