رسالة جامعية
Environmental and biotic factors influencing the size structure of the aquatic communities in Mediterranean ponds
العنوان: | Environmental and biotic factors influencing the size structure of the aquatic communities in Mediterranean ponds |
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المؤلفون: | Sgarzi, Serena |
المساهمون: | Brucet Balmaña, Sandra, Badosa Salvador, Anna, Universitat de Vic - Universitat Central de Catalunya. Departament de Biociències |
المصدر: | TDX (Tesis Doctorals en Xarxa) |
بيانات النشر: | Universitat de Vic - Universitat Central de Catalunya |
سنة النشر: | 2022 |
المجموعة: | Universitat de Vic (UVIC): Tesis Doctorals en Xarxa (TDX) / Theses and Dissertations Online |
مصطلحات موضوعية: | Ecologia aquàtica, Aigua dolça, Peixos, Zooplàncton, Fitoplàncton, Població, Macroinvertebrates, Zooplankton, Phytoplankton, Aquatic ecology, Freshwater, Medi Ambient |
الوقت: | 574 |
الوصف: | Les basses mediterrànies són ecosistemes amb un alt valor ecològic, que pateixen una forta regressió per les pressions antròpiques. No obstant això, l'atenció científica rebuda sempre ha estat molt escassa, i la majoria dels estudis ecològics s'han centrat en la seva biodiversitat, més que l'estructura de la mida corporal de les seves comunitats. Les comunitats planctòniques i les poblacions del peix endèmic i amenaçat Aphanius iberus (Valenciennes, 1846) es van analitzar en basses costaneres permanents salobres (Capítol 1 i 2) i en basses temporànies d'aigua dolça (Capítol 3). L'estructura de la mida es va estudiar mitjançant diferents mètriques de mida (índex de diversitat de mida, espectre de mida, longitud corporal mitjana) i es va aplicar a diferents escales ecològiques (grups funcionals, nivell de població, considerant més d'un nivell tròfic a la vegada), per esbrinar els principals factors ambientals i biòtics que determinaven l'estructura de mides de les comunitats i poblacions aquàtiques a les basses mediterrànies. ; Mediterranean ponds are ecosystems with a high ecological value, suffering a strong regression due to anthropogenic pressures. Notwithstanding, the received scientific attention has always been far lesser than other larger water bodies. Most ecological studies on Mediterranean ponds have focused on their biodiversity, but only to a lesser extent they have paid attention to the body size structure of their communities. Planktonic communities and populations of the endemic and threatened fish Aphanius iberus (Valenciennes, 1846) were analyzed in brackish permanent coastal ponds (Chapter 1 and 2) and in temporary freshwater ponds (Chapter 3). Size structure was studied using different size metrics (e.g., size diversity index, size spectrum, mean body length, etc.) and applied at different ecological scales (i.e., functional groups, population level, more than one trophic level together), to unravel which were the main environmental and biotic drivers shaping the size structure of aquatic ... |
نوع الوثيقة: | doctoral or postdoctoral thesis |
وصف الملف: | application/pdf; 130 p. |
اللغة: | English |
العلاقة: | http://hdl.handle.net/10803/673519Test |
الإتاحة: | http://hdl.handle.net/10803/673519Test |
حقوق: | L'accés als continguts d'aquesta tesi queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons: http://creativecommons.org/licenses/by-nc-nd/4.0Test/ ; info:eu-repo/semantics/openAccess |
رقم الانضمام: | edsbas.DA2A1535 |
قاعدة البيانات: | BASE |
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