Abstract
Taxonomy is a key to life not only in providing guides to distinguishing species but in opening the door to knowledge about biodiversity. Names of species, as the only standardised measure of biodiversity, are essential for communication of information about nature. However, new knowledge means that what we understand each species to be may change over time. Online species databases are improving accessibility to this knowledge and expertise and provide an easy way to keep up to date with species nomenclature and classification. I propose three practical priorities for taxonomy: (1) complete a world list of all known species; (2) establish an online cooperative community infrastructure that updates species nomenclature and links it to associated literature, information and expertise; (3) create an internet portal as a key to life on Earth. The first is near completion in the Catalogue of Life. The second has an exemplar in the World Register of Marine Species. The third goal has not begun but some of its ingredients exist. This key to life should make it easy for anybody with internet access to accurately name, and discover unnamed, species, and learn about their natural history. Moreover, a “key to life” infrastructure suitably supported by the community and science organisations, could be a focal point for a world taxonomic society and a taxonomy based mega-science initiative to understand life on Earth.
References
Alroy, J. (2002) How many named species are valid? Proceedings of the National Academy of Sciences, 99 (6), 3706–3711.
https://doi.org/10.1073/pnas.062691099
Anderson, J.G. (2017) Why ecology needs natural history. American Scientist, 105 (5), 290–298.
https://doi.org/10.1511/2017.105.5.290
Arfianti, T, Wilson, S. & Costello, M.J. (2018) Progress in the discovery of amphipod crustaceans. PeerJ, 6, e5187 https://doi.org/10.7717/peerj.5187
Bebber, D.P., Wood, J.R., Barker, C. & Scotland, R.W. (2014) Author inflation masks global capacity for species discovery in flowering plants. New Phytologist, 201, 700–706.
https://doi.org/10.1111/nph.12522
Bebber, D.P., Carine, M.A., Wood, J.R.I., Wortley, A.H., Harris, D.J., Prance, G.T., Davidse, G., Paige, J., Pennington, T.D., Robson, N.K.B. & Scotland, RW. (2010) Herbaria are a major frontier for species discovery. Proceedings of the National Academy of Sciences USA, 107, 22169–22171.
https://doi.org/10.1073/pnas.1011841108
Bebber, D.P., Marriott, F.H., Gaston, K.J., Harris, S.A. & Scotland, R.W. (2007) Predicting unknown species numbers using discovery curves. Proceedings of the Royal Society B: Biological Sciences, 274 (1618), 1651–1658.
https://doi.org/10.1098/rspb.2007.0464
BHL Consortium. (2020). Biodiversity Heritage Library. Available from: https://www.biodiversitylibrary.org (Accessed 1 Mar. 2020)
Bisby, F.A. (2000) The quiet revolution: biodiversity informatics and the internet. Science, 289 (5488), 2309–2312.
https://doi.org/10.1126/science.289.5488.2309
Boero, F. (2010) The study of species in the era of biodiversity: a tale of stupidity. Diversity, 2 (1), 115–126.
https://doi.org/10.3390/d2010115
Borkent, A. (2020) Shrinking biodiversity, dwindling taxonomy and building a broader science. Megataxa, 1, 49–52.
https://doi.org/10.11646/megataxa.1.1.11
Boxshall, G. & Self, D. (2011) UK Taxonomy & Systematics Review-2010. Results of survey undertaken by the Review Team at the Natural History Museum serving as contractors to the Natural Environment Research Council (NERC).
