Abstract

FONSECA-GONZALEZ, Juana et al. Prescribed burns and coleopteran morphospecies biodiversity in a pine forest. Madera bosques [online]. 2024, vol.30, n.1, e3012535.  Epub Oct 25, 2024. ISSN 2448-7597.  https://doi.org/10.21829/myb.2024.3012535.

Fire is an important component of ecosystems, however, for many years it was perceived as a threat and an attempt was made to exclude it, affecting the process of ecological succession, and increasing the fuel load. One of the most used strategies to restore the fire regime is prescribed burning, nonetheless the consequences on the different components of the ecosystem are still not clearly known. For this reason, in the present work the effect of a prescribed burn on the biodiversity of beetle morphospecies in a Pinus montezumae forest was evaluated, through the collection of insects in traps baited with frontalin. Statistically, significant differences were found in the morphospecies biodiversity index of the area with prescribed burning and the surrounding area to which the fire was not applied. More specimens were collected in the burned area, mainly representatives of the families Bruchidae and Curculionidae (specifically Scolytinae). In the site without prescribed burning, only 18 families of Coleoptera were present out of the 21 that were registered in the burned area, however, the Non-metric Multidimensional Scaling (NMDS) analysis showed that the composition of both communities was similar.

Keywords : non-metric multidimensional scaling; chao2 index; alpha diversity; beta diversity; frontalin; Shannon-Wiener index.

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