Functioning of shallow lakes in response to anthropogenic stress and disturbances : diversity, organization and dynamic of vegetation
type: Dataset
description: One important issue of research in Ecology is to understand how anthropogenic activities are influencing biodiversity and what are the consequences on ecosystem functioning. The aim of the study is to improve the knowledge of the mechanisms governing aquatic plant communities, particularly those related to human disturbance and eutrophication. Meta-ecosystems constituted by networks of fish-farming shallow lakes are study models adapted to our problematic because they are submitted to a strong anthropogenic pressure and because they show a high environmental variability. First, we studied the impact of watershed management practices on shallow lakes eutrophication. In a second step, we measured eutrophication effect on productivity and on diversity of phytoplankton communities. Finally, we were able to link 3 types of constraints generated by human practices (eutrophication, drying and connectivity between shallow lakes) to aquatic plant communities in terms of specific and functional diversity. The impact of eutrophication, recruitment and establishment of aquatic plant communities has been approached through the relationship between the seed bank and established vegetation. Eutrophication is the major factor responsible for the loss of plant biodiversity in shallow lakes. However frequent disturbances due to drying events induce a cyclic succession that helps maintain a high biodiversity.
landing page: https://theses.hal.science/tel-00842280
identifier: NNT: 2011LYO10064
keyword: assechement
keyword: banque-de-propagules
keyword: community-ecology
keyword: connectivite
keyword: connectivity
keyword: cyclic-succession
keyword: drought
keyword: ecologie-des-communautes
keyword: eutrophication
keyword: eutrophisation
keyword: infoeu-reposemanticsdoctoralthesis
keyword: phytoplancton
keyword: phytoplankton
keyword: propagule-bank
keyword: sdvsalife-sciences-q-bioagricultural-sciences
keyword: submerged-aquatic-vegetation
keyword: succession-cyclique
keyword: theses
keyword: vegetation-aquatique-submergee
issued: 2026-05-10T10:41:11.067926
modified: 2026-05-10T10:41:11.067930
language: fr
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Functioning of shallow lakes in response to anthropogenic stress and disturbances : diversity, organization and dynamic of vegetation
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00842280
issued: 2026-05-10T10:41:11.073319
modified: 2026-05-10T10:41:11.045853