@article{fdi:010073957,
  title = {{F}acilitation costs and benefits function simultaneously on stress gradients for animals},
  author = {{D}angles, {O}livier and {H}errera, {M}. and {C}arpio, {C}. and {L}ortie, {C}. {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding the variation in species interactions along environmental stress gradients is crucial for making robust ecological predictions about community responses to changing environmental conditions. {T}he facilitation-competition framework has provided a strong basis for predictions (e.g. the stress-gradient hypothesis, {SGH}), yet the mechanisms behind patterns in animal interactions on stress gradients are poorly explored in particular for mobile animals. {H}ere, we proposed a conceptual framework modelling changes in facilitation costs and benefits along stress gradients and experimentally tested this framework by measuring fitness outcomes of benefactor-beneficiary interactions across resource quality levels. {T}hree arthropod consumer models from a broad array of environmental conditions were used including aquatic detritivores, potato moths and rainforest carrion beetles. {W}e detected a shift to more positive interactions at increasing levels of stress thereby supporting the application of the {SGH} to mobile animals. {W}hile most benefactors paid no significant cost of facilitation, an increase in potato moth beneficiary's growth at high resource stress triggered costs for benefactors. {T}his study is the first to experimentally show that both costs and benefits function simultaneously on stress gradients for animals. {T}he proposed conceptual framework could guide future studies examining species interaction outcomes for both animals and plants in an increasingly stressed world.},
  keywords = {arthropods ; environmental stress ; facilitation ; net effect ; species interaction ; stress-gradient hypothesis ; {EQUATEUR} ; {ANDES} ; {AMAZONIE}},
  booktitle = {},
  journal = {{P}roceedings of the {R}oyal {S}ociety {B} : {B}iological {S}ciences},
  volume = {285},
  numero = {1885},
  pages = {art. 20180983 [7 p.]},
  ISSN = {0962-8452},
  year = {2018},
  DOI = {10.1098/rspb.2018.0983},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073957},
}