Human pressures on two estuaries of the Iberian Peninsula are reflected in food web structure
| العنوان: | Human pressures on two estuaries of the Iberian Peninsula are reflected in food web structure |
|---|---|
| المؤلفون: | José Carlos García-Gómez, César Megina, I. García-Asencio, I. Donázar-Aramendía, J.M. Miró, J. E. Sánchez-Moyano |
| المساهمون: | Universidad de Sevilla. Departamento de Zoología |
| المصدر: | idUS. Depósito de Investigación de la Universidad de Sevilla instname Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019) |
| بيانات النشر: | Nature Research, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0301 basic medicine, Food Chain, Stable isotope analysis, Ecosystem ecology, lcsh:Medicine, Article, 03 medical and health sciences, 0302 clinical medicine, Humans, Human Activities, lcsh:Science, Ecosystem, Isotope analysis, Trophic level, geography, Carbon Isotopes, Multidisciplinary, geography.geographical_feature_category, Nitrogen Isotopes, Consumer, Ecology, Aquatic ecosystem, lcsh:R, Estuary, Food web, 030104 developmental biology, Spain, Threatened species, Ecological networks, Environmental science, lcsh:Q, Estuaries, 030217 neurology & neurosurgery |
| الوصف: | As a result of the increased urban and agricultural development in coastal environments, estuaries are among the most modified and threatened aquatic ecosystems. This study used stable isotopes to examine the effects of human impacts by contrasting the food web structures of two Iberian estuaries exposed to different degrees of human pressure. More complex feeding pathways were found in the more altered estuary (Guadalquivir). Greater spread among species along the carbon axis suggests that the primary consumers exploit organic matter with various origins, whereas different nitrogen signals of the secondary consumers suggest that they feed on different suites of prey. In contrast, the similar isotopic signals of secondary consumers in the relatively little influenced estuary (Guadiana) suggests similarity in diet composition and feeding on the same organic matter sources. Understanding trophic interactions in estuaries is vital for defining proper management and conservation, and the preliminary data provided here are one step in this direction. |
| وصف الملف: | application/pdf |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a79a8b39da59e67ff585e6f14cff73b9 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....a79a8b39da59e67ff585e6f14cff73b9 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |