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001-es BibID:	BIBFORM018911
Első szerző:	Espadaler, Xavier
Cím:	Regional trends and preliminary results on the local expansion rate in the invasive garden ant, Lasius neglectus (Hymenoptera, Formicidae) / X. Espadaler, A. Tartally, R. Schultz, B. Seifert, Cs. Nagy
Dátum:	2007
ISSN:	0020-1812
Megjegyzések:	The expansion process of the invasive garden ant, Lasius neglectus in Europe and Asia is described in terms of: a) local expansion through colony growing measured on four supercolonies (Seva, Debrecen, Buda Castle and Budatétény) from two distant and climatically different countries (Spain, Hungary), and b) regional expansion, using data from all published and several new non-native localities. Short, local distance processes (few meters to 89 m year-1), as colony budding, are two to five orders of magnitude smaller than long regional distances (ten km to >1000 km). This suggests direct human intervention in the invasive spread. The regional trend also shows that the invasive garden ant has been quickly and steadily increasing the number of non native localities (77) and countries (14) it has reached during the last 30 years.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Lasius neglectus expansion rate Hungary Spain tramp ants
Megjelenés:	Insectes Sociaux. - 54 : 3 (2007), p. 293-301. -
További szerzők:	Tartally András (1975-) (biológus) Schultz, Roland Seifert, Bernhard Nagy Csaba
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM018918
Első szerző:	Tartally András (biológus)
Cím:	Patterns of host ant use by sympatric populations of Maculinea alcon and M. rebeli in the Carpathian Basin / A. Tartally, D.R. Nash, S. Lengyel, Z. Varga
Dátum:	2008
ISSN:	0020-1812
Megjegyzések:	Maculinea butterflies show social parasitism via obligatory myrmecophily as their larvae are adopted and raised to pupation by Myrmica ants. Suitable hosts differ for different Maculinea species, and host ant specificity can further differ at the population-level. Although early studies suggested single ant species as main hosts for each Maculinea species, it has recently become clear that their host ant specificity is more complex. Maculinea alcon and Maculinea rebeli have variously been separated according to adult and larval morphology, phenology, and their use of different ecosystems, including host plant and host ant species. However, recent genetic evidence has questioned their separation as good species. Here we compare the use of host ants by M. alcon and M. rebeli at the regional scale in NE-Hungary and Transylvania (Romania), where molecular studies have found no species-level separation between the two forms. We opened 778 nests of Myrmica ants and searched for Maculinea specimens (larvae, pupae and exuviae) shortly before imago emergence from the nest in seven M. alcon sites, six M. rebeli- sites and one site where both M. alcon and M. rebeli are syntopic. In all, Maculinea caterpillars were found in the nests of seven different ant species (M. alcon was recorded mainly with Myrmica scabrinodis and occasionally with M. salina and M. vandeli; M. rebeli used mainly M. scabrinodis, M. sabuleti and M. schencki and occasionally M. lonae and M. specioides). Myrmica scabrinodis was found to be a general host of both M. alcon and M. rebeli, which is the first record for a common host ant of these two closely related butterflies within the same region. However there were also differences in host ant use patterns between the sites occupied by the two Maculinea taxa, which reflect differences in Myrmica communities between the two types of habitat. Possible explanations for the similar but not identical host use patterns of M. alcon and M. rebeli, and their relevance for the question of whether they are separate species are discussed.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Myrmica myrmecophily social parasitism host specificity
Megjelenés:	Insectes Sociaux. - 55 : 4 (2008), p. 370-381. -
További szerzők:	Nash, David R. Lengyel Szabolcs (1971-) (biológus) Varga Zoltán (1939-) (professor emeritus, evolúcióbiológus, zoológus)
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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