National records of 3000 European bee and hoverfly species: A contribution to pollinator conservation
Authors: Reverté Sara , Miličić Marija , Ačanski Jelena , Andrić Andrijana , Aracil Andrea , Aubert Matthieu , Balzan Mario Victor , Bartomeus Ignasi , Bogusch Petr , Bosch Jordi , Budrys Eduardas , Cantú‐Salazar Lisette , Castro Sílvia , Cornalba Maurizio , Demeter Imre , Devalez Jelle , Dorchin Achik , Dufrêne Eric , Đorđević Aleksandra , Fisler Lisa , Fitzpatrick Úna , Flaminio Simone , Földesi Rita , Gaspar Hugo , Genoud David , Geslin Benoît , Ghisbain Guillaume , Gilbert Francis , Gogala Andrej , Grković Ana , Heimburg Helge , Herrera‐Mesías Fernanda , Jacobs Maarten , Janković Milosavljević Marina , Janssen Kobe , Jensen Jens‐Kjeld , Ješovnik Ana , Józan Zsolt , Karlis Giorgos , Kasparek Max , Kovács‐Hostyánszki Anikó , Kuhlmann Michael , Le Divelec Romain , Leclercq Nicolas , Likov Laura , Litman Jessica , Ljubomirov Toshko , Madsen Henning Bang , Marshall Leon , Mazánek Libor , Milić Dubravka , Mignot Maud , Mudri‐Stojnić Sonja , Müller Andreas , Nedeljković Zorica , Nikolić Petar , Ødegaard Frode , Patiny Sebastien , Paukkunen Juho , Pennards Gerard , Pérez‐Bañón Celeste , Perrard Adrien , Petanidou Theodora , Pettersson Lars B. , Popov Grigory , Popov Snežana , Praz Christophe , Prokhorov Alex , Quaranta Marino , Radchenko Vladimir G. , Radenković Snežana , Rasmont Pierre , Rasmussen Claus , Reemer Menno , Ricarte Antonio , Risch Stephan , Roberts Stuart P. M. , Rojo Santos , Ropars Lise , Rosa Paolo , Ruiz Carlos , Sentil Ahlam , Shparyk Viktor , Smit Jan , Sommaggio Daniele , Soon Villu , Ssymank Axel , Ståhls Gunilla , Stavrinides Menelaos , Straka Jakub , Tarlap Peeter , Terzo Michael , Tomozii Bogdan , Tot Tamara , van der Ent Leendert‐Jan , van Steenis Jeroen , van Steenis Wouter , Varnava Androulla I. , Vereecken Nicolas J. , Veselić Sanja , Vesnić Adi , Weigand Alexander , Wisniowski Bogdan , Wood Thomas J. , Zimmermann Dominique , Michez Denis , Vujić Ante 
Published: September 2023

Abstract
Pollinators play a crucial role in ecosystems globally, ensuring the seed production of most flowering plants. They are threatened by global changes and knowledge of their distribution at the national and continental levels is needed to implement efficient conservation actions, but this knowledge is still fragmented and/or difficult to access.
As a step forward, we provide an updated list of around 3000 European bee and hoverfly species, reflecting their current distributional status at the national level (in the form of present, absent, regionally extinct, possibly extinct or non‐native). This work was attainable by incorporating both published and unpublished data, as well as knowledge from a large set of taxonomists and ecologists in both groups.
After providing the first National species lists for bees and hoverflies for many countries, we examine the current distributional patterns of these species and designate the countries with highest levels of species richness. We also show that many species are recorded in a single European country, highlighting the importance of articulating European and national conservation strategies.
Finally, we discuss how the data provided here can be combined with future trait and Red List data to implement research that will further advance pollinator conservation.