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首页> 外文期刊>Cunninghamia >Quantifying the abundance of four large epiphytic fern species in remnant complex notophyll vine forest on the Atherton Tableland, north Queensland, Australia
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Quantifying the abundance of four large epiphytic fern species in remnant complex notophyll vine forest on the Atherton Tableland, north Queensland, Australia

机译：量化澳大利亚昆士兰州北部阿瑟顿高原残存的复杂山茱y藤林中四种大型附生蕨类物种的丰度

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摘要

Epiphytes are generally considered rare in complex forests on the western edge of the Atherton Tablelands, north Queensland. This assertion is based on comparisons with wetter forests in the Wet Tropics bioregion, but is of limited use in restorationprojects where targets need to be quantified. We quantified 'rarity' for a subset of the epiphyte community in one of the largest remaining patches of Type 5b rainforest at Wongabel State Forest (17°18' S, 145°28' E). The abundance of large individualsof the epiphytic fern species Asplenium australasicum, Drynaria rigidula, Platycerium bifurcatum, and Platycerium superbum were recorded from 100 identified mid-storey or canopy trees. Epiphytes were less rare than the canopy trees sampled, averaging 1.7 individuals per tree. A clumped distribution was suggested with large epiphytes only occurring on 57 of the 100 trees. As tree size increased so did the number of individuals and species of large epiphytes recorded; only trees taller than 20 m yieldedmore than one epiphyte. Trees from the Meliaceae and Rutaceae hosted the most epiphytes, but host tree specificity patterns were not conclusive. Techniques for including epiphytes in restoration planning and projects are considered, and a quantified restoration target for epiphyte communities in Type 5b plantings is outlined.
机译：通常认为附生植物在昆士兰州北部阿瑟顿平原西部边缘的复杂森林中很少见。该主张是基于与热带湿生物区的湿润森林的比较得出的，但在需要量化目标的恢复项目中用途有限。我们对Wongabel州森林（17°18'S，145°28'E）剩下的最大的5b型雨林之一中附生植物群落的一个子集进行了量化。从确定的100层中层或冠层树种中记录了附生蕨类物种天南星（Asplenium australasicum），僵木（Drynariaustula），双侧柏（Ptyrium bifurcatum）和侧柏（Ptyriumium superbum）的大量个体。附生植物比冠层树少见，平均每棵树有1.7个人。提示丛生的分布，大型附生植物只出现在100棵树中的57棵上。随着树木大小的增加，记录的大型附生植物的个体和物种数量也随之增加。只有高出20 m的树木才能产生不止一种附生植物。 Meliaceae和Rutaceae的树木拥有最多的附生植物，但寄主树木的特异性模式尚无定论。考虑了将附生植物包括在恢复计划和项目中的技术，并概述了5b型种植中附生植物群落的量化恢复目标。

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