Speakers Lineup

Below is a partial list of the conference speakers and moderators. More will be added in the coming weeks as the program is finalized.


Jacek Adamczewski

Is by education a forester and ichthyologist, and professionally associated with education at the Natural History Museum of the Wigry National Park in Poland. He has been involved in tree-beekeeping restoration since 2007, having learned the craft directly from the Bashkir masters. For 20 years, he has owned a 30-hive apiary, and nowadays also looks after 12 tree hives and four tree log hives in the Augustów Forest in northeast Poland.


Sabine Bergmann

Is a teacher at the Rudolf Steiner school Schloss Hamborn, a certified Demeter beekeeper, a member of the Mellifera training association, and a Zeidler. She has organized several Zeidler courses, exhibitions, and projects at schools, old people's homes, forestry enterprises, and open-air museums. She participated in the international Zeidler conference in Spala in 2017, and has gone on several Zeidler research trips to Poland, Lithuania, Belarus, and Russia.

Sa Bienen Beekeeping (in German)
Schloss Hamborn (in German)


Tomasz Dzierżanowski

Is a biologist by profession and an employee of the Regional Directorate for Environmental Protection in Łódź, Poland. He has been involved in tree-beekeeping restoration since 2007, having learned the craft directly from the Bashkir masters. He is the owner of a small apiary comprised of 11 beehives, 13 tree hives, and three tree log hives in the Pilicka Forest of central Poland.

http://bartnictwo.m-sto.org/ (in Polish)


Arne Eckert

Studied Forest Science with a specialty in biodiversity. He is a certified tree inspector, trained tree climber, member of Tree Beekeeping International, and is part of a Zeidler regional group in Saxony. He has advanced knowledge in tree physiology and forest ecology, and spoke at the international Zeidler Conference in Spala, Poland, in 2017.

LandWaldBaum (in German)


Jacqueline Freeman

Is a writer and biodynamic farmer who sees the world from Nature’s perspective. She wrote the groundbreaking book Song of Increase: Listening to the Wisdom of Honeybees for Kinder Beekeeping and a Better World. She encourages us to have an expansive relationship with bees that recognizes the significance of their deeper role in nature as wise members of Nature's community. 

With Susan Knilans she co-founded Preservation Beekeeping, a charity that promotes respectful ways for humans to interact with bees. Additionally, Spirit Bee celebrates the caring and considerate ways humans and bees exist in harmony.

Preservation Beekeeping
Spirit Bee


Antonio Gurliaccio

“I have learned to see with the eyes of bees!”

“In 2012, I saw the premiere of the movie, More than Honey, in the cinema. I realized that something had to change, and thus I founded BIENENBOTSCHAFT/BEE EMBASSY. Since then, on behalf of Her Majesty, the Queen Bee, I have been on the road. My mission is to create the most natural habitat for a healthy future for the bee and biodiversity on our planet.”



Heidi Herrmann

Is a trustee of the Natural Beekeeping Trust, joint founder of Learning from the Bees, and advisory editor to Natural Bee Husbandry magazine.

Natural Beekeeping Trust

Photo © Inge Zimmermann

Photo © Inge Zimmermann

Markus Imhoof

Was born 1941 in Winterthur, Switzerland. Two of his first documentaries were prohibited but won multiple awards. In 1981 his film The Boat Is Full was honored at Berlinale and nominated for an Oscar. His film More Than Honey was the most successful Swiss documentary of all time, while his newest film, Eldorado, won several Human Rights prizes. Imhoof is a member of the Academy of Arts Berlin, the European Film Academy, and the AMPAS Los Angeles.

Markus Imhoof’s website
More Than Honey website (in German)



Started to get involved in the struggle against coal mining when she first stepped into the Hambach Forest Occupation. There, she learned a lot about climate justice, tree-house building, action-based strategy, and other things learned in self-organized groups. She campaigns, gives talks, and leads actions to find ways out of the climate crisis and into a society that puts people before profit. She co-founded Solidaritree, an activist collective that shares money and other goods to support full-time activism.