Britz R., Hundsdörfer A. & Fritz U. (2020) Funding, training, permits-the three big challenges of taxonomy. Megataxa, 1, 46–48.
https://doi.org/10.11646/megataxa.1.1.10
Burgin, C.J., Colella, J.P., Kahn, P.L. & Upham, N.S. (2018) How many species of mammals are there? Journal of Mammalogy, 99 (1), 1–14.
https://doi.org/10.1093/jmammal/gyx147
Christenhusz M.J.M. (2020) On species concepts, phylogenetics and the science of natural history-three current issues facing taxonomy. Megataxa, 1, 63–66.
https://doi.org/10.11646/megataxa.1.1.14
Costello M.J. (2015) Biodiversity: the known, unknown and rates of extinction. Current Biology, 25 (9), R368–R371
https://doi.org/10.1016/j.cub.2015.03.051
Costello, M.J., Emblow C.S. & Picton B.E. (1996) Long term trends in the discovery of marine species new to science which occur in Britain and Ireland. Journal of the marine biological Association of the United Kingdom, 76, 255–257.
https://doi.org/10.1017/S0025315400029234
Costello, M.J., Vanhoorne B. & Appeltans, W. (2015a) Progressing conservation of biodiversity through taxonomy, data publication and collaborative infrastructures. Conservation Biology, 29 (4), 1094–1099.
https://doi.org/10.1111/cobi.12496
Costello, M.J., Appeltans, W., Bailly, N., Berendsohn, W.G., de Jong, Y., Edwards, M., Froese, R., Huettmann, F., Los, W., Mees, J., Segers, H. & Bisby, FA. (2014c) Strategies for the sustainability of online open-access biodiversity databases. Biological Conservation, 173, 155–165.
https://doi.org/10.1016/j.biocon.2013.07.042
Costello, M.J., Bouchet, P., Boxshall, G., Fauchald, K., Gordon, D.P., Hoeksema, B.W., Poore, G.C.B, van Soest, R.W.M., Stöhr, S., Walter, T.C., Vanhoorne, B, Decock, W. & Appeltans, W. (2013a) Global coordination and standardisation in marine biodiversity through the World Register of Marine Species (WoRMS) and related databases. PLoS ONE, 8 (1), e51629.
https://doi.org/10.1371/journal.pone.0051629
Costello, M.J. & Chaudhary, C. (2017) Marine biodiversity, biogeography, deep-sea gradients, and conservation. Current Biology, 27, R511–R527.
https://doi.org/10.1016/j.cub.2017.04.060
Costello, M.J., Horton, T. & Kroh, A. (2018) Sustainable biodiversity databasing: international, collaborative, dynamic, centralised. Trends in Ecology and Evolution, 33 (11), 803–805.
https://doi.org/10.1016/j.tree.2018.08.006
Costello, M.J., Houlding, B. & Wilson, S. (2014b) As in other taxa, relatively fewer beetles are being described by an increasing number of authors: Response to Löbl and Leschen. Systematic Entomology, 39, 395–399.
https://doi.org/10.1111/syen.12068
Costello, M.J, Lane, M., Wilson, S. & Houlding, B. (2015b) Factors influencing when species are first named and estimating global species richness. Global Ecology and Conservation, 4, 243–254.
https://doi.org/10.1016/j.gecco.2015.07.001
Costello, M.J., May, R.M. & Stork, N.E. (2013b) Can we name Earth’s species before they go extinct? Science, 339, 413–416.
https://doi.org/10.1126/science.1230318
Costello, M.J., May, R.M. & Stork N.E. (2013c) Response to Comments on “Can we name Earth’s species before they go extinct?” Science, 341, 237.
https://doi.org/10.1126/science.1237381
Costello, M.J. & Wieczorek, J. (2014) Best practice for biodiversity data management and publication. Biological Conservation, 173, 68–73.
https://doi.org/10.1016/j.biocon.2013.10.018
Costello, M.J., Wilson, S.P. & Houlding, B. (2012). Predicting total global species richness using rates of species description and estimates of taxonomic effort. Systematic Biology, 61(5), 871–883.
https://doi.org/10.1093/sysbio/syr080
Costello, M.J. & Wilson, S.P. (2011) Predicting the number of known and unknown species in European seas using rates of description. Global Ecology and Biogeography, 20, 319–330.
