The life of the undergrowths of Brandefer hillock

This board presents part of the alimentary relationships that mean life in an ecosystem, here, in this wooded area as the ones on top of the hillock. At the ground stratum level, the decomposers (snails, slugs) transform the fallen leaves to humus and will be the prey of spiders and birds such as the blackbird or the song thrush. The phytophagous insects (plant eaters) of the grassy stratum will serve as food to wood birds such as the chiffchaff or the robin which, in turn will be the preys of predator like the sparrow hawk.

Sur le tertre, 48 espèces d'oiseaux ont été observées dont 44 espèces nicheuses (valeur voisine de ce que l'on observe dans un bocage typique. Les groupements forestiers représentent un peu plus de 20% de la surface du tertre (aulnaie-frênaie, ripisylve, chênaie-châtaigneraie, chênaie acidiphile).