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Faculty of Health and Life Sciences

Dr Nick Royle

Dr Nick Royle

Associate Professor in Behavioural & Evolutionary Ecology

 N.J.Royle@exeter.ac.uk

 Stella Turk Building B046-L12

 

University of Exeter, Penryn Campus, Penryn, TR10 9FE


Overview

I am a behavioural and evolutionary ecologist and conservation biologist with wide-ranging interests centred on how organisms, particularly beetles, respond and adapt to changes in the environments they experience.

I am particularly interested in parental care, sexual selection, mating systems, reproductive conflicts of interest, behavioural plasticity, social behaviour and evolution, life-history evolution and conservation. My work involves both invertebrate and vertebrate systems in the field and in the lab. Most of my current research involves using beetles, including Nicrophorus vespilloides burying beetles, Carabus intricatus, the blue ground beetle, and various species of dung beetle. But I have extensive experience working on vertebrates, especially birds, too.     

I am also the Director of Postgraduate Research for the 100+ PGR students in the Centre for Ecology & Conservation.

Google Scholar  Researchgate Orcid The Evolution of Parental Care book Twitter  

Qualifications

1998 PhD Zoology (University of Durham)
1993 BSc Ecology (University of Edinburgh)

Career

2022-present Associate Professor, University of Exeter

2012-2022 Senior Lecturer, University of Exeter

2008-2012 Lecturer, University of Exeter

2007-2008 NERC postdoctoral fellowship, University of Exeter

2005-2006 NERC postdoctoral fellowship, University of Glasgow

2002-2005 PDRA, University of Glasgow

1998-2001 PDRA, Lancaster University

Research group links

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Research

Research interests

My behavioural/evolutionary research centres on addressing how organisms adapt to changes in their environment (social and/or non-social), with a particular focus on (plasticity) in parental care and sexual selection, within-family conflicts over parental investment and the co-evolutionary relationship between mating behaviours and parental care. In addition I work more broadly on the ecology, conservation and management of various organisms, primarily beetles. In addition to other ecologists I collaborate with microbiologists, ecotoxicologists, theoreticians and conservation professionals, among others, in my research.

I mostly use Nicrophorus vespilloides burying beetles in the lab or the field to address the questions that I am interested in, but also work on other species including blue ground beetles Carabus intricatus, various species of dung beetles and birds, such as blue tits Cyanistes caeruleus and canada geese Branta canadensis.

Research projects

Current funded research projects 


Ecology and conservation of blue ground beetles 

Blue ground beetles Carabus intricatus are the largest species of UK ground beetle but are found at only a handful of sites, primarily on Dartmoor. They are a UK BAP priority species and in Category 1 (Endangered) of the Red Data Book list that is declining in Europe. The species has a very restricted distribution within the south west and has a stronghold on two Natural England managed Dartmoor NNRs - Dendles Wood and Bovey Valley Woods. The UK BAP for blue ground beetles states that ‘the key to expanding the range of this species is to restore or create more areas of suitable habitat’. However, relatively little is known about their biology, particularly their habitat requirements and preferences, population size and structure and foraging ecology. Such knowledge is essential in order to be able to implement successful conservation practices to boost populations.

This project aims to determine habitat preferences, spatio-temporal activity, foraging ecology and population characteristics of blue ground beetles both within the NNRs and land owned by the Dartmoor National Park Authority, Dartmoor Preservation Association and the Woodland Trust, with the longer term objective of ‘restoring or creating more areas of suitable habitat’ as prioritized by the UK BAP.

NERC CASE studentship in partnership with Dartmoor National Park Authority, Natural England, The Woodland Trust and Buglife

Brogan Pett is the PhD student 


Managing the competition: How do burying beetles and microbes sustainably coexist in competition over shared resources?

Antimicrobial resistance (AMR) is one of the most important public health issues that society currently faces. Inappropriate use of antibiotics has accelerated the rate at which bacteria have evolved resistance and the development of new antimicrobials is very expensive and time-consuming and has almost come to a halt. Consequently we need to develop better ways to sustainably utilize existing and future antimicrobials. Burying beetles provide an example of evolved resistance management so are ideal for addressing these issues.

