Skip to Main content Skip to Navigation
Theses

Approche théorique et expérimentale du choix de source et de la gestion collective des ressources alimentaires chez la fourmi

Olivier Bles 1
1 DEPE-IPHC - Département Ecologie, Physiologie et Ethologie
IPHC - Institut Pluridisciplinaire Hubert Curien
Abstract : During my PhD I have developed theoretical (simulation) and experimental (tracking) tools to investigate the mechanisms underlying the collective food source choice as well as collective food management at the intranidal level in ants. A first part of my thesis reveals the influence of the physical (and in particular the angularity and the topography) properties of the trail to the food source on the ant behavior at the individual level and its resulting food source choice/exploitation at the collective level. The second part of my thesis is dedicated to the dynamics of the food flow entering the nest, its regulation and the food dissemination/accumulation processes at the intranidal level through trophallaxis (mouth-to-mouth fluid exchange). The networks of food distributions and exchanges were built for two ant species in various experimental conditions. Interestingly, all theses networks show several similar properties, such as a high degree of heterogeneity in the individual participation to the food exchange activity as well as a robustness facing environmental variabilities.
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-02327932
Contributor : Abes Star :  Contact
Submitted on : Wednesday, October 23, 2019 - 9:06:10 AM
Last modification on : Friday, May 29, 2020 - 3:36:02 AM
Long-term archiving on: : Friday, January 24, 2020 - 2:04:23 PM

File

BLES_Olivier_2019_414_A.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02327932, version 1

Collections

Citation

Olivier Bles. Approche théorique et expérimentale du choix de source et de la gestion collective des ressources alimentaires chez la fourmi. Biologie animale. Université de Strasbourg; Université libre de Bruxelles (1970-..), 2019. Français. ⟨NNT : 2019STRAJ007⟩. ⟨tel-02327932⟩

Share

Metrics

Record views

128

Files downloads

267