The carabid fauna (Coleoptera: Carabidae) during postfire regeneration of boreal forest: properties and dynamics of species assemblages
The carabid fauna (Coleoptera: Carabidae) during postfire regeneration of boreal forest: properties and dynamics of species assemblages
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北方森林火灾后再生期间的步甲动物群（鞘翅目：步甲科）：物种组合的特性和动态
DOI：
10.1139/z92-067
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
N. J. Holliday
中科院分区：
文献类型：
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作者：
N. J. Holliday
在一场强烈的森林火灾之后，在火灾前以白杨为主的烧毁地点，在以针叶树(云杉)为主的第二个焚烧地点，以及与之相匹配的未焚烧地点，用陷阱诱捕步甲甲虫。在主成分排序中，烧毁地点的步甲类物种组合最初是不同的，但在研究结束时，与未焚烧的杨树地点相似。杨树火烧地的集合体比针叶林火烧地的集合体更快地接近最终位置。火烧地个体数和物种数较少，但对数序列α和均匀度无明显影响。物种增加和物种丧失分别作为定殖率和灭绝率的指标。物种损失在焚烧和未焚烧地点之间没有显著差异。在未焚烧的地点，物种增长与以前以预期方式捕获的物种数量有关，如果增长是有限的…
Following an intense forest fire, carabid beetles were sampled by pitfall trapping in a burned site that had been dominated before the fire by aspen, Populus tremuloides, in a second burned site that had been dominated by conifers (Picea spp.), and in matching unburned sites. In principal-components ordination, carabid species assemblages in burned sites were initially distinct, but at the end of the study were similar to those in the unburned aspen site. The assemblage in the burned aspen site approached its final position more rapidly than that in the burned conifer site. There were fewer individuals and fewer species in burned sites, but the logarithmic series α and the evenness were unaffected by burning. Species gain and species loss were used as indices of colonization rate and extinction rate, respectively. Species loss did not differ significantly between burned and unburned sites. In unburned sites, species gain was related to previous numbers of species caught in the way expected if gain was lim...