In this project we are taking a novel eco-evolutionary approach to combatting antimicrobial resistance that experimentally perturbs this tractable system in order to unlock resistance management secrets from 100 million years of co-evolution between burying beetle parental care and microbes.  

NERC standard grant

Dr Michael Jardine is the PDRF 


Call of nature: How do livestock veterinary drugs impact dung beetles and other macroinvertebrates, their microbiota and associated ecosystem services?

The activities of dung beetles and other soil macroinvertebrates support the maintenance of healthy soils by facilitating the breakdown of dung through combined direct consumption and facilitated microbial community action, but livestock veterinary drugs such as avermectins and antibiotics threaten such ecosystem services. Although avermectins (wormers) and antibiotics are both routinely administered to livestock and may be present in dung at the same time the combinational impacts (negative or positive) of these veterinary drugs on dung beetle behaviour, reproduction, soil fauna-microbiome interactions, and associated ecosystem level consequences are likely to be substantive but have not been studied before.

This project aims to address these issues to provide a better understanding of the processes involved which may help improve food security and mitigate against antibiotic resistance, biodiversity loss and climate change in agricultural environments.

NERC ECORISC CDT studentship in partnership with UK Centre for Ecology & Hydrology and RSPB 

Laura Penny is the PhD student (starting in September 2023)

Research networks

​Current collaborations

  • Gillian Gilbert (RSPB)
  • Jo Hackman (Natural England)
  • Xav Harrison (University of Exeter)
  • Alastair Hotchkiss (Woodland Trust - now Natural Resources Wales)
  • Richard Knott (Dartmoor National Parks Authority) 
  • Laura Larkin (Buglife)
  • Ben Raymond (University of Exeter)
  • Mario Recker (University of Exeter)
  • Dave Spurgeon (UKCEH)
  • David Studholme (University of Exeter)
  • Andrew Whitehouse (Buglife)

Research grants

  • 2021 NERC Std Grant
    Managing the competition: How do burying beetles and microbes sustainably coexist in competition over shared resources?
  • 2011 NERC Std Grant
    "Social and co-evolutionary dynamics of mating and parental care"
  • 2009 NERC
    "Food, sex and death"
  • 2007 NERC
    "Costs and consequences of the structured family"
  • 2005 NERC Std Grant
    "Signals of genetic quality in a genetically heritable social environment"
  • 2005 NERC
    "Costs, consequences and context-dependency of intrafamilial conflict"

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Publications

Books

Royle NJ, Smiseth PT, Kölliker M (eds)(In Press). The Evolution of Parental Care., Oxford University Press. Abstract.

