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Acta zoológica mexicana

versión On-line ISSN 2448-8445versión impresa ISSN 0065-1737

Resumen

MORALES-RANGEL, Adriana et al. Temperature effect in populations of Dendroctonus frontalis Zimmerman and Dendroctonus mexicanus Hopkins (Coleoptera: Curculionidae: Scolytinae) under a climate change scenario in Sierra Gorda queretana. Acta Zool. Mex [online]. 2018, vol.34, e3412141. ISSN 2448-8445.  http://dx.doi.org/10.21829/azm.2018.3412141.

In Mexico, about 17,900 ha of coniferous forests were affected in 2016 because of outbreaks of bark beetles. The increase in temperatures caused by climate change has been observed that directly affect pine forests and favors the development of insect pests. Altitude gradients generate temperature gradients, which are good study models in a context of climate changes. The aim of this study was to determine the effect of temperature on the abundance of Dendroctonus frontalis and Dendrocotonus mexicanus throughout its altitudinal distribution range, as well as determine a possible future change in abundance by 2030 in a climate change scenario. The results showed the highest abundance of D. frontalis and D. mexicanus at altitudes between 1,589 to 1,716 masl, where temperatures were higher than 16 °C; however at altitudes upper than 2,393 masl, the abundance of both species were lower, corresponding to temperatures below 13 °C. The A1B climate change scenario predicted that the temperature will increase 3.9 °C from 2015-2016 to 2030.

Palabras llave : Dendroctonus; altitudinal gradient; temperature.

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