PDF(Pubmed)
Abstract：
UNASSIGNED: Anthropogenic activities significantly impact natural ecosystems, leading to alterations in plant and pollinator diversity and abundance. These changes often result in shifts within interacting communities, potentially reshaping the structure of plant-pollinator interaction networks. Given the escalating human footprint on habitats, evaluating the response of these networks to anthropization is critical for devising effective conservation and management strategies.
UNASSIGNED: We conducted a comprehensive review of the plant-pollinator network literature to assess the impact of anthropization on network structure. We assessed network metrics such as nestedness measure based on overlap and decreasing fills (NODF), network specialization (H2\'), connectance (C), and modularity (Q) to understand structural changes. Employing a meta-analytical approach, we examined how anthropization activities, such as deforestation, urbanization, habitat fragmentation, agriculture, intentional fires and livestock farming, affect both plant and pollinator richness.
UNASSIGNED: We generated a dataset for various metrics of network structure and 36 effect sizes for the meta-analysis, from 38 articles published between 2010 and 2023. Studies assessing the impact of agriculture and fragmentation were well-represented, comprising 68.4% of all studies, with networks involving interacting insects being the most studied taxa. Agriculture and fragmentation reduce nestedness and increase specialization in plant-pollinator networks, while modularity and connectance are mostly not affected. Although our meta-analysis suggests that anthropization decreases richness for both plants and pollinators, there was substantial heterogeneity in this regard among the evaluated studies. The meta-regression analyses helped us determine that the habitat fragment size where the studies were conducted was the primary variable contributing to such heterogeneity.
UNASSIGNED: The analysis of human impacts on plant-pollinator networks showed varied effects worldwide. Responses differed among network metrics, signaling nuanced impacts on structure. Activities like agriculture and fragmentation significantly changed ecosystems, reducing species richness in both pollinators and plants, highlighting network vulnerability. Regional differences stressed the need for tailored conservation. Despite insights, more research is crucial for a complete understanding of these ecological relationships.
UNASSIGNED: We conducted a comprehensive review of the plant-pollinator network literature to assess the impact of anthropization on network structure. We assessed network metrics such as nestedness measure based on overlap and decreasing fills (NODF), network specialization (H2\'), connectance (C), and modularity (Q) to understand structural changes. Employing a meta-analytical approach, we examined how anthropization activities, such as deforestation, urbanization, habitat fragmentation, agriculture, intentional fires and livestock farming, affect both plant and pollinator richness.
UNASSIGNED: We generated a dataset for various metrics of network structure and 36 effect sizes for the meta-analysis, from 38 articles published between 2010 and 2023. Studies assessing the impact of agriculture and fragmentation were well-represented, comprising 68.4% of all studies, with networks involving interacting insects being the most studied taxa. Agriculture and fragmentation reduce nestedness and increase specialization in plant-pollinator networks, while modularity and connectance are mostly not affected. Although our meta-analysis suggests that anthropization decreases richness for both plants and pollinators, there was substantial heterogeneity in this regard among the evaluated studies. The meta-regression analyses helped us determine that the habitat fragment size where the studies were conducted was the primary variable contributing to such heterogeneity.
UNASSIGNED: The analysis of human impacts on plant-pollinator networks showed varied effects worldwide. Responses differed among network metrics, signaling nuanced impacts on structure. Activities like agriculture and fragmentation significantly changed ecosystems, reducing species richness in both pollinators and plants, highlighting network vulnerability. Regional differences stressed the need for tailored conservation. Despite insights, more research is crucial for a complete understanding of these ecological relationships.
摘要：
■人为活动显著影响自然生态系统，导致植物和传粉媒介多样性和丰度的改变。这些变化通常会导致互动社区内的变化，可能重塑植物-传粉者相互作用网络的结构。鉴于人类在栖息地上的足迹不断升级，评估这些网络对人类化的反应对于制定有效的保护和管理策略至关重要。
■我们对植物-传粉者网络文献进行了全面审查，以评估人物化对网络结构的影响。我们评估了网络度量，如基于重叠和减少填充(NODF)的嵌套性度量，网络专业化(H2')，连通性（C），和模块化(Q)来理解结构变化。采用元分析方法，我们研究了人类化活动，比如砍伐森林,城市化,栖息地碎片化，农业,故意火灾和畜牧业，影响植物和传粉媒介的丰富度。
■我们为网络结构的各种指标和36个效果大小生成了一个数据集，用于荟萃分析，从2010年到2023年发表的38篇文章。评估农业和碎片化影响的研究得到了很好的体现，占所有研究的68.4%，涉及昆虫相互作用的网络是研究最多的类群。农业和碎片化减少了植物传粉者网络的嵌套性并增加了专业化，而模块化和连通性大多不受影响。尽管我们的荟萃分析表明，人类化降低了植物和传粉者的丰富度，在评估的研究中,在这方面存在显著的异质性.荟萃回归分析帮助我们确定进行研究的栖息地碎片大小是导致这种异质性的主要变量。
■人类对植物传粉者网络的影响分析显示，全球范围内的影响各不相同。网络度量之间的响应不同，预示着对结构的细微影响。农业和碎片化等活动显著改变了生态系统，减少传粉媒介和植物的物种丰富度，突出网络脆弱性。区域差异强调需要有针对性的保护。尽管有见解，更多的研究对于全面了解这些生态关系至关重要。
■我们对植物-传粉者网络文献进行了全面审查，以评估人物化对网络结构的影响。我们评估了网络度量，如基于重叠和减少填充(NODF)的嵌套性度量，网络专业化(H2')，连通性（C），和模块化(Q)来理解结构变化。采用元分析方法，我们研究了人类化活动，比如砍伐森林,城市化,栖息地碎片化，农业,故意火灾和畜牧业，影响植物和传粉媒介的丰富度。
■我们为网络结构的各种指标和36个效果大小生成了一个数据集，用于荟萃分析，从2010年到2023年发表的38篇文章。评估农业和碎片化影响的研究得到了很好的体现，占所有研究的68.4%，涉及昆虫相互作用的网络是研究最多的类群。农业和碎片化减少了植物传粉者网络的嵌套性并增加了专业化，而模块化和连通性大多不受影响。尽管我们的荟萃分析表明，人类化降低了植物和传粉者的丰富度，在评估的研究中,在这方面存在显著的异质性.荟萃回归分析帮助我们确定进行研究的栖息地碎片大小是导致这种异质性的主要变量。
■人类对植物传粉者网络的影响分析显示，全球范围内的影响各不相同。网络度量之间的响应不同，预示着对结构的细微影响。农业和碎片化等活动显著改变了生态系统，减少传粉媒介和植物的物种丰富度，突出网络脆弱性。区域差异强调需要有针对性的保护。尽管有见解，更多的研究对于全面了解这些生态关系至关重要。
