Tribe (biology)

In biology, a tribe is a taxonomic rank above genus, but below family and subfamily.[1][2] It is sometimes subdivided into subtribes. By convention, all taxonomic ranks from genus upwards are capitalized, including both tribe and subtribe.

The hierarchy of biological classification's eight major taxonomic ranks. Intermediate minor rankings are not shown.

In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas). The tribe Hominini is divided into subtribes by some scientists; subtribe Hominina then comprises "humans". The standard ending for the name of a zoological subtribe is "-ina".

In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae".

In bacteriology, the form of tribe names is as in botany, e.g., Pseudomonadeae, based on the genus name Pseudomonas.[3]

Rank recognition

An unfamiliar taxonomic rank cannot necessarily be identified as a tribe merely by the presence of one of the standard suffixes:[note 1]

  • zoological -ini uniquely suffixes the animal tribe, [4]
  • zoological -ina uniquely suffixes the animal subtribe[4]
  • zoological -inae uniquely suffixes the animal subfamily[4]
  • botanical -eae also suffixes class -phyceae, suborder -ineae, family -aceae, and subfamily -oideae (these additional -eae ranks are present in bacteria, plants, algae, and fungi, but not animals)[5][6]

Accordingly, working within animals alone, subfamily -inae, tribe -ini, and subtribe -ina are unique suffixes to their specific taxonomic ranks.[4] At the other extreme, working within algae alone, -eae suffixes class -phyceae, suborder -ineae, family -aceae, subfamily -oideae, and tribe -eae. The longer suffixes themselves suffixed with -eae must first be eliminated before recognizing an unfamiliar -eae designation as belonging to rank tribe.[5][6]

See also

Notes
  1. Italics in section "Rank recognition" indicate lexical rather than taxonomic distinctions.

References
  1. McNeill, J.; Barrie, F.R.; Buck, W.R.; Demoulin, V.; Greuter, W.; Hawksworth, D.L.; Herendeen, P.S.; Knapp, S.; Marhold, K.; Prado, J.; Prud'homme Van Reine, W.F.; Smith, G.F.; Wiersema, J.H.; Turland, N.J. (2012), International Code of Nomenclature for algae, fungi, and plants (Melbourne Code) adopted by the Eighteenth International Botanical Congress Melbourne, Australia, July 2011, vol. Regnum Vegetabile 154, A.R.G. Gantner Verlag KG, ISBN 978-3-87429-425-6 Article 4
  2. International Commission on Zoological Nomenclature (1999). International Code of Zoological Nomenclature (Fourth ed.). International Trust for Zoological Nomenclature, XXIX. pp. 306. ISBN 9780853010067.
  3. "Chapter 3: Rules of Nomenclature with Recommendations", International Code of Nomenclature of Bacteria: Bacteriological Code, 1990 Revision, ASM Press, 1992
  4. Turland, N. J.; Wiersema, J. H.; Barrie, F.R.; Greuter, W. (2011), Best practice in the use of the scientific names of animals: Support for editors of technical journals. Bulletin of Zoological Nomenclature 68(4): 313–322. Article 29
  5. Turland, N. J.; Wiersema, J. H.; Barrie, F.R.; Greuter, W.; Hawksworth, D.L.; Herendeen, P.S.; Knapp, S.; Kusber, W.-H.; Li, D.-Z.; Marhold, K.; May, T. W.; McNeill, J.; Monro, A. M.; Prado, J.; Price, M. J.; Smith, G. F. (2017), International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017, Regnum Vegetabile, vol. Regnum Vegetabile 159, Glashütten: Koeltz Botanical Books, doi:10.12705/Code.2018, ISBN 9783946583165, S2CID 83550499 Article 16
  6. Turland, N. J.; Wiersema, J. H.; Barrie, F.R.; Greuter, W.; Hawksworth, D.L.; Herendeen, P.S.; Knapp, S.; Kusber, W.-H.; Li, D.-Z.; Marhold, K.; May, T. W.; McNeill, J.; Monro, A. M.; Prado, J.; Price, M. J.; Smith, G. F. (2017), International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017, Regnum Vegetabile, vol. Regnum Vegetabile 159, Glashütten: Koeltz Botanical Books, doi:10.12705/Code.2018, ISBN 9783946583165, S2CID 83550499 Article 19
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