Fauna edáfica como indicadora de qualidade do solo em fragmentos florestais e área sob cultivo do cafeeiro

Abstract

The reduction of natural forest cover, mostly due to the competition with the agricultural activity, as well as its low conservation level, can diminish the diversity of the soil fauna organisms, which act in the decomposition of organic matter and nutrient cycling, for example, key functions for maintaining soil quality. Thus, the objective of this study was to verify the potential of edaphic fauna as a bioindicator of soil and / or environmental quality in Secondary Semideciduous Seasonal Forest (MC), Regenerating Semideciduous Seasonal Forest (MI) and coffee growing area (CA). Soil invertebrates were collected by the TSBF methodology, in which 10 soil monoliths (25 x 25 cm and 0-20 cm profundity) were retired from each area, 30 m apart. At the same collection points, the litter was sampled and 10 fall traps were installed, which remained buried in the ground for three days. Soil was collected for chemical attributes analysis and soil moisture, and litter. Considering the TSBF methodology the highest density (m2) of edaphic organisms was observed in the MC area, differing statistically from CA. For the fall traps the highest abundance was found in the MI area, without

Soil macrofauna in areas with different successional vegetation stages after Eucalyptus grandis harvest in Brazil

“…These areas showed the highest numbers of Amphipoda, Araneae, Blattodea, Chilopoda, Coleoptera, Diptera, Lepidoptera, Neuroptera, Opiliones, Pseudoescorpionida, and Scorpiones. Changes in the composition of macrofauna depending on land use has been previously reported, where areas with low anthropogenic interference showed more stability in terms of soil macrofauna biodiversity when compared with areas with greater interference (Rosa et al, 2015;Silva et al, 2020;Góes et al, 2021).…”

Spatio-temporal variation of insects with immature phase in the soil of Cerrado Northeast of Brazil

“…The removal of the litter layer at sites II (capoeira forest) and IV (gallery forest) did not change the temperature significantly; this was most likely because the cover and shading of the trap itself had mitigated the effects of sunlight on the soil in these treatments. The litter minimizes the local temperature as it is a labile source of trophic resources and mainly a source of refuge for insects residing in this stratum (Silva et al, 2020), in the subsurface layers of soils where the physical and chemical attributes of the soils define optimal pedoecological rules that govern the taxonomic and ecological dynamics of life on the ground (ROSA et al, 2015, POMPEO et al, 2016 and above-ground (LEPAGE et al, 2012), where they are subject to the effects of vegetation cover and climatological factors.…”

“…Most of these studies, which involve the immature phase of insects, refer to the aquatic environment (URBINATTI et al, 2001;SILVA et al, 2020), fecal beds of bovines and birds (ZIMMER et al, 2006), and address insects of medical and agricultural importance. In studies of insects with an immature phase in the soil, the emphasis is on taxonomy, reproductive biology, and biogeography.…”

Fauna do solo associada a diferentes sistemas de cultivo

“…As áreas P, SAF, CC e VN foram estatisticamente semelhantes entre si e superiores em relação aos demais sistemas (CO, MG e MM). Estes resultados corroboram, em partes, com os obtidos por outros autores (Lima et al, 2010;Guimarães et al, 2015;Pereira et al, 2017;D. C. Silva et al, 2020) que, ao avaliarem a fauna edáfica em diferentes sistemas de uso do solo, observaram maiores abundâncias de organismos em áreas com maior diversidade vegetal (mata nativa e SAF).…”