Estimation de la consommation de la macro-faune invertébrée benthique par les oiseaux d'eau en baie de Saint-Brieuc
| العنوان: | Estimation de la consommation de la macro-faune invertébrée benthique par les oiseaux d'eau en baie de Saint-Brieuc |
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| المؤلفون: | Ponsero, Alain, Le Mao, Patrick |
| المساهمون: | Réserve Naturelle Nationale Baie St-Brieuc, Réserves Naturelles de France-Réserves Naturelles de France, Laboratoire Environnement Ressource Bretagne Nord (LERBN), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Ponsero, Alain |
| المصدر: | Revue d'Ecologie, Terre et Vie Revue d'Ecologie, Terre et Vie, Société nationale de protection de la nature, 2011, 66 (4), pp.383-397 |
| بيانات النشر: | HAL CCSD, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | [SDE.BE] Environmental Sciences/Biodiversity and Ecology, alimentation, water birds, perturbation humaine, benthic macrofauna, human disturbance baie de Saint-Brieuc, oiseaux d'eau, bay of Saint-Brieuc, foraging behaviour, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, macrofaune benthique |
| الوصف: | International audience; The biomass and the productivity of benthic invertebrates were studied in the Bay of Saint-Brieuc in connection with the consumption by the nine most numerous species of limicoles and ducks present on the site. This consumption is about 1,9 g ash free dry weight/m²/year, this is similar to what was obtained in Mont-Saint-Michel bay, but is very lower to the results from Wadden Sea.Eutrophication generally induces an increase in overall productivity of the intertidal coastal ecosystem, as it has been observed in the Dutch Wadden Sea since the 50s. Consequently the birds' population grows very significantly in eutrophic systems. But this is not the case in the Bay of Saint-Brieuc where macro-zoobentic biomass produced and consumed by birds is comparable to what was observed in the Mont-Saint-Michel bay, an oligotrophic site characterized by a relatively low biomass and productivity. In the Saint-Brieuc bay excessive intakes of nutrients induced a significant development of Ulva armocicana, responsible for the spectacular green tides which greatly impacts this bay each summer. The proliferation of Ulva bring to a standstill the nutrient flows and by the way regulates the production of microphytoplankton so, indirectly, the abundance of higher trophic levels. |
| وصف الملف: | application/pdf |
| اللغة: | French |
| تدمد: | 2429-6422 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c9048d2ab11fdc57d6008bdf7b46fa0c https://hal.archives-ouvertes.fr/hal-00640510/file/Ponsero_LeMao2011-conso.pdf |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.dedup.wf.001..c9048d2ab11fdc57d6008bdf7b46fa0c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24296422 |
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