eNews
#06 2025
From plots to patterns: Reflecting on long-term vegetation monitoring
By Tsumbedzo Ramalevha and Dr Helga Knoetze, EFTEON
Robust, standardised vegetation monitoring practices are the bedrock of effective long-term biodiversity monitoring.
Given that plant communities form the structural and functional basis for most terrestrial ecosystems, an improved understanding of plant community dynamics in different ecosystems and biomes, in response to various ecosystem drivers, is needed for enhanced conservation of biodiversity. To understand temporal and spatial changes in vegetation, long-term data is essential. Working in silos or using non-standardised monitoring techniques significantly hinders effective long-term vegetation monitoring by leading to fragmented data, inconsistent sampling techniques, duplicated efforts and incomplete visibility of ecosystem-wide trends. Using standardised methods, however, ensures reliability and repeatability, allows for comparisons across studies and study sites, reduces bias, improves data quality, supports long-term monitoring, enhances collaboration, and finally, facilitates policy and management decisions.
Tsumbedzo Ramalevha (Lowveld Landscape biodiversity technician) and Helga Knoetze (KIMTRI Landscape scientist) were invited to attend a workshop on long-term vegetation monitoring techniques and savanna restoration held from November 3 to 6. The event was hosted by the Organisation for Tropical Studies (OTS – South Africa) and held at the Skukuza Science Leadership Initiative (SSLI) Campus in the Kruger National Park, South Africa. Here, experts from universities, research institutions and conservation organisations gathered in the heart of the savanna for an intensive workshop focused on refining and standardising long-term vegetation monitoring and savanna restoration practices.
Colleagues from SAEON’s Ndlovu Node, SANParks, Kruger2Canyon, Conservation South Africa, North-West University, Wits University and independent consulting companies came together to share knowledge on vegetation monitoring techniques and test new approaches to savanna restoration, all in an effort to explore how they can work together and share data more effectively. The picturesque Kruger National Park provided the perfect setting and opportunity for discussing the complex, dynamic ecosystems we strive to understand and protect.
The workshop officially kicked off on 4 November with a session dedicated to the “State of Knowledge” in long-term vegetation monitoring. This was a critical opportunity for participants to share their diverse methodologies and the underlying purposes of their work.
The discussions, spanning theoretical frameworks to practical field demonstrations, highlighted a major challenge – while many institutions conduct high-quality vegetation surveys, the methodologies, metrics and data formats often vary widely. This variability, while reflecting diverse research questions, creates significant hurdles for comparative ecology, modelling and large-scale trend analysis, the very essence of long-term monitoring.
Key takeaway: The collective effort to understand climate change impacts, ecosystem health and restoration success is severely hampered if we cannot effectively share and integrate our datasets.
During a field trip on the first day of the workshop, various field sampling techniques were discussed.
Site visit to Justica, a local village near the Kruger National Park.
The wrap-up discussion on this day centred on the critical question: Is there common ground to maximising data sharing without compromising individual research questions or data quality? The consensus pointed toward developing a workflow handbook, encapsulating a “core set” of standardised vegetation survey techniques and metrics that must be collected at every long-term site, regardless of the study’s specific focus.
On the second day of the workshop, various restoration and biodiversity sampling techniques were discussed among the group. Attendees shared where their long-term sampling plots are located and what is being sampled there. Other important points of discussion included data sharing and storage, and applications that can be used in the field to make sampling easier and more time efficient.
The importance of belowground microbial communities in biodiversity studies was discussed, and attendees were reminded how important it is for their research to contribute to a better society, which is in line with SAEON’s vision and mission. It was further reiterated how important it is to include local communities, and the wealth of indigenous knowledge kept within them. To this end, attendees had an opportunity to visit one of the villages close to the Kruger National Park, Justica, where they were shown how a piece of land next to the village is being managed sustainably for livestock to graze there. It was interesting to note that there are long-term sampling plots in this area, and that findings so far have indicated higher levels of bird and vegetation diversity compared to what is considered pristine protected areas.
As a research infrastructure, EFTEON’s mission is to add to public value through the provisioning of long-term, multidisciplinary observation platforms that are designed to clarify earth systems dynamics, change over multiple scales, and to distinguish between natural and anthropogenic environmental change. Since EFTEON’s goals include the development of open-access data systems and tools, provisioning of reliable long-term observational data, data supply and data sharing, we are excited to be part of high-quality workshops such as this one. Workshops provide us with a platform to learn, share, collaborate, engage and develop capacity to enhance biodiversity observations across the EFTEON Landscapes.
Acknowledgements
We would like to thank the Nsasani Trust and Organisation for Tropical Studies for hosting us, and all the colleagues who are passionate about the long-term monitoring and high-quality data collection of vegetation and all other aspects of biodiversity.
It is a privilege to help build a strong foundation for biodiversity conservation in South Africa.
