在广西元宝山自然保护区野外设置了82个20 m×20 m样方，初步分析黑熊春季觅食地生境特征，对16个生态因子进行主成分分析和单因子适合度检验。结果表明：黑熊觅食地生境特征的主要影响因子为水源距离、海拔和灌木密度；次要因子为食物丰富度因子(树径、乔木密度、乔木距离、灌木距离)、地理性因子(坡向、坡位、坡度)、干扰性因子(树桩密度、树桩距离、倒木距离、人为干扰距离)和微生境因子(避风性、郁闭度)。对黑熊的生境喜好程度分析发现：水源丰富、一定海拔、避风性适中、植物茂盛(乔木密度、灌木密度、乔木距离、灌木距离)、坡向向阳、郁闭度好(30 %～80 %)、坡度较大的山嵴和山坡位为其最适生境。由于人类活动增加，干扰因子(树桩密度、树桩距离、倒木距离、人为干扰距离)成为影响黑熊生境选择的重要因素。
Abstract
From Jan 2009 to March 2009, black bears foraging habitat character in Yuanbaoshan Nature Reserve of Guangxi was studied. In fieldwork, we collected 82 samples (20 m×20 m), sixteen ecological factors. Principal components analyses results showed that main factors of black bear foraging habitat characteristics were water distance, elevation, and shrub density; secondary factors were food abundance factor (tree diameter, tree density, tree distance, shrub distance),geographical factors (aspect, slope position, ratio of slope),interference factors (tree stump density, tree stump distance, log distance, human disturbance distance),and microhabitat factors (shelter of wind, canopy density). Single factor analyses indicated black bear priorities were water richness,certain altitude、moderate shelter of wind、vegetation richness (tree density, shrub density, shrub distance、tree distance),aspect towards sun、canopy density (30 %-80 %),ridge steep slope and optimal slope position habitat. As human activity increase, interference factors (tree stump density, tree stump distance, log distance, distance to human disturbance) were important factors which influence black bear habitat selection. Our conclusion provide important information for Nature Reserve and forest management department.
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参考文献
[1]许龙.东北黑熊的生物学特性及其资源利用[J].特种经济动植物, 2003（12）: 6.
[2]侯万儒,张泽均,胡锦矗.卧龙自然保护区黑熊种群生存力初步分析[J].动物学研究,2001,22(5):357-361.
[3]鲁庆彬,胡锦矗.岷山山系黑熊的种群数量及分析[J].生态学杂志,2002,21(4):12-14.
[4]侯万儒,任正隆,喻晓刚,等.四川九顶山自然保护区野生黑熊种群生存力初步分析[J].西华师范大学学报,2003,24(4):381-385.
[5]侯万儒,任正隆,胡锦矗.唐家河自然保护区黑熊种群生存力初步分析[J].广西科学,2003,10(4):301-304.
[6]鲁庆彬,胡锦矗.岷山黑熊生境选择的初步分析[J].兽类学报,2003,23(2):98-103.
[7]陈洋,夏茜,王文,等. 黑龙江龙口自然保护区黑熊春季生境选择[J].野生动物,2010,31(2):63-68.
[8]战如亮,王文,陈洋,等.黑龙江省通河县乌拉浑林场黑熊的生境选择[J].野生动物,2010,31(2)：69-73.
[9]苏宗明,黄玉清,李先琨. 广西元宝山南方红豆杉群落特征的研究[J]. 广西植物,2000,20 (1): 1-10.
[10]宁世江,李锋,何成新.生物多样性关键地区-广西元宝山科学考察研究[M].南宁：广西科学技术出版社,2008.
[11]Liang Q, Thomson A J. Habitat abundance relationships of the earthworm Eisenia rosea (Savigny) (Lumbricidae), using principal component regression analysis[J]. Canadian Journal of Zoology, 1994，72：1354-1361.
[12]颜忠诚,陈永林.动物的生境选择[J].生态学杂志,1998,17 (2):43-49.
[13]夏茜,王文,沈广爽.小兴安岭南坡黑熊植物性食物营养分析[J].野生动物杂志,2009,30(3):121-123.
[14]张明海.黑龙江省熊类资源现状及其保护对策[J]. 动物学杂志,2002, 37 (6) :47-52.
[15]张春兰,卢学理,袁喜才.广东省黑熊资源及保护对策[J]. 野生动物杂志,2007,28(4):44-46.
[16]李伟.白石砬子地区黑熊资源调查研究与保护建议[J].辽宁林业科技,2004（2）:40-42.
[17]Takahashi K,Shiota T, Hiroo T,et al. Seasonal variation in fleshy fruit use and seed dispersalby the Japanese black bear (Ursus thibetanus japonicus)[J]. Ecol Res,2008,23(2): 471-478.
[18]Koike S,Kasai S,Yamazaki K,et al. Fruit phenology of Prunus jamasakura and the feeding habit of the Asiatic black bear as a seed disperser[J]. Ecol Res,2008,23（2）: 385-392.
[19]Tanguay J A, Reyes R C,Clegg J S. Habitat diversity and adaptation to environmental stress in encysted embryos of the crustacean Artemia[J]. J Biosci, 2004, 29(4): 489-501.
基金
收稿日期：2010-06-13修回日期：2010-12-12基金项目：广西自然科学基金青年基金项目（2010GXNSFB013044）；广西教育厅立项项目（20106LX607）；河池学院“引进人才科研启动经费项目”（2010QSN009）；河池学院青年科研课题（2010AN001）作者简介：原宝东（1981—），讲师，博士。Email： yuanbao365@163.com。
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