In a significant advancement for wildlife monitoring, a recent DNA-based survey has confirmed the presence of 905 wolverines across Scandinavia, with 345 of these located in Norway. The estimated population in Norway remains stable at approximately 360 to 393 individuals, consistent with figures from the past four years. This year’s monitoring effort set a new record, collecting and analyzing 5,512 DNA samples, surpassing last year’s total by over a thousand. The collaborative research, conducted by Rovdata, highlights the importance of cross-border wildlife management, as the Scandinavian wolverine population is monitored jointly by Norway and Sweden.The population of wolverines in Norway is estimated to be between 360 and 393 individuals as of December 1, 2023, remaining stable compared to the previous year’s estimate of 378 to 410. This assessment is based on DNA samples collected from December 1,2023,to June 30,2024. Researchers emphasize that the model accounts for wolverines not detected in annual DNA collections, which explains why a significant increase in sample numbers did not correlate with a rise in population estimates. the combined wolverine population in Norway and Sweden is projected to be between 1,012 and 1,072 at the start of the 2023/2024 monitoring season.Rovdata is leading the charge in monitoring Norway’s wolverine population, ensuring accurate data on their numbers. This vital work is part of the National Monitoring Program for Large Carnivores, commissioned by the Norwegian Environment Agency. Researchers employ two main methods: counting the number of wolverine litters born each year and analyzing DNA from collected feces, hair, and urine samples. The results help estimate population size and track changes over time. The Norwegian Nature Inspectorate (SNO) plays a crucial role by checking known and new dens for litters from February through summer. DNA samples are analyzed at the Norwegian Institute for Nature Research (NINA) in Trondheim, contributing to the RovQuant project, which uses capture-recapture techniques to estimate population numbers.For more details, visit the NINA report on DNA-based monitoring of the Scandinavian wolverine population in 2024.
Q&A: Monitoring Wolverines in Scandinavia—A Discussion with Wildlife Expert Dr. Eva andersson
Editor of Time.news (E): Thank you for joining us today,Dr. Andersson.Recent research has revealed a stable wolverine population in Norway and an exciting total of 905 wolverines in Scandinavia. What does this meen for wildlife conservation in the region?
Dr. Eva Andersson (A): Thank you for having me. this finding is a positive indicator for the health of the wolverine population across Scandinavia. A stable population suggests that the ecosystems in norway and Sweden are functioning well. The consistent population figures we’ve seen over the past four years represent successful conservation efforts and the resilience of this species.
E: The monitoring efforts set a new record this year with 5,512 DNA samples collected. How significant is this increase in sampling for understanding wolverine populations?
A: The increase in DNA samples collected is crucial. It allows researchers to gather a more complete data set that enhances the accuracy of population estimates. While we didn’t see a corresponding increase in population estimates despite more samples, this reflects the complexity involved in wildlife monitoring. The data helps in understanding the number of animals that are not detected each year, providing insights into their behavior and survival.
E: Collaborative research between Norway and Sweden seems pivotal for the wolverine population assessment. Could you elaborate on the significance of cross-border wildlife management?
A: Absolutely. Wolverines know no borders; their territories extend beyond national lines. The joint monitoring efforts are essential for effective conservational strategies. By working together, Norway and Sweden can share data and methodologies, ensuring a comprehensive approach to wildlife management that takes into account the entire population rather than segmented groups.
E: The monitoring framework involves two main methods: counting litters and analyzing DNA from various samples. Which of these methods provides the most reliable data?
A: Both methods are complementary. Counting wolverine litters gives a direct indication of reproduction and success rates within the population, while DNA analysis provides broader data about individual animals and their genetic diversity. This genetic information is key for understanding the population structure and overall health, identifying potential genetic bottlenecks, and ensuring that conservation measures are effective.
E: With an estimated population of 360 to 393 individuals in Norway as of December 2023, what practical steps can be taken to continue supporting these populations?
A: it’s significant for stakeholders, including landowners, local communities, and policymakers, to engage in sustainable land-use practices. Encouraging habitat conservation, managing prey availability, and safeguarding critical corridors can mitigate human-wildlife conflicts. Education and awareness campaigns are also vital to foster understanding and thankfulness of wolverines and the crucial roles they play in their ecosystems.
E: what future developments do you anticipate in wildlife monitoring, notably for species like the wolverine?
A: I foresee a greater integration of technology in monitoring efforts, such as the use of camera traps and GPS collaring. These innovations can yield real-time data on movement patterns and behavior, enhancing our understanding of wolverines. Additionally, we may see increased participation from citizen scientists helping to gather data, which can bolster conservation efforts further.
E: Thank you, Dr. Andersson, for yoru insights.The ongoing monitoring initiatives in Scandinavia offer a vital framework for wildlife conservation and highlight the importance of collaboration in achieving sustainability.
A: Thank you for having me. It’s crucial that we continue to support these efforts for future generations to enjoy and learn from our natural heritage.