Hambach Forest
Solidaritree (in German)


Dr. Mirko Lunau

Started his professional career as a carpenter, continued as a student of biology, and finally achieved a Ph.D. in marine biology. After more than 10 years working on microbial ecology at national and international universities and marine research centers, he quit academic science. Since 2012 he has run a Demeter-certified apiary and small fruit farm in northeastern Germany. He enjoys giving classes on beekeeping and tree trimming.

Demeter cider factory and Apiculture Ahrensboek (in German)


Prof. Dr. Dr. h.c. Randolf Menzel

Is a neurobiologist, who has been working with honey bees as a model of high-order neural functions for 54 years. He studied the neural basis of color vision, olfaction, learning, memory formation, and navigation in honey bees, using neurophysiological, neuranatomical, and behavioral analyses. He published multiple research articles and a book (together with Mathias Eckoldt) on the intelligence of bees. He received the Leibniz Award of the German Resource council. He lives in Berlin, Germany.

Freie Universität Berlin, Institute Biology-Neurobiology


Albert Muller

Has been a biologist and beekeeper since 1975. He is co-founder and member of the Dutch working group Biodynamic Beekeepers and an expert on bee diseases in The Netherlands’ government commission. He is also a member of the research team dealing with Varroa tolerance at Wageningen University.

BD Imkers (in Dutch)


Dr. Przemysław Nawrocki

Is a biologist and specialist in river and wetland ecology, bird studies, and nature conservation. He got his Master’s degree at Poznań University in Domain of Environmental Biology and Ph.D. at Gdańsk University in Zoology. Since 1997, he has worked for WWF in Poland and is involved in various projects aimed at conservation of river and forest ecosystems, combining nature conservation with local economy, ecological education, and shaping Poland’s environmental policies. He is one of the initiators of the restoration of tree beekeeping in Poland and Western Europe. In his free time he carves birds and illustrates wildlife.

WWF Poland (in Polish)


Andrzej Pazura

Is a forester by education and an employee of the State Forests in the Spała Forest District of Poland. He has been involved in tree-beekeeping restoration since 2007, having learned the craft directly from the Bashkir masters. He is the owner of a small apiary comprised of 15 hives, nine tree hives, and six tree log hives in the Pilicka Forest of central Poland.


Johannes Pickhardt

Is a trained forester and tree climber, and has been an instructor of tree beekeeping since the first Zeidlerei course at Schloss Hamborn in 2015. He learned the Polish climbing rope technique (leziwo) in Augustow, Poland, and took part in the international Zeidler Conference in Poland.

Piotr Piłasiewicz

Has been an active tree beekeeper since 2013 and is also a professional mead maker, co-owning Augustow Meadery. He serves as president of Bractwo Bartne (Tree Beekeeping Brotherhood), an organization that connects Poland and Belarus Zeidlers and offers courses on the craft in both countries. Since 2016 he and others have been working to establish Zeidlerei as a Polish National Heritage in order to ultimately gain UNESCO World Heritage status. He runs more than 30 tree hives and log hives in the Augustow Forest in Poland.

Bractwo Bartne


Norbert Poeplau

Is employed by Mellifera e.V. as a Master Beekeeper. For 13 years he has headed its Demeter apiary, Fischermühle, in Rosenfeld, Germany. The apiary also employs a journeyman beekeeper plus two trainees. In numerous courses, lectures, and advisory talks on organic beekeeping, he has passed on his expertise and enthusiasm for the world of honey bees to interested beekeepers and experts.

Mellifera e.V. (in German)


Jonathan Powell

Is a trustee of the Natural Beekeeping Trust and joint founder of Learning from the Bees. He authored the Tree Beekeeping Field Guide and oversees forest rewilding projects in the UK and Spain. He seeks to respect the nature of the bee, learning how wild bees prefer to live, which then informs his apiculture and heart.

