Myrmica constricta Karavajev, 1934 – a cryptic sister species of Myrmica hellenica Finzi, 1926 (Hymenoptera: Formicidae)
Keywords:
sibling species, cryptic diversity, numeric morphology-based alpha-taxonomy, discriminant functionsAbstract
Multiple evidence is presented that Myrmica constricta Karavajev, 1934 represents a cryptic sister species (= sibling species) of Myrmica hellenica Finzi, 1926: (a) males differ significantly in length of appendage pilosity, relative scape length and absolute body size; (b) a discriminant analysis (DA) and a leave-one-out-cross-validation discriminant analysis (LOOCV-DA) using 14 morphometric characters separated 90 worker nest samples of both species with a predicted error rate of 1.1 %; (c) as unsupervised method, a principal component analysis of the same data set fully confirmed this clustering; (d) Mantel tests showed a significant effect of the hypothesised con- vs. heterospecificity based on the morphological distance (OMD) as well as on the Bray-Curtis similarity index (BCSI) of worker nest samples, also when controlling for geographical distance (OMD: partial correlation r = 0.3480, p < 0.01; BCSI: r = –0.3254, p < 0.01) and hence provide a further independent argument for heterospecificity. A DA and a LOOCV-DA clearly allocated the types of M. hellenica (with p = 1.000 and p = 0.981, respectively), M. rugulosoides var. striata Finzi, 1926 (in both analyses with p = 1.000) and M. rugulosa var. rugulososcabrinodis Karavajev, 1929 (both with p = 1.000) to the M. hellenica cluster and the types of M. constricta (both with p = 1.000) to the M. constricta cluster. Hence, M. striata and M. rugulososcabrinodis are demonstrated as junior synonyms of M. hellenica. Myrmica constricta is a more western and northern species and goes north to 60°N while the Ponto-Caucasian M. hellenica does not pass 46°N. The species are sympatric in Italy and the Balkans and there are no clear suggestions for hybridisation in this area. A distribution map, comparative morphometric tables and drawings of both species are presented as well as data on colony structure, habitat selection and behaviour of M. constricta.
References
Agosti, D. & C. A. Collingwood (1987): A provisional list of the Balkan ants (Hym., Formicidae) and a key to the worker caste. II. Key to the worker caste, including the European species without the Iberian. – Mitteilungen der Schweizerischen Entomologischen Gesellschaft 60: 261–293.
Arnoldi, K. V. (1934): Studien über die Systematik der Ameisen. VIII. Vorläufige Ergebniss einer biometrischen Untersuchung einiger Myrmica-Arten aus dem europäischen Teile der USSR. – Folia Zoologica et Hydrobiologica Riga 6:151–174.
Arnoldi, K. V. (1970): Obzor muravyev roda Myrmica Evropeyskoy chasti SSSR. – Zoologichesky Zhurnal 49:1829–1844.
Bolton, B. (1995): A New General Catalogue of the Ants of the World. – Harvard University Press, Cambridge, Massachusetts and London: 504 pp.
Bray, J. R. & J. T. Curtis (1957): An ordination of the upland forest communities of Southern Wisconsin. – Ecological Monographs 27: 325–349.
Czechowski, W., A. Radchenko & W. Czechowska (2002): The ants (Hymenoptera, Formicidae) of Poland. – Museum and Institute of Zoology PAS, Warszawa: 200 pp.
Karavajev, V. (1932): Zwei neue Ameisen aus Aserbeidschan (Transkaukasien). – Zoologischer Anzeiger 98: 248–250.
Karavajev, V. (1934): Fauny rodyny Formicidae (murashky) Ukrainy. – Trudy Instytutu Zoolohii ta Biolohii Vseukrains’ka Akademii Nauk, Seriya 1-a. – Pratsi z systematyky ta faunistyky: 1–162.
Lachenbruch, P. & M. Mickey (1968): Estimation of error rates in discriminant analysis. – Technometrics 10: 1–11.
Lesaffre, E., J. L. Willems & A. Albert (1989): Estimation of error rate in multiple group logistic discrimination. The approximate leaving-one-out method. – Communication in Statistics: Theory and Methods 18: 2989–3007.
Mantel, N. (1967): The detection of disease clustering and a generalized regression approach. – Cancer Research 27: 209–220.
Radchenko, A. G. & G. W. Elmes (2004): Taxonomic notes on the scabrinodis-group of Myrmica species (Hymenoptera: Formicidae) living in eastern Europe and western Asia, with a description of a new species from Tien Shan. – Proceedings of the Russian Entomological Society 75(1): 222–233.
Radchenko, A., W. Czechowski & W. Czechowska (1997): The genus Myrmica Latr. (Hymenoptera, Formicidae) in Poland – a survey of species and a key for their identification. – Annales Zoologici 47: 481–500.
Schönwiese, C.-D., T. Staeger & S. Trömel (2004): The hot summer 2003 in Germany. Some preliminary results of a statistical time series analysis. – Meteorologische Zeitschrift 13: 323–327.
Schönwiese, C.-D., T. Staeger & S. Trömel (2005): Klimawandel und Extremereignisse in Deutschland. – Klimastatusbericht 2005 des Deutschen Wetterdienstes, Offenbach: 7–17.
Seifert, B. (1988): A taxonomic revision of the Myrmica species of Europe, Asia Minor and Caucasia. – Abhandlungen und Berichte des Naturkundemuseums Görlitz 62(3): 1–75.
Seifert, B. (1996): Ameisen beobachten, bestimmen. – Naturbuch-Verlag Augsburg: 352 pp.
Seifert, B. (2007): Die Ameisen Mittel- und Nordeuropas. – Lutra-Verlags- und Vertriebsgesellschaft, Tauer: 368 pp.
Seifert, B. (2008): Removal of allometric variance improves species separation in multi-character discriminant functions when species are strongly allometric and exposes diagnostic characters. – Myrmecological News 11: 91–105.
Seifert, B. & L. Pannier (2007): A method for standardised description of soil temperatures in terrestrial ecosystems. – Abhandlungen und Berichte des Naturkundemuseums Görlitz 78: 151–182.
Seifert, B. & R. Schultz (2008): A taxonomic revision of the Formica subpilosa group (Hymenoptera, Formicidae). – Myrmecological News 12: 67–83.
Sokal, R. R. & F. J. Rohlf (1995): – Biometry, 3rd edn. – Freeman, New York: 887 pp.
Welch, B. L. (1947): The generalization of Student’s problem when several different population variances are involved. – Biometrica 34: 28–35.
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