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1

Indirect effects in boreal ant assemblages: territorial wood ants protect potential slaves against enslaving ants

100%
Vaananen S., Vepsalainen K., Savolainen R.
Annales Zoologici
|
2010
|
tom 60
|
nr 1
The facultative enslaver Formica sanguinea Latr. uses as slaves F. fusca L. and other species of the subgenus Serviformica For. Earlier observations have shown or suggested that strong territorial wood-ant species, by defending their own territories, interfere with raids by F. sanguinea such that colonies of potential slave species gain protection against raids. At the population level, such protection should be visible as higher nest densities of F. fusca within than outside wood-ant territories, when both areas are within raiding distance of F. sanguinea. Here we tested this hypothesis by mapping nest densities of F. fusca. As expected, nest densities of F. fusca were higher within than outside wood-ant territories. In contrast, nest densities of two aggressive species, Lasius platythorax Seifert and L. niger (L.), unsuitable as slaves, were as expected lower within than outside wood-ant territories. Our results concur with earlier studies based on pitfall trapping, baiting experiments, and in situ observations on raids. The results also show that the positive impact of indirect protection provided by wood ants against raids may outweigh the direct negative impact of wood ants on F. fusca nesting within their territories. We discuss the geographic and habitat cooccurrences of wood ants, enslavers and potential slave species, and coverage of efficient indirect protection of potential slaves against raids.
2
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Mechowce (Acari, Oribatei) z gniazd mrówek Formica rufa (s.1) z terenów Bieszczadzkiego Parku Narodowego

94%
Sell D.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
1990
|
tom 373
Автор исследовал фауну клещей Oribatidae ( Acari, Oribatei) собранных с муравейников Formica rufa ( Hymeпорtera, Formicidae ). Исследования охватывали десять муравейников, в которых было обнаружено 84 вида клещей Oribatidae (Таблица 1). Двенадцать из них принадлежало к новым видам в польской фауне ( Liacarus brevillamellatus, Oppia trichomirovae, О. media, O. paradecipiens, O. minuta, O. ctenifera, Peloribates europaeus, Diapterobates oblongus, Adoribatella punctata, Parachipteria patavinus, P. nivialis, Pergalumna myrmophila, а семь видов были выявлены исключительно в Польше (Camisia lapponica, Ceratopia quadridentata, Punctoribates latilobatus, Eupelops torulosus, Ophidiotrichus connexus, Tectoribates ornatus, Pergalumna formicaria).
3

Gdzie mrówki zimują?

84%
Michlewicz M.
Salamandra:Magazyn Przyrodniczy
|
2017
|
nr 2
4

Miedzygatunkowe przejmowanie gniazd u rudych mrowek lesnych [Hymenoptera, Formicidae]

84%
Czechowski W.
Przegląd Zoologiczny
|
1994
|
tom 38
|
nr 3-4
283-288
5

Sposoby osiagania sukcesu rozrodczego przez krolowe rudych mrowek lesnych [Hymenoptera, Formicidae]

84%
Czechowski W., Pisarski R.
Przegląd Zoologiczny
|
1994
|
tom 38
|
nr 1-2
79-85
6

Ways to reproductive success of wood ant queens

84%
Pisarski B., Czechowski W.
Memorabilia Zoologica
|
1994
|
tom 48
181-186
7

Effects of urban pressure on colonies of Formica rufa group (Hymenoptera, Formicidae) in the town of Espoo (Finland)

84%
Wuorenrinne H.
Annales Zoologici
|
1988-1989
|
tom 42
|
nr 13-17
Quantitative changes in red wood ant populations affected by urban pressure were studied at the town of Espoo (Southern Finland) in 1974-1980. Torossian's (an average mound volume and a total mound volume per ha) and Francour's indices (a number of inhabited, new established and abandoned nests during a year) were analyzed. Differences in the responsivity to anthropogenization of particular species (Formica pratensis Retz., F. rufa L., F. polyctena Foerst., and F. aquilonia Yarb.) were determined.
8

Eksperymentalna kolonizacja mrowek w reglu gornym Masywu Jaworzyny w Gorczanskim Parku Narodowym

84%
Czechowski W.
Parki Narodowe i Rezerwaty Przyrody
|
1992
|
tom 11
|
nr 4
51-57
9

Plezjobioza Formica fusca L. z rudymi mrowkami lesnymi [Hymenoptera, Formicidae]

84%
Czechowski W., Vepsalainen K.
Przegląd Zoologiczny
|
1999
|
tom 43
|
nr 3-4
215-218
10

Number of sawfly [Hymenoptera, Diprioninae] cocoons in forest litter at selected distances from anthills

84%
Korczynski I., Skrzypczyk-Adamska B.
Forestry
|
2001
|
tom 04
11

Different attack modes of Formica species in interspecific one-on-one combats with other ants [Hymenoptera: Formicidae]

84%
Heuts B. A., Cornelissen P., Lambrechts D. Y. M.
Annales Zoologici
|
2003
|
tom 53
|
nr 2
The separation of the wood ant sibling species Formica rufa and F. polyctera has been questioned recently on partly morphological grounds. We show difference in their attacks on ten alien, mainly sympatric, ant species. F. rufa significantly more often inflicted pure proximal in proportion to distal lesions than F. polyctena. They did not significantly differ in total number, laterality, or anterior/posterior position of inflicted lesions and did not injure some victim species significantly more proximally than others. Serviformica and Raptiformica species inflicted mainly distal lesions in contrast to the mainly proximally attacking Coptoformica and F. truncorum of the wood ant subgenus (Formica s.s.). Formica exsecta amputated significantly more heads relative to other body parts than eight other Formica species when all fought individually with ten ant species. F. exsecta decapitated Formica species significantly more often than non -Formica species (enemy specification) although this discrimination was not significantly stronger than in the eight other amputating Formica species (enemy specification "in the strict sense" was not demonstrated). Similar interspecific decapitations reported from natural F. exsecta colonies support the relevancy of one-on-one combats in the laboratory to the natural situation. Phylogenetic position and degree of polygyny of Formica species were not clearly correlated with interspecific proximal-attack propensity.
12

