Brachychthoniidae Thor, 1934

Fischer, Barbara M. & Schatz, Heinrich, 2013, Biodiversity of oribatid mites (Acari: Oribatida) along an altitudinal gradient in the Central Alps, Zootaxa 3626 (4), pp. 429-454: 430-434

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http://dx.doi.org/10.11646/zootaxa.3626.4.2

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lsid:zoobank.org:pub:6D8C178A-C46B-4595-84F5-9D732CBAF7C8

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http://treatment.plazi.org/id/D55C878B-9921-B52C-FF0D-30715D501282

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scientific name

Brachychthoniidae Thor, 1934
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Brachychthoniidae Thor, 1934 

Eobrachychthonius borealis Forsslund, 1942  Distribution: Europe, Asia; also Arctic Habitat: forest soils

Obergurgl area: pine forest at 2050 m (Zirbenwald) TABLE 1. Occurrence and relative abundace of oribatid mite species in different altitudes in Obergurgl. LR (Liebener Rippe, Androsacetum alpinae, 2900 m a.s.l.), HM (Hohe Mut, Caricetum curvulae 2600 m), SK (Schönwieskopf, Nardetum 2300 m), ZW (Zirbenwald, pine forest 2050 m). Abundances in ind./m 2.

LR HM SK ZW Achipteria sellnicki  4127 Adoristes ovatus  1 Anachipteria alpina  2877 1647 Berniniella bicarinata  655 Caleremaeus monilipes  238 4107 Camisia biurus  218 Camisia spinifer  60 179 Carabodes cf. rugosior  7937 Carabodes schatzi  1587 198 Cepheus dentatus  1627 Cepheus latus  456 Ceratoppia bipilis  1 Ceratozetes thienemanni  3155 Chamobates birulai  79 Chamobates borealis  1 79 Chamobates cuspidatus  8036 Chamobates voigtsi  238 Cymbaeremaeus cymba  40 Damaeus gracilipes  159 Diapterobates humeralis  79 Dissorhina ornata  25377 Dissorhina signata  1310 Edwardzetes edwardsi  40 317 Eobrachychthonius borealis  40 Epidamaeus bituberculatus  1

Eueremaeus oblongus  20 Eupelops curtipilus  377 456 Eupelops plicatus  60

Eupelops strenzkei  378

Eupelops subuliger  754 Eupelops torulosus  179

Fuscozetes intermedius  497 40 2718 2619 Fuscozetes setosus  40 972 Hermannia gibba  40 Jugatala angulata  1 Jugatala cribelliger  437

Kunstidamaeus diversipilis  99

Liacarus coracinus  1 Liacarus oribatelloides  139 Licneremaeus licnophorus  1 Liochthonius simplex  1

......continued on the next page LR HM SK ZW Malaconothrus monodactylus  40 1 Melanozetes meridianus  2166 40

Metabelba pulverosa  417 Micreremus brevipes  1 Microppia minus  317 Mycobates  sp. 40 2361 60 Oppiella (Moritzoppia) unicarinata  1171 Oppiella (Oppiella) falcata  40 1 1885 Oppiella (Oppiella) nova  1 40

Oppiella (Oppiella) obscura  1

Oppiella (Oppiella) uliginosa  46548 Oppiella (Rhinoppia) obsoleta  665 Oppiella (Rhinoppia) subpectinata  198 Oribatella longispina  1091 Oribatella reticulata  318

Oribatula amblyptera  40 Oribatula interrupta  40 1 Oribatula longelamellata  1 1766 952 218 Oribatula tibialis  1885 635 Oromurcia sudetica  1252 417

Pantelozetes paolii  417 496 Parachipteria punctata  437 Passalozetes intermedius  40 Phauloppia nemoralis  1 Phthiracarus globosus  2520 Phthiracarus laevigatus  496 Platynothrus peltifer  298 Porobelba spinosa  99 Quadroppia quadricarinata  60 Scheloribates laevigatus  40 754 Steganacarus (Atropacarus) striculus  1

Steganacarus (Atropacarus) wandae  1

Suctobelba altvateri  119 Suctobelba regia  139 Suctobelbella acutidens lobata  813 Suctobelbella hamata  258 Suctobelbella perforata  40

Suctobelbella sarekensis  198 Suctobelbella subcornigera  198 Tectocepheus  sp. 198

Tectocepheus velatus sarekensis  139 893 99 317 Tectocepheus velatus tenuis  1 1825 179

......continued on the next page Liochthonius simplex (Forsslund, 1942) 

Distribution: Palaearctic, Greenland; East Asia, Australia Habitat: mainly forest soils

Obergurgl area: pine forest at 2050 m (Zirbenwald) Remark: In the previous studