Award-winning, non-profit and ethical wildlife conservation volunteering. Advancing citizen science and conservation since 1999 – for nature, not profit.
Sweden is as beautiful as ever, so is our expedition base and the surrounding forest. Note that it snowed today.
Snow in May
The bears have not fared too well over the past 12 months. The government has slashed the number of bears it wants alive in Sweden from 2800 to 1400. This has meant that over the past year lots of bears have been killed in the study site, many of them with collars. At the same time the SBBRP has been starved of funds. How all this impacts what we do on the expedition this year, Andrea will explain when you get here. Suffice it to say that your contribution will be as important as ever, if not more.
On the bright side, we’ll be getting everything ready for you over the next few days. The weather forecast says the weather should improve and get warmer by the time you arrive, but come prepared for fours seasons anyway.
So safe travels and I’ll leave you with some impressions from today…
It’s time for our 2025 edition of our Sweden bear expedition, working in collaboration with Björn & Vildmark (bear & wilderness). I am Matthias Hammer and I will be your expedition leader this year.
Expedition base
This is our fifth citizen science research expedition in Dalarna province, Sweden, gathering field data on brown bears (Ursus arctos), contributing to the conservation of this iconic Scandinavian mammal. The data collected is used by the trans-national Scandinavian Brown Bear Research Project (SBBRP). Expedition scientist Dr Andrea Friebe has worked in the SBBRP since 1998 and wrote her master thesis and dissertation about brown bear hibernation and ecology in Sweden.
Dr. Andrea Friebe
The main focus of the Biosphere Expeditions brown bear research expeditions is locating and surveying winter dens used by bears that have previously been fitted with tracking devices. Once the bears have left in spring, each winter den is then carefully measured by the citizen scientists and a wide range of data are collected relating to the type of den, the surrounding habitat and any evidence of cubs and/or bear scats at the den site. The data gathered by the expeditions are used by the SBBRP as part of their long-term research programme following the lives of specific bears from birth to death, to gain insights into bear diet, weight development, patterns of movement, colonisation of new areas, choice of den, social behaviour, mortality and reproduction. Inter-species interaction with moose and domestic livestock have also been investigated, as well as the sensitivity of bears to human disturbance and human-bear conflict. The purpose of this all this is to provide managers in Norway and Sweden with solid, fact-based knowledge to meet present and future challenges by managing the population of brown bears, which is both an important hunted species and a source of conflict, and whose management has been changing rapidly in recent years.
Investigating a den
So, here we are. I hope you have read the latest expedition reports, your preparations are going well and you are all excited. I will be a few days ahead of you and my next diary entry will be from Sweden with updates from the ground.
Biosphere Expeditions has continued its long-term partnership with Lilongwe Wildlife Trust, researching and monitoring wildlife populations in Vwaza Marsh Wildlife Reserve.
The Malawi expedition has a particular focus on surveying elephants and hippos, as well as camera trap surveys of other wild animals. Analysis of elephant dung was also carried out to assess whether elephants had been eating crops grown in fields outside the reserve. The 2024 expedition also continued the process started in the earlier expeditions of identifying individual matriarch and adult bull elephants. Building this database of individual elephants will help greatly in mapping the demographics, movements and health of the elephant herds in Vwaza.
The 2024 expedition counted 296 elephants over 34 sightings, 339 hippos over five complete lake-side transects and collected and analysed 24 elephant dung samples (yielding 1743 seeds). The expedition also identified or created 17 ID profiles of elephants, with at least one re-sighting. Seventeen camera traps throughout the expedition provided evidence of hyaena, civet, genet, two species of mongoose and honey badger, amongst other species.
Expedition Leader Roland Arnison, who also led the 2022 and 2023 expeditions in Vwaza, said that “this was another successful expedition, carrying out field research tasks that, practically, can only be carried out by a team of hard-working citizen scientists. I am confident that the results gathered from this expedition will make an important contribution to the conservation of endangered species and biodiversity in Vwaza”.
