Fungal fruitbodies and soil macrofauna as indicators of land use practices on soil biodiversity in Montado |
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| Authors: | Anabela Marisa Azul Sara Margarida Mendes José Paulo Sousa Helena Freitas |
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| Institution: | (1) Department of Life Sciences, Centre for Functional Ecology, University of Coimbra, PO Box 3046, 3001-401 Coimbra, Portugal;(2) Department of Life Sciences, IMAR-CMA, University of Coimbra, PO Box 3046, 3001-401 Coimbra, Portugal |
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| Abstract: | The impacts of land use on soil biodiversity are still poorly understood, although soil fungi and macrofauna are recognized
to provide benefits to ecosystems. Here, we tested whether land use practices used to control shrub density influences the
fruiting macromycetes (ectomycorrhizal-forming fungi—ECMF—and saprobes) and soil macrofauna diversity and abundance in Montado
ecosystems. To address this influence, we conducted a 2-years’ period monitoring of fungi fruitbodies and macrofauna in sixteen
experimental plots in Montado landscape in southern Portugal. A total of 4,881 frutibodies (57 taxa of ECMF and 64 taxa of
saprobic fungi) and 3,667 soil invertebrates (73 species and morphospecies) were monitored in the experimental plots. There
was greater losses in sporocarps production and taxa composition, particularly the ECMF, in plots where shrub density was
controlled by permanent grazing (Ca) or involving cutting practices followed by soil tillage (M), in comparison with cutting
practices with no soil tillage (Cu) and the control (C). The ECMF Laccaria laccata and Xerocomus subtomentosus exhibited a close relation with C and Cu plots while the saprobes, e.g., Entoloma conferendum, were associated to Ca and M plots. Most species associated to Cu plots were present in C plots during the 2 years, but not
in Cu after the cutting practices (in the second year of sampling). Regarding soil macrofauna, higher values of taxa and species
richness were observed in C and Cu plots in the first year of sampling. The ant species Aphaenogaster senilis and several Staphylinid morphospecies exhibited a close relation with M plots, whilst most spider families were directly
associated to C and Cu plots. After the shrub cutting practices, higher values of taxa and species richness of soil macrofauna
were observed in M and Ca plots; the presence of species with a high competitive ability to colonize disturbed areas faster
might explain the results. Contrary to the frutibodies production and diversity, species richness and abundance within soil
macrofauna were identical between Cu and C in 2004. Thus, fruiting macromycetes and soil macrofauna diversity and abundance
in Montado’s, appear highly sensitive to land use and somewhat reflected a trend of severity to the current shrub management
practices. |
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