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\title{Science AMA Series: I'm Helen Roy, a Professor in Ecology at the NERC
Centre for Ecology and Hydrology. I do research on invasive non-native
species and their effects on biodiversity. AMA!}



\author[1]{Helen_Roy }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 23, 2026}


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\begin{abstract}
Hi Reddit! As we travel around the world and our economies become more
globalised, plant and animal species are declining and in some cases
disappearing due to the arrival of invasive non-native species. Invasive
Non-native species are a huge cost to the global economy and pose a
serious threat to the environment. My research focuses on the effects of
environmental change on insect populations and communities, especially
invasive non-native species and their effect on biodiversity. I also
lead the UK Ladybird Survey, a citizen science initiative that links
into my research focusing on the invasive harlequin ladybird. I'm part
of the Sense about Science Plant Science Panel, an online group of over
50 independent plant science researchers. You can ask them any questions
to do with plants, food or the environment on Twitter (@senseaboutsci
\#plantsci) Facebook or via the website. Answers are sent back within a
couple of days and posted online. The Panel has answered close to 400
questions over the last three years and it's a great way to cut through
the noise around what can often be very polarised debates. I'll be back
at noon EST to answer your questions, AMA!%
\end{abstract}%



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