Head of Research at LWT, Dr Leandra Stracquadanio, who was the expedition scientist, said “the data that we collected during this expedition is invaluable for us to continue our monitoring of elephant and hippo populations, as well as the overall biodiversity within Vwaza. The team did an excellent job and produced high-quality data that will inform ongoing and future conservation planning.”
Citizen scientists feedback:
Roland and Lea and the team really made this entire experience incredible. Kathy H., USA
It’s a great experience and I really felt us being here was useful. Sanne W., Netherlands
Really enjoyed that each day had a different combination of activities. Really positive leadership by Roland and Lea. Pam G., UK
The expedition was well set up and organised and there was not a day that I felt like something was out of place. Glory M., Malawi
This is my fourth expedition to Vwaza Marsh with Biosphere Expeditions. Another wonderful experience, finished off with a very special visit from the elephants and their babies coming right past our campfire as we were having dinner on our last night. Janet B., UK
Biosphere Expeditions, working in collaboration with Björn & Vildmark (bear & wilderness), has completed its fourth citizen science research expedition in Dalarna province, Sweden, gathering field data on brown bears (Ursus arctos), contributing to the conservation of this iconic Scandinavian mammal.
The expedition involves citizen scientists staying at a base camp and, after receiving relevant training, collecting data under the direction of the expedition scientist, Dr Andrea Friebe.
The data collected is used by the trans-national Scandinavian Brown Bear Research Project (SBBRP). Dr Friebe has worked in the SBBRP since 1998 and wrote her master thesis and dissertation about brown bear hibernation and ecology in Sweden. In 2001 she founded the company Björn & Vildmark, as an interface between bear research and information for the public and for managers.
The main focus of the Biosphere Expeditions brown bear research expeditions is locating and surveying winter dens used by bears that have previously been fitted with tracking devices. Once the bears have left in spring, each winter den is then carefully measured by the citizen scientists and a wide range of data are collected relating to the type of den, the surrounding habitat and any evidence of cubs and/or bear scats at the den site.
The expedition team also visits sites where bears had recently spent a significant amount of time, indicating a ‘day-bed’, or a potential kill or scavenging site. These sites also provide a high chance of finding bear scats. Samples of these scats are collected and later analysed to reveal bear diet as well as helping to identify the presence of cubs accompanying female bears.
The data gathered by the expeditions is used by the SBBRP as part of their long-term research programme following the lives of specific bears from birth to death, to gain insights into bear diet, weight development, patterns of movement, colonisation of new areas, choice of den, social behaviour, mortality and reproduction. Inter-species interaction with moose and domestic livestock have also been investigated, as well as the sensitivity of bears to human disturbance and human-bear conflict.
The purpose of this all this is to provide managers in Norway and Sweden with solid, fact-based knowledge to meet present and future challenges by managing the population of brown bears, which is both an important hunted species and a source of conflict, and whose management has been changing rapidly in recent years.
The 2024 expedition ran from 26 May to 4 June 2024, involving two days of practical training followed by seven days of research in the field carried out by nine citizen scientists from Germany, Spain, Poland, the UK and US. The expedition succeeded in locating and visiting 60 sites, including surveying 27 winter dens and collecting 56 samples of bear scats, three of which were ‘first scats of the season’ (especially valuable samples that can reveal a bear’s diet before and during hibernation). Other evidence of bear presence and behaviour recorded by the expedition included bear ‘day beds’, claw scratches on trees, footprints and the remains of prey carcasses, notably moose. The team also used directional radio antennae to reveal the live location of some bears.
“The team did really well this year, working hard in unusually challenging conditions. They also had to deal with some tough hiking in rough wild terrain to find the dens. They all deserve a good rest following the expedition”, says expedition leader Roland Arniston with a wry smile.
Expedition scientist Dr Andrea Friebe was very pleased with the data collected. “I really appreciate the effort that the citizen scientists put into collect the data. I wouldn’t be able to obtain this long-term dataset on brown bears without them. Initial results show a changing pattern of the types of winter dens used by bears, including a trend of increasing use of basket dens by female bears, a type of den more usually favoured by large male bears.”
