Josh Moatt

     Josh Moatt

     Postdoctoral Research Associate

     Funded by: Leverhulme Trust


       My Website   :  Twitter  :  Researchgate  :  GoogleScholar

I am a Postdoctoral Research Associate, funded by the Leverhulme Trust. My research interests lie in life history trade-offs between lifespan and reproduction, particularly interventions which alter the resolution of this trade-off. My current research is exploring the evolutionary mechanisms underpinning dietary restriction (DR) responses. Further information about my research can be found on my website.

I carried out my PhD in the Walling Lab, using nutritional geometry to explore DR responses in a non-model vertebrate species. In line with my broader interests, the majority of this work explored how diet influenced the trade-off between lifespan and reproduction. However I also explored a wide range of other traits, including: senescence, condition (health), body composition, growth and activity. In addition to my experimental work, I carried out a meta-analysis exploring the universality of the reduction in reproduction under DR. This meta-analysis was carried out in collaboration with Dr Shinichi Nakagawa, University of New South Wales.

Prior to my PhD, I carried out an MSc (by Research) at The University of York with Dr Michael Thom (now University of Plymouth). This research focussed on the life-history trade-offs associated with plastic sperm competition responses in Drosophila melanogaster. Particularly I examined whether increased reproductive investment, due to a perceived high sperm competition environment, resulted in a reduction in longevity.


Regan JC, Froy H, Walling CA, Moatt JP & Nussey DH 2020 Dietary restriction and insulin-like signalling pathways as adaptive plasticity: a synthesis and re-evaluation. Functional Ecology. 34:107-128.

Hudson AL, Moatt JP & Vale PF 2019 Terminal investment strategies following infection are dependent on diet. Journal of Evolutionary Biology.

Moatt JP, Fyfe M, Heap E, Mitchell LJM, Moon F & Walling CA 2019 Reconciling nutritional geometry with classical dietary restriction: effects of nutrient intake, not calories, on survival and reproduction. Aging Cell. e12868.

Hudson AL, Moatt JP & Vale PF 2018 Dietary protein mediates terminal investment in egg quantity or quality following bacterial gut infection in Drosophila. bioRxiv 489625.

Wilbourn RV, Moatt JP, Froy H, Walling CA, Nussey DH & Boonekamp JJ 2018 The relationship between telomere length and mortality risk in non-model vertebrate systems: a meta-analysis. Philosophical Transactions of the Royal Society B. 373: 20160447

Moatt JP, Hambly C, Heap E, Kramer A, Moon F, Speakman JR & Walling CA 2017 Body macronutrient composition is predicted by lipid and not protein content of the diet. Ecology and Evolution 7: 10056-10065

Moatt JP, Nakagawa S, Laigisz M & Walling CA 2016 The effect of dietary restriction on reproduction: a meta-analytic perspective. BMC Evolutionary Biology. 16. 199

Moatt JP, Dytham C & Thom MDF 2014 Sperm production responds to perceived sperm competition risk in male Drosophila melanogaster. Physiology & Behaviour 131: 111-114

Moatt JP, Dytham C & Thom MDF 2013 Exposure to sperm competition risk improves survival of virgin males. Biology Letters 9: 20121188