Wyniki wyszukiwania

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Humped relationship between herbaceous species richness and biomass reveals a potential for increasing productivity in a temperate desert in Central Asia

100%

Tao Y., Zhou X.-B., Zhang J., Yin B.-F., Wu N., Zhang Y.-M.

Polish Journal of Ecology

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2020

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tom 68

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nr 1

2

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

84%

Czechowski W.

Polish Journal of Ecology

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2007

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tom 55

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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.

3

Around-nest 'cemeteries' of Myrmica schencki Em. [Hymenoptera: Formicidae]: their origin and a possible significance

67%

Czechowski W.

Polish Journal of Ecology

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2008

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tom 56

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nr 2

359-363

Unusual rubbish piles of Myrmica schencki Em. colonies nesting within territories of Formica polyctena Först. are described. The piles tightly surrounded M. schencki nest entrances and consisted mainly of remains of F. polyctena corpses (with a small addition of corpses of other local ant species) previously collected as food by M. schencki foragers in F. polyctena waste disposal zones. This observation shows that, under certain conditions, M. schencki can actually be a specialised myrmecophagous scavenger. The peculiar finding of M. schencki rubbish piles, in connection with other observations of using dead bodies and other remains by ants, suggests that such piles can play some role in interspecific relations in ants. This possibility is considered in the context of the competitive hierarchy of ant species.

4

Combining competition with predation: drastic effect of Lasius fuliginosus (Latr.) on subordinate ant species at the northern limit of its distribution

67%

Marko B., Czechowski W., Radchenko A.

Annales Zoologici

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2013

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tom 63

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nr 1

During long-term field studies on division of space between the territorial ant species Lasius fuliginosus (Latr.) and Formica polyctena Först, in southern Finland a severe decrease in the abundance of subordinate ant species was observed within L. fuliginosus territory. As part of this study we analyze the extent of changes in subordinate ant species assemblage in the light of already documented cases of L. fuliginosus prédation on colonies of subordinate ants. The results showed that L. fuliginosus had a much stronger negative impact on co-occurring subordinate species, than the neighbouring rival F. polyctena. The hypothesis of hunger-induced myrmecophagy in this species is put forward, and is discussed as a possible competitive mechanism by which L. fuliginosus could shape ant assemblages within its territories.

5

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

67%

Czechowski W.

Polish Journal of Ecology

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2006

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tom 54

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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.

Ograniczanie wyników

4 Polish Journal of Ecology

1 Annales Zoologici

4 Czechowski W.

1 Marko B.

1 Radchenko A.

1 Tao Y.

1 Wu N.

1 Yin B.-F.

1 Zhang J.

1 Zhang Y.-M.

1 Zhou X.-B.

1 2020

1 2013

1 2008

1 2007

1 2006

Humped relationship between herbaceous species richness and biomass reveals a potential for increasing productivity in a temperate desert in Central Asia

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

Around-nest 'cemeteries' of Myrmica schencki Em. [Hymenoptera: Formicidae]: their origin and a possible significance

Combining competition with predation: drastic effect of Lasius fuliginosus (Latr.) on subordinate ant species at the northern limit of its distribution

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