Abstract
This study aimed to evaluate the abundance and diversity of Coleoptera in five land use systems (LUS) and the soil properties that explain the distribution of these organisms. Uses involved native forest (NF), Eucalyptus plantation (EP), perennial pasture (PA), integrated crop-livestock (ICL) and no-tillage (NT) in western Santa Catarina, Brazil. Coleopterans were sampled by the methods of pitfall traps and soil monoliths during the winter and summer. Regardless of the LUS, 1,441 individuals were captured, with Staphylinidae being the most representative family (~47%). The use of NF showed higher abundances of coleopterans. The land use systems PA, NT, and ICL obtained high values of diversity of Coleoptera families, depending on the method and season of collection. The distribution of families was influenced by the sampling season, and some soil properties such as biopores, water content and phosphorus can explain the variation of abundance among the LUS.
Keywords:
soil fauna; beetles; community ecology; biodiversity
NF: native forest; EP: Eucalyptus plantation; PA: perennial pasture; ICL: integrated crop-livestock; NT: no-tillage; P: phosphorus; K: potassium; Ca/Mg: calcium/magnesium ratio; C/N: carbon/nitrogen ratio; TOC: total organic carbon; H + Al: potential acidity; Sw: soil water content; Bio: Biopores; MWD: mean weight-diameter of aggregates; RP: resistance to penetration; Others: rare families with only one individual.
NF: native forest; EP: Eucalyptus plantation; PA: perennial pasture; ICL: integrated crop-livestock ; NT: no-tillage; P: phosphorus; Mg: magnesium; C/N: carbon/nitrogen ratio; Sand: sand fraction; H + Al: potential acidity; pH SMP: hydrogen potential in SMP solution; MR: microbial respiration; Sw: soil water content; Bio: biopores; TP: total porosity; RP: resistance to penetration; Others: rare families with only one individual.