Journal articles

Pett BL, Raymond B, Hackman JR, Hotchkiss A, Knott R, Royle NJ (2024). Contrasting patterns of habitat use in a threatened carabid (<i>Carabus intricatus</i>) and a sympatric congener in ancient temperate rainforest. Insect Conservation and Diversity Abstract.
Downing BC, Silk MJ, Delahay RJ, Bearhop S, Royle NJ (2023). Culling‐induced perturbation of social networks of wild geese reinforces rather than disrupts associations among survivors. Journal of Applied Ecology, 60(12), 2613-2624. Abstract.
Houslay TM, Kitchener PA, Royle NJ (2020). Are older parents less flexible? Testing age-dependent plasticity in Nicrophorus vespilloides burying beetles. Animal Behaviour, 162, 79-86.
Carter MJ, Wilson AJ, Moore AJ, Royle NJ (2019). The role of indirect genetic effects in the evolution of interacting reproductive behaviors in the burying beetle, Nicrophorus vespilloides. Ecology and Evolution, 9(3), 998-1009. Abstract.
Smiseth PT, Royle NJ (2018). The resolution of conflict in families. Current Opinion in Insect Science, 28, 8-12. Abstract.
Royle NJ, Hopwood PE (2017). Covetable Corpses and Plastic Beetles—The Socioecological Behavior of Burying Beetles. Advances in the Study of Behavior, 49, 101-146. Abstract.
Griffith SC, Crino OL, Andrew SC, Nomano FY, Adkins-Regan E, Alonso-Alvarez C, Bailey IE, Bittner SS, Bolton PE, Boner W, et al (2017). Variation in Reproductive Success Across Captive Populations: Methodological Differences, Potential Biases and Opportunities. Ethology, 123(1), 1-29. Abstract.
Royle NJ, Alonzo SH, Moore AJ (2016). Co-evolution, conflict and complexity: what have we learned about the evolution of parental care behaviours?. Current Opinion in Behavioral Sciences, 12, 30-36.
Royle NJ (2016). Constraints and clutch size: a comment on Paquet and Smiseth. Behavioral Ecology, 27(3), 697-698.
Hopwood PE, Mazué GPF, Carter MJ, Head ML, Moore AJ, Royle NJ (2016). Do female Nicrophorus vespilloides reduce direct costs by choosing males that mate less frequently?. Biology Letters, 12(3). Abstract.
Hopwood PE, Moore AJ, Tregenza T, Royle NJ (2016). Erratum to Male burying beetles extend, not reduce, parental care duration when reproductive competition is high [J. Evol. Biol. 28: 1394-1402]. Journal of Evolutionary Biology, 29(1).
Hopwood PE, Moore AJ, Tregenza T, Royle NJ (2016). Niche variation and the maintenance of variation in body size in a burying beetle. Ecological Entomology, 41(1), 96-104. Abstract.
Royle NJ (2016). Parental Care: When the Sex Has to Stop. Current Biology, 26(11), R478-R480. Abstract.
Hopwood PE, Head ML, Jordan EJ, Carter MJ, Davey E, Moore AJ, Royle NJ (2016). Selection on an antagonistic behavioral trait can drive rapid genital coevolution in the burying beetle, Nicrophorus vespilloides. Evolution; international journal of organic evolution, 70(6), 1180-1188. Abstract.
Hopwood PE, Moore AJ, Tregenza T, Royle NJ (2016). The effect of size and sex ratio experiences on reproductive competition in <i>Nicrophorus vespilloides</i> burying beetles in the wild. Journal of Evolutionary Biology, 29(3), 541-550. Abstract.
Carter MJ, Head ML, Moore AJ, Royle NJ (2015). Behavioral plasticity and G × E of reproductive tactics in Nicrophorus vespilloides burying beetles. Evolution, 69(4), 969-978. Abstract.
Carter MJ, Head ML, Moore AJ, Royle NJ (2015). Behavioral plasticity and G × E of reproductive tactics in Nicrophorus vespilloides burying beetles. Evolution, 69(4), 969-978. Abstract.  Author URL.
Hopwood PE, Moore AJ, Tregenza T, Royle NJ (2015). Male burying beetles extend, not reduce, parental care duration when reproductive competition is high. J Evol Biol, 28(7), 1394-1402. Abstract.  Author URL.
Archer CR, Hempenstall S, Royle NJ, Selman C, Willis S, Rapkin J, Blount JD, Hunt J (2015). Testing the Effects of DL-Alpha-Tocopherol Supplementation on Oxidative Damage, Total Antioxidant Protection and the Sex-Specific Responses of Reproductive Effort and Lifespan to Dietary Manipulation in Australian Field Crickets (Teleogryllus commodus). Antioxidants (Basel), 4(4), 768-792. Abstract.  Author URL.
