Comparison of oribatid mites from agricultural soils with contrasting irrigation types in Hidalgo State, Mexico: a case study

Abstract

The objective of this work is to know the structure (composition and density) of the community of the oribatid mites and their relationship to edaphic parameters in 2 agricultural parcels with different type of irrigation. It constitutes the first work done with oribatid mites in agricultural plots irrigated with waste water in Mexico. Two agricultural parcels were selected: one is irrigated with waste water (San Salvador) and the other with well water (El Bondho) from the municipality of San Salvador. The density of oribatids in San Salvador was higher than that from El Bondho (2,360 and 1,935 ind/m 2 , respectively). The maximum abundances in percentages in San Salvador were for 3 species: Tectocepheus velatus elegans (48%), Scheloribates sp. (15%) and Oppiella nova (13%); but for El Bondho, there were only 2 species: Zygoribatula connexa (74%) and Ramusella sp. (10%). Due to soil conditions by the irrigation type, results gave information, on one hand, about the tolerance of some species like O. nova, R. ardua, and T. velatus elegans to heavy metals, and on the other hand, about the low resistance to heavy metals of Epilohmannia pallida and Z. connexa, which were present in the less polluted parcel, but are tolerant to saline soils. Results can be useful to support the use of some species of oribatid mites as bioindicators in ecosystems with similar conditions. ResumenEl presente trabajo tiene como objetivo conocer la estructura (composición y densidad) de la comunidad de ácaros oribátidos y su relación con parámetros edáficos en 2 parcelas agrícolas con riego diferente, y constituye el primer trabajo sobre ácaros oribátidos en suelos regados con aguas residuales en México. Se seleccionaron 2 parcelas agrícolas, R. Iglesias et al. / Revista Mexicana de Biodiversidad 90 (2019): e902780 2 https://doi.

Ecological indication potential of oribatid mites

“…The presence of several plants also increases the number of Oribatida species, even when the concentration of heavy metals is high in the soil (Manu et al, 2019). Iglesias et al (2019) studied the effects of heavy metals on abundance and community structure in irrigated agricultural fields in Mexico (19°40' -20°29' N; 99°57' -99°27' W Mezquital Valley, Hidalgo). The study area is irrigated with wastewater, which has high concentrations of heavy metals that accumulate in the soil over time.…”

New records of oribatid mites from Michoacán state, Mexico

“…Hammer (1962) recorded it from Chile near the coast of Puerto Montt. Ojeda (1989) and Iglesias et al (2019) reported it from Mexico, in Hidalgo and Mexico states. (Hammer, 1961) Observations: costula, crista and seta in absent; notogastral setae not dilated distally, sensillus slightly dilated and bilaterally ciliated.…”

Aislamiento de consorcio bacteriano localmente adaptado a suelo con antecedentes de acetoclor

“…Kamel (2020), evaluó el efecto del acetoclor en la población de ácaros oribátidos en el suelo y determinó que este compuesto juega un papel importante en la disminución de la actividad de estos organismos. Los cuales según Iglesias & Palacios-Vargas, José G Castaño-Meneses (2019) , estos ácaros juegan un papel ecológico importante y actúan como indicadores de perturbación del medio.…”