传粉者介导的对不同土壤水分含量地点间以及不同养分有效性水平间花性状的选择存在差异。
Pollinator-Mediated Selection on Floral Traits of Differs Between Sites With Different Soil Water Contents and Among Different Levels of Nutrient Availability.
作者信息
Wu Yun, Duan Xuyu, Tong Zhaoli, Li Qingjun
机构信息
School of Architecture and Civil Engineering, Xihua University, Chengdu, China.
Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Yunnan University, Kunming, China.
出版信息
Front Plant Sci. 2022 Mar 1;13:807689. doi: 10.3389/fpls.2022.807689. eCollection 2022.
Abiotic environmental factors are predicted to affect plant traits and the intensity of plant-pollinator interactions. However, knowledge of their potential effects on pollinator-mediated selection on floral traits is still limited. We separately estimated the effects of soil water (two sites with different soil water contents) and N-P-K nutrient availability (different levels of nutrient addition) on pollinator-mediated selection on floral traits of (an insect-pollinated perennial herbaceous species). Our results demonstrated that floral traits, plant reproductive success and pollinator-mediated selection on floral traits varied between sites with different soil water contents and among different levels of nutrient addition. The strength of pollinator-mediated selection was stronger at the site with low soil water content than at the site with high soil water content, and first decreased and then increased with increasing N-P-K nutrient addition. Our results support the hypothesis that abiotic environmental factors influence the importance of pollinators in shaping floral evolution.
预计非生物环境因素会影响植物性状以及植物与传粉者相互作用的强度。然而，关于它们对传粉者介导的花部性状选择的潜在影响的了解仍然有限。我们分别估计了土壤水分（两个土壤水分含量不同的地点）和氮磷钾养分有效性（不同水平的养分添加）对传粉者介导的[一种虫媒多年生草本植物]花部性状选择的影响。我们的结果表明，花部性状、植物繁殖成功率以及传粉者介导的花部性状选择在不同土壤水分含量的地点之间以及不同养分添加水平之间存在差异。传粉者介导的选择强度在土壤水分含量低的地点比在土壤水分含量高的地点更强，并且随着氮磷钾养分添加量的增加先降低后增加。我们的结果支持了非生物环境因素影响传粉者在塑造花部进化中的重要性这一假设。
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