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Abstract：
Beech forests play an important role in temperate and north Mediterranean ecosystems in Greece since they occupy infertile montane soils. In the last glacial maximum, Fagus sylvatica (beech) was confined to Southern Europe where it was dominant and in the last thousand years has expanded its range to dominate central Europe. We sampled four different beech forest types. We found 298 insect species associated with beech trees and dead beech wood. While F. sylvatica and Quercus (oak) are confamilial, there are great differences in richness of the associated entomofauna. Insect species that inhabit beech forests are less than one fifth of those species living in oak dominated forests despite the fact that beech is the most abundant central and north European tree. There is a distinct paucity of monophagous species on beech trees and most insect species are shared between co-occurring deciduous tree species and beech. This lack of species is attributed to the vegetation history and secondary plant chemistry. Bark and leaf biophenols from beech indicate that differences in plant secondary metabolites may be responsible for the differences in the richness of entomofauna in communities dominated by beech and other deciduous trees.
摘要：
山毛榉森林在希腊的温带和北地中海生态系统中起着重要作用，因为它们占据了贫瘠的山地土壤。在最后的冰川最大值，Fagussylvatica（山毛榉）仅限于南欧，在那里它占主导地位，在过去的一千年中，它的范围扩大到统治中欧。我们采样了四种不同的山毛榉森林类型。我们发现了298种与山毛榉树和枯木有关的昆虫。虽然F.sylvatica和Quercus（橡树）是家族性的，相关昆虫的丰富度存在很大差异。尽管山毛榉是中欧和北欧最丰富的树木，但居住在山毛榉森林中的昆虫物种不到生活在橡树为主的森林中的物种的五分之一。山毛榉树上缺乏单一食性物种，大多数昆虫物种在共同发生的落叶树种和山毛榉之间共享。物种的缺乏归因于植被历史和次生植物化学。山毛榉的树皮和叶片生物酚表明，植物次生代谢产物的差异可能是导致山毛榉和其他落叶乔木为主的群落中昆虫丰富度差异的原因。
