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A morphometric study of the ant species,Myrmecia dispar (Clark) (Hymenoptera: Formicidæ)
Springer Science and Business Media LLC - Tập 18 - Trang 95-109 - 1971
Myrmecia dispar (Clark) workers and queens show monomorphic polymorphism with limited size variation. Significant differences were found for the mean values of certain characters of workers between some colonies. Frequency histograms of head width against the number of workers in a colony varied considerably, with little or no definite pattern for the smaller colonies and ranging from unimodal to...... hiện toàn bộ
Worker mortality and the evolution of castes in the social wasppolistes exclamans
Springer Science and Business Media LLC - Tập 32 - Trang 275-285 - 1985
Workers of the primitively social wasp,Polistes exclamans, had very short average lifespans, averaging 14 days (S.D.=11, N=497) in 1977, 17 days (S.D.=14, N=503) in 1978 and 14 days (S.D.=10, N=222) in 1979; the oldest worker observed on a natural colony was 102 days old. Colony of origin explained more of the variance in worker longevity than did any other variable. Worker longevity decreased ove...... hiện toàn bộ
Utilizing rabbit immunoglobulin G protein for mark-capture studies on the desert subterranean termite, Heterotermes aureus (Snyder)
Springer Science and Business Media LLC - - 2010
Behavioral mediators of cyclical oligogyny in the Amazonian swarm-founding wasp Asteloeca ujhelyii (Vespidae, Polistinae, Epiponini)
Springer Science and Business Media LLC - - 2004
The frequency of arrhenotoky in the normally thelytokous Apis mellifera capensis worker and the Clone reproductive parasite
Springer Science and Business Media LLC - Tập 62 - Trang 325-333 - 2015
In most honey bees, unfertilized eggs develop into haploid males via arrhenotokous parthenogenesis. The Cape honey bee (Apis mellifera capensis) is different. Although mated queens always produce females sexually, if workers lay unfertilized eggs the eggs develop into diploid females via thelytokous parthenogenesis. Thelytoky in A. m. capensis has given rise to an entirely clonal lineage of reprod...... hiện toàn bộ
Ant chromosomes I. — The genusFormica
Springer Science and Business Media LLC - Tập 23 - Trang 513-524 - 1976
Chromosome numbers of 14 species and mitotic chromosomes of 12 species of the genusFormica are presented. Six species of the subgenusServiformica have 54 chromosomes in the diploid set, one species has 52 chromosomes. Seven species of the subgeneraFormica, Coptoformica, andRaptiformica have 52 chromosomes in the diploid set. The range of lengths of the chromosomes is (for all species) between abou...... hiện toàn bộ
High mating frequency and variation with lineage ratio in dependent-lineage harvester ants
Springer Science and Business Media LLC - Tập 58 - Trang 357-364 - 2011
Explaining the evolution of multiple mating is a challenge because of the associated costs. For social insects, mating frequency may have fitness consequences due to effects on social interactions or genetic diversity within colonies. Here, we investigated the evolution of mating frequency in a social insect species with a unique genetic system that requires multiple mating. In certain populations...... hiện toàn bộ
Le pH intestinal d'un Termite supérieur (Microcerotermes edentatus, Was., amitermitinæ)
Springer Science and Business Media LLC - Tập 14 - Trang 157-160 - 1967
Le pH intestinal deMicrocerotermes edentatus (Amitermitinæ) est très alcalin (>9,6) jusqu'à la première poche de l'intestin postérieur, puis il décroît; dans la seconde poche, il est voisin de la neutralité et devient légèrement acide dans le rectum. Chez les Termites inférieurs, il est au contraire acide dans les régions antérieures et moyennes du tractus. Ces phénomènes peuvent être mis en relat...... hiện toàn bộ
Internidal drifting of workers in the Japanese paper waspPolistes chinensis antennalis (Vespidae; Hymenoptera)
Springer Science and Business Media LLC - Tập 28 - Trang 343-346 - 1981
Some workers of the Japanese paper wasp,Polistes chinensis antennalis Pérez drifted from the maternal nests to other nests. Some of these workers performed tasks for nests they had drifted in. One possible cause of drifting should be errors in the memory of terrains around the nests by these workers.
Intercastes expérimentaux deCalotermes flavicollis Fabr.
Springer Science and Business Media LLC - Tập 17 - Trang 159-175 - 1970
Les corps allates dePeriplaneta americana L. implantés dans des nymphes à destinée imaginale deCalotermes flavicollis Fabr. déterminent la formation d'intercastes soldats sexués. Ces intercastes constituent une série complète d'individus, intermédiaires entre le soldat parfait et l'imago. De remarquables intercastes soldats sexués sont apparus; ces individus allient au type soldat des structures s...... hiện toàn bộ
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