https://doi.org/10.1111/j.1466-8238.2010.00603.x
Costello, M.J., Houlding, B. & Joppa, L. (2014a) Further evidence of more taxonomists discovering new species, and that most species have been named: response to Bebber et al. (2014). New Phytologist, 202, 739–740.
https://doi.org/10.1111/nph.12689
Costello, M.J. Wilson, S. & Houlding, B. (2013d) More taxonomists but a declining catch of species discovered per unit effort. Systematic Biology, 62 (4), 616–624.
https://doi.org/10.1093/sysbio/syt024
Costello, M.J. (2016) Global biodiversity and biogeography of parasites. Integrative and Comparative Biology, 56, E44–E44.
Costello, M.J. (2019) Unhelpful inflation of threatened species. Science, 365 (6451), 332–333.
https://doi.org/10.1126/science.aay3467
Costello, M.J., Emblow, C.S., Bouchet, P. & Legakis, A. (2006) European marine biodiversity inventory and taxonomic resources: state of the art and gaps in knowledge. Marine Ecology Progress Series, 316, 257–268.
https://doi.org/10.3354/meps316257
David, J., Garrity, G.M., Greuter, W., Hawksworth, D.L., Jahn, R., Kirk, P.M., McNeill, J., Michel, E., Knapp, S., Patterson, D.J. & Tindall, B.J. (2012) Biological nomenclature terms for facilitating communication in the naming of organisms. ZooKeys, 192, 67.
https://doi.org/10.3897/zookeys.192.3347
Dayton, P.K. & Sala, E. (2001) Natural history: the sense of wonder, creativity and progress in ecology. Scientia Marina, 65(S2), 199–206.
https://doi.org/10.3989/scimar.2001.65s2199
De Clerck O., Guiry M.D., Leliaert F., Samyn Y. & Verbruggen H. (2013) Algal taxonomy: a road to nowhere? Journal of Phycology, 49(2):215–225.
https://doi.org/10.1111/jpy.12020
Deng, J., Li, K., Chen, C., Wu, S. & Huang, X. (2016) Discovery pattern and species number of scale insects (Hemiptera: Coccoidea). PeerJ, 4, p.e2526.
https://doi.org/10.7717/peerj.2526
Deng, J., Wang, X., Zeng, L., Zou, X. & Huang, X. (2019) Dynamics of global institutional collaboration in insect taxonomy reveal imbalance of taxonomic effort. Insect Conservation and Diversity, 12 (1), 18–28.
https://doi.org/10.1111/icad.12298
Edgar, G.J. & Stuart-Smith, R.D. (2014) Systematic global assessment of reef fish communities by the Reef Life Survey program. Scientific Data, 1(1), 1–8.
https://doi.org/10.1038/sdata.2014.7
Eschmeyer, W.N., Fricke R., Fong, J.D. & Polack, D. (2010) Marine fish biodiversity: A history of knowledge and discovery (Pisces). Zootaxa, 2525, 19–50.
https://doi.org/10.11646/zootaxa.2525.1.2
Fautin, D.G., Malarky, L. & Soberón, J. (2013) Latitudinal diversity of sea anemones (Cnidaria: Actiniaria). The Biological Bulletin, 224 (2), 89–98.
https://doi.org/10.1086/BBLv224n2p89
Fontaine, B., van Achterberg, K., Alonso-Zarazaga, M.A., Araujo, R., Asche, M., Aspöck, H., Aspöck, U., Audisio, P., Aukema, B., Bailly, N., Balsamo, M., Bank, R.A., Belfiore, C., Bogdanowicz, W., Boxshall, G., Burckhardt, D., Chylarecki, P., Deharveng, L., Dubois, A., Enghoff, H., Fochetti, R., Fontaine, C., Gargominy, O., Gomez Lopez, M.S., Goujet, D., Harvey, M.S., Heller, K.G., van Helsdingen, P., Hoch, H., De Jong, Y., Karsholt, O., Los, W., Magowski, W., Massard, J.A., McInnes, S.J., Mendes, L.F., Mey, E., Michelsen, V., Minelli, A., Nafrýa, J.M.N., van Nieukerken, E.J., Pape, T., De Prins, W., Ramos, M., Ricci, C., Roselaar, C., Rota, E., Segers, H., Timm, T., van Tol, J. & Bouchet, P. (2012) New Species in the Old World: Europe as a frontier in biodiversity exploration, a test bed for 21st century taxonomy. PLoS ONE, 7 (5), e36881.
