Results 181 to 190 of about 3,519 (204)
Some of the next articles are maybe not open access.
Species polyethism in heterospecific groups of Myrmicinae ants
Ethology Ecology and Evolution, 1995We studied species polyethism in heterospecific queenless and queenright groups of ants by associating Manica rubida (olygogynous) individuals with Myrmica rubra (polygynous) and Myrmica ruginodis (monogynous) individuals, respectively. In queenless and queenright groups, Myrmica workers specialized in brood care and guarding the nest while Manica ...
Christine Errard
exaly +2 more sources
A new pheromone in the ant Pheidole pallidula (Myrmicinae) [PDF]
Behavioural Processes, 1991 In the dimorphic species Pheidole pallidula, an ethological factor, present on the VIIth abdominal sternite attracts ants from short distances and enhances the linear speed of those having approached it. Added to poison gland extract, it improves the workers' trail following behaviour.
Detrain, Claire +1 more
openaire +2 more sources
Area marking in the ant Pheidole pallidula (Myrmicinae)
Behavioural Processes, 1996The Mediterranean dimorphic ant Pheidole pallidula has a rapid, short-lasting and species-specific homerange area marking. It is performed by the minor workers, which are stimulated to mark by the major workers. The first few minors reaching a new area move on it very slowly and begin to mark it by depositing spots of their Dufour gland content.
Cammaerts Tricot, Marie-Claire +1 more
openaire +3 more sources
A hitherto unknown ethological factor in the ant Tetramorium impurum (Myrmicinae) [PDF]
Behavioural Processes, 1991 In Tetramorium impurum, an ethological factor can be found on workers' last visible abdominal sternite. For a short time, it attracts ants, increases their linear speed and enhances the efficiency of the trail pheromone. This factor is not colony-specific but may play a role in the foraging and recruiting systems of the species.
Cammaerts Tricot, Marie-Claire +3 more
openaire +2 more sources
Direct homing behaviour in the antTetramorium caespitum(Formicidae, Myrmicinae)
Animal Behaviour, 1998Direct homing refers to the behaviour whereby an ant with food runs in an almost straight line to the nest. We determined whether non-polarized light acts as a directional cue in the direct homing behaviour of the grass ant, Tetramorium caespitum. We carried out tests (1) under a blue sky or in total overcast conditions in the field, and (2) with a ...
, Shen, , Xu, , Hankes
openaire +2 more sources
Taxonomic revision of the Neotropical Myrmicinae ant genus Blepharidatta Wheeler
Zootaxa, 2015We revise the taxonomy of the exclusively Neotropical Myrmicinae ant genus Blepharidatta (Attini), redescribing the known species (B. brasiliensis and B. conops), and describing two new species, B. delabiei sp. n. (Brazil: Bahia) and B. fernandezi sp. n. (Colombia: Amazonas). We also describe worker sting apparatuses, larvae, males, and ergatoid gynes
Brandão, Carlos Roberto F. +2 more
openaire +2 more sources
Identification of trail pheromone of the antTetramorium caespitum L. (Hymenoptera: Myrmicinae)
Journal of Chemical Ecology, 1984The trail pheromone of the antTetramorium caespitum L. is a 70∶30 mixture of 2,5-dimethylpyrazine and 3-ethyl-2, 5-dimethylpyrazine. The average total amount of the two pyrazines present in the poison vesicle was found to be 3.9 ng per ant, of which 2.7 ± 0.4 ng is 2,5-dimethylpyrazine and 1.15 ±0.25 ng is 3-ethyl-2,5-dimethylpyrazine.
A B, Attygalle, E D, Morgan
openaire +2 more sources
Mating behavior in the ant, Myrmecina graminicola (Myrmicinae)
Insectes Sociaux, 2003Sexual behavior of Myrmecina graminicola in laboratory conditions is described. Virgin females, both gynomorphs and intermorphs, exhibit an inconspicuous "sexual calling", apparently depositing a sex pheromone on the substrate close by. The sexual pheromone is produced in the poison gland.
openaire +1 more source