New records of ptyctimous mites (Acari: Oribatida) from the Nearctic Region

Niedbała, Wojciech

doi:10.4039/n06-866

Cited by 12 publications

(12 citation statements)

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“…All adult Oribatida were identified to species or morphospecies using a Leica DM2500 compound-light microscope, a Nikon SMZ1500 dissecting microscope and published and unpublished taxonomic works by Marshall et al (1987), Niedbala (2002), Weigmann (2006) and Norton and Behan-Pelletier (2009). Species identifications were confirmed by Dr. V. Behan-Pelletier at the Canadian National Collection of Insects (CNC, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada), and voucher specimens have been deposited at the Lyman Entomological Museum (Ste.…”

Section: Samplingmentioning

confidence: 99%

Decomposing logs increase oribatid mite assemblage diversity in mixedwood boreal forest

Déchêne

Buddle

2009

Biodivers Conserv

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The removal of timber during harvesting substantially reduces important invertebrate habitat, most noticeably microhabitats associated with fallen trees. Oribatid mite diversity in downed woody material (DWM) using species-level data has not been well studied. We investigated the influence of decaying logs on the spatial distribution of oribatid mites on the forest floor at the sylviculture et aménagement forestiers écosysté-mique (SAFE) research station in the Abitibi region in NW Québec. In June 2006, six aspen logs were selected for study, and samples were taken at three distances for each log: directly on top of the log (ON), directly beside the log (ADJ) and at least one metre away from the log and any other fallen wood (AWAY). Samples ON logs consisted of a litter layer sample, an upper wood sample and an inner wood sample. Samples at the ADJ and AWAY distances consisted of litter samples and soil cores. The highest species richness was collected ON logs, and logs harboured a distinct oribatid species composition compared to nearby forest floor. There were species-specific changes in abundance with increasing distance away from DWM, which indicates an influence of DWM in structuring oribatid assemblages on the forest floor. Additionally, each layer (litter, wood and soil) exhibited a unique species composition and hosted a different diversity of oribatid mites. This study further highlights the importance of DWM to forest biodiversity by creating habitat for unique assemblages of oribatid mites.

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Section: Samplingmentioning

confidence: 99%

Decomposing logs increase oribatid mite assemblage diversity in mixedwood boreal forest

Déchêne

Buddle

2009

Biodivers Conserv

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“…Arthropods were sorted from the remaining debris, counted and classified, although due to the scarce abundance of most groups only oribatids were used for research purposes. Oribatid mites were identified to the species level, e.g., [30][31][32], and the most abundant species where classified into four trophic groups; litter feeders, fungi feeders, plant tissue [33][34][35][36][37] and unspecified, when species identification or trophic level could not be assigned (Appendix Table A1). For each pair of soil cores, we recorded diameter and wood density of the log covering the soil core.…”

Section: Sampling Designmentioning

confidence: 99%

Localized Effects of Coarse Woody Material on Soil Oribatid Communities Diminish over 700 Years of Stand Development in Black-Spruce-Feathermoss Forests

Doblas‐Miranda

Work

2015

Forests

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Abstract:In the black-spruce clay-belt region of Western Québec, soil nutrients are limited due to paludification. Under paludified conditions, nutrient subsidies from decomposing surface coarse woody material (CWM) may be important particularly during the later stages of ecosystem development when deadwood from senescent trees has accumulated. For soil organisms, CWM can alter microclimatic conditions and resource availability. We compared abundance and species richness of oribatid mites below or adjacent to CWM across a chronosequence which spans ca. 700 years of stand development. We hypothesized that oribatid abundance and richness would be greater under the logs, particularly in later stages of forest development when logs may act as localized sources of carbon and nutrients in the paludified substrate. However, oribatid density was lower directly under CWM than adjacent to CWM but these differences were attenuated with time. We suggest that oribatids may be affected by soil compaction and also that such microarthropods are most likely feeding on recently fallen leaf litter, which may be rendered inaccessible by the presence of overlying CWM. This may also explain the progressive decline in oribatid density and diversity with time, which are presumably caused by decreases in litter availability due to self-thinning and Sphagnum growth. This is also supported by changes of different oribatid trophic groups, as litter feeders maintain different numbers relative to CWM with time while more generalist fungi feeders only show differences related to position in the beginning of the succession. OPEN ACCESSForests 2015, 6 915

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“…Two species, A. herenessica (Pérez-Íòigo, 1986) and A. engelbrechti Niedba³a, 2006, have been recorded in the Afrotropical Region. The main area of the distribution of this Gondwanan genus includes the Oriental, Australian and southeastern Palaearctic areas (Aoki 1980, Niedba³a 2002, 2009, Liu et al 2009. So far, no species of the genus have been recorded in the Nearctic and Neotropical Regions.…”

Section: Introductionmentioning

confidence: 99%

A small population of an endemic mite species of the Gondwanan genus <i>Austrotritia</i> in Finland (Acari, Oribatida: Oribotritiidae)

Penttinen¹,

Hämäläinen²

2013

Entomol. Fennica

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The ptyctimous oribatid species, Austrotritia finlandica Niedbala & Penttinen, 2006, was described in Finland as the single representative of the genus in Europe. The main area of distribution of the Gondwanan genus Austrotritia covers the Oriental, Australian and southeastern Palaearctic Regions. In order to describe the more exact distribution and habitat of A. finlandica, more localities were studied in 2008-2012. Four hundred soil samples were studied from the southwestern archipelago and the islets along the Finnish coast of the Baltic Sea, and sixty tree hollows on an island. The number of records of the species increased from four to thirteen. Most of the islets where it was found were characterized by their small size (less than 1 km2) and remote location. It is concluded that a small but permanent population of Austrotritia finlandica lives in a limited area in the SW archipelago of Finland.

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New records of ptyctimous mites (Acari: Oribatida) from the Nearctic Region

Abstract: New records of the ptyctimous mites from the Nearctic Region are given. The new material includes 27 species of ptyctimous mites. The geographical distributions of seven species are more extensive than previously known.

Cited by 12 publications

References 1 publication

Decomposing logs increase oribatid mite assemblage diversity in mixedwood boreal forest

Decomposing logs increase oribatid mite assemblage diversity in mixedwood boreal forest

Localized Effects of Coarse Woody Material on Soil Oribatid Communities Diminish over 700 Years of Stand Development in Black-Spruce-Feathermoss Forests

A small population of an endemic mite species of the Gondwanan genus <i>Austrotritia</i> in Finland (Acari, Oribatida: Oribotritiidae)

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