Formica rufa L. protects indirectly F.fusca L. against raids of F.sanguinea Latr. [Hymenoptera: Formicidae]

84%
Czechowski W., Vepsalainen K.
Annales Zoologici
|
2001
|
tom 51
|
nr 3
By protecting their territory against all territorial ants, Formica rufa L. indirectly protected F. fusca L., nesting within their territory, against F. sanguinea Latr. raids. The permanent costs to F. fusca caused by highly aggressive F. rufa within their territories were outweighed by the benefits obtained by F. rufa’s protection against periodic raids of F. sanguinea. We interprete our findings in the light of the hierarchy competitive framework as follows.
13

Competition between Formica cinerea Mayr [Hymenoptera: Formicidae] and co-occurring ant species, with special reference to Formica rufa L.: direct and indirect interferences

84%
Czechowski W., Marko B.
Polish Journal of Ecology
|
2005
|
tom 53
|
nr 4
Formica cinerea Mayr is supposed to be the top dominant of ant communities in successional sandy habitats, whereas wood ant species, e.g. F. rufa L., play this role in forests. These species often co-occur in overlapping habitats. The aim of the study was to recognize competitive interrelations between them in the broad ecological aspect of relations with local subordinate species, including F. fusca L., Tetramorium caespitum (L.) and Myrmica schencki Viereck. Study area was a sand dune slope surrounded by pine forest at Tvärminne, S Finland, where F. cinerea nest complexes were encircled by F. rufa colonies. Baiting experiments, preceded by ‘nudum’ observations were carried out. The presumption that F. rufa would influence the activity of F. cinerea was not supported by the results. No-ant zones separated the territories of these two species almost through the total length of the boundary of the F. cinerea range. The outcome of interspecific interactions within the multi-species community studied corresponded with the species competitive status generally. The results are discussed in the context of interspecific competition hierarchy in ants and succession of ant communities.
14

II Konferencja Naukowa "Mrówki w ochronie lasu" Prószków, 9-10 V 1986

83%
Czechowski W.
Wiadomości Entomologiczne
|
1988-1989
|
tom 08
|
nr 3-4
15

Awifauna Góry Chełmowej (Świętokrzyski Park Narodowy)

83%
Krysztofik E., Pomarnackiej E.
Wszechświat
|
1957
|
nr 02
16

Mixed colonies of red wood ants [Hymenoptera, Formicidae]

67%
Czechowski W.
Annales Zoologici
|
1993
|
tom 44
|
nr 01-07
27-41
Two cases of the existence of permanently mixed colonies of Formica polyctena FOERST. + F. rufa L. were discovered and blometrically proved. They came into being thanks to secondary allometrosis. The data are from the Gorce Mts. (the Western Carpathians), collected there from 1987 to 1990.
17

Replacement of species in red wood ant colonies [Hymenoptera, Formicidae]

67%
Czechowski W.
Annales Zoologici
|
1993
|
tom 44
|
nr 01-07
17-26
There are reported cases of spontaneous changes in species affiliation of colonies within the Formica rufa group (F. rufa L.→ F. polyctena FOERST.) resulting from the adoption of foreign queens by orphaned workers. Thus it is shown that mixed colonies of these species can function temporarily, and this widens the knowledge about the ways of colony founding by their queens. The data were collected in the Gorce Mts. (the Western Carpathians) from 1985 to 1990.
18

Do permanently mixed colonies of wood ants (Hymenoptera: Formicidae) really exist?

67%
Czechowski W., Radchenko A.
Annales Zoologici
|
2006
|
tom 56
|
nr 4
We describe the composition of two colonies of wood ants (FM-1 and FM-2) from southern Finland, identified on the basis of morphological investigations of workers (for FM-1, also of alate gynes and males) as mixed colonies comprising individuals with phenotypes typical of Formica aquilonia Yarr., F. polyctena Först, and F. rufa L. The prevailing species (phenotypes) were F. polyctena in FM-1, and F. rufa in FM-2. Colony FM-1 was observed every year in the period 1996-2006, almost from the moment it was formed. A first tentative investigation in 1999 revealed that it was already a mixed one and was probably also polygynous. Systematic follow-up investigations from 2002 to 2006 demonstrated relative stability of the proportions of individual species (phenotypes). A possible origin of this permanently mixed colony is postulated and discussed.
19

Hybrids in red wood ants [Hymenoptera,Formicidae]

67%
Czechowski W.
Annales Zoologici
|
1993
|
tom 44
|
nr 01-07
43-54
Among samples from 42 colonies of red wood ants that were analysed biometrically 2 were found to represent interspecific hybrids of Formica polyctena FOERST. x F. rufa L. 3 phenotypes (polyctena-like, intermediate, rufa-like) were distinguished in both colonies; their quantitative proportion was almost identical, with predominance of the intermediate forms. The studies were conducted in the Gorce Mts. (the Western Carpathians) from 1985 to 1990.
20
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Wplyw mrowek na jesienna entomofaune sciolki boru sosnowego w okresie gradacji borecznikow

67%
Ziomek K.
Sylwan
|
2001
|
tom 145
|
nr 11
31-38
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