Partitioning the impact of abiotic factors and spatial patterns on species richness and community structure of ground ant assemblages in four Bornean rainforests
Partitioning the impact of abiotic factors and spatial patterns on species richness and community structure of ground ant assemblages in four Bornean rainforests
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DOI：
10.1111/j.1600-0587.2010.06538.x
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发表时间：
2011-02
期刊：
影响因子：
5.9
通讯作者：
D. Mezger;M. Pfeiffer
中科院分区：
文献类型：
--
作者：
D. Mezger;M. Pfeiffer
不同的理论已经被提出来解释生态群落的结构。在这里，我们研究了环境因素和空间格局对地面觅食蚂蚁群落在四个不同的森林类型的Gunung Mulu国家公园在沙捞越，婆罗洲，马来西亚。不同森林类型的环境参数不同，并居住着不同的蚂蚁群落，与各种指示物种的特点，单一的森林类型。土壤体积、树木数量和落叶量对蚂蚁群落的影响最大。空间格局与环境参数相关，也影响蚂蚁群落。环境参数影响群落组成只有中度（r2 = 0.14），但有很高的影响物种丰富度（r2 =0.44）。空间格局只解释了物种格局总方差的一小部分，而蚂蚁群落格局的排序空间中的大部分剩余空间仍然无法解释。我们的结论是，环境参数形状的数量生态位内的热带土壤栖息地，但身份的物种，占据这些生态位的其他因素，如竞争，性状和中性的过程，可能会进一步减少无法解释的差异物种排序。
Contrasting theories have been proposed to explain the structure of ecological communities. Here, we studied the impact of environmental factors and spatial patterns on ground-foraging ant communities in four different forest types of Gunung Mulu National Park in Sarawak, Borneo, Malaysia. Forest types differed in their environmental parameters and were inhabited by distinct ant communities, with various indicator species characteristic for single forest types. Three environmental parameters, soil volume, number of trees and amount of leaf litter, had the most influence on ant communities. Spatial patterns were correlated with environmental parameters and also influenced ant communities. Environmental parameters influenced community composition only moderately (r 2 = 0.14), but had a high impact on species richness (r 2 =0.44). Spatial patterns explained only a small fraction of the total variance in species patterns, while much of the residual space in the ordination space of ant community patterns remained unexplained. We conclude that environmental parameters shape the number of niches within a tropical soil habitat, but identities of species that occupy those niches are accounted for by other factors like competition, traits and neutral processes that may further reduce unexplained variance in species ordination.