Termite assemblages in two distinct montane forest types at 1000 m elevation in the Maliau Basin, Sabah
Termite assemblages in two distinct montane forest types at 1000 m elevation in the Maliau Basin, Sabah
复制标题
沙巴马廖盆地海拔 1000 米两种不同山地森林类型中的白蚁群落
DOI：
10.1017/s0266467400001401
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发表时间：
2000
影响因子：
1.4
通讯作者：
David T. Jones
中科院分区：
文献类型：
--
作者：
David T. Jones
在海拔1000m的沙巴州马利奥盆地的两种主要森林生境：下山森林和上山林矮化相中，对白蚁进行了调查。土壤、木材、凋落物、白蚁巢穴和高达地面2米的树栖微生境均采用带状样带取样。每种森林类型均设置两条样带。上山地森林样带采集到11种和13种物种，而下山地森林样带采集到15种和19种物种。加上随机抽样的物种记录(在每种森林类型中进行的努力大致相同)，在上山地森林中总共发现18种，在下山地森林中发现34种。在两种森林类型中，取材白蚁的物种丰富度和相对丰度相似。然而，低山森林以土壤和极度腐烂的土壤类木材为食的物种的丰富度和相对丰度更高。这种差异主要归因于：(I)与上山地森林沙质土壤和厚厚的泥炭覆盖相比，下山地森林发育良好的富含有机质的土壤更适合土壤栖息和造丘白蚁；(Ii)上山地森林的低海拔和开阔的树冠创造了小气候条件，与下山地森林的高大、封闭的树冠相比，不利于土壤白蚁的生长。正如预期的那样，与东南亚低地森林的类似研究相比较，证实了高地森林相对恶化。
Termites were surveyed at an altitude of 1000 m in Maliau Basin, Sabah (Borneo), in two primary forest habitats: lower montane forest and stunted facies of upper montane forest. Soil, wood, litter, termite nests, and arboreal microhabitats up to a height of 2 m above ground were sampled using a belt transect protocol. Two transects were run in each forest type. The upper montane forest transects collected 11 and 13 species, compared with 15 and 19 in the lower montane forest transects. With the addition of species records from casual sampling (conducted with roughly equal effort in each forest type), totals of 18 species were found in the upper montane forest, and 34 species in the lower montane forest. Similar species richness and relative abundance of wood-feeding termites were found in both forest types. However, the lower montane forest had greater richness and relative abundance of species that feed on soil and extremely decayed soil-like wood. This difference is attributed mainly to (i) the well developed, organic-rich soils of the lower montane forest being more suitable for soil-dwelling and mound-building termites compared with the upper montane forest which has sandy soils with a thick covering of peat, and (ii) the low-stature and open canopy of the upper montane forest creates microclimatic conditions which are adverse for soil-feeding termites compared with the high, closed canopy in the lower montane forest. As expected, comparisons with similar studies in lowland forests in Southeast Asia confirmed that the upland forests are relatively depauperate.