Comparison of the population of collémbolos (hexápoda families entomobrylidea and isotomidae) and its function in three systems of agronomic management of coffee, municipality of libano - colombia

Abstract

The arthropod individuals were collected, coded and identified using the Berlese funnel methodology,
found in 45 samples (1 kilogram) of three farms, under coffee cultivation, planted in
an organic, conventional and mixed system, in the municipality of Lebanon (Tolima, Colombia)
during 2014. It was obtained that the arthropods of the soil of the conventional farm (Type I)
has a higher index of diversity than the organic farm and this last higher index than the mixed
farm. In spite of this, the organic farm presents a greater population of arthropods that duplicate
the populations of the conventional one and quintuplicate those of the mixed farm. From this
analysis of arthropods, it is found that individuals of Phyllum Hexapoda, class collémbola and
Families Entomobrylidae and Isotomidae present significant population differences between
the Organic farm (153 and 138 individuals respectively) mixed farm (119 and 92 respectively)
and the conventional one ( 87 and 16 respectively). When analyzing the organic matter content
of each of the farms, we have percentages of 18.5 organic, 11.4 Mixed farm and 4.25 conventional
farm, which is related to the role of the colembolos in the transformation of particles and
decomposition of organic waste.