Taxonomic Diversity and Taxonomic Dominance: The Example of Forest Plantations in South-Central Chile

摘要: The study describes an analysis of the impact plantation forestry on taxonomic diversity plants in south-central Chile. In this biodiversity hotspot, plantations non-native species like Pinus radiata D. Don, Eucalyptus globules Labill. and Populus nigra L. have largely replaced native deciduous sclerophyllous forests. compares commercial forests using distinctness Simpson index. Most these indexes attest a considerably reduced to plantations. However, values for P. seem contradict other at first glance. It is shown that higher come from dominance. Taxonomic dominance fact radiate—a member infradivison Gymnospermae-bears only little resemblance plants, which are Angiospermae. Thus, it strongly dominates index high plant within its plots neglected. Indexes developed identify such dominant adjust analyses. After adjustment, all provide coherent image diversity. Plantation produces considerable decline provides valuable insights impacts complements standard