ANSELMI, R.

BARTZ, M.

BROWN, G. G.

FORALOSSO, R.

GIRARDI, D.

KLAUBERG FILHO, O.

PASETTI, M.

ROSA, M. G. da

English

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XVI ICSZ – International Colloquium on Soil ZoologySoil Biodiversity and Monitoring – Poster Presentations79[MO_SBM_P58] Macrofauna in different land-use systems in the state of Santa Catarina, Brazil MARCIO GONÇALVES DA ROSA1, MARIE BARTZ1, OSMAR KLAUBERG FILHO1, GEORGE BROWN2, MAXIMILIANO PASETTI1, RAFAEL ANSELMI1, DEIVES GIRARDI1, ROGÉRIO FORALOSSO1, JOSÉ PAULO SOUSA3, DILMAR BARETTA1 1Universidade do Estado de Santa Catarina, Brazil; 2Empresa Brasileira de Pesquisa Agropecuária – Florestas, Brazil; 3IMAR-CMA, Department of Life Sciences, University of Coimbra, Portugal  Soil macrofauna communities are strongly affected by soil and land use management, withbidoversity patterns at local and regional levels being dependent from these activities In thisstudy, carried out under the the SisBIOTA project, five land use systems (LUS) were sampled(forest MT, eucalyptus plantation RE, pasture PA, no till PD and crop livestock integrationILP) in six counties distributed among two regions at Santa Catarina state, making a total of30 sites (6 for each LUS). Crop LUS (no till and crop livestock integration) presented the lowestabundance and number of taxa, whereas forest sites, particularly the native forest, andpasture showed the highest abundance and richness. Community composition wassignificantly distinct among the less managed LUS (MT, RE and PA), and between each one ofthese and the crop areas (PD and ILP). No significant differences were observed between thesetwo last LUS. Groups responsible for differences among the non crop LUS were mainlyHymenoptera, Coleoptera and Isoptera (explaining over 40% of the dissimilarity between LUS).Separation between crop areas and less managed LUS was also caused by the differentabundance of Oligoquetes (higher in crop LUS). A significant relationship between soilmacrofauna and soil chemical parameters was observed. Groups dominating in crop LUS(mainly earthworms) were positively related with pH, Ca and P, whereas groups dominating innon crop LUS (e.g., Hemiptera, Hymenoptera, Isoptera and Araneae) were more related to theorganic matter content. This relation is conditioned by soil use and soil management. This iscorroborated by a multivariate variance partition evaluating the influence of environmental(soil use and soil chemistry) and spatial variables on the composition of soil macrofauna.Results show a stronger influence of environmental vs. spatial processes (17.7% vs. 4.3%), witha low shared variance (2.8%). Among environmental factors, land use alone was moreresponsible in explaining macrofauna communities than chemistry alone (7.3% vs. 3.5%).However the shared variance is high (6.9%) indicating that interdependence of these twogroups of parameters. Overall, it is possible to conclude that, for these two regions withinSanta Catarina state, the distribution and abundance of soil macrofauna groups are mainlyconditioned by soil use, and partially explained by soil chemistry (this last derived not onlyfrom the type of soil but mainly from soil management).

Macrofauna in different land-use systems in the state of Santa Catarina, Brazil.

http://www.alice.cnptia.embrapa.br/bitstream/doc/938734/1/2012GeorgeBICSZMacrofauna1.pdf

Macrofauna in different land-use systems in the state of Santa Catarina, Brazil.

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