Results 11 to 20 of about 775,689 (124)
Plastic brain structure changes associated with the division of labor and aging in termites. [PDF]
Dev Growth Differ, 2023 Termites restructure their nervous systems to perform necessary tasks as they undergo caste differentiation, and they also show flexible changes in brain morphology even after the final molt. Abstract Division of labor is a prominent feature of social insect societies, where different castes engage in different specialized tasks.
Ishibashi T +9 more
europepmc +2 more sources
Courtship with two spoons-Anatomy and presumed function of the bizarre antennae of Cardiocondyla zoserka ant males. [PDF]
Ecol Evol, 2021 Winged males of the ant Cardiocondyla zoserka have evolved a bizarre secondary sexual trait: uniquely shaped antennae with a spoon‐like tips that show heavily sculptured ventral surfaces with numerous invaginations. We here report on the courtship behavior of C.
Heinze J +5 more
europepmc +2 more sources
Assisted dispersal and reproductive success in an ant species with matchmaking. [PDF]
Ecol Evol, 2022 The paternity analyses of workers produced by transported female sexuals in a matchmaking ant species show that females can mate multiply. However, if polyandry can be beneficial, it appears, here, to be correlated with a decrease in colony growth rate.
Vidal M, Heinze J.
europepmc +2 more sources
Endosymbionts mediate the effects of antibiotic exposure in the tramp ant Cardiocondyla obscurior
Ecological Entomology, Volume 47, Issue 2, Page 170-180, April 2022., 2022 Treatment with the antibiotic rifampicin decreases endosymbiont densities and has strong negative effects on queen fecundity and colony productivity in a tramp ant. Viability of sperm from males produced in rifampicin‐treated colonies is significantly reduced, pointing towards a trans‐generational effect of antibiotics on male ant fitness.
Çiğdem Ün +4 more
wiley +1 more source
Apparent task specialization among cofounding ant queens
, 2021 Insect Science, Volume 28, Issue 1, Page 278-280, February 2021.
Jürgen Heinze, Sarah Koller
wiley +1 more source
The Ant Cardiocondyla elegans as Host of the Enigmatic Endoparasitic Fungus Myrmicinosporidium durum
Psyche: A Journal of Entomology, Volume 2015, Issue 1, 2015., 2015 Data on host species and the distribution of the endoparasitic fungus Myrmicinosporidium durum increased continuously in recent decades. Here, we add the ant Cardiocondyla elegans as new host species. Colonies of the monogynous species were found infested in the region of Languedoc‐Roussillon (South France).
Julia Giehr +3 more
wiley +1 more source
Psyche: A Journal of Entomology, Volume 2012, Issue 1, 2012., 2012 The ant genus Sphinctomyrmex has been represented in the Neotropical Region until now by a single species, S. stali, known only from sparse localities in southeastern Brazil. Two new neotropical species are herein described, S. marcoyi sp. n. and S. schoerederi sp. n. from workers collected in the Brazilian Amazon and Atlantic Forest, respectively. New
Rodrigo M. Feitosa +4 more
wiley +1 more source
Entomopathogens Isolated from Invasive Ants and Tests of Their Pathogenicity
Psyche: A Journal of Entomology, Volume 2012, Issue 1, 2012., 2012 Some ant species cause severe ecological and health impact in urban areas. Many attempts have been tested to control such species, although they do not always succeed. Biological control is an alternative to chemical control and has gained great prominence in research, and fungi and nematodes are among the successful organisms controlling insects. This
Maria Fernanda Miori de Zarzuela +4 more
wiley +1 more source
Queen Size Variation in the Ponerine Ant Ponera coarctata (Hymenoptera: Formicidae)
Psyche: A Journal of Entomology, Volume 102, Issue 1-2, Page 1-12, 1995., 1995 Queens of Ponera coarctata show a pronounced variation in size as measured by ommatidia number and Weber′s alitrunk length. Isometric size variation and the normal distribution of size categories indicate that, despite these differences, only one queen morph exists.
J. Liebig, J. Heinze, B. Hölldobler
wiley +1 more source
Ergatoid queen development in the ant Myrmecina nipponica: modular and heterochronic regulation of caste differentiation. [PDF]
Proc Biol Sci, 2010 Caste polyphenism in social insects provides us with excellent opportunities to examine the plasticity and robustness underlying developmental pathways.
Miyazaki S +5 more
europepmc +2 more sources