31 December 2025

The solution came through an innovative IoT solution from a partnership between Semtech and Lagan Networks. Together the companies deployed the largest wildlife conservation IoT network of its kind in Ireland, powered by Semtech's LoRa® wireless technology. The £4.5 million project not only achieved its conservation goals but demonstrated how low-power, long-range IoT solutions can solve complex environmental challenges at scale.

The conservation challenge

Rathlin Island hosts one of the most important breeding sites for seabirds in both the UK and Ireland. The island's wildlife, including the iconic puffin, faced a critical threat from invasive non-native brown rats and ferrets that prey on ground-nesting birds and their eggs.

The Rathlin Acting for Tomorrow (LIFE Raft) Project required continuous monitoring of traps deployed island-wide to eradicate these predators. But the logistics were daunting: Rathlin's terrain, limited infrastructure, and poor cellular connectivity made traditional monitoring approaches impractical.

"Without this LoRa wireless radio network, our staff would have to monitor our equipment manually, which would be a huge task on an island the size of Rathlin," explains Dr David Tosh, Eradication Delivery Manager at RSPB NI. The project needed a solution that could operate reliably in harsh outdoor conditions, consume minimal power for years of continuous operation, and transmit data across long distances without traditional cellular infrastructure.

A long-range, low-power solution

Lagan Networks turned to LoRaWAN®, a wireless protocol specifically designed for Internet of Things (IoT) applications requiring long-range connectivity and minimal power consumption. At the heart of the system were Semtech's LoRa chipsets, which enable sensors to connect to the cloud and communicate real-time data over distances that traditional wireless technologies cannot match.

The network architecture was elegantly efficient: approximately 500 custom wireless sensors were deployed across the island, each monitoring an individual trap and transmitting status updates to just six LoRa gateways installed on the island. The network coverage was further enhanced by additional gateways located on the mainland - over 15 miles away across open water.

This long-range capability is a defining feature of LoRa technology. While traditional wireless sensors might have a signal range of only a few hundred feet, LoRa-enabled devices can transmit data to gateways that are miles away while consuming minimal battery power. For a conservation project operating 24/7 in a remote location, these characteristics were essential.

"We are delighted to be working with RSPB NI, the Rathlin Development Community Association and others on this exciting and successful project," says Michael Little, Technical Director at Lagan Networks.

Technical innovation meets conservation goals

The LoRaWAN network transformed the project's operational efficiency. Instead of staff physically visiting each trap multiple times daily - a logistically complex and time-consuming task across Rathlin's rugged landscape - the wireless sensors provided real-time alerts and status updates. This allowed the LIFEraft team to deploy resources precisely where needed, responding quickly to trap activations while ensuring humane treatment of all animals.

The system's reliability proved crucial over the project's two-year operational period. From operations beginning in Autumn 2023 through completion in Fall 2025, the network maintained consistent performance despite exposure to Northern Ireland's challenging weather conditions — wind, rain, and salt spray from the Atlantic Ocean.

LoRa technology's recognition as an official global standard for Low Power Wide Area (LPWA) networks by the International Telecommunication Union (ITU-T) provided additional confidence in the solution's long-term viability and interoperability.

Measurable conservation success

The results speak to both the technical success of the IoT deployment, and the conservation impact it enabled. By Fall 2025, no invasive species had been detected on the island for six months - marking the successful completion of the eradication program. The project achieved its primary goal of protecting Rathlin's vulnerable bird populations, including 25 species that depend on the island for breeding.

The impact extends beyond conservation metrics. With 70% of visitors to Rathlin citing birds and wildlife as their main reason for visiting, the restoration of the island's natural heritage delivers economic benefits to the local community through ecotourism. The project demonstrates how technology investments in conservation can generate both environmental and socioeconomic returns.