Key pollinator groups show contrasting trait-mediated responses to urbanisation and agricultural intensification

Beskrivning

While both urbanisation and agricultural intensification are recognised as drivers of pollinator declines, urban green areas are potential safe havens for pollinators. We investigated if the processes of urbanisation (green space loss, increased human density) and agricultural intensification (semi-natural habitat loss, incresed field size, crop yield) have similar effects on different pollinator taxa. We sampled bees and hoverflies in urban and rural sites and assessed trait-environment associations using RLQ and 4th corner methods. For urban bee communities, vegetation cover and human density interacted with several traits, but local habitat was the most important driver. In rural environments only nesting habitat was affected. In contrast, for urban hoverflies only phenology was affected by, while rural communities clearly differed across environmental gradients and local habitat. We conclude that largely different traits-groups suffer from urban and agricultural intensification.

Period	2024 mars 14
Evenemangstitel	Nordic Oikos 2024: New perspectives in ecological and evolutionary research
Typ av evenemang	Konferens
Plats	Lund, SverigeVisa på karta