3rd International Radar Aeroecology Conference

June 25-26, 2022 in Davos, Switzerland.

We cordially invite you to the 3rd International Radar Aeroecology Conference (IRAC 2022) in Davos, Switzerland. The conference takes place on 25-26 June 2022, directly before the World Biodiversity Forum. We look forward to welcoming many of you in person in Davos, but we will also offer online participation and make special arrangements for online participants presenting from different time zones. The conference will be a full 2-day event with plenary presentations, a poster session, and possibilities for informal discussions and networking.



Register now

Thematic sessions

We invite proposals for oral and poster contributions, fitting one or more of the conference themes and presented as part of thematic sessions:

  1. Spatio-temporal movement patterns of birds, bats, and insects and their environmental influences
  2. Methodological advancements - classification and identification algorithms, radar technology, data infrastructure
  3. From radar aeroecology to biodiversity
  4. Applied radar aeroecology - the knowledge base for conservation and management

Keynote speakers

We have invited renowned speakers who will give an introductory overview for each session:

picture Silke Bauer - Silke is a senior researcher at the Swiss Ornithological institute, and her core research interests are large scale migration patterns and the multitude of ecological effects migrants can have on resident communities visited during their journeys.

picture Jeff Buler - Jeff is professor at the Department of Entomology and Wildlife Ecology at the University of Delaware, where he established the Aeroecology Program in 2011. He is an international leader in the development of novel methods for using weather surveillance radars to study the broad-scale distribution, movement, and habitat use patterns of flying animals, particularly migratory birds.

picture Boya Gao - Boya is a post-doctor at plant protection college, Nanjing Agricultural University who researches insect migration and radar entomology.

picture Felix Liechti - Felix (from the Swiss Ornithological Institute) is a passionate bird migration researcher for which he employs remote-sensing technology and miniaturized data-loggers.

picture Judy Shamoun-Baranes - Judy is an associate professor at the Institute for Biodiversity and Ecosystem Dynamics at the University of Amsterdam and fascinated by animal movements and their biodiversity implications.

picture Dan Sheldon - Dan is an associate professor of computer science at UMass Amherst who likes to develop new machine learning and statistical methods to learn about birds from weather radar.


An optional pre-conference bird watching excursion to the Flüela Pass (with chance to see snowfinches) is organized by Fränzi Korner-Nievergelt. Email irac2022@vogelwarte.ch if you want to join.

Day 1: Saturday, June 25

time talk
8:00-9:00 Registration
9:15-9:30 Welcome
Session 1 Spatio-temporal movement patterns of birds, bats, and insects and their environmental influences
9:30-10:00 Felix Liechti - Recent achievements and future challenges in radar ornithology keynote
10:00-10:15 Nir Sapir - Two radars in the desert - Scrutinizing bird migration dynamics over different timescales using retrospective comparison and operational prediction
10:15-10:30 Birgen Haest - Spatiotemporal movements of insects across Europe, quantified using a vertical-looking radar network
10:30-11:00 Coffee break
11:00-11:15 Yuval Werber - Finding bats in RADAR data: a novel approach based on Ecology, movement and machine learning
11:15-11:30 Fiona Lippert - Integrating deep learning with mechanistic modeling for spatio-temporal migration forecasts based on weather radar networks
11:30-11:45 Jarmo Koistinen - Bin-based polarimetric echo classification for spatially flexible aeroecological purposes in combination with citizen science
11:45-12:00 Bart Kranstauber - Incorporating seasonal differences in phenology is essential for accurate bird migration forecasts
12:00-13:30 Lunch break
13:30-14:00 Dan Sheldon - Methodological advancements keynote remote
14:00-14:15 Valery Melnikov - Impacts of the differential phase upon transmission on radar variables from birds
14:15-14:30 Inbal Schekler - Automatic detection of bird flocks by weather radars
14:30-14:45 Gustavo Perez - Using spatio-temporal information in weather radar data to detect communal bird roosts
14:45-15:15 Coffee break
15:15-15:30 Yuting Deng - Quantifying phenological trends in aerial insectivore roosting behaviors in the Great Lakes region using weather surveillance radar
15:30-15:45 Fengyi Guo - Autumn stopover hotspots and multi-scale habitat associations of migratory landbirds in the eastern U.S.
15:45-16:00 Benjamin Van Doren - Linking acoustic monitoring and radar to capture the timing and intensity of bird migration remote
16:00-16:30 Coffee break
16:30-17:15 Jennifer Krauel - Patterns in high-altitude bat movement over Texas revealed by radar speed talk remote
  Virginia Halterman - Patterns of flight altitudes for arriving spring migrants in the Gulf of Mexico region speed talk remote
  Simon Hirschhofer - High concentrations of migratory birds in Swiss-alpine valleys more frequent in pre- than postbreeding migration speed talk
  Thibault Désert - SEMAFOR project: remote sensing of avifauna using the French meteorological radar network speed talk
  Jens van Erp - Identifying fine-scale flight behaviour in 2D bird radar tracks: marine thermal soaring on the North Sea speed talk
  Abel Gyimesi - Avian avoidance of offshore wind turbines measured by radar speed talk
17:15-20:00  Drinks & poster session

