成功的授粉种子混播包括在一定的播种总密度范围内,草种密度低,禁草丰富度高

IF 2.8 3区 环境科学与生态学 Q2 ECOLOGY
Uta Müller, Bethanne Bruninga‐Socolar, Julia Brokaw, Julia Schreiber, Daniel P. Cariveau, Neal M. Williams
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引用次数: 0

摘要

恢复和改善授粉者栖息地是缓解授粉者因栖息地丧失和其他压力因素而减少的重要方法。野花种植可以提供觅食资源,这些野花由对授粉者友好的植物种子混合而成。尽管有明确的证据表明这种种植对蜜蜂和其他授粉者有益,但人们对多种混合种子设计参数的变化如何随着时间的推移影响花卉资源的了解还很有限。这些信息对于提高不同生境应用的有效性和降低种子成本至关重要,而种子成本仍然是采用这些生境的障碍。我们进行了一项不完全因子田间试验,以测试混合种子的密度、多样性和禁草与禾本科植物的比例对花卉资源可用性和所种植植物的物候覆盖率的影响。我们在美国北加州中央谷地和中西部高草草原这两个地区的野花混种重复地块中,对连续三年整个开花季节的花卉面积和物候覆盖率进行了量化。当完全重复不同的种子密度时(例如,明尼苏达州的禁草种子与禾本科种子比例较高,或加利福尼亚州仅播种禁草种子),播种密度对花卉面积和花卉物候覆盖率没有进一步影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Successful pollinator seed mixes include low grass density and high forb richness across a range of total seeding densities
Pollinator habitat restorations and enhancements are an important approach to mitigate pollinator declines due to habitat loss and other stressors. Foraging resources can be provided by wildflower plantings grown from seed mixes composed of pollinator‐friendly plant species. Despite clear evidence on the benefits of such plantings for bees and other pollinators, there is limited knowledge on how variation in multiple seed mix design parameters affects floral resources over time. Such information is crucial to improve the effectiveness of different habitat applications and to potentially lower seed costs, which remain an impediment to adoption. We conducted an incomplete factorial field experiment to test the impacts of density, diversity, and forb:grass ratio of seed mixes on floral resource availability and phenological coverage of the resulting plantings. We quantified floral area and phenological coverage over the whole blooming season for three consecutive years in replicated plots of wildflower mixes in two regions of the U.S.A, Northern California's Central Valley and Midwestern Tallgrass Prairie. When different seed densities were fully replicated (e.g. within high forb:grass seed ratios in Minnesota, or forb‐only seedings in California), seeding density had no further impact on floral area and floral phenological coverage.
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来源期刊
Restoration Ecology
Restoration Ecology 环境科学-生态学
CiteScore
6.50
自引率
15.60%
发文量
226
审稿时长
12-24 weeks
期刊介绍: Restoration Ecology fosters the exchange of ideas among the many disciplines involved with ecological restoration. Addressing global concerns and communicating them to the international research community and restoration practitioners, the journal is at the forefront of a vital new direction in science, ecology, and policy. Original papers describe experimental, observational, and theoretical studies on terrestrial, marine, and freshwater systems, and are considered without taxonomic bias. Contributions span the natural sciences, including ecological and biological aspects, as well as the restoration of soil, air and water when set in an ecological context; and the social sciences, including cultural, philosophical, political, educational, economic and historical aspects. Edited by a distinguished panel, the journal continues to be a major conduit for researchers to publish their findings in the fight to not only halt ecological damage, but also to ultimately reverse it.
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