Soil oribatid mite in four typical vegetation communities of Misiones forest in the Iguazú area, Argentina

Abstract

-The objective of this work was to assess the soil oribatid mite communities in four sites of the Upper Paraná Bosque Atlántico, in the Iguazú National Park, Argentina and in surrounding areas: bamboo forest, palm forest and two mixed forests. A comparison between each pair of sites, based on the presence-absence of oribatid species, was performed using Jaccard's index. This is the first systematic sampling of oribatid mites in this area. A total of 56 genera and 96 oribatid species were found, 25 and 49 of them, respectively, are new citation for Argentina. The highest similarity was found between mixed forests. Almost 68% and 34% of the genera were cited for similar biotopes in Brazil and Paraguay, respectively.Index terms: bamboo, biogeography, bioprospection mixed forest, palm, soil mites. Ácaros oribatídeos do solo em quatro comunidades vegetais da floresta de Misiones, na região de Iguazú, ArgentinaResumo -O objetivo deste trabalho foi avaliar as comunidades de oribatídeos em quatro sítios da Mata Atlântica do Alto Paraná, na área do Parque Nacional Iguazú, Argentina, e em áreas adjacentes: floresta de bambu, floresta de palmito e duas florestas mistas. Foi feita uma comparação de cada par de sítios, com base na presença/ausência de oribatídeos, por meio do índice de Jaccard. Esta é a primeira amostragem sistemática dos oribatídeos dessa região. Cinquenta e seis gêneros e 96 espécies de oribatídeos foram encontrados, dos quais 25 e 49, respectivamente, são citados pela primeira vez para a Argentina. A maior similiraridade foi encontrada entre as duas florestas mistas. Quase 68% e 34% dos gêneros já foram coletados em biótopos similares no Brasil e no Paraguai, respectivamente.Termos para indexação: bambu, biogeografia, bioprospecção, floresta mista, palmito, ácaros do solo.

Responses of riffle beetle assemblages to deforestation in a semi-deciduous Atlantic Forest remnant

“…The PET is the largest environmentally protected area in Southern Brazil (17,491-ha area, 90-km-long perimeter). It comprises a significant portion of the preserved semi-deciduous Atlantic Forest in the region (Oliveira-Filho et al 2015) and extends over 65,000 ha in Argentina (Iguazú National Park) (Martínez et al 2009).…”

Ecologic study of soil oribatid mite, Scheloribates rectus (Acari) in high altitude Botanical Garden of Darjeeling Himalayas, India

“…Such a difference has perhaps exerted an impact on the quantitative variation in S. rectus population structure (distribution, density and seasonal abundance) in the sampled plots. Comparatively larger abundance in the well vegetated Plot-'Y' indicates a probable influence of vegetation on the mite population (Martínez et al 2009;Seniczak and Seniczak 2010;Seniczak et al 2011;Ghosh 2018). The exhaustive study of Indian pioneer researcher on soil arthropods with special reference to Collembola and Oribatida in Gangetic, Himalayan and sub Himalayan West Bengal as well as in Tripura, respectively, suggested a probable influence of vegetation on soil fauna through its effect on pore size, humus formation and soil moisture (Choudhuri and Roy 1972;Hattar et al 1992;Ghosh 2018).…”