Head ML, Hinde CA, Moore AJ, Royle NJ (2014). Correlated evolution in parental care in females but not males in response to selection on paternity assurance behaviour. Ecology Letters, 17(7), 803-810. Abstract.
Head ML, Hinde CA, Moore AJ, Royle NJ (2014). Correlated evolution in parental care in females but not males in response to selection on paternity assurance behaviour. Ecol Lett, 17(7), 803-810. Abstract.  Author URL.
Lee VE, Head ML, Carter MJ, Royle NJ (2014). Effects of age and experience on contest behavior in the burying beetle, Nicrophorus vespilloides. Behav Ecol, 25(1), 172-179. Abstract.  Author URL.
Hopwood PE, Moore AJ, Royle NJ (2014). Effects of resource variation during early life and adult social environment on contest outcomes in burying beetles: a context-dependent silver spoon strategy?. Proc Biol Sci, 281(1785). Abstract.  Author URL.
Hopwood PE, Moore AJ, Royle NJ (2014). Effects of resource variation during early life and adult social environment on contest outcomes in burying beetles: a context-dependent silver spoon strategy?. Proceedings. Biological sciences / the Royal Society, 281(1785). Abstract.
Royle NJ (2014). Everybody has a social life. Can social network analysis help us understand why not just how? Comment on Pinter-Wollman et al. Behavioral Ecology, 25(2), 256-257.
Royle NJ, Russell AF, Wilson AJ (2014). The evolution of flexible parenting. Science, 345(6198), 776-781. Abstract.  Author URL.
Harold S, Wong Y, Baguette M, Bonsall MB, Clobert J, Royle NJ, Settele J (2013). BMC Ecology image competition: the winning images. BMC Ecol, 13 Abstract.  Author URL.
Royle NJ, Hopwood PE, Head ML (2013). Burying beetles. Curr Biol, 23(20), R907-R909.  Author URL.
Schuett W, Dall SRX, Wilson AJ, Royle NJ (2013). Environmental transmission of a personality trait: Foster parent exploration behaviour predicts offspring exploration behaviour in zebra finches. Biology Letters, 9(4). Abstract.
Benowitz KM, Head ML, Williams CA, Moore AJ, Royle NJ (2013). Male age mediates reproductive investment and response to paternity assurance. Proceedings of the Royal Society B: Biological Sciences, 280(1764). Abstract.
Benowitz KM, Head ML, Williams CA, Moore AJ, Royle NJ (2013). Male age mediates reproductive investment and response to paternity assurance. Proc Biol Sci, 280(1764). Abstract.  Author URL.
Benowitz KM, Head ML, Williams CA, Moore AJ, Royle NJ (2013). Male age mediates reproductive investment and response to paternity assurance. Proc Biol Sci, 280(1767).  Author URL.
Hopwood PE, Moore AJ, Royle NJ (2013). Nutrition during sexual maturation affects competitive ability but not reproductive productivity in burying beetles. Functional Ecology, 27(6), 1350-1357. Abstract.
Hopwood PE, Moore AJ, Royle NJ (2013). Nutrition during sexual maturation affects competitive ability but not reproductive productivity in burying beetles. Functional Ecology
Archer CR, Sakaluk SK, Selman C, Royle NJ, Hunt J (2013). Oxidative stress and the evolution of sex differences in life span and ageing in the decorated cricket, Gryllodes sigillatus. Evolution, 67(3), 620-634. Abstract.
Orledge JM, Blount JD, Hoodless AN, Royle NJ (2012). Antioxidant supplementation during early development reduces parasite load but does not affect sexual ornament expression in adult ring-necked pheasants. Functional Ecology, 26(3), 688-700. Abstract.
Royle NJ, Pike TW, Heeb P, Richner H, Kölliker M (2012). Offspring social network structure predicts fitness in families. Proc Biol Sci, 279(1749), 4914-4922. Abstract.  Author URL.
Archer CR, Sakaluk SK, Selman C, Royle NJ, Hunt J (2012). Oxidative stress and the evolution of sex differences in life span and ageing in the decorated cricket, gryllodes sigillatus. Evolution
Head ML, Berry LK, Royle NJ, Moore AJ (2012). Paternal Care: Direct and Indirect Genetic Effects of Fathers on Offspring Performance. Evolution, 66(11), 3570-3581. Abstract.