https://doi.org/10.1371/journal.pone.0036881
Giam, X., Scheffers, B.R., Sodhi, N.S., Wilcove, D.S., Ceballos, G. & Ehrlich, P.R. (2012) Reservoirs of richness: least disturbed tropical forests are centres of undescribed species diversity. Proceedings of the Royal Society B: Biological Sciences, 279 (1726), 67–76.
https://doi.org/10.1098/rspb.2011.0433
Gordon, D.P., Beaumont, J., MacDiarmid, A., Robertson, D.A. & Ahyong, S.T. (2010) Marine Biodiversity of Aotearoa New Zealand. PLoS ONE, 5 (8), e10905.
https://doi.org/10.1371/journal.pone.0010905
Gordon, D.P. & Costello, M.J. (2016) Bryozoa - not a minor phylum. New Zealand Science Review, 73 (3), 63–66.
Griffiths, C.L. (2005) Coastal marine biodiversity in East Africa. Indian Journal of Marine Sciences, 34 (1), 35–41.
Guiry, M.D. (2012) How many species of algae are there?. Journal of Phycology, 48(5), 1057–1063.
https://doi.org/10.1111/j.1529-8817.2012.01222.x
Guiry, M.D. & Guiry, G.M. (2020) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Available from: https://www.algaebase.org (Accessed 24 Feb. 2020)
Hobern, D., Baptiste, B., Copas, K., Guralnick, R., Hahn, A., van Huis, E., Kim, E.S., McGeoch, M., Naicker, I., Navarro, L. & Noesgaard, D. (2019) Connecting data and expertise: a new alliance for biodiversity knowledge. Biodiversity Data Journal, 7, e33679.
https://doi.org/10.3897/BDJ.7.e33679
Hutchings, P.A. (2020) Major issues facing taxonomy-a personal perspective. Megataxa, 1, 43–45.
https://doi.org/10.11646/megataxa.1.1.9
Joppa, L.N., Roberts, D.L. & Pimm, S.L. (2011) The population ecology and social behaviour of taxonomists. Trends in Ecology and Evolution, 26, 551–553.
https://doi.org/10.1016/j.tree.2011.07.010
Kroh, A., Costello, M.J. & Horton, T. (2019) Biodiversity databases in the future: reply to Cene Fišer. Trends in Ecology and Evolution, 34 (3), 185–186.
https://doi.org/10.1016/j.tree.2018.12.011
Liu, Y., Dietrich, C., Braxton, S. & Wang, Y. (2019) Publishing trends and productivity in insect taxonomy from 1946 through 2012 based on an analysis of the Zoological Record for four species-rich families. European Journal of Taxonomy, 504, 1–24.
https://doi.org/10.5852/ejt.2019.504
Lohrmann, V., Vohland, K., Ohl, M. & Häuser, C. (2012) Taxonomische Forschungin Deutschland - Eine Übersichtsstudie. Museum für Naturkunde, Berlin. Available from: http://www.biodiversity.de/images/stories/Downloads/taxo-studie-2012.pdf (Accessed 17 Jun. 2012)
Lovejoy, T.E., Brouillet, L., Doolittle, W.F., Gonzalez, A., Green, D.M., Hall, P., Hebert, P., Herrmann, T.M., Hyde, D., Lee, J. & Maddison, W.P. (2010) Canadian taxonomy: exploring biodiversity, creating opportunity. The Expert Panel on Biodiversity Science. Council of Canadian Academies, Ottawa.
