Diversity of edaphic Rhodacaroid mites (Acari: Mesostigmata: Rhodacaroidea) in natural ecosystems in the state of São Paulo, Brazil

Silva, Edmilson S.; Moraes, Gilberto José de; Krantz, G. W.

doi:10.1590/s1519-566x2004000500002

Cited by 13 publications

(14 citation statements)

References 15 publications

(23 reference statements)

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“…Adicionalmente, la riqueza y diversidad de plantas también pueden influir la riqueza y diversidad faunística mediante mecanismos que alteran la cantidad, calidad y heterogeneidad de los recursos disponibles para la fauna del suelo (ST. JOHN et al, 2006). SILVA et al (2004) afirmaron que la mayor diversidad de ácaros pudiera estar correlacionada con el espesor y diversidad de la hojarasca a partir de la cual éstos fueron muestreados. Por otra parte, el Bosque Deciduo puede constituir un hábitat más estable dado que la vegetación predominante está conformada principalmente por árboles de más de 5 m de altura, cuyo aporte de materia orgánica es más alto pudiendo albergar un mayor número de taxa.…”

Section: Resultados Y Discusiónunclassified

“…3). Estas curvas pueden ser utilizadas para evaluar el grado de disturbancia de una comunidad (SILVA et al, 2004), por lo que se presume que el Bosque Deciduo representa un hábitat menos disturbado que el Matorral. Finalmente, en áreas donde existen mayor cantidad de factores estresantes, la diversidad tiende a ser más baja y la abundancia de la especie más común tiende a incrementarse mientras que la abundancia de las especies más raras tiende a disminuir hasta el punto en el cual algunas especies raras pueden extinguirse (ODUM, 1988).…”

Section: Resultados Y Discusiónunclassified

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Diversidad de ácaros (Acari: Prostigmata, Mesotigmata, Astigmata) asociados a la hojarasca de formaciones vegetales del Parque Universitario de la UCLA, Venezuela

Vásquez

Sánchez²,

Valera

2007

Iheringia, Sér. Zool.

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ABSTRACT. Mite diversity (Acari: Prostigmata, Mesotigmata, Astigmata) associated to soil litter from two vegetation zones at the University Park UCLA, Venezuela. Soil mite diversity (Prostigmata, Mesostigmata, Astigmata) inhabiting in litter-soil layer from a Shrubland and a Deciduous Forest was estimated from December 2000 to November 2001 in the University Park of UCLA (Universidad Centroccidental Lisandro Alvarado), state of Lara, Venezuela. Samplings were made by using pitfall traps along an 1,800 mtransect in both areas. All morfotypes were mounted in microscope slides using Hoyer's medium. A total of 51 mite morfotypes were collected with higher abundance in Prostigmata (2,528) as compared to Mesostigmata (926) and Astigmata (12). Eupodidae (Prostigmata) and Macrochelidae (Mesotigmata) showed higher abundance in both locations. Higher morfotype richness (S= 43), diversity (H'= 2.67) and evenness (E= 0.69) were found in Deciduous Forest compared to values from Shrubland (S= 36, H'= 2.12 and E= 0.52). Both areas showed a similarity index (J') of 0.59. Although more individuals were found in Shrubland, the diversity-dominance curves indicated that this is a more disturbed habitat than Deciduous Forest. Further detailed studies are required to determine acarofauna role in trophic web maintenance in soils from tropical areas.KEYWORDS. Diversity, richness, deciduous forest, shrubland, soil mites. RESUMEN.Se estudió la diversidad de los ácaros (Prostigmata, Mesostigmata y Astigmata) habitantes del estrato suelo-hojarasca de un Matorral y un Bosque Deciduo del Parque Universitario de la UCLA (Universidad Centroccidental Lisandro Alvarado), Estado Lara, Venezuela, desde diciembre 2000 a noviembre 2001. El muestreo se realizó usando trampas de caída colocadas a lo largo de una transecta de 1.800 m en ambas localidades. Todos los morfotipos fueron montados en láminas microscópicas usando líquido de Hoyer. Se registró un total de 51 morfotipos de ácaros con predominancia del número de individuos pertenecientes a Prostigmata (2528) respecto a Mesostigmata (926) y Astigmata (12). En ambas localidades, Eupodidae (Prostigmata) y Macrochelidae (Mesotigmata) fueron las familias más abundantes. Se determinó mayor riqueza (S= 43), diversidad (H'= 2,67) y uniformidad (E= 0,69) de morfotipos en el Bosque Deciduo al ser comparado con los valores obtenidos en el Matorral (S= 36, H'= 2,12 y E= 0,52). Ambas zonas mostraron un índice de similitud (J') de 0,59. La pendiente de la curva de diversidad-dominancia permitió inferir que el Matorral constituye un hábitat más disturbado que el Bosque Deciduo a pesar de albergar mayor número de individuos. Se requiere realizar estudios más detallados que sirvan de base para determinar el rol de la acarofauna en el equilibrio de la red trófica de suelo de las regiones tropicales. PALABRAS CLAVE. Diversidad, riqueza, bosque deciduo, matorral, ácaros del suelo.

