4 Works

Data from: Opposing effects of allogrooming on disease transmission in ant societies

Fabian J. Theis, Line V. Ugelvig, Carsten Marr & Sylvia Cremer
To prevent epidemics, insect societies have evolved collective disease defences that are highly effective at curing exposed individuals and limiting disease transmission to healthy group members. Grooming is an important sanitary behaviour—either performed towards oneself (self-grooming) or towards others (allogrooming)—to remove infectious agents from the body surface of exposed individuals, but at the risk of disease contraction by the groomer. We use garden ants (Lasius neglectus) and the fungal pathogen Metarhizium as a model system...

Data from: Anti-pathogen protection versus survival costs mediated by an ectosymbiont in an ant host

Matthias Konrad, Anna V. Grasse, Simon Tragust & Sylvia Cremer
The fitness effects of symbionts on their hosts can be context-dependent, with usually benign symbionts causing detrimental effects when their hosts are stressed, or typically parasitic symbionts providing protection towards their hosts (e.g. against pathogen infection). Here, we studied the novel association between the invasive garden ant Lasius neglectus and its fungal ectosymbiont Laboulbenia formicarum for potential costs and benefits. We tested ants with different Laboulbenia levels for their survival and immunity under resource limitation...

Data from: Increased grooming after repeated brood care provides sanitary benefits in a clonal ant

Claudia Westhus, Line V. Ugelvig, Edouard Tourdot, Jürgen Heinze, Claudie Doums & Sylvia Cremer
Repeated pathogen exposure is a common threat in colonies of social insects, posing selection pressures on colony members to respond with improved disease-defense performance. We here tested whether experience gained by repeated tending of low-level fungus-exposed (Metarhizium robertsii) larvae may alter the performance of sanitary brood care in the clonal ant, Platythyrea punctata. We trained ants individually over nine consecutive trials to either sham-treated or fungus-exposed larvae. We then compared the larval grooming behavior of...

Data from: Selection history and epistatic interactions impact dynamics of adaptation to novel environmental stresses

Mato Lagator, Nick Colegrave & Paul Neve
In rapidly changing environments, selection history may impact the dynamics of adaptation. Mutations selected in one environment may result in pleiotropic fitness trade-offs in subsequent novel environments, slowing the rates of adaptation. Epistatic interactions between mutations selected in sequential stressful environments may slow or accelerate subsequent rates of adaptation, depending on the nature of that interaction. We explored the dynamics of adaptation during sequential exposure to herbicides with different modes of action in Chlamydomonas reinhardtii....

Registration Year

  • 2014
    4

Resource Types

  • Dataset
    4

Affiliations

  • Institute of Science and Technology Austria
    4
  • Helmholtz Zentrum München
    1
  • University of Warwick
    1
  • University of Regensburg
    1
  • University of Edinburgh
    1
  • University of Bayreuth
    1