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Sigwart lab publications

Sigwart Lab members and alumni are in bold, student authors are indicated *
PDFs of all publications are freely available, please just ask! <>

    JD Sigwart. 2018. What Species Mean: A User's Guide to the Units of Biodiversity. CRC Press / Taylor & Francis. 241 pp.   

IUCN Red List global assessments     

Sigwart JD, C Chen, EA Thomas*. 2019. Chrysomallon squamiferum. The IUCN Red List of Threatened Species 2019: e.T103636217A103636261

And many more 

  endangered species 
Journal articles and book chapters:    
91    Linse K, G Bohrmann, JD Sigwart. 2019. Eualus amandae (Decapoda: Caridea: Thoridae) is an indicator of active venting sites in the Southern Ocean. Marine Biodiversity.      
90    Sigwart JD, GJ Vermeij, P Hoyer*. 2019. Why do chitons curl into a ball? Biology Letters. 15(10):20190429.     in the news! 
89   Ibáñez CM, Waldisperg M, Torres FI, Carrasco SA, Sellanes J, Pardo-Gandarillas MC, Sigwart JD.2019. Environmental and ecological factors mediate taxonomic composition and body size of polyplacophoran assemblages along the Peruvian Province. Scientific Reports. 9: 15934.   open access!  
88    Cunningham EM*, JD Sigwart. 2019. Environmentally accurate microplastic levels and their absence from exposure studies. Integrative and Comparative Biology.    
87    Morrow C, P Cárdenas, N Boury-Esnault, B Picton, G McCormack, R Van Soest, N Redmond, A Collins, C Maggs, JD Sigwart, AL Allcock. 2019. Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae). Zoological Journal of the Linnean Society.    
86    Sigwart JD, C Chen, EA Thomas*, AL Allcock, M Böhm, M Seddon. 2019. Red Listing can protect deep-sea biodiversity. Nature Ecology & Evolution.     in the news!
85    Wong NLWS, JD Sigwart. 2019. Natural history clues to the evolution of bivalved gastropods (Mollusca: Gastropoda: Sacoglossa: Juliidae). Marine Biodiversity.   open access! 
84    Kingston ACN, JD Sigwart, DR Chappell, DI Speiser. 2019. Monster or multiplacophoran: A teratological specimen of the chiton Acanthopleura granulata with a valve split into independent and symmetrical halves. Acta Zoologica.
83    Sigwart JD, C Chen. 2018. A new deep water chiton (Mollusca: Polyplacophora) from hydrothermal vent ecosystems in the Okinawa Trough, Japan. Zootaxa. 4531: 430–436     
82   Becker C, EM Cunningham*, JTA Dick, LE Eagling, JD Sigwart. 2018. A unified scale for female reproductive stages in Nephrops norvegicus: evidence from macroscopic and microscopic characterisation. Journal of Morphology.    
81   Sigwart JD, C Chen. 2018. Comparative oxygen consumption of gastropod holobionts from deep-sea hydrothermal vents in the Indian Ocean. Biological Bulletin.  

80   Sigwart JD, KD Bennett, SM Edie, L Mander, B Okamura, K Padian, Q Wheeler, J Winston, N Yeung. 2018, Measuring biodiversity and extinction – present and past. Integrative and Comparative Biology.    
79   Becker C, JTA Dick, EM Cunningham*, C Schmitt, JD Sigwart. 2018. The crustacean cuticle does not record chronological age: new evidence from the gastric mill ossicles. Arthropod Structure and Development.    
78   Chen C, K Uematsu, K Linse, JD Sigwart. 2018. Cryptic niche switching in a chemosymbiotic gastropod. Proceedings of the Royal Society B.  

3D models! In the news!

