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Rivers Ecology Limited was founded in 2015, with the aim of providing high-quality ecological services. Our profits are donated to support Norfolk Rivers Trust for the important work it completes restoring freshwater habitats around Norfolk. Our team consist of a highly experienced team of ecologists and planners.

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Liam Hall

Team Leader

Liam leads the Rivers Ecology team and works on integrated constructed wetland design. He has previously worked on on a range of river restoration and natural flood management projects and has an MSc in hydrology. 

Lily Mackie

Senior Project Officer

Lily has an MSc in freshwater management with an expertise in geomorphology. She has previously worked within the Rivers Trust delivering a number of projects, including chalk stream restoration, pond creation, natural flood management and wetland design.

Dr. Jonathan Lewis-Phillips


Jonathan is an ecologist with a PhD in freshwater habitats, birds and insects. Jonathan has experience in delivering a variety of river restoration, pond restoration, wetland creation and rewilding projects.
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Jack Riggall


Jack is an ecologist with a degree in ecology and wildlife conservation and wide range of field ecology experience, especially with protected species and botany. He also has experience in teaching professional courses on otters and their relatives.

Libby Pool


Libby is an ecologist with expertise in habitat assessments, protected species surveys and Biodiversity Net Gain. With a background in ecological consultancy, she has previously worked on large-scale biodiversity auditing projects of local parks and nature reserves.
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Erin Holroyd

Project Officer

Erin has an MSc in Environmental Sciences, and an expertise in hydrology and water quality. She has prior experience as a hydrologist for the Canal & River Trust and is currently working on monitoring water quality across the Wensum catchment.
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William Unwin

Assistant Ecologist

Will works on a variety of our projects, conducting river condition assessments, habitat baseline surveys, water quality testing, and topographical surveys. He has a particular interest in fieldwork and habitat conservation, with an MSc in Wildlife Conservation.

Dr. Jonah Tosney

Technical Director

Jonah is a freshwater ecologist, with a background in conservation and research. He has previously worked with Wester Ross Fisheries Trust, University of Highlands and Islands, Yorkshire Water and the Yorkshire Dales National Park. Jonah leads and oversees many of our projects, from design through to implementation.

Mare-Anne Edwards

Head of Finance

Marie-Anne oversees our finances and administration.


Alice Eley

Wiltshire Wildlife Trust
"We appointed Rivers Ecology to undertake detailed designs and modelling for a river restoration and online wetland creation scheme on a SSSI/SAC designated chalk stream aimed to restore natural processes whilst also capturing phosphorus. The Rivers Ecology team had the unique experience of working on nutrient capturing chalk stream wetlands in the past and were able to use their expertise to design an effective scheme in line with the requirements of the designated status of the river. There was a lot of discussion on the project design with stakeholders and Lily and Jonathan’s expertise were invaluable to help inform and adapt the designs as the project developed. We are delighted with the final design and are looking to secure funding to deliver this pioneering, online, chalk stream, nutrient offsetting wetland"
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