Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 8

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  social parasitism
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Do Polyergus rufescens [Latr.] and Formica sanguinea Latr. [Hymenoptera: Formicidae] share resources of slave species with each other?

100%
Czechowski W.
Polish Journal of Ecology
|
2007
|
tom 55
|
nr 1
The paper discusses the directionality of slave raids of a colony of Polyergus rufescens (Latr.), an obligate European slavemaking ant species, in the presence of colonies of Formica sanguinea Latr., a facultative slavemaker, in the neighbourhood. Both these social parasites use the same host species. The results strongly suggest that P. rufescens avoided raiding the area occupied by its competitor. An explanation is offered based on a demonstrated at the same time tendency of this species to avoid dangerous places.
2

Plesiobiosis between Formica fusca L. and Formica aquilonia Yarr. [Hymenoptera, Formicidae]

100%
Czechowski W., Vepsalainen K.
Annales Zoologici
|
1999-2000
|
tom 49
|
nr 1-2
3

Mixed colony of Formica pratensis Retz. plus Formica cinerea Mayr plus Formica sanguinea Latr. [Hymenoptera: Formicidae] and its presumed origin

100%
Czechowski W.
Annales Zoologici
|
2001
|
tom 51
|
nr 2
A case of a queenright colony of Formica pratensis Retz. mixed with the workers of F. cinerea Mayr and some workers of F. sanguinea Latr. is described. The colony characterized by this composition has evolved from a pure F. cinerea colony that had been raided by F. sanguinea two years earlier. Another conflict with the same F. sangui nea revealed the composition of this colony. The presumed circumstances of the origin of the specific mixed colony are discussed in this paper.
4

Butterfly-ant relationships: host ant specificity of Phengaris 'rebeli' Hirschke [Lepidoptera: Lycaenidae] in Pieniny Mts [Southern Poland]

80%
Sielezniew M., Dziekanska I.
Polish Journal of Ecology
|
2009
|
tom 57
|
nr 2
403-409
Phengaris ‘rebeli’ Hirschke is a globally threatened obligatorily myrmecophilous and xerothermophilous butterfly. Caterpillars are initially endophytic and feed in flowerheads of Gentiana cruciata L. but they complete their development as social parasites of Myrmica Latr. ants. Relationships with hosts are specific and show geographical variation in Europe. Knowledge on them is vital for effective conservation. In Poland ‘P. rebeli’ was recorded from a dozen or so sites in the SE part of the country and from one locality in the Pieniny Mts. – a low calcareous mountain range on the Polish-Slovak border that constitutes a distinct geobotanical unit with specific climate and diversity of habitats. Present studies aimed to identify hostants of the butterfly in the Pieniny Mts.A total number of 30 Myrmica colonies were searched in 2008 near larval food plants bearing eggs of ‘P. rebeli’ in the previous season. We observed caterpillars and pupae of the butterfly exclusively in nests of M. schencki Em., i.e. 4 of 4 of them were infested. However, we did not find prematures of P. ‘rebeli’ with M. sabuleti Mein., M. rugulosa (Nyl.) and M. rubra (L.) which were also present in the turf. This makes the Pieniny population completely distinct from previously studied populations in SE Poland and similar to those known from Lithuania, France and Spain. It is probably related to the variation in chemical mimicry of P. ‘rebeli’ caterpillars. Our finding contributes to knowledge on the pattern of host-ant use of the butterfly in Europe and is also important for conservation on a local scale.
5

Myrmica karavajevi (Arn.) (Hymenoptera, Formicidae) in Poland: a species not as rare as it is thought to be?