Head ML, Berry LK, Royle NJ, Moore AJ, Moore AJ (2012). Paternal care: Direct and indirect genetic effects of fathers on offspring performance. Evolution Abstract.
Archer CR, Zajitschek F, Sakaluk SK, Royle NJ, Hunt J (2012). Sexual selection affects the evolution of lifespan and ageing in the decorated cricket gryllodes sigillatus. Evolution
Archer CR, Zajitschek F, Sakaluk SK, Royle NJ, Hunt J (2012). Sexual selection affects the evolution of lifespan and ageing in the decorated cricket gryllodes sigillatus. Evolution, 66(10), 3088-3100. Abstract.
Orledge JM, ROYLE NJ, BLOUNT JD, PIKE TW, HOODLESS AN (2012). Synergistic effects of supplementation of dietary antioxidants during growth on adult phenotype in ring-necked pheasants, Phasianus colchicus.
Royle N, Pike T (2011). Do you think you're sexy?. Planet Earth(SUMMER), 6-7. Abstract.
Teuber K, Schiller J, Jakop U, Lüpold S, Orledge JM, Blount JD, Royle NJ, Hoodless A, Müller K (2011). MALDI-TOF mass spectrometry as a simple tool to determine the phospholipid/glycolipid composition of sperm: pheasant spermatozoa as one selected example. Anim Reprod Sci, 123(3-4), 270-278. Abstract.  Author URL.
Schuett W, Dall SRX, Royle NJ (2011). Pairs of zebra finches with similar “personalities” make better parents. ANIM BEHAV, 81, 609-618. Abstract.
Royle NJ, Hall ME, Blount JD, Forbes S (2011). Patterns of egg yolk antioxidant co-variation in an avian brood parasite-host system. Behavioral Ecology and Sociobiology, 65(2), 313-323. Abstract.
Royle NJ, Schuett W, Dall SRX (2010). Behavioural consistency and the resolution of sexual conflict over parental care. BEHAVIORAL ECOLOGY, 21, 1125-1130.
Walling CA, Royle NJ, Lindström J, Metcalfe NB (2010). Do female association preferences predict the likelihood of reproduction?. Behavioral Ecology and Sociobiology, 64(4), 541-548. Abstract.
Hall ME, Blount JD, Forbes S, Royle NJ (2010). Does oxidative stress mediate the trade-off between growth and self-maintenance in structured families?. Functional Ecology, 24(2), 365-373. Abstract.
Royle NJ, Pike TW (2010). Social feedback and attractiveness in zebra finches. Behavioral Ecology and Sociobiology, 64(12), 2015-2020. Abstract.
Archer CR, Royle N, South S, Selman C, Hunt J (2009). Nutritional geometry provides food for thought. J Gerontol a Biol Sci Med Sci, 64(9), 956-959. Abstract.  Author URL.
Samanta, M. Lindström, J. Royle, N.J. (2008). Behavioural phenotype affects social interactions in an animal social network. Proceedings of the Royal Society B, 275, 2515-2520.
Lindström, J. Metcalfe, N.B. (2008). Context-dependent mate choice in relation to social composition in green swordtails <em>Xiphophorus helleri</em>. Behavioral Ecology, 19, 998-1005.
Royle, N.J. Lindström, J. Metcalfe, N.B. (2008). Experience-induced preference for short-sworded males in the green swordtail <em>Xiphophorus helleri</em>. Animal Behaviour, 76, 271-276.
Harris, W.E. Royle, N.J. (2008). The capture of heritable variation for genetic quality through social competition. Genetica, 134, 89-97.
Royle, N.J. Metcalfe, N.B. Lindström, J. (2007). Early nutritional conditions, growth trajectories and mate choice: does compensatory growth lead to a reduction in adult attractiveness?. Behavioral Ecology and Sociobiology, 61, 1007-1014.
Royle, N.J. Metcalfe, N.B. Lindström, J. (2007). Green swordtails alter their age at maturation in response to the population level of male ornamentation. Biology Letters, 3, 144-146.
Hartley, I.R. Parker, G.A. (2006). Consequences of biparental care for begging and growth in zebra finches <em>Taeniopygia guttata</em>. Animal Behaviour, 72, 123-130
Lindström, J. Metcalfe, N.B. (2006). Effect of growth compensation on subsequent physical fitness in green swordtails <em>Xiphophrus helleri</em>. Biology Letters, 2(1), 39-42.
NJRoyle, Lindstrom J, Metcalfe NB (2006). Sexual selection, growth compensation and fast-start swimming performance in green swordtails Xiphophorus helleri. Functional Ecology, 20(4), 662-669.