77   Sigwart JD, A Garbett*. 2018. Biodiversity assessment, DNA barcoding, and the minority majority. Integrative and Comparative Biology.    
76   Sumner-Rooney LH, JD Sigwart. 2018. Do chitons have a brain? New evidence for diversity and complexity in the polyplacophoran central nervous system. Journal of Morphology.   3D models!
75   Sigwart JD, MK Wicksten, MG Jackson, S Herrera. 2018. Deep-sea video technology tracks a monoplacophoran to the end of its trail. Marine Biodiversity.   open access! cool video!
74   Sumner-Rooney LH, I Rahman, JD Sigwart, E Ullrich-Lüter. 2018. Whole-body photoreceptor networks are independent of crystalline ‘lenses’ in brittle stars. Proceedings of the Royal Society B. 285: 20172590.   3D models! in the news!
73   Eagling* LE, EC Ashton, AC Jensen, JD Sigwart, D Murray, D Roberts. Spatial and temporal differences in gonad development, sex ratios and reproductive output influence the sustainability of exploited populations of the European oyster, Ostrea edulis. Aquatic Conservation.    
72   South* J, D Welsh, A Anton, JD Sigwart, JTA Dick. Effects of increasing temperature to the functional response of the intertidal shanny Lipophrys pholis. Journal of Fish Biology.    
71   Dell’Angelo B, W Renda, M Sosso, JD Sigwart, S Giacobbe. A new species of Callochiton (Mollusca: Polyplacophora) from the Strait of Messina (central Mediterranean). Archiv für Molluskenkunde. 146: 243–250.    
70   Ibáñez CM, RD Sepúlveda, JD Sigwart. 2017. Comparative allometric variation in intertidal chitons (Polyplacophora: Chitonidae). Zoomorphology    
69   Sigwart JD, MD Sutton, KD Bennett. How big is a genus? Towards a nomothetic systematics. Zoological Journal of the Linnean Society.    
68   Sigwart JD, Schwabe E. 2017. Anatomy of the many feeding types in polyplacophoran molluscs. Invertebrate Zoology. Invertebrate Zoology, 14: 205–216   open access!
67   Sigwart JD. 2017. Molluscs all beneath the sun, one shell, two shells, more, or none. Current Biology. 27: R708–R710.    
66   Sumner-Rooney LH, JD Sigwart. 2017. Lazarus in the museum: resurrecting historic specimens through new technology. Invertebrate Zoology.   open access!
65   Sigwart JD, Chen C. 2017. Life history, patchy distribution, and patchy taxonomy in a shallow-water invertebrate (Mollusca: Polyplacophora: Lepidopleurida). Marine Biodiversity.   open access!
64   Sigwart JD, L McLean*. 2017 Contribution of Caulerpa spp. to marine mollusc species richness in the megadiverse Philippines. Visaya.    


  Sigwart JD, C Chen, L Marsh. 2017. Is mining the seabed bad for molluscs? The Nautilus.   in the news!


  Chen C, K Uematsu, K Linse, JD Sigwart. 2017. By more ways than one: Rapid convergence in adaptations to hydrothermal vents shown by 3D anatomical reconstruction of Gigantopelta (Mollusca: Neomphalina). BMC Evolutionary Biology.   open access!
interactive 3D model!


  Geraldi N, C Bertollini*, MC Emmerson, D Roberts, JD Sigwart, NE O’Connor. 2017. Aggregations of brittle stars can provide similar ecological roles as mussel reefs. Marine Ecology Progress Series.    


  Sigwart JD, LH Sumner-Rooney, J Dickey*, N Carey. 2017. The scaphopod foot is ventral: more evidence from the anatomy of Rhabdus rectius (Dentaliida: Rhabdidae). Molluscan Research.  

3D model!


  Carey N, S Dupont, JD Sigwart. 2016. Sea hare Aplysia punctata (Mollusca: Gastropoda) can maintain shell calcification under extreme ocean acidification. Biological Bulletin.  

open access!


  Sigwart JD. 2016. The chiton stripe tease. Marine Biodiversity.  

open access!


  Sumner-Rooney* LH, JD Sigwart, L Smith, J McAfee*, ST Williams. 2016. Repeated eye reduction events reveal multiple pathways to degeneration in a family of marine snails. Evolution.  

interactive 3D models!


Sigwart JD. 2016. Deep trees: woodfall biodiversity dynamics in present and past oceans. Deep Sea Research Part II.





