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    黑龙江凤凰山自然保护区野猪秋季生境选择

    Autumn habitat selection of wild boar in the Fenghuangshan Nature Reserve, Heilongjiang Province

    • 摘要: 为掌握黑龙江省凤凰山国家级自然保护区内野猪种群的空间分布现状与迁移规律, 于2009年秋、冬两季,应用样线调查法和样方调查法对野猪的生境选择情况进行调查,结合Vanderloeg和Scavia选择系数(Wi)与选择指数(Ei)分析评估野猪对15个生境因子的偏爱程度,用秩和检验方法比较了野猪选择样方与非选择样方的差异。结果表明:野猪偏好选择食物相对丰富的阔叶林和针阔混交林,通常选择半阴半阳坡、下坡位、平缓坡、中度干扰以及隐蔽程度高、食物丰富的生境类型;不选择陡坡和阴坡,以及隐蔽程度低、重度干扰的生境类型;在所分析的13个因子中,食物丰富度、隐蔽程度、坡度与坡位4个因子是野猪生境选择的决定性因子,秩和检验表明它们在野猪选择样方与非选择样方间的差异显著(P0.05)。

       

      Abstract: The habitat quality of the wild boar (Sus scrofa) was investigated by transect and plot surveys in the Fenghuangshan Nature Reserve, Heilongjiang Province, in autumn and winter of 2009, to explore spatial distribution and migration patterns of this animal. Vanderloeg  Scavia’s selectivity coefficient (Wi) and selectivity index (Ei) were used to assess the habitat factors that the wild boar preferred. MannWhitey’s U test was used to explore the difference between samples selected and those neglected by the wild boar. The results showed that the wild boar tend to live in such habitats as mixed coniferous and broadleaf forests with abundant food supply, preferring half sunny / half shady slopes with lower slope position, gentle slope degree, moderate anthropogenic interference and highlevel vegetation cover, and avoiding habitats with steep slope, lowlevel vegetation cover and severe disturbance. Four of the 13 given factors, food richness, level of concealment, slope gradient and slope position, were decisive for the wild boar’s utilization of habitats. In addition, the difference between samples selected and those avoided by the wild boar is significant (P  0.05).

       

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