Ota, R.R., Message, H.J., da Graça, W.J. & Pavanelli, C.S. (2015) Neotropical Siluriformes as a model for insights on determining biodiversity of animal groups. PLoS ONE, 10 (7), e0132913.
https://doi.org/10.1371/journal.pone.0132913
Pagès-Escolà, M., Bock, P.E., Gordon, D.P., Wilson, S., Linares, C., Hereu, B. & Costello, M.J. (2020) Progress in the discovery of extant and fossil bryozoans. Marine Ecology Progress Series, 635, 71–79.
https://doi.org/10.3354/meps13201
Pamungkas, J., Glasby, C.J., Read, G.B., Wilson, S.P. & Costello, M.J. (2019) Progress and perspectives in the discovery of polychaete worms (Annelida) of the world. Helgoland Marine Research, 73, 4.
https://doi.org/10.1186/s10152-019-0524-z
Pimm, S.L., Jenkins, C.N., Joppa, L.N., Roberts, D.L. & Russell, G.J. (2010) How many endangered species remain to be discovered in Brazil. Natureza & Conservação, 8 (1), 71–77.
https://doi.org/10.4322/natcon.00801011
Robbins, R.K. & Opler, P.A. (1997) Butterfly diversity and a preliminary comparison with bird and mammal diversity. In: Erwin, T.L., Reaka-Kudla, M.L., Wilson, D.E. & Wilson, E.O. (eds). Biodiversity II. Understanding and Protecting Our Biological Resources. Joseph Henry Press, pp. 69–82.
Roskov, Y., Ower, G., Orrell, T., Nicolson, D., Bailly, N., Kirk ,P.M., Bourgoin, T., DeWalt, R.E., Decock, W., Nieukerken, E. van, Zarucchi, J., Penev, L. (eds.) (2019) Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist. Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.
Sullivan, B.L., Aycrigg, J.L., Barry, J.H., Bonney, R.E., Bruns, N., Cooper, C.B., Damoulas, T., D’Hondt, A.A., Dietterich, T., Farnsworth, A. & Fink, D. (2014) The eBird enterprise: an integrated approach to development and application of citizen science. Biological Conservation, 169, 31–40.
https://doi.org/10.1016/j.biocon.2013.11.003
Taxonomy Decadal Plan Working Group (2018) Discovering Diversity: A decadal plan for taxonomy and biosystematics in Australia and New Zealand 2018–2028. Australian Academy of Science and Royal Society Te Apârangi: Canberra and Wellington., 82 pp.
Tedesco, P.A., Bigorne, R., Bogan, A.E., Giam, X., Jézéquel, C. & Hugueny, B. (2014) Estimating how many undescribed species have gone extinct. Conservation Biology, 28 (5),1360–1370.
https://doi.org/10.1111/cobi.12285
Unger, S., Rollins, M., Tietz, A. & Dumais, H. (2020) iNaturalist as an engaging tool for identifying organisms in outdoor activities. Journal of Biological Education, 1–11.
https://doi.org/10.1080/00219266.2020.1739114
Wei, W., Luo, G., Ran, J. & Li, J. (2020) Zilong: A tool to identify empty images in camera-trap data. Ecological Informatics, 55, 101021.
https://doi.org/10.1016/j.ecoinf.2019.101021
Wilson, S.P. & Costello, M.J. (2005) Predicting future discoveries of European marine species by using a non-homogeneous renewal process. Applied Statistics, 54 (5), 897–918.
https://doi.org/10.1111/j.1467-9876.2005.00513.x
Woodley, M.A., Naish, D. & Shanahan, H.P. (2008) How many extant pinniped species remain to be described? Historical Biology, 20 (4), 225–235.
https://doi.org/10.1080/08912960902830210
Zhang, Z.-Q. (2020) Megataxa for big science questions in taxonomy. Megataxa, 1 (1), 1–3.