Sirenko BI, JD Sigwart, B Dell’Angelo. 2016. Hanleya hanleyi Bean in Thorpe, 1844 (Mollusca, Polyplacophora) and the influence of the Gulf Stream System on its distribution. Ruthenica.





Calderwood* J, JD Sigwart. 2016. Broken pieces: Can variable ecological interactions be deduced from the remains of crab attacks on bivalve shells? Lethaia.





JD Sigwart, LH Sumner-Rooney*. 2016. Mollusca: Caudofoveata, Monoplacophora, Polyplacophora, Scaphopoda, Solenogastres. In: Schmidt-Rhaesa, Harzsch, and Purschke, eds. Structure and Evolution of Invertebrate Nervous Systems. Oxford University Press. [book chapter]




DS Green, B Boots, JD Sigwart, S Jiang, C Rocha. 2016. Effects of conventional and biodegradable microplastics on a marine ecosystem engineer and nutrient cycling. Environmental Pollution Bulletin.





JD Sigwart, G Lyons*, A Fink, MA Gutowska, D Murray, F Melzner, JDR Houghton, MY Hu. 2016. Elevated pCO2 drives lower growth and yet increased calcification in the early life history of the cuttlefish Sepia officinalis (Mollusca: Cephalopoda). ICES Journal of Marine Science.




  JD Sigwart, PA Green*, SB Crofts. 2015. Functional morphology in chitons (Mollusca, Polyplacophora): influences of environment and ocean acidification. Marine Biology.  



LH Sumner-Rooney*, M Schrödl, E Lodde-Bensch, DR Lindberg, M Heß, GP Brennan, JD Sigwart. 2015. A neurophylogenetic approach provides new insight to the evolution of Scaphopoda. Evolution & Development.


interactive 3D model!



M Cledón, JD Núñeza, EH Ocampoa, JD Sigwart. 2015. Sexual traits plasticity of the potentially invasive limpet Bostrycapulus odites (Gastropoda: Calyptraeidae) within its natural distribution in South America. Marine Ecology





C Chen*, JT Copley, K Linse, AD Rogers, JD Sigwart. 2015. The heart of a dragon: 3D anatomical reconstruction of the ‘scaly-foot gastropod’ (Mollusca: Gastropoda: Neomphalina) reveals its extraordinary circulatory system. Frontiers in Zoology.


open access!
interactive 3D model!



JD Sigwart, BI Sirenko. 2015. A new name for the deep-sea chiton Leptochiton clarki Sigwart & Sirenko non Berry (Lepidopleurida: Leptochitonidae). Zootaxa.





LH Sumner-Rooney*, JD Sigwart. 2015. Is the Schwabe organ a retained larval eye? Anatomical and behavioural studies of a novel sense organ in adult Leptochiton asellus (Mollusca, Polyplacophora) indicate links to larval photoreceptors. PLoS ONE.


open access!



DR Lindberg, JD Sigwart. 2015. What is the molluscan osphradium? A reconsideration of homology. Zoologischer Anzeiger.





C Chen*, JT Copley, K Linse, AD Rogers, JD Sigwart. 2015. How the mollusc got its scales: convergent evolution of the molluscan scleritome. Biological Journal of the Linnean Society





JD Sigwart, DR Lindberg. 2015. Consensus and confusion in molluscan trees: Evaluating morphological and molecular phylogenies. Systematic Biology.


open access!



JD Sigwart, C Todt, A Scheltema. 2014. Who are the “Aculifera”? Journal of Natural History.





N Carey*, JD Sigwart. 2014. Size matters: body size modulates responses to ocean acidification and temperature. Biology Letters.





HP Kunc, GN Lyons*, JD Sigwart, KE McLaughlin, JDR Houghton, 2014. Anthropogenic noise affects behaviour across sensory modalities. American Naturalist





JD Sigwart, N Carey*. 2014. Grazing under experimental hypercapnia and elevated temperature does not affect the radula of a chiton (Mollusca, Polyplacophora, Lepidopleurida). Marine Environmental Research





J Calderwood*, NE O’Connor, JD Sigwart, D Roberts. 2014. Determining optimal duration of seed translocation periods for benthic mussel (Mytilus edulis) cultivation using physiological and behavioural measures of stress. Aquaculture.