NJRoyle, Lindstrom J, Metcalfe NB (2005). A poor start in life negatively affects dominance status in adulthood independent of body size in green swordtails Xiphophorus helleri. Proceedings of the Royal Society B Biological Sciences, 272(1575), 1917-1922.
Metcalfe, N.B. Royle, N.J. (2005). How are animals with ornaments predicted to compensate for a bad start in life? a dynamic optimization approach. Functional Ecology, 19, 421-428.
Hartley, I.R. Parker, G.A. (2004). Parental investment and family dynamics: Interactions between theory and empirical tests. Population Ecology, 46, 231-241
Surai, P.F. Hartley, I.R. (2003). The effect of variation in dietary intake on maternal deposition of antioxidants in zebra finch eggs. Functional Ecology, 17(4), 472-481.
Parker, G.A. Hartley, I.R. (2002). Begging for control: when are offspring solicitation behaviours honest?. Trends in Ecology & Evolution, 17(9), 434-440.
Royle, N.J. Hartley, I.R. (2002). Begging scrambles with unequal chicks: interactions between need and competitive ability. Ecology Letters, 5, 206-215.
Royle, N.J. Hartley, I.R. (2002). Intra-familial conflict and parental investment: a synthesis. Philosophical Transactions of the Royal Society B, 357, 295-307.
NJRoyle, Hartley IR, Parker GA (2002). Sexual conflict reduces offspring fitness in zebra finches. Nature, 416(6882), 733-736.
NJRoyle, Hartley IR, Surai PF (2001). Maternally derived androgens and antioxidants in bird eggs: complementary but opposing effects? . Behavioral Ecology, 12(4), 381-385.
Surai PF, Royle NJ, Sparks NH (2000). Fatty acid, carotenoid and vitamin a composition of tissues of free living gulls. Comp Biochem Physiol a Mol Integr Physiol, 126(3), 387-396. Abstract.  Author URL.
Hartley IR, Royle NJ, Shepherd M (2000). Growth rates of nestling Corn Buntings Miliaria calandra in relation to their sex. Ibis, 142(4), 668-671.
Royle N (2000). Overproduction in the lesser black-backed gull - can marginal chicks overcome the initial handicap of hatching asynchrony?. Journal of Avian Biology, 31(3), 335-344. Abstract.
Royle NJ, Surai PF, McCartney RJ, Speake BK (1999). Parental investment and egg yolk lipid composition in gulls. Functional Ecology, 13(3), 298-306. Abstract.
Royle NJ, Hartley IR, Owens IPF, Parker GA (1999). Sibling competition and the evolution of growth rates in birds. Proceedings of the Royal Society B: Biological Sciences, 266(1422), 923-932. Abstract.
Royle NJ, Hamer KC (1998). Hatching asynchrony and sibling size hierarchies in gulls: Effects on parental investment decisions, brood reduction and reproductive success. Journal of Avian Biology, 29(3), 266-272. Abstract.

Chapters

Royle NJ, Orledge JM, Blount JD (2015). Early Life-History Effects, Oxidative Stress, and the Evolution and Expression of Animal Signals. In  (Ed) Animal Signaling and Function: an Integrative Approach, 11-46. Abstract.
Wolf JB, Royle NJ, Hunt J (2014). Genotype-by-Environment Interactions when the Social Environment Contains Genes. In  (Ed) Genotype-by-Environment Interactions and Sexual Selection, 63-97. Abstract.
Royle, N.J. (2007). Sexual conflict and its implications for fitness. In Jamieson BGM (Ed) Reproductive biology and phylogeny of Aves (birds).

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Teaching

I am involved with teaching on the following modules:

  • BIO2430 Behavioural Ecology
  • BIO3136 Research Project
  • BIO3413 Animal Life Histories
  • BIO3419 Yukon-Alaska field course
  • BIOM052 MSci Research Project
  • BIOM4009 MSc Research Project
  • BIOM4019 MSc Africa Behavioural Ecology field course

Modules

2023/24


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Supervision / Group

Alumni

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Office Hours:

Tuesdays & Thursdays 1500-1600 (in person or online via Teams - send me a direct message to arrange the latter)

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