Spring variation of total sugars and phenols on woody plants important for Red and Roe deer in Montesinho Natural Park (NE Portugal)

• Autor(a) principal: Haddouch, Imane
• Data de Publicação: 2017
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10198/14774
• topic: Capreolus capreolus; Cervus elaphus; Cistus ladanifer; Pterospartum tridentatum; Quercus rotundifolia; Total sugar; Domínio/Área Científica::Ciências Agrárias::Agricultura, Silvicultura e Pescas

Red deer (Cervus elaphus) and Roe deer (Capreolus capreolus) are two ungulate species cohabite the same area in the Natural Park of Montesinho, this work aims to manage the study spring diet of both deer with exploring the importance of secondary metabolites on feeding selection by analysis phytochemical of three Mediterranean species Quercus rotundifolia, Pterospartum tridentatum, Cistus ladanifer. The collection of data was achieve during flowering period, from fives sites in the park. Phytochemical analysis based on extraction of total sugar by methanol-aqueous (80,20) reagent using DNS method, and the extraction of total Phenolic compounds TPC by hot methanol and folin-ciocalteu reagent and using spectrophotometer to read the absorbance of each sample. The quantification of sugar was use as a calibration curve the “glucose”, and for phenol we have used “acid Gallic”. The statistical analysis (Anova test, Tukey HSD) of all results obtained from the both extraction showed significative differences between plant species and between months and were used to compare between the choice of deer species on feeding during flowering period (March, April, June).Quercus rotundifolia showed highest phenol and sugar contents and seems to be avoided to consumption by deer. In contrast Pterospartum tridentatum showed an increase of sugar concentration and maintain phenolic contentsthat could explain the consumption during this period.