N Carey*, S Dupont, B Lundve, JD Sigwart. 2014. One size fits all: stability of metabolic scaling under warming and ocean acidification in echinoderms. Marine Biology.





LH Sumner-Rooney*, JA Murray, SD Cain, JD Sigwart. 2014. Do chitons have a compass? Evidence for magnetic sensitivity in Polyplacophora. Journal of Natural History.





LH Sumner-Rooney*, SD Cain, GP Brennan, JD Sigwart. 2014. A test for mucus removal in the chiton Lepidochitona cinerea (Linnaeus, 1767) (Polyplacophora: Chitonida: Ischnochitonidae). The Veliger.


open access!



JD Sigwart, N Carey*, PJ Orr. 2014. How subtle are the biases that shape the fidelity of the fossil record? A test using marine molluscs. Palaeogeography, Palaeoclimatology, Palaeoecology





JD Sigwart, LH Sumner-Rooney*, E Schwabe, M Hess, G Brennan, M Schroedl. 2014. A new sensory organ in “primitive” molluscs (Polyplacophora: Lepidopleurida), and its context in the nervous system of chitons. Frontiers in Zoology.


open access!
interactive 3D models!



JD Sigwart, I Stoeger*, T Knebelsberger, E Schwabe. 2013. Chiton phylogeny (Mollusca: Polyplacophora) and placement of the enigmatic species Choriplax grayi (H Adams & Angas, 1864). Invertebrate Systematics.
[this paper was in the top-10 ‘Most Read’ articles in Invertebrate Systematics and the number 1 ranked ‘Most Read’ paper on a marine topic]





I Stöger*, JD Sigwart, Y Kano, T Knebelsberger, BA Marshall, E Schwabe, M Schrödl. 2013. The continuing debate on deep molluscan phylogeny: Evidence for Serialia (Mollusca, Monoplacophora + Polyplacophora). BioMed Research


open access!



SP Ávila, JD Sigwart. 2013. New records for the shallow-water chiton fauna (Mollusca, Polyplacophora) of the Azores. ZooKeys


open access!



CC Morrow*, NE Redmond, BE Picton, RW Thacker, AG Collins, CA Maggs, JD Sigwart, AL Allcock. 2013. Molecular phylogenies support homoplasy of multiple morphological characters used in the taxonomy of Heteroscleromorpha (Porifera: Demospongiae). Integrative and Comparative Biology





S Duperron, M-A Pottier, N Léger, SM Gaudron, N Puillandre, S Le Prieur, JD Sigwart, J Ravaux, M Zbinden. 2013. A tale of two chitons: is habitat specialisation linked to distinct associated bacterial communities? FEMS Microbiology Ecology.





N Carey*, JD Sigwart, J Richards. 2013. Economies of scaling: allometry of metabolism is linked to activity, metabolic rate and habitat. Journal of Experimental Marine Biology and Ecology.





MD Sutton, DEG Briggs, David J Siveter, Derek J Siveter, JD Sigwart. 2012. A Silurian armoured aplacophoran: implications for molluscan phylogeny. Nature.


3D model!



N Carey*, A Galkin, P Henrikkson*, J Richards, JD Sigwart. 2012. Variation in oxygen consumption among 'living fossils'(Mollusca: Polyplacophora). Journal of the Marine Biology Association of the UK.





JD Sigwart, BI Sirenko. 2012. Deep-sea chitons from sunken wood in the West Pacific (Mollusca: Polyplacophora: Lepidopleurida): taxonomy, distribution, and seven new species. Zootaxa.





J Doonan*, G Beatty, JD Sigwart, J Provan. 2012. Extensive local-scale gene flow and long-term population stability in the intertidal mollusc Katharina tunicata (Mollusca: Polyplacophora). Biological Journal of the Linnean Society.





MD Sutton, JD Sigwart. 2012. A chiton without a foot. Palaeontology.


3D models!



JM Yearsley, JD Sigwart, 2011. Larval transport modelling of deep-sea invertebrates points to potential undiscovered populations. PLoS ONE.


open access!