Day 2: Sunday, June 26

time talk
Session 2 Methodological advancements - classification and identification algorithms, radar technology, data infrastructure
9:00-9:30 Jeff Buler - Advances in radar aeroecology applications for wildlife conservation and food security keynote
9:30-9:45 Bart Hoekstra - Fireworks disturbance across bird communities
09:45-10:00 William Kunin - Tracking desert locust swarms using dual-polarisation weather radar
10:00-10:15 Zhenhua Hao - Different migratory strategies in locusts and moths revealed by radar remote
10:15-10:30 Xu Shi - Prospects for monitoring bird migration along the East Asian-Australasian Flyway using weather radar speed talk remote
  Lili Jia - Using radar to mitigate birdstrike risk in coastal airport on Bohai Bay speed talk remote
10:30-11:00 Coffee break
Session 3 From radar aeroecology to biodiversity
11:00-11:15 Andrew Farnsworth - From data to action: BirdCast perspectives on transforming bird migration science to conservation planning
11:15-11:30 Hans van Gasteren - Validation of local bird radars used in military aviation
11:30-11:45 Arndt Wellbrock - Flying across the sea – possibilities and limitations of weather radar data for the understanding of bird migration over the Baltic Sea remote
11:45-12:00 Maja Bradarić - On the radar: offshore wind turbine curtailment informed by nocturnal bird migration predictions
12:00-13:30 Lunch break
Session 4 Applied radar aeroecology - the knowledge base for conservation and management
13:30-14:00 Boya Gao - Migration basics for insects keynote remote
14:00-14:15 Theodore Zenzal - A bioenergetic model to facilitate migratory landbird conservation along the northern Gulf of Mexico coast remote
14:15-14:30 Elske Tielens - Spatial patterns in diurnal aerial insect biomass and landscape level drivers across the continental United States
14:30-14:45 Adriaan Dokter - Macro-demography of North America’s migratory birds
14:45-15:15 Coffee break
15:15-15:30 Raphaël Nussbaumer - Aerial and terrestrial biomass flows of migratory birds across the US
15:30:15:45 Christopher Hassall - Weather surveillance radar for biodiversity monitoring in the UK
15:45-16:00 Jason Chapman - Long-term trends of insect migration patterns above the USA
16:00-16:30 Silke Bauer & Judy Shamoun-Baranes - Concluding talk keynote
17:00+ Drinks & poster session


# poster
1 Tsafra Evra - Aloft and on the ground: do bird radar data and constant effort bird ringing data of migrants in Eilat, Israel, correlate?
2 Itai Bloch - Combining radio-telemetry and radar measurements to reveal how insect abundance affects the movements of an aerial insectivore
3 Paolo Becciu - Between sea and desert: soaring migrants beneficially modulate their flight in relation to sea-breeze
4 Joseph Wayman - Assessing the impact of fireworks on urban birds using L-Band staring radar
5 Nadja Weisshaupt - The impact of hydrometeors on bird migration as observed by various remote sensing systems
6 Nadja Weisshaupt - Dealiasing of radial velocities based on interleaved dual-PRF measurements and bin-based polarimetric echo classification
7 Tom Carrard - Bird migration forecast: developing radar-based forecasts of bird migration over Switzerland
8 Yuval Werber - RADAR in a multisensory setup: a case study to assess the impact of an aerial deterrent
9 Jacco Leemans - Distinguishing birds from waves based on radar track characteristics
10 Birgen Haest - Climatic drivers of Bracken Cave (USA) bat migration phenology and demography
11 Jonne Kleyheeg-Hartman - Developing automatic radar-controlled wind turbine shutdown to reduce collision mortality of local breeding birds.
12 Peter Desmet - CROW: Visualize bird migration in your browser
13 Fanqi Gao - Migratory behavior of the fall armyworm in Israel and its outbreak potential in Europe


Abstracts of talks and posters.

Venue, travel and accommodation


Davos is a picturesque town in eastern Switzerland, the highest town in Europe at 1560m asl, and can easily be reached from Switzerland’s major cities and airports, by rail or road.

Davos offers unique and varied facilities for sport and leisure, both in summer and winter, renowned museums and galleries, and exceptional restaurants and shopping opportunities. Ninety hotels and more than a thousand holiday flats offer accommodation for everybody’s taste, requirements and budget.

See the World Biodiversity Forum page for more information on Davos, how to get there, accommodation, the environment and things to do in and around town.

In Switzerland, all measures and restrictions with regard to COVID-19 have been lifted and thus, there are no specific preparations needed for entry and travel within Switzerland. Still, we advise to remain cautious and use the standard hygienic measures such as keeping distance, regularly washing or sanitizing hands, or wearing a face mask (Federal Office of Public Health advice).


Please contact us at irac2022@vogelwarte.ch with any questions that you may have regarding the conference, incl. your abstract submission, (informal) events you might want to organize (e.g. round-table discussions), etc.

Scientific committee: Silke Bauer, Adriaan Dokter, Andrew Farnsworth, Birgen Haest, Bart Kranstauber and Judy Shamoun-Baranes.

Organizing committee: GloBAM - Silke Bauer, Peter Desmet, Judy Shamoun-Baranes, Andrew Farnsworth and Jarmo Koistinen.