80%
Witek M., Babik H., Czechowski W., Czechowska W.
Fragmenta Faunistica
|
2013
|
tom 56
|
nr 1
The ant Myrmica karavajevi is an extremely rarely found and poorly known workerless social parasite of ants of the Myrmica scabrinodis species group. Hereafter detailed information of its previously published findings from four geographical regions in Poland (Bieszczady Mts, Pieniny Mts, Pomeranian Lakeland and Mazovian Lowland) as well as data on three new records from the Roztocze upland, Lubelska upland and Krakowsko-Częstochowska Upland is given. The latter suggests higher than hitherto suspected degree of host species infestation by M. karavajevi. use of M. rugulosa as a host by M. karavajevi is also discussed.
6

Host ant use by Phengaris (= Maculinea) alcon (Lepidoptera, Lycaenidae) in Poland

80%
Sielezniew M., Stankiewicz-Fiedurek A. M.
Polish Journal of Entomology
|
2009
|
tom 78
|
nr 4
Phengaris alcon is a socially parasitic butterfly which is endangered or vulnerable in many European countries. Host-ant specificity of the butterfly was studied at nine sites throughout Poland. Except for one locality, we found P. alcon full-grown larvae and pupae exclusively in M. scabrinodis nests, which confirms that the presence of this ant species is vital for all populations to thrive. Therefore we can exclude with high probability the existence of geographical variation of the specificity of butterfly-ant interactions observed in Western Europe. The infestation rate was 32% and the mean number of P. alcon prematures was 3.4. On the site in the Polesie region we found 53 larvae in one colony, but in all other cases we observed up to 10 individuals. M. vandeli, which is known as an alternative host for the ‘scabrinodis’ race of P. alcon, was observed only in the Swietokrzyskie region and it was parasitised with a similar rate to the primary host. M. scabrinodis was also the most common ant on the site almost everywhere. Only in the Biebrza National Park was the habitat of the butterfly dominated by M. gallienii. The very rarely observed event of a nest infested simultaneously by P. alcon and P. teleius was recorded in the Upper Silesia. Our findings are important for the practical conservation of P. alcon in Poland, especially as we noted the deterioration of habitats of the butterfly on a local scale.
7

Emancipation of slaves in Formica sanguinea Latr. colonies [Hymenoptera, Formicidae]

80%
Czechowski W.
Annales Zoologici
|
1994
|
tom 45
Formica sanguined Latr. occasionally takes wood ants as its slaves. Eleven nests of the former were experimentally provided with various amounts (10,000-250,000) of pupae of F. polyctena Foerst. or F. rufa L., and thus, mixed colonies with different proportions of slaves (29-96%) were obtained. The slaves destroyed the F. sanguinea colonies by eliminating their brood andqueen(s) (with no aggressiveness towards adult workers). The following year, even though F. sanguinea workers were still present, the slaves adopted young queens of their own species. Before their complete emancipation, the slaves fought on the side of the slavers during conflicts with conspecific ants, even against their former nestmates. Emancipation restored mutual comity between the ex-slaves and the unenslaved F. polyctena. At the same time, the ex-slavers lost their aggressiveness towards alien F. polyctena (but not vice versa). The mixed colonies were raided by foreign F. sanguinea. The studies were carried out in the Gorce Mts (the Western Carpathians) from 1987 to 1991.
8

The route of Formica polyctena Forst. as a factor promoting emancipation of Formica fusca L. slaves from colonies of Polyergus rufescens [Latr.] [Hymenoptera: Formicidae]

80%
Czechowski W.
Polish Journal of Ecology
|
2006
|
tom 54
|
nr 1
Formica fusca L. slaves from colonies of Polyergus rufescens (Latr.) tend to establish small homospecific satellite nests close to a main nest. P. rufescens maintains the integrity of a mixed colony by means of peculiar integration raids (Czechowski 2005). The present paper describes the history of a group of such satellite nests, temporarily separated from the main nest by a foraging route of Formica polyctena Först. impassable to P. rufescens. The ex-slaves had managed to adopt F. fusca gynes and raised some homospecific worker pupae before the F. polyctena route disappeared and P. rufescens started to raid their nests. During the raids, the mutual attitude of the slave-makers and the ex-slaves quickly evolved from hostility to friendly relations.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.