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Keeping Up with Insect Pollinators in Paris.

Vincent Zaninotto^1,2, Isabelle Dajoz¹

¹Institute of Ecology and Environmental Sciences-Paris (iEES-Paris), Sorbonne Université, CNRS, IRD, INRAE, Université Paris Cité, UPEC, 4 Place Jussieu, 75005 Paris, France.

Animals : an Open Access Journal From MDPI

|April 12, 2022

Summary

This summary is machine-generated.

Paris, a dense urban environment, supports diverse wild bee and hoverfly communities. Conservation strategies should include urban green spaces to protect these vital pollinator populations.

Keywords:

greenspace management practices hoverflies pollinator functional diversity urban biodiversity urban ecology urban pollinators wild bees

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Area of Science:

Urban Ecology
Conservation Biology
Entomology

Background:

Urbanization poses risks to pollinator populations through habitat loss and biotic homogenization.
Despite dense urban landscapes, insect pollinators have been documented in cities like Paris.
Understanding urban pollinator diversity is crucial for effective conservation.

Purpose of the Study:

To assess the taxonomic and functional diversity of wild bees and hoverflies in Parisian green spaces.
To update existing knowledge on pollinator species richness in a highly urbanized area.
To identify factors influencing pollinator diversity in urban environments.

Main Methods:

Conducted two-year in-depth surveys across various Parisian green spaces.
Monitored pollinator activity throughout their seasonal cycles.
Identified and cataloged wild bee and hoverfly species, noting their functional traits and conservation status.

Main Results:

Documented 118 wild bee species and 37 hoverfly species, adding 32 new species to existing records.
Observed significant functional diversity in bee assemblages, including parasitic and oligolectic species.
Found that green spaces with diverse habitats and ecological management exhibited the highest taxonomic and functional diversity.
Identified several bee and hoverfly species with special conservation status.

Conclusions:

Paris harbors a surprisingly rich diversity of wild bees and hoverflies, with nearly half of the regional species found within the city.
Ecologically managed green spaces with multiple habitats are key to supporting urban pollinator diversity.
Dense urban areas represent important habitats for pollinators, necessitating their inclusion in conservation strategies.