Diversity and distribution of oribatid mites (Acari:Oribatida) in a lowland rain forest in Peru and in several environments of the Brazilians States of Amazonas, Rondônia, Roraima and Pará

Abstract

We are summarizing the current state of knowledge of the diversity and distribution of oribatid mites in 26 environments in northern Brazil and of a rain forest in Peru. The published studies were mostly concentrated in Central Amazon. Only one report is a result from an agricultural polyculture. We are providing the first lists of species for savannas and for the Brazilian states of Roraima and Pará. Up to date, 146 species are definitively identified from a total of 444 taxa with 188 known genera, reinforcing the notion of a rich biodiverse area. The high number of 298 non-described species (morphospecies) clearly shows the inadequacy of the current taxonomic knowledge for the region. Most of the registers are from forest environments. In the soil from primary forests, we registered the highest diversity (54-155 species/morphospecies). Eighty-nine species were unique to primary forests, followed by 34 for savannas, 32 in trees, 10 in "igapó", 4 in caatinga, 3 in secondary forests, two in "várzea" and one in polyculture. Twenty genera were the most speciose. The species with the largest home ranges were Rostrozetes foveolatus, Scheloribates sp. A, and Galumna sp. A. Our numbers reflect the lack of taxonomists and show that the taxonomic knowledge must be improved for the region or we will continue to work with taxonomic resolution of Order or Family and a high percentage of morphospecies, which will probably be appropriate to the question being asked in each study, but not for a comparison among environments.

Diversity of soil fungal communities of Cerrado and its closely surrounding agriculture fields

“…2a). This result is similar to that obtained by Franklin et al (2006) and may be related to high decomposition activity in this area. Genetic Wngerprinting was obtained by RISA of the ITS1-5.8 S-ITS2 region ampliWed fragments from the DNA extracted from soil by the direct extraction method (Quirino et al 2007).…”

Effect of Tree Identity, Temporal Variation and Edaphic Parameters on the Structure of the Edaphic Community of Oribatid Mites in an Evergreen Tropical Forest of Mexico

“…A. mexicanum releases few leaves and most of the nutrients it contributes to the soil come from captured organic matter that decomposes on it, so that the amount of plant material and decomposition rate is lower, also we assume a different species composition in oribatid communities of both plants soils, with more species inhabiting soil related with G. glabra due to a bigger thickness of soil organic horizon in comparison of A. mexicanum. Our second hypothesis is that the community will show a significant variation in its richness, abundance, diversity and composition in relation to temporality (months), and soil abiotic parameters, being the families Galumnidae, Scheloribatidae, Haplozetidae, Oppidae, Phthiracaridae and Carabodidae more abundant as reported in literature for others tropical rainforest (Franklin et al, 2006;Caruso et al, 2019).…”

Diversidade de ácaros edáficos no bioma Pantanal e potencial de algumas espécies para o controle biológico de pragas de solo

“…Pouco se sabe a respeito da acarofauna edáfica nos diferentes biomas do Brasil e as informações obtidas até o momento se referem a localidades restritas do país, que incluem Alagoas (Duarte, 2013;Santos, 2013;, Amazonas (Franklin et al, 2006), Mato Grosso (Britto et al, 2017), Rio Grande do Sul (Duarte et al, 2016), São Paulo (Mineiro e Moraes, 2001;Freire, 2007;Silva et al, 2007;Castilho e Moraes, 2010;Castilho et al, 2010;Castilho et al, 2012;Moreira et al, 2014;Santos et al, 2015;Azevedo et al, 2017) e Tocantins .…”