Andrea will carry out further analysis of the data collected on the expedition, to reveal more detailed results about bear dens, diet and demographics. An expedition report with all analyses and details will be published in due course
Biosphere Expeditions will to return to Sweden in 2025 to continue this valuable contribution to brown bear research and conservation in Scandinavia.
Citizen scientist testimonials:
“The setting of base was beautiful, basic and comfortable. Andrea was amazing to work with. Loved the presentations. The food was EXCELLENT.” Zoe G., UK.
“I enjoyed a really great experience, beautiful landscape, meeting very kind and interesting people. I am very happy that I got the chance to come here.” Almut D., Germany.
“The food that Lousie cooked was VERY good. Andrea’s enthusiasm and expertise are an inspiration. I thought she was amazing and will follow her research. I loved the technical work and strengthening my technical skills.” Kari V., USA.
“The local researcher is very excited about her work and her enthusiasm is contagious. The research felt worthwhile and finding bear dens was very satisfying. I enjoyed the full days.” Maya G., Poland.
“I appreciated the opportunity to work closely with the project scientist and gain more knowledge of bear ecology and how they interact with the human population” Thomas K., USA.
For the fifth edition of the Biosphere Expeditions wolf project in Germany, we moved to a new expedition base, the beautiful NaturCampus in Bockum, in northern Lower Saxony. In 2023 we welcomed a total of 19 expeditioners from seven different countries for two weeks. The final numbers of all groups bear evidence to a truly impressive effort: all teams covered 791 km in eight wolf territories, sampling a total of 218 wolf scats. This corresponds to 35 10 km x 10km grids. 156 samples were frozen for dietary analyses and 16 samples will be sent to the lab for DNA analysis. We also recorded one wolf sighting during group 1 and two wolf tracks of adults and pups. For the first time during an expedition, howls of wolf pups and adults could be heard in the distance; this awe-inspring event was of course duly recorded.
During the Covid pandemic, wolf monitoring went through a deep data dip, so the new and sizeable set of data collected by the 2020, 2022 and 2023 wolf expeditions are crucial for an up-to-date picture of current wolf presence in the study area and data have just been entered into the German wolf monitoring database by our expedition scientists.
Biosphere Expeditions’ contribution from 2017 to today now exceeds 1000 data entries, underlining the importance of citizen science for wolf monitoring and conservation.
What makes this expedition truly unique is the variety of wolf stakeholders we interacted with: inspiring wolf ambassadors, the committed Wolfsbüro team, the staff of our beautiful Bockum NaturCampus expedition base, Kenner’s Landlust setting, the showcase Wolfcenter Dörverden, and our amazing scientists. We also learnt about how humans and wolves can coexist in a densely populated and highly developed place like Germany. This apex predator has come back to stay and it is a credit to Germany that the country is making it work, the inevitable trials and tribulations aside. We are proud to say that our expedition plays a significant role in making this so, and we thank everyone for making this year a great success. We hope to see many of you again in the future.
Citizen scientists feedback:
It was a unique experience for me. I appreciated and enjoyed the opportunity to be part of the scientific team to research the wolf and play a role in wolf conservation. Walking in the forest, looking for scats and the possibility of seeing a wolf, made me feel close to nature and sense a connection to the wolf. I learned a lot. Thank you so much for it all! Carine C., Australia
This is my 10th Biosphere Expedition, and it was simply one of the best. Excellent lodging, good food, great team and very knowledgeable scientists with the right attitude. Anne S., Germany
Where to begin? It was the best of smells, no, it was the worst of smells. Never again will any of us look at the ground in the same way. Dog? Fox? Wolf? Hmmm – that smell. Wolf! Yes, score another. Jim B., USA
It had a very nice time and wonderful experience. The location was great. The expeditions was a present my husband gave me – a unique one. I am sure when back at home, I will scan the paths. I hope to come again. Silke K., Germany
The wolf expedition is always a lot of fun, and I know that my work during the expedition is valuable for the scientists and for wolf conservation more broadly. We celebrated my 20th anniversary of Biosphere Expeditions (2003 Ukraine – 2023 Germany), including five Germany wolf expeditons. Nice team, good experiences, lot of fun! Sylvia D., Germany
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