نتایج جستجو برای: hoverflies
تعداد نتایج: 225 فیلتر نتایج به سال:
Landscape-scale agricultural intensification is a major driver of biodiversity loss. Highly mobile species, such as aerial invertebrates may be disproportionately affected by land cover at large spatial scales due to their ability disperse. Assessing the efficacy environmentally friendly farming, Agri-Environment Schemes (AES), therefore, requires establishing influence beyond focal farms or fi...
Abstract Habitat loss and fragmentation are considered the foremost threats in pollinator decline, England Wales, 97% of wildflower meadows were lost by 1984. The value creating flower-rich margins agricultural environments is established, yet there growing potential to support populations urban landscapes. We used citizen science investigate effectiveness small 4m 2 sown ‘mini-meadows’ UK gard...
Crop choice affects biodiversity within fields due to crop-specific characteristics and management practices. However, there is a lack of studies systematically comparing the value different crops across multiple taxa. This study empirically compared diversity plants, pollinators, predatory arthropods, multi-taxa between seven crop types long-term environmental fallows in boreal farmland. The e...
Many food crops depend on animal pollination to set fruit. In light of pollinator declines there is growing recognition the need for agro-ecosystems that can sustain wild populations, ensuring fruit production and conservation into future. One method supporting resident populations within agricultural landscapes encourage maintain floral diversity. However, visitation crop plants be affected ei...
Habitat restoration is a key measure to counteract negative impacts on biodiversity from habitat loss and fragmentation. To assess success in restoring not only biodiversity, but also functionality of communities, we should take into account the re-assembly of species trait composition across taxa. Attaining such functional restoration would depend on the landscape context, vegetation structure...
Farmland biodiversity is strongly declining in most of Western Europe, but still survives in traditional low intensity agricultural landscapes in Central and Eastern Europe. Accession to the EU however intensifies agriculture, which leads to the vanishing of traditional farming. Our aim was to describe the pollinator assemblages of the last remnants of these landscapes, thus set the baseline of...
Pollination is a key ecosystem service, and appropriate management, particularly in agricultural systems, is essential to maintain a diversity of pollinator guilds. However, management recommendations frequently focus on maintaining plant communities, with the assumption that associated invertebrate populations will be sustained. We tested whether plant community, flower resources, and soil moi...
Insect pollination benefits over three quarters of the world's major crops. There is growing concern that observed declines in pollinators may impact on production and revenues from animal pollinated crops. Knowing the distribution of pollinators is therefore crucial for estimating their availability to pollinate crops; however, in general, we have an incomplete knowledge of where these pollina...
The decline in pollinating insects is well documented globally, leading to potentially severe impacts on floristic biodiversity and human health due the loss of pollination ecosystem services (Klein et al., 2007; Lundgren 2016; Smith 2015). Pollinator declines have occurred a combination habitat loss, climate change, pests diseases use pesticides (Potts 2010). As availability floral resources l...
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