ANTENNA – Making technology work for monitoring pollinators

By Moya Owens, Research Assistant with the ANTENNA Project at TCD

In recent years the decline in wild insect pollinators has increased dramatically, causing huge concern among the pollinator monitoring community. The 2023 EU Pollinators Initiative has set out a number of actions to be taken by the EU and the Member States to help reverse the decline in pollinators, with the first action defined as ‘establishing a comprehensive monitoring system. The current EU-wide Pollinator Monitoring Scheme (EU-PoMS) provides a methodology for transnational pollinator monitoring however many gaps still remain. Modern technologies (such as camera traps, sensors, robotics) can help to address these concerns, with the aim of overcoming key monitoring gaps by increasing taxonomic and geographic coverage, speed and accuracy.

The ANTENNA project (MAkiNg Technology work for moNitoring polliNAtors) is an EU wide project with an overarching goal of filling key monitoring gaps through advancing novel technologies which complement EU-wide pollinator monitoring schemes. The project will address the following objectives:

  1. Advance automated sample sorting and image recognition tools from individual prototypes to systems adoptable by practitioners, through a co-design approach;
  2. Expand pollinator monitoring to under-researched pollinator taxa, ecosystems, and pressures;
  3. Quantify the added value of a broad range of novel monitoring systems in comparison and combination with ‘traditional’ methods in terms of information gains related to economic costs;
  4. Provide a framework for integrative monitoring by combining multiple data streams and for developing routines for near real-time forecasting models as bases for early warning systems;
  5. Upscale from local demonstrations to the implementation of large-scale transnational pipelines and provide context-specific guidance for the choice and combination of monitoring methods and indicators for policy and end-users.

Field work

ANTENNA is organised into 5 work packages, including improving and testing new monitoring technologies, integrative modelling and large scale implementation. Here at Trinity, we are going to be testing novel technologies in the field alongside traditional methods of pollinator monitoring. This involves deploying two camera traps in the field: a DIOPSIS camera, developed by Faunabit and a MiniMon camera, developed by members of the ANTENNA team. These cameras use image recognition tools to record and identify insects. Alongside using this technology, we will conduct transects and pan trapping on a minimum of 5 sites in Co. Kildare, meaning a busy field season for us!

Next steps

Along with fieldwork, we are also involved in identifying the needs of stakeholders ie. members of the pollinator community (such as ecologists, entomologists, researchers). We have developed an online survey which aims to identify the limitations of current monitoring approaches, opportunities for improvement and desired outcomes (eg. Integration of technologies with EU monitoring schemes). This survey represents the first step of a co-design process, with the information gathered summariesed to inform other tasks in the project and to optimise large-scale implementation which is the ultimate aim of the project. Additionally we are going to produce a roadmap for enhanced European wide pollinator monitoring. The report will outline a pathway for implementing the novel technology at large EU scales, and will include information on the status of the new technologies, guidance of complementary use and a cost benefit analysis.

This work is supported by the Environmental Protection Agency (EPA) through the Biodiversa+ program. Irish ANTENNA work is led in Trinity College Dublin by Prof Jane Stout, in collaboration with Dr Jess Knapp (Lund University).

Bees in the Trees

by Kate Harrington, PhD student, FOREST project, Trinity College Dublin

The pollinator community of young woodland sites, planted in farmlands under the Native Woodland Scheme (DAFM, 2024), was explored in the summer of 2023. We used pan trap and transect surveys to record and capture bees and hoverflies , looking at both the edges and centres of the woodlands, and we also looked at pollinator activity and floral resources. 

Pollinators, as might be expected,  forage mainly on the edges of the woodlands. The Native Woodland Scheme prescribes the planting of flowering species around the edges which support our native pollinator species, and seem to be particularly important for solitary bees in the spring.  The grassy edges, released from agriculture pressure, and unmanaged hedgerows, also contribute to the floral resources available for pollinators.    

Bombus pratorum resting on a hazel leaf

With a range of sites of different ages, we were able to look at how the pollinator fauna changed across the development of a woodland from an open habitat to one with a closed-tree canopy. 

A young native woodland plantation

With a range of sites of different ages, we were able to look at how the pollinator fauna changed across the development of a woodland from an open habitat to one with a closed-tree canopy. 

Native woodland spring plant-pollinator network

It has been suggested that functional groups such as pollinators may be particularly useful as ecological indicators.  With the rush to plant native trees as a solution to the biodiversity and climate crises, monitoring the success of these restoration initiatives is crucial, and we may need to look beyond simple habitat metrics (Marshall, 2024).  Our findings suggest that if we were to use pollinators as a monitoring metric for woodland sites, that bees may be a better indicator than hoverflies, as the latter respond more to landscape-level changes, while bees may better reflect any site-level changes. 

DAFM. (2024). Afforestation Scheme 2023-2027 Document. April 2024. Department of Agriculture, Food and the Marine. https://www.gov.ie/en/publication/6e997-afforestation-scheme/

Marshall, C. A. M., Wade, K., Kendall, I. S., Porcher, H., Poffley, J., Bladon, A. J., Dicks, L. V., & Treweek, J. (2024). England’s statutory biodiversity metric enhances plant, but not bird nor butterfly, biodiversity. Journal of Applied Ecology, 1365-2664.14697. https://doi.org/10.1111/1365-2664.14697

Mola, J. M., Hemberger, J., Kochanski, J., Richardson, L. L., & Pearse, I. S. (2021). The Importance of Forests in Bumble Bee Biology and Conservation. BioScience, 71(12), 1234–1248. https://doi.org/10.1093/biosci/biab121