Natural Beekeeping Trust


Thomas Radetzki

Is a Master Beekeeper and founder of the Aurelia Foundation. For more than 40 years he has been fighting to improve the living conditions of pollinating insects. One of his signature topics is the reduction of pesticides, along with changing pesticide-approval guidelines. He was also the initiator of the successful Bundestag petition, “Pesticide control now!”

Biodiversity is the immune system of our planet, and this is what drives him — as well as his love for bees. “We have to ask ourselves the question: ‘In which world do we want to live?’”

Aurelia Foundation

Deborah Richmond_photo.jpg

Deborah Richmond

Is a facilitator, constellation coach, and co-founder of a land regeneration project in Portugal. She brings people back to Nature through body-led workshops that inspire and drive environmental action and system change.

The center for her work in Portugal, Quinta Das Abelhas, focuses on providing bee-centered habitats, so the honey bee can return to behaviors seen in the wild and once again thrive.

Rewilding Our Planet


Heinz Risse

Is a tree beekeeper, co-founder of Mellifera Berlin regional group, and founding board member of Tree Beekeeping International. He teaches beginners in organic, bee-centered, natural beekeeping; tree beekeeping; as well as traditional tree-climbing techniques. He is also co-producer of Learning from the Bees | Berlin 2019.

Mellifera Berlin (in German)


Torben Schiffer

Is a senior researcher in the field of wild honey bees and tree cavities at the HOBOS Project at University Würzburg, directed by Prof. Jürgen Tautz. He also founded Beenature-Project and Beekeeping Revolution, whereby honey bees are first provided as-natural-as-possible conditions before going through the process of natural selection. He specializes in the (climatic) differences of natural habitats in comparison to man-made hives and their effects on bee health and bees’ behavior and biology.

Beenature-Project (in German)


Prof. Thomas D. Seeley

Is the Horace White Professor in Biology at Cornell University. His research focuses on the behavior, social life, and ecology of honey bees, with a special interest in how these bees live in nature. He has been an avid beekeeper since he was 16, hence for nearly 50 years. He is the author of several books on bees, including Honeybee Democracy (2010), Following the Wild Bees (2016), and The Lives of Bees: The Untold Story of Honey Bees in the Wild (2019). He lives in Ithaca, New York.

Cornell University Department of Neurobiology and Behavior

Laura Williams_photo.jpg

Laura Williams

Is an ecologist and founder of the Awakened Forest Project in Central Portugal, focusing on ecosystem regeneration and Nature connection with bees at its center. She is a co-creator of the Awakened Life Project and also works with local and national organizations such as ARBOR, Wildlings, and Reflorestar Portugal on reforestation and regeneration issues. Developing bee-led beekeeping has given her the understanding that bees are sentient wisdom keepers that can guide best practices in both beekeeping and ecosystem regeneration.

Awakened Forest Project
Reflorestar Portugal (in Portuguese)


Dr. Johannes Wirz

Is a Goethean scientist, who holds a Ph.D. in molecular genetics. He is co-leader of the Research Institute at the Goetheanum, Dornach (CH); a member of the board of and Research Coordinator for Mellifera e.V. (DE); and a beekeeper for 20 years. Some of his ongoing projects include: Transmission of Varroa tolerance in Apis mellifera mellifera, warmth treatment against Varroa by selected infrared radiation, and holistic beekeeping.

Mellifera e.V. (in German)


Tobias Wolf

Is trained as a forest scientist, tree inspector, and tree climber. He was a founding member of Tree Beekeeping International and spoke at the international Zeidler Conference in Spala, Poland, in 2017. Since 2014, he has visited various Zeidlerei areas in Poland and Russia with Zeidlerei United. He has advanced knowledge about trees, climbing technique, and Zeidlerei history.

LandWaldBaum (in German)