1. Concern for conservation of seagrass habitat has prompted international transplantation‐style restoration efforts. A recent review of these restoration efforts has highlighted the low success associated with small‐scale restorations, yet scaling up transplantation effort may be too costly for underfunded regions. Small‐scale transplant survival can be enhanced with alleviation of two underlying issues: restoration site selection and donor site selection.
2. To investigate appropriate donor source selection, donor site environmental influence on seagrass (Halodule wrightii) transplant survival was examined by transplanting donor cores from two environmentally disparate sites to a transplantation site with limited environmental uncertainties. Donor sites were chosen to represent either end of a benthic light gradient (high versus low) to elucidate seagrass resilience to transplantation stress, with respect to donor site conditions.
3. After total loss of the first trial, a second trial was conducted with stabilizing mesh placed over transplants to reduce stingray bioturbation. The second trial resulted in 100% survival of high light transplants after 12 months and moderate survival (30–60%) of low light transplants for the first six months.
4. At 18 months, the second trial ended after sediment burial from a hurricane. One year post‐burial, a patch of H. wrightii recovered at the high light transplant site; after six years the patch expanded to approximately 74 m², an area 37‐fold larger than originally planted.
5. Results from this transplant experiment provide evidence that donor environment plays a role in transplant resilience. The transplants sourced from high light had 47% greater leaf area per shoot, were more resistant to transplantation stress, and recovered following an extreme event relative to low light transplants. Therefore, selection of donor plants with more resilience features, a transplantation site with limited environmental uncertainties, and adaptive intervention can enhance seagrass resilience at a small planting scale.

中文翻译：

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海草供体来源对小规模移植复原力的影响

1. 对保护海草栖息地的关注促使了国际移植式修复工作的开展。最近对这些修复工作的回顾强调了小规模修复的成功率较低，但是对于资金不足的地区，扩大移植工作的成本可能太高。缓解两个潜在的问题可以提高小规模移植的存活率：恢复部位的选择和供体部位的选择。
2. 为了研究合适的供体来源选择，通过将供体核心从两个环境不同的位置移植到环境不确定性有限的移植位置，研究了供体位点环境对海草（Whalodule wrightii）移植存活的影响。选择供体位点以代表底栖光梯度的任一端（高与低），以阐明海草对移植应力的适应力。
3. 在第一次试验完全失败后，进行了第二次试验，将稳定网布放置在移植物上以减少黄貂鱼的生物扰动。第二项试验导致高光移植物在12个月后存活率100％，低光移植物在前6个月中度存活率（30-60％）。
4. 在18个月后，第二次审判在飓风沉积物埋葬之后结束。埋葬一年后，在高光移植部位发现了一片H. wrightii。六年后，斑块扩大到大约74 m ²，面积比最初种植的大37倍。
5. 该移植实验的结果提供了证据，表明供体环境在移植的适应力中发挥了作用。相对于弱光移植，来自强光的移植物每枝叶面积增加47％，对移植物的抵抗力更高，并且在极端事件发生后得以恢复。因此，选择具有更多抗逆性的供体植物，环境不确定性有限的移植地点以及适应性干预措施可以在较小的种植规模下增强海草的抗逆性。