Agricultural intensification, by changing land use and modifying the yearly configuration and composition through crop sequences, affects the abundance and diversity of pollinators and, consequently, pollination. This study aims to assess the impact of the characteristics of agricultural landscapes on pollinator abundance in the Mediterranean region. We studied the response of three major wild pollinator groups (hoverflies, bumblebees, and wild bees) to four landscape characteristics: three related to composition, namely, equivalent crop diversity in the sampling year (eRg), previous year equivalent crop diversity (eRgP) and percentage of seminatural habitats (SNH), and one related to landscape configuration, namely, mean field size (MFS). For this evaluation, we selected twenty-two oilseed rape fields (OSRs) differing in surrounding landscape characteristics within a 1-km radius. Multimodel inference indicates that landscape variables affect pollinator groups differently. The percentage of SNH was the most important variable having a positive influence on the abundance of bumblebees, while eRgP and MFS were found to be important for the abundance of wild bees and hoverflies. These data allow us to prioritize actions aimed at specific groups of pollinators, improve agricultural landscape schemes, promote the conservation of wild pollinators, promote crop diversity at the landscape scale and increase the extent of seminatural areas.

农业集约化通过改变土地利用并通过作物序列改变年度配置和组成，影响授粉媒介的丰度和多样性，从而影响授粉。本研究旨在评估地中海地区农业景观特征对传粉媒介丰度的影响。我们研究了三大野生传粉媒介群体（食蚜蝇、熊蜂和野蜂）对四种景观特征的反应：其中三种与组成有关，即采样年的等效作物多样性（eRg）、上一年的等效作物多样性（eRgP）半自然栖息地的百分比（SNH），以及与景观配置相关的一项，即平均田地大小（MFS）。在本次评估中，我们选择了半径 1 公里内周围景观特征不同的 22 个油菜田 (OSR)。多模型推断表明景观变量对传粉媒介群体的影响不同。SNH 的百分比是对熊蜂丰度有积极影响的最重要变量，而 eRgP 和 MFS 对野生蜜蜂和食蚜蝇的丰度很重要。这些数据使我们能够优先考虑针对特定授粉媒介群体的行动，改善农业景观计划，促进野生授粉媒介的保护，促进景观规模的作物多样性，并扩大半自然区域的范围。