The selection by the Asiatic black bear (Ursus thibetanus) of spring plant food items according to their nutritional values.
The selection by the Asiatic black bear (Ursus thibetanus) of spring plant food items according to their nutritional values.
复制标题
亚洲黑熊(Ursus thibetanus)根据营养价值选择春季植物性食物。
DOI:
10.3897/zookeys.672.10078
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发表时间:
2017
期刊:
影响因子:
1.3
通讯作者:
Koike S
中科院分区:
文献类型:
--
作者:
Furusaka S;Kozakai C;Nemoto Y;Umemura Y;Naganuma T;Yamazaki K;Koike S
The present study aimed to investigate the nutritional aspects of the bear diet quantitatively, in order to understand plant food selection in spring. Bears were observed directly from April to July in 2013 and 2014, to visually recognize plant species consumed by bears, and to describe the foraging period in the Ashio-Nikko Mountains, central Japan. Leaves were collected from eight dominant tree species, regardless of whether bears fed on them in spring, and their key nutritional components analyzed: crude protein (CP), neutral detergent fiber (NDF), and total energy. Bears tended to consume fresh leaves of specific species in May, and nutritional analysis revealed that these leaves had higher CP and lower NDF than other non-food leaves. However, CP in consumed leaves gradually decreased, and NDF increased from May to July, when the bears’ food item preference changed from plant materials to ants. Bears may consume tree leaves with high CP and low NDF after hibernation to rebuild muscle mass.
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影响因子:
1.7
作者:
Aryal, Achyut;Brunton, Dianne;Raubenheimer, David
通讯作者:
Raubenheimer, David
影响因子:
2.3
作者:
Hilderbrand, GV;Schwartz, CC;Hanley, TA
通讯作者:
Hanley, TA
影响因子:
1.4
作者:
McLellan, B. N.
通讯作者:
McLellan, B. N.
影响因子:
6.1
作者:
Raubenheimer, David
通讯作者:
Raubenheimer, David
影响因子:
2
作者:
Derocher, AE;Stirling, I
通讯作者:
Stirling, I