Abstract
Human activities, like logging, modify the dynamics and composition of virgin forest, affecting the equilibrium between the natural species. Nothofagus forests sustain an entomofauna that is endemic, and includes relict species of significant conservation importance. The aim of this work was to evaluate the changes in insect diversity and abundance of a Nothofagus pumilio forest managed by a shelterwood cut system. Insect capture was carried out using a set of traps along a horizontal and vertical gradient. Sampling was taken in day and night conditions, in post-harvesting situations and different phases of stand development. The diversity and abundance of insects varied significantly during the forest cycle (defined as 100–200 years according to site quality). One morphospecies was lost every 11 years until the end of the forest cycle. It may be necessary to modify the current silvicultural system to one that conserves insect diversity through a reduction in disturbance.
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Spagarino, C., Martínez Pastur, G. & Peri, P. Changes in Nothofagus pumilio forest biodiversity during the forest management cycle. 1. Insects. Biodiversity and Conservation 10, 2077–2092 (2001). https://doi.org/10.1023/A:1013150005926
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DOI: https://doi.org/10.1023/A:1013150005926