tailieunhanh - Báo cáo khoa học: "Influence of oak mast on feeding behaviour of red deer (Cervus elaphus L)"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài:"Influence of oak mast on feeding behaviour of red deer (Cervus elaphus L). | Ann Sci For 1991 48 547-559 Elsevier INRA 547 Original article Influence of oak mast on feeding behaviour of red deer Cervus elaphus L JF Picard 1 p Oleffe 2 B Boisaubert2 1INRA-Centre de Recherches Forestieres Laboratoire de Phỵtoécologie Forestiers Champenoux 54280 Seichamps 2 Office National de la Chasse CNERA Cervidés-Sanglier Place Exelmans 55000 Bar-Le-Duc France Received 21 January 1991 accepted 3 June 1991 Summary Rumen content analysis was used for assessing the autumn and winter diet of red deer in the same forest during 2 successive hunting seasons. This paper compares the results of the second season with an abundant oak-mast to those obtained during the first one. The main conclusions are - clear relationships exist between time and or weather conditions and the diet of red deer - forest fruits such as wild apples pears and acorns are very important foods for red deer in autumn corn consumption is reduced when acorns are available - sedges grasses and fallen dead leaves most likely taken from the soil surface are also important foods particularly when acorns are scarce - rape is mostly consumed during cold and snowy periods - consumption of woody twigs increases dramatically when snow covers the ground. red deer oak-mast rumen content feeding behaviour Resume Influence d une glandée importante sur le comportement alimentaire du cerf Cer-vus elaphus L . Le regime alimentaire automnal et hivernal d une population de Cerf élaphe presents dans une foret du Nord-Est de la France Hêtraie-Chênaie calcicole a été étudié par la technique des contenus stomacaux au cours de deux saisons de Chasse successives la dernière 19841985 étant caractérisốe par une glandée abondante. De la comparaison entre les deux saisons de Chasse II ressort que les conditions mẻtéorologiques et la disponibilité offerte interfdrent sur le regime alimentaire du Cerf. Dans les deux cas on constate - une consommation importante de fruits charnus pommes st poires sauvages pourtant relative-