Personal profile
Research interests
I am an expert in freshwater (FW) ecotoxicology and my primary drive and interest is to protect FW biota from threatening process. In particular, for biota inhabiting ephemeral FWs, which are often overlooked but are very abundant globally (3.2 x 109), supporting support exceptionally high biodiversity [e.g. 1]. My education comprises: B.Sc Environmental Biology (2000), MRes Aquatic Ecotoxicology (2003), Doctorate “The effects of Pollutants on Amphibians” (2008). PDRA employment comprises: Fellow/Scientific Project Manager (EU-FP7-project on pollutant mixtures ‘CONTAMED’, 2009-2013), Senior Fellow (“Reproductive Biomarkers in Amphibians”; 2013-2015).
I have conducted laboratory and field studies with amphibians for > 15 years and has worked as a consultant providing expert opinion on chemicals regulation for amphibians (European Commission, 2010-2011; Environment Agency 2021-2022). More recently (since 2018), I have also conducted laboratory exposures to multiple stressors using snail (gastropod) model species.
I have conducted laboratory and field investigations into the impacts of chemical mixtures and I have regularly been invited to speak on this topic at national and international conferences. I am passionate about conducting science using environmentally realistic exposure scenarios in order to better protect wildlife; and in particular amphibians. Due to this drive, her chemicals mixtures work has expanded to encompass co-exposures with other ubiquitous environmental stressors, such as heat waves and invasive species.
My contribution to the wider research community includes the review of funding bids (Carnegie Trust; internal DTP bids) and manuscripts (e.g. Ecotoxicology and Environmental Safety) and Editorial responsibilities (Archives of Environmental Toxicology, Frontiers in Amphibian and Reptile Science). I am member of the Society of Environmental Toxicology and Chemistry and on the Executive Board for the Marine Alliance for Science and Technology. I recently organised an event with the European Pond Conservation Network (> 250 members), focused on collaborations for wetland conservation. I am on the Management Committee for the Pesticide Risk Assessment for Amphibians and Reptiles EU funded COST action.
Research Group Contact Details
I lead the freshwater Ecotoxicology group at Heriot-Watt University. I regularly have student/staff posts advertised. Please contact me if you have interest in collaborating with my research group and/or you are seeking PhD opportunities in this area of research.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being
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SDG 6 Clean Water and Sanitation
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SDG 12 Responsible Consumption and Production
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SDG 13 Climate Action
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SDG 15 Life on Land
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Collaborations and top research areas from the last five years
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Factors Driving Localized Extinctions of the Rare and Threatened Natterjack Toad (Epidalea calamita) in Scotland (UK)
MacLeod, S., Alexander, M. E., Rosa, G. M. & Orton, F., 24 Mar 2026, In: Ichthyology and Herpetology. 114, 1, p. 80-89 10 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Long-term individual and population effects of multiple stressors, using a model freshwater mollusc (Lymnaea stagnalis)
Moore, E. M., Pimentel, I. M., Schäfer, R. B., Svendsen, C. & Orton, F., Dec 2025, In: Ecotoxicology and Environmental Safety. 308, 119505.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Downloads (Pure) -
A review of non-destructive biomonitoring techniques to assess the impacts of pollution on reproductive health in frogs and toads
Orton, F., Roberts-Rhodes, B., Whatley, C. & Tyler, C. R., 1 Sept 2023, In: Ecotoxicology and Environmental Safety. 262, 115163.Research output: Contribution to journal › Review article › peer-review
Open AccessFile13 Link opens in a new tab Citations (Scopus)71 Downloads (Pure) -
Non-destructive methods to assess health of wild tropical frogs (túngara frogs: Engystomops pustulosus) in Trinidad reveal negative impacts of agricultural land
Orton, F., Mangan, S., Newton, L. & Marianes, A., Jun 2022, In: Environmental Science and Pollution Research. 29, 26, p. 40262-40272 11 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile5 Link opens in a new tab Citations (Scopus)27 Downloads (Pure) -
Laboratory-Based Comparison for the Effects of Environmental Stressors Supports Field Evidence for the Relative Importance of Pollution on Life History and Behavior of the Pond Snail, Lymnaea stagnalis
Moore, E. M., Alexander, M. E., Sloman, K. A., Pereira, M. G., Thacker, S. A. & Orton, F., 6 Jul 2021, In: Environmental Science and Technology. 55, 13, p. 8806-8816 11 p.Research output: Contribution to journal › Article › peer-review
6 Link opens in a new tab Citations (Scopus)