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Section: Resultados Y Discusiónunclassified

Diversidad de ácaros (Acari: Prostigmata, Mesotigmata, Astigmata) asociados a la hojarasca de formaciones vegetales del Parque Universitario de la UCLA, Venezuela

Vásquez

Sánchez²,

Valera

2007

Iheringia, Sér. Zool.

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“…However, it would be beneficial to intensify the surveys of Phytoseiidae in hotspots, because (1) some hotspots had to be excluded from analysis in this study, (2) the sampling efforts were not equivalent in all the areas considered; and (3) the significant and high correlation between the number of publications and the number of Phytoseiidae species recorded or described show that mite reports are not yet saturated. Recent works have been conduced in two hotspots areas in Brasil (Arruda Filho and Moraes 2003;Silva et al 2004;Lofego and Moraes 2006;Castro and Moraes 2007). These works show for Phytoseiidae and also for other Mesostigmata mites a higher number of species in Mata Atlantica (Atlantic Forest) than in Cerrado.…”

Section: Congruence Between Plants Vertebrates and Phytoseiid Mitesmentioning

confidence: 93%

“…Tixier et al (2008) showed that high species diversity and high endemism rates both at species and genus levels have been observed in the Neotropical region. So, as for other mites especially soil fauna (Silva et al 2004;Dusbabek et al 2007;Klimov and O'Connor 2007), the Neotropical region shelters a great part of the biodiversity of Phytoseiid mites. The relative low number of Phytoseiidae observed in the Tropical Andes is thus certainly due to a low sampling effort in relation to the high number of plants (habitats).…”

Section: Differences In Occurrence Of Phytoseiidae In Hotspot Areasmentioning

confidence: 99%

Arthropods in biodiversity hotspots: the case of the Phytoseiidae (Acari: Mesostigmata)

Tixier

Kreiter

2008

Biodivers Conserv

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The biodiversity hotspot concept was defined by Myers in 1988 to determine priority areas for conservation. They have high endemism levels and have lost more than 70% of their original vegetated area. To date, there is little information on arthropod diversity in these zones. This work focuses on the biodiversity of the Phytoseiidae (Acari), one of the best known among the order Mesostigmata, in these threatened areas. These mites are usually predators and they are worldwide spread. Geographic distribution of phytoseiids in 27 biodiversity hostspots was assessed from data of the last world catalogue published in 2004. One thousand two hundred and thirty species are reported from at least one hotspot (62% of the total species number) and 604 species (30% of the total species number) are endemic to the 27 hotspots considered. The number of reports/publication in hotspot areas (2.6) is higher than in non-hotspot zones (1.5). Hotspots areas could be thus considered as a great reservoir of the Phytoseiidae diversity, just as they are for vertebrates and plants. Correlations between plant, vertebrate, mite diversity and endemism, as well as congruence rates between endemism levels of these three organisms suggest that the biodiversity patterns of plants and vertebrates mirror well those of the Phytoseiidae (both for endemicity and species richness). More intense conservation efforts in biodiversity hotspots would thus be assumed to affect plant and vertebrate biodiversity, as already known, but also arthropod biodiversity, as it was assumed. These results further support thus the importance of these zones in biodiversity conservation, even for organisms like mites, very small and poorly studied in this regards. More data on arthropods are, however, required to confirm these preliminary observations.

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“…Rhodacarid mites are predators of small invertebrates, primarily other arthropods and nematodes, in a variety of habitats including soil, plant litter, ocean beach debris and small mammal nests (Moraza 2004;Silva et al 2004). A few individuals of this mite were found on older bat guano deposits in the Big Room during the initial study.…”

Section: Rhodacarella Cavernicolamentioning

confidence: 99%

Diversity and ecology of the macro-invertebrate fauna (Nemata and Arthropoda) of Kartchner Caverns, Cochise County, Arizona, United States of America

Pape¹,

OConnor²

2014

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being integrally connected with the ecology of the cave. It was reported that the majority of the invertebrates in the cave are supported by bat guano deposited annually by the summer resident cave myotis (Myotis velifer Allen, 1890) maternity colony. Our recent study revealed that the ecology of the cave is more complex, and that there are additional anastomosing food webs operating in the cave that are independent of the bat guano nutrient source. Many of these food webs are associated with natural entrances to the cave, which provide other sources of energy input and allow ingress and egress of invertebrates and other small animals. We currently recognize 98 macroinvertebrate species that are elements of the ecology of Kartchner Caverns.

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Diversity of edaphic Rhodacaroid mites (Acari: Mesostigmata: Rhodacaroidea) in natural ecosystems in the state of São Paulo, Brazil

Cited by 13 publications

References 15 publications

Diversidad de ácaros (Acari: Prostigmata, Mesotigmata, Astigmata) asociados a la hojarasca de formaciones vegetales del Parque Universitario de la UCLA, Venezuela

Diversidad de ácaros (Acari: Prostigmata, Mesotigmata, Astigmata) asociados a la hojarasca de formaciones vegetales del Parque Universitario de la UCLA, Venezuela

Arthropods in biodiversity hotspots: the case of the Phytoseiidae (Acari: Mesostigmata)

Diversity and ecology of the macro-invertebrate fauna (Nemata and Arthropoda) of Kartchner Caverns, Cochise County, Arizona, United States of America

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