@article{AntonRoessler2021,
  author    = {Anton, Sylvia and R{\"o}ssler, Wolfgang},
  title     = {Plasticity and modulation of olfactory circuits in insects},
  series = {Cell and Tissue Research},
  volume    = {383},
  journal   = {Cell and Tissue Research},
  issn      = {0302-766X},
  doi       = {10.1007/s00441-020-03329-z},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-235820},
  pages     = {149-164},
  year      = {2021},
  abstract  = {Olfactory circuits change structurally and physiologically during development and adult life. This allows insects to respond to olfactory cues in an appropriate and adaptive way according to their physiological and behavioral state, and to adapt to their specific abiotic and biotic natural environment. We highlight here findings on olfactory plasticity and modulation in various model and non-model insects with an emphasis on moths and social Hymenoptera. Different categories of plasticity occur in the olfactory systems of insects. One type relates to the reproductive or feeding state, as well as to adult age. Another type of plasticity is context-dependent and includes influences of the immediate sensory and abiotic environment, but also environmental conditions during postembryonic development, periods of adult behavioral maturation, and short- and long-term sensory experience. Finally, plasticity in olfactory circuits is linked to associative learning and memory formation. The vast majority of the available literature summarized here deals with plasticity in primary and secondary olfactory brain centers, but also peripheral modulation is treated. The described molecular, physiological, and structural neuronal changes occur under the influence of neuromodulators such as biogenic amines, neuropeptides, and hormones, but the mechanisms through which they act are only beginning to be analyzed.},
  language  = {en}
}
@article{GrobHeinigGruebeletal.2021,
  author    = {Grob, Robin and Heinig, Niklas and Gr{\"u}bel, Kornelia and R{\"o}ssler, Wolfgang and Fleischmann, Pauline N.},
  title     = {Sex-specific and caste-specific brain adaptations related to spatial orientation in Cataglyphis ants},
  series = {Journal of Comparative Neurology},
  volume    = {529},
  journal   = {Journal of Comparative Neurology},
  number    = {18},
  doi       = {10.1002/cne.25221},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257299},
  pages     = {3882-3892},
  year      = {2021},
  abstract  = {Cataglyphis desert ants are charismatic central place foragers. After long-ranging foraging trips, individual workers navigate back to their nest relying mostly on visual cues. The reproductive caste faces other orientation challenges, i.e. mate finding and colony foundation. Here we compare brain structures involved in spatial orientation of Cataglyphis nodus males, gynes, and foragers by quantifying relative neuropil volumes associated with two visual pathways, and numbers and volumes of antennal lobe (AL) olfactory glomeruli. Furthermore, we determined absolute numbers of synaptic complexes in visual and olfactory regions of the mushroom bodies (MB) and a major relay station of the sky-compass pathway to the central complex (CX). Both female castes possess enlarged brain centers for sensory integration, learning, and memory, reflected in voluminous MBs containing about twice the numbers of synaptic complexes compared with males. Overall, male brains are smaller compared with both female castes, but the relative volumes of the optic lobes and CX are enlarged indicating the importance of visual guidance during innate behaviors. Male ALs contain greatly enlarged glomeruli, presumably involved in sex-pheromone detection. Adaptations at both the neuropil and synaptic levels clearly reflect differences in sex-specific and caste-specific demands for sensory processing and behavioral plasticity underlying spatial orientation.},
  language  = {en}
}