SK Donovan, MD Sutton, JD Sigwart. 2011. The last meal of the Late Ordovician mollusc ‘Helminthochitonthraivensis Reed, 1911, from the Lady Burn Starfish Beds, southwest Scotland. Geological Journal.

3D model!



JD Sigwart, E Schwabe, H Saito, S Samadi, G Giribet. 2011. Evolution in the deep sea: combined analysis of the earliest-derived living chitons using molecules and morphology (Mollusca, Polyplacophora, Lepidopleurida). Invertebrate Systematics.

[2011-2013: this paper was in the top-10 ‘Most Read’ articles in Invertebrate Systematics]




SK Donovan, MD Sutton, JD Sigwart. 2010. Crinoids for lunch? An unexpected biotic interaction from the Upper Ordovician of Scotland. Geology.




P Viscardi, M Sakumoto, JD Sigwart. 2010. How long is a piece of Strix? Methods in measuring and measuring the measurers. Zoomorphology




JD Sigwart, LM Leonard. 2009. Coming out of its shell: Molluscan collections in the National Museum of Ireland. Irish Naturalists’ Journal.




KL Chritz*, GJ Dyke, A Zazzo, AM Lister, NT Monaghan, JD Sigwart. 2009. Palaeobiology of an extinct Ice Age mammal: Stable isotope and cementum analysis of giant deer teeth. Palaeogeography, Palaeoclimatology, Palaeoecology.




JD Sigwart. 2009. Primitive living chitons: Morphological cladistic analysis as a model for character evaluation. American Malacological Bulletin.

Proceedings of the symposium ‘Molluscs as Models for Evolution’ Antwerp, 2007.




JD Sigwart. 2009. Parasitic foraminifers on a deep-sea chiton (Mollusca, Polyplacophora, Leptochitonidae) from Iceland. Marine Biology Research




JD Sigwart. 2009. The deep-sea chiton Nierstraszella (Mollusca: Polyplacophora: Lepidopleurida) in the Indo-West Pacific: taxonomy, morphology, and a bizarre ectosymbiont. Journal of Natural History.




JD Sigwart. 2008. Gross anatomy and positional homology of gills, gonopores, and nephridiopores in “basal” living chitons (Polyplacophora: Lepidopleurina). American Malacological Bulletin.




JD Sigwart. 2008. Crystal Creatures: Context for the Dublin Blaschka Congress. Historical Biology.




JD Sigwart, MD Sutton. 2007. Deep molluscan phylogeny: Synthesis of palaeontological and neontological data. Proceedings of the Royal Society B.




JR Voight, JD Sigwart. 2007. Scarred limpets at hydrothermal vents: Evidence of predation by deep-sea whelks. Marine Biology.




JD Sigwart, KI Schnetler, SB Andersen. 2007. First record of a chiton from the Palaeocene of Denmark (Polyplacophora: Leptochitonidae) and its phylogenetic affinities. Journal of Systematic Palaeontology.




JD Sigwart. 2007. The Irish fossil Polyplacophora. Irish Journal of Earth Sciences.




JD Sigwart. 2007. Hidden biodiversity: Chitons in Ireland. pp. 18–20 In R Moles, ed. Proceedings of ESAI/ENVIRON 2005. University of Limerick.




P Viscardi, JD Sigwart, NT Monaghan. 2006. Climate control in an uncontrollable building. Collections Forum.




JD Sigwart, E Callaghan, A Colla*, GJ Dyke, SL McCaffrey* NT Monaghan. 2005. Belatedly hatching ornithology collections at the National Museum of Ireland. Zoologische Mededelingen.




GJ Dyke, JD Sigwart. 2005. A search for a ‘smoking gun’: No need for an alternative to the Linnaean System of classification. pp. 49–65 In A Minelli, G Ortalli and G Sanga, eds. Animal Names, proceedings of the International Conference Animal Names organised by Istituto Veneto di Scienze, Lettere ed Arti, Venice. [Book chapter]



Contact Information

Queen's University Marine Laboratory (QML)
12-13 The Strand, Portaferry
Co. Down, Northern Ireland, BT22 1PF
Phone: +44 (0)28 427 28230

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