Non-native plants alter conditions and can reduce the effectiveness of restoration tools. Under these conditions, adding native, locally adapted seeds to favor establishment of native plant communities may provide a potential restoration strategy. We explored the efficacy of soil disturbance and the addition of native seed to restore native plant and arthropod communities in landscapes dominated by Kleberg bluestem (Dichanthium annulatum [Forssk.] Stapf, Old World bluestem grasses, OWB) in summers 2011−2013; our study coincided with severe drought. We compared vegetation and arthropods on disked plots with and without seed (experimental plots), as well as plots within adjacent, undisturbed OWB monocultures. Adding seeds increased cover of native plants and reduced cover of OWBs relative to unseeded plots and undisturbed OWB monocultures. Most of the plants we recorded in seeded plots were not included in the seed mix; we hypothesize that arthropods may have been consuming the added seed rather than the seed bank, permitting native plants in the seed bank to establish. Adding seed also increased arthropod species richness, which was more pronounced as drought severity decreased. During severe drought, arthropod abundance in experimental plots was comparable with undisturbed OWB monocultures, despite the absence of vegetation after disking. However, as drought subsided, undisturbed OWB monocultures had more arthropods than experimental plots. Non-native arthropods, particularly herbivores, were positively associated with OWBs; adding seed was associated with reduced dominance of both OWBs and nonnative arthropods. Reducing dominance of OWBs by adding seed was also associated with reduced dominance of some predators that consume non-native arthropod prey. Understanding how communities respond to multiple disturbances seems especially important to inform restoration strategies given that changes in climate patterns and establishment of invasive species are likely to be more common and widespread.

非本地植物会改变条件，并且会降低恢复工具的有效性。在这些条件下，添加本地适应当地条件的种子以促进本地植物群落的建立可能会提供一种潜在的恢复策略。我们探索了土壤扰动的功效以及添加天然种子以恢复以Kleberg bluestem（Dichanthium annulatum）为主的景观中的天然植物和节肢动物群落的功效。[Forssk。] Stapf，旧世界bluestem草，OWB），2011-2013年夏季；我们的研究恰逢严重干旱。我们比较了带或不带种子的圆盘样地上的植被和节肢动物（实验样地），以及相邻，未受干扰的OWB单种栽培内的样地。相对于未播种的田地和未受干扰的OWB单株栽培，添加种子可增加原生植物的覆盖率并减少OWB的覆盖率。我们在播种地上记录的大多数植物都没有包含在种子混合物中。我们假设节肢动物可能正在消耗添加的种子而不是种子库，从而允许种子库中的天然植物建立。添加种子也增加了节肢动物的丰富度，这随着干旱严重程度的降低而更加明显。在严重干旱期间 尽管耕地后没有植被，但试验田中节肢动物的丰度可与未干扰的OWB单种养殖相媲美。但是，随着干旱的消退，不受干扰的OWB单种养殖的节肢动物比实验田更多。非原生节肢动物，特别是草食动物，与OWBs呈正相关。增加种子与OWB和非本地节肢动物的优势减少有关。通过添加种子减少OWB的优势，也与某些消耗非本地节肢动物猎物的天敌的优势减少有关。鉴于气候模式的变化和入侵物种的建立可能更加普遍和广泛，因此了解社区如何应对多种干扰似乎对于制定恢复策略尤为重要。尽管打碟后没有植被。但是，随着干旱的消退，不受干扰的OWB单种养殖的节肢动物比实验田更多。非原生节肢动物，特别是草食动物，与OWBs呈正相关。增加种子与OWB和非本地节肢动物的优势减少有关。通过添加种子减少OWB的优势，也与某些消耗非本地节肢动物猎物的天敌的优势减少有关。鉴于气候模式的变化和入侵物种的建立可能更加普遍和广泛，因此了解社区如何应对多种干扰似乎对于制定恢复策略尤为重要。尽管打碟后没有植被。但是，随着干旱的消退，不受干扰的OWB单种养殖的节肢动物比实验田更多。非原生节肢动物，特别是草食动物，与OWBs呈正相关。增加种子与OWB和非本地节肢动物的优势减少有关。通过添加种子减少OWB的优势，也与某些消耗非本地节肢动物猎物的天敌的优势减少有关。鉴于气候模式的变化和入侵物种的建立可能更加普遍和广泛，因此了解社区如何应对多种干扰似乎对于制定恢复策略尤为重要。特别是草食动物，与OWB呈正相关；增加种子与OWB和非本地节肢动物的优势减少有关。通过添加种子减少OWB的优势，也与某些消耗非本地节肢动物猎物的天敌的优势减少有关。鉴于气候模式的变化和入侵物种的建立可能更加普遍和广泛，因此了解社区如何应对多种干扰似乎对于制定恢复策略尤为重要。特别是草食动物，与OWB呈正相关；增加种子与OWB和非本地节肢动物的优势减少有关。通过添加种子减少OWB的优势，也与某些消耗非本地节肢动物猎物的天敌的优势减少有关。鉴于气候模式的变化和入侵物种的建立可能更加普遍和广泛，因此了解社区如何应对多种干扰似乎对于制定恢复策略尤为重要。