Caracterização da fauna edáfica em plantios de <i>Eucalyptus</i> spp.

Abstract

RESUMOSolos florestais propiciam boas condições para o desenvolvimento e estabelecimento da fauna edáfica, devido principalmente à deposição de serrapilheira. No entanto, sistemas conduzidos em monoculturas por fornecerem um único substrato alimentar, podem propiciar o desenvolvimento de determinados grupos faunísticos em detrimento de outros, ocasionando surtos de espécies-praga. O objetivo deste trabalho foi caracterizar a fauna edáfica e sua relação com as variáveis meteorológicas, em plantios de Eucalyptus spp. ABSTRACTForest soils provide good conditions for the development and the establishment of soil fauna, manly by the deposition of litter. However, monoculture systems conducted in a single food providing substrate, can promote the development of certain fauna groups over others, causing outbreaks of pest species. The aim of this study was to characterize the soil fauna and its relationship with meteorological variables, in plantations of Eucalyptus spp. This study was conducted in six stands of three species of Eucalyptus: Eucalyptus dunni Maiden, Eucalyptus grandis Maiden and Eucalyptus grandis x Eucalyptus urophylla S. T. Blake (clone hybrid) and two ages (planted in 2006 and 2007). The stands was located at Cabanha da

Influence of eucalyptus development under soil fauna

“…The Coleoptera, Collembola and Hymenoptera orders showed the highest number of individuals in relation to the total population, with 15.34, 29.88 and 36.72%, respectively; all these groups together, they represented 81.94% of the total organisms (Table 1). This result corroborates to those of Garlet et al (2013) that verified in eucalyptus plantations higher proportions of organisms of the groups Coleoptera and Hymenoptera in relation to the total population.…”

“…Tews et al (2004) showed that the greater diversity of groups can provide a greater amount of exploitation of the environmental resources, with the contribution of a more diversified covered with vegetation. According to Garlet et al (2013), the increase in the deposition of plant material, due to the increase in the age of forest stands, provides better conditions for the development of edaphic fauna. Almeida et al (2017), in a study with different cropping systems showed that the native forest presented the highest value for this index, stating such result is due to the diversity of vegetal material contributed to the soil.…”

Edaphic Macrofauna as a Recovery Indicator of Abandoned Areas of Corymbia citriodora in the Southeastern Brazil

“…Tropical secondary forests are environments with a richness of species and micro-habitats that can be used by a variety of organisms. When these forests are replaced by monocultures, there is a simplification of the environment that reflects throughout the biota, including in the edaphic fauna community (Baretta et al, 2011;Frevolente et al, 2012;Garlet et al, 2013;Chang et al, 2017;Laird-Hopkins et al, 2017;Kooch et al, 2018). This is what happened to the non-girdled eucalyptus areas with lower values for abundance, richness and diversity when compared to the other areas analyzed.…”