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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:	BIBFORM065872
Első szerző:	Tartally András (biológus)
Cím:	Collapse of the invasive garden ant, Lasius neglectus, populations in four European countries / András Tartally, Vera Antonova, Xavier Espadaler, Sándor Csősz, Wojciech Czechowski
Dátum:	2016
ISSN:	1387-3547 1573-1464
Megjegyzések:	The invasive garden ant Lasius neglectus (Hymenoptera: Formicidae) has been spreading rapidly in Europe ever since the 1990s. This ant established enormous supercolonies in many European cities and poses a serious threat to the local native faunas. The spread of this species has not slowed down in the last decades, but in the recent years the sizes of the known L. neglectus populations have generally been declining or have stagnated. For 29 supercolonies checked in four countries, in 10 cases L. neglectus individuals have not been found on the former area of their occurrence. On the other hand, only two supercolonies have expanded. In this paper, we summarize these monitoring data collected by the personal independent, diligent monitoring activities of myrmecologists on populations of the invasive garden ant in Bulgaria, Hungary, Poland and Spain. The reasons for this collapse are thought to be: (1) depletion of the local resources, (2) gradation of pathogens and (social)parasites, (3) climatic factors, (4) intra-population mechanisms, (5) confrontation with highly competitive native species, and (6) lack of suitable nesting microhabitats. As similar phenomena were observed in the cases of supercolonies of other invasive ant species, it seems that they decline more generally than has been thought.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Polygyny Supercolony Population dynamic Pest species Declining Disappearance
Megjelenés:	Biological Invasions. - 18 : 11 (2016), p. 3127-3131. -
További szerzők:	Antonova, Vera Espadaler, Xavier Csősz Sándor (1971-) (Biológus) Czechowski, Wojciech
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM060743
Első szerző:	Tartally András (biológus)
Cím:	The joint introduction of Platyarthrus schoblii (Isopoda: Oniscidea) and Lasius neglectus (Hymenoptera: Formicidae) into Hungary / Tartally András, Hornung Elisabeth, Espadaler Xavier
Dátum:	2004
ISSN:	1025-6164
Megjegyzések:	The invasive garden ant Lasius neglectus VAN LOON, BOOMSMA & ANDRÁSFALVY, 1990 was found anddescribed from Budapest, Hungary. Since then, 16 colonies of the species were located in the area. Morelocalities could probably be detected by systematic screening throughout the country. The majority of thecolonies can be found in Budapest and only a few sites are known outside the capital city (in the BotanicalGarden of Debrecen and in Érd and Tahi; the latter two are situated close to Budapest).It is known that several arthropod groups have representatives of a myrmecophilous character that are livingin ant nests on a voluntary or obligatory basis (e.g., beetles, springtails, mites, crickets, and woodlice).No such phenomenon was published in relation to invertebrates accompanying L. neglectus before. In2001, we detected the first commensalist isopod in a colony in Budatétény. We identified the crustaceanarthropod as Platyarthrus schoblii BUDDE-LUND, 1885 which is a new species in Hungary. It was knownonly in the Mediterranean region before. After a systematic search by hand sorting, we were able to provethe presence of this isopod species in 60 % of the studied L. neglectus populations.The other well-established representative of the myrmecophilous genus Platyarthrus in Hungary is P.hoffmannseggii BRANDT, 1833, which was not found to co-occur with L. neglectus. Similarly, P. schobliihas not yet been found with other ant species. Nevertheless we presume cross-adoption in each case as ithappened, e.g., in Spain between the native P. schoblii and the introduced and invasive ant Linepithemahumile (MAYR, 1868). The repeated co-occurrence of P. schoblii and L. neglectus could underline thehypothesis concerning the anthropogenic distribution of both species by potted ornamental plants.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Lasius neglectus Platyarthrus schoblii exotic species establishment invasive tramp ant Hungary
Megjelenés:	Myrmecologische Nachrichten. - 6 (2004), p. 61-66. -
További szerzők:	Hornung Erzsébet Espadaler, Xavier
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM063943
Első szerző:	Tragust, Simon
Cím:	Histopathology of Laboulbeniales (Ascomycota: Laboulbeniales): ectoparasitic fungi on ants (Hymenoptera: Formicidae) / Simon Tragust, András Tartally, Xavier Espadaler, Johan Billen
Dátum:	2016
ISSN:	1994-4136 1997-3500
Megjegyzések:	Among the many associations between fungi and ants, the associations involving the ectoparasitic fungi Laboulbeniales(Ascomycota: Laboulbeniales) have remained largely enigmatic even today. However, for two of the six ant-parasitizingLaboulbeniales, it has been found that parasitism is correlated with diminished survival of their hosts, especially underresource limitation. In the present study, we investigate whether these fitness impacts are linked to an intrusion into thebody cavity by the ectoparasites. Light, scanning and transmission electron microscopy were used to study the mode ofattachment and the presence of penetrating structures in four of the six currently recognized ant-parasitizing Laboulbeniales.No indication of penetration was found, suggesting that the reported fitness impacts are not linked to an intrusioninto the body cavity. A better understanding of host-parasite interactions involving Laboulbeniales on ant hosts isnecessary, considering that Laboulbeniales parasitizing ants impact their hosts' fitness and that monitoring studies haverevealed that an infection with Laboulbeniales is much more common in European ants than previously thought.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Myrmecological News. - 23 (2016), p. 81-89. -
További szerzők:	Tartally András (1975-) (biológus) Espadaler, Xavier Billen, Johan
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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