Plant, herbivore and parasitoid community composition in native Nothofagaceae forests vs. exotic pine plantations

1.Converting natural areas into land used for production causes dramatic changes in the configuration of landscapes. Both the loss and fragmentation of native habitats contribute to biodiversity loss worldwide and the consequent creation of artificial edges can have a significant influence on community assembly. The conservation value of plantation forests has been identified for specific species, but it is not clear whether exotic pine plantations can also be used for the preservation of native communities in general.

2.We studied whether community composition of different trophic levels (plants, herbivorous caterpillars, parasitoids) changed across native Nothofagaceae forests to exotic pine plantations, and whether habitat edges affected communities differently depending on the forest type considered. To accomplish this, we sampled plants, herbivorous caterpillars and parasitoids in native Nothofagaceae and exotic pine plantation forests and compared community composition of each ...

1. 将自然区域转化为生产用地，会对景观格局造成剧烈改变。全球范围内，原生栖息地的丧失与破碎化均会加剧生物多样性丧失，而由此产生的人工生境边缘也会对群落构建产生显著影响。已有研究证实人工林对特定物种具备保护价值，但目前尚不清楚外来松人工林是否可普遍用于保护本地群落。
2. 本研究旨在探究：从南山毛榉科（Nothofagaceae）原生林到外来松人工林的生境梯度上，植物、植食性蛾类幼虫、寄生性天敌等不同营养级的群落组成是否发生变化；同时明确生境边缘对群落的影响是否因森林类型而异。为此，我们在南山毛榉原生林与外来松人工林中分别对植物、植食性蛾类幼虫及寄生性天敌开展采样调查，并对比各分类群的群落组成……