نتایج جستجو برای: hoverflies
تعداد نتایج: 225 فیلتر نتایج به سال:
Plant invasions can lead to homogeneous communities with decreased functional diversity. However, invasive plants, various morphological and phenological traits, may drive pollinator in a less predictable, more complex way. They promote pollinators compatible their floral while leaving others without foraging resources. Our observational study on 10 herbaceous species applied trait-based approa...
An updated checklist of the genus Eumerus Meigen, 1822 is presented from Pakistan along with two new country records, i.e., vestitus Bezzi, 1912 and sogdianus Stackelberg, 1952. native to Central Southern Europe, but recorded east Asia, Afrotropical region, recently also India. Both species are collected northern areas – extreme edge western Himalayas, where a significant diversity hoverflies h...
Mass-flowering crops (MFCs) are increasingly cultivated and might influence pollinator communities in MFC fields and nearby semi-natural habitats (SNHs). Across six European regions and 2 years, we assessed how landscape-scale cover of MFCs affected pollinator densities in 408 MFC fields and adjacent SNHs. In MFC fields, densities of bumblebees, solitary bees, managed honeybees and hoverflies w...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید