Common, showy, and perennial species dominate a restoration species pool
Common, showy, and perennial species dominate a restoration species pool
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DOI：
10.1111/rec.13969
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发表时间：
2023-06-25
影响因子：
3.2
通讯作者：
Albrecht，Matthew A.
中科院分区：
文献类型：
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作者：
Kaul，Andrew D.;Barash，Michael;Albrecht，Matthew A.
本地种子供应商是恢复项目种质的主要来源;然而，大多数植物物种都无法从商业上获得。供应商种植和销售的物种类型的偏好可能会限制参考社区和从种子混合物建立的重建社区之间的相似性。我们测试了恢复物种池是否显示出对某些物种组的偏好，重点是欧扎克高地生态区（美国中部大陆）。我们确定了1,082种适合该地区高地栖息地恢复项目的候选草本植物物种，然后调查了9个区域种子供应商，以评估其商业可用性。商业上可用的物种更有可能是杂类草禾本科植物，多年生植物一年生植物，和常见的物种有较大的范围和适度的保守性分数。在杂类草，较高的物种和那些具有较长的开花时间的青睐。与来自林地和森林的物种相比，更有可能从多个供应商获得与开放生境（如草地）有亲和力的物种。令人鼓舞的是，454（42%）的物种在这个区域池。然而，这意味着该地区的大多数物种不太可能被包括在种子混合物中，除非它们是从残余种群中手工收集的。这个恢复池有利于常见和艳丽的物种，这与以前的研究一致，表明这些种类的物种往往占主导地位的种子混合和恢复的植物群落。我们确定了39种接受调查的任何供应商都无法提供的物种，我们建议将其作为扩大奥扎克恢复物种库的候选物种。
Native seed vendors are a primary source of germplasm for restoration projects; however, most plant species are not commercially available. Preferences in the types of species that vendors grow and sell may limit the similarity between reference communities and reconstructed ones established from seed mixes. We tested whether a restoration species pool shows preference for certain groups of species, focusing on the Ozark Highland Ecoregion (midcontinent United States). We identified the pool of 1,082 candidate herbaceous plant species appropriate for restoration projects on upland habitats in this region, and then surveyed nine regional seed vendors to assess their commercial availability. Commercially available species were more likely to be forbs over graminoids, perennials over annuals, and common species with larger ranges and moderate conservatism scores. Within forbs, taller species and those with longer bloom durations were favored. Species with affinity to open habitats (e.g. grassland) were more likely to be available from multiple vendors than those from woodlands and forests. Encouragingly, 454 (42%) of the species in this regional pool were available. However, this means that most species in the region are not likely to be included in seed mixes, unless they are hand‐collected from remnant populations. This restoration pool favors common and showy species, which is consistent with previous studies showing these kinds of species tend to dominate seed mixes and restored plant communities. We identified 39 species that were not available from any of the vendors surveyed, which we recommend as candidates for expansion of the Ozark restoration species pool.