Uncovering the mechanisms driving co-flowering community assembly: integrating flowering and floral trait distribution patterns via a novel use of network analysis

揭示驱动共花群落组装的机制：通过网络分析的新颖应用整合开花和花性状分布模式

• 批准号: 1931163
• 负责人: Gerardo Arceo-Gomez
• 金额: $ 69.98万
• 依托单位: East Tennessee State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-01-15 至 2024-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1931163&HistoricalAwards=false
• 关键词: Uncovering; mechanisms; driving; co; flowering

To predict how environmental change will impact the long-term stability and species composition of plant communities it is critical to understand the ecological processes that determine community membership. This research will evaluate the combined importance of two ecological processes operating simultaneously in multi-species communities. First, competition between plant species for pollinators may result in the loss of the inferior competitor. Second, facilitation may cause both species to receive more pollinator visits and result in species co-occurrence. By measuring pollinator visits and flower traits attractive to pollinators the researchers will quantify the simultaneous action of competition and facilitation. These data will allow the researchers to better understand patterns of species coexistence and community composition. This research will also advance the science education of under-represented groups and first-generation college students in the Appalachian region. In addition, outreach activities associated with pollinator gardens at nature centers will increase awareness of pollination as a key ecosystem service.The project will use network analysis to identify co-flowering and floral-trait modules within serpentine seep communities in California. Observed modularity will be used to predict the roles of competitive and facilitative pollinator interactions as drivers of species assembly. The researchers propose that the distribution of flowering phenology and floral traits in a community are determined by: 1) the strength and direction of plant-plant interactions via pollinator visitation, and 2) the fitness cost of direct plant-plant interactions via interspecies pollen transfer. These predictions will be experimentally tested in the field by manipulating co-flowering community composition and in the greenhouse via hand pollination experiments with pure and mixed-pollen loads. The researchers make two predictions. First, species membership in different co-flowering modules is the result of competitive plant-plant interactions via pollinators. Second, species membership in the same co-flowering module can result from facilitative, competitive, or both types of interactions acting simultaneously. This research will help take our understanding of co-flowering community assembly from a descriptive to a more predictive stage.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

为了预测环境变化将如何影响植物群落的长期稳定性和物种组成，了解决定群落成员的生态过程至关重要。本研究将评估在多物种群落中同时运行的两个生态过程的综合重要性。首先，植物物种之间对传粉者的竞争可能导致劣势竞争者的丧失。第二，促进作用可能会导致两个物种接受更多的传粉者访问，并导致物种共现。通过测量传粉者的访问和对传粉者有吸引力的花朵性状，研究人员将量化竞争和促进的同时作用。这些数据将使研究人员更好地了解物种共存和群落组成的模式。这项研究还将推进阿巴拉契亚地区代表性不足的群体和第一代大学生的科学教育。此外，与自然中心的传粉者花园相关的推广活动将提高人们对传粉作为关键生态系统服务的认识。该项目将使用网络分析来确定加州蛇形渗漏群落内的共花和花卉特征模块。观察到的模块化将被用来预测的竞争和促进传粉者的相互作用的物种组装的驱动程序的角色。研究人员提出，群落中开花物候和花卉性状的分布取决于：1）通过传粉者访问的植物-植物相互作用的强度和方向，以及2）通过种间花粉转移的直接植物-植物相互作用的适合度成本。这些预测将在现场进行实验测试，通过操纵共花群落组成，并在温室中通过纯和混合花粉负荷的人工授粉实验。研究人员做出了两个预测。首先，在不同的共花模块中的物种成员资格是通过传粉者的竞争性植物-植物相互作用的结果。第二，在同一个共花模块中的物种成员资格可能是由促进性、竞争性或两种类型的相互作用同时作用引起的。这项研究将有助于我们从描述性到更预测性的阶段了解共花社区组装。这个奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

项目成果

Co-flowering modularity and floral trait similarity help explain temporal changes in plant–pollinator network structure

• DOI: 10.1007/s11258-022-01275-0
• 发表时间: 2022-11
• 期刊: Plant Ecology
• 影响因子: 1.7
• 作者: Alexander Suárez-Mariño;G. Arceo‐Gómez;Cristopher Albor;V. Parra‐Tabla

Pollen transfer networks reveal alien species as main heterospecific pollen donors with fitness consequences for natives

花粉转移网络揭示外来物种是主要的异种花粉供体，对当地人的健康产生影响

• DOI: 10.1111/1365-2745.13520
• 发表时间: 2020
• 期刊: Journal of Ecology
• 影响因子: 5.5
• 作者: Parra‐Tabla, Víctor;Alonso, Conchita;Ashman, Tia‐Lynn;Raguso, Robert A.;Albor, Cristopher;Sosenski, Paula;Carmona, Diego;Arceo‐Gómez, Gerardo;Heard, ed., Matthew
• 通讯作者: Heard, ed., Matthew

Spatial variation in the intensity of interactions via heterospecific pollen transfer may contribute to local and global patterns of plant diversity

• DOI: 10.1093/aob/mcab082
• 发表时间: 2021-07-06
• 期刊: ANNALS OF BOTANY
• 影响因子: 4.2
• 作者: Arceo-Gomez, Gerardo

Impacts of plant invasions in native plant–pollinator networks

植物入侵对本地植物传粉媒介网络的影响

• DOI: 10.1111/nph.17339
• 发表时间: 2021
• 期刊: New Phytologist
• 影响因子: 9.4
• 作者: Parra‐Tabla, Víctor;Arceo‐Gómez, Gerardo
• 通讯作者: Arceo‐Gómez, Gerardo

Flowering overlap and floral trait similarity help explain the structure of pollination networks

• DOI: 10.1111/1365-2745.13905
• 发表时间: 2022-05
• 期刊: Journal of Ecology
• 影响因子: 5.5
• 作者: Alexander Suárez-Mariño;G. Arceo‐Gómez;Cristopher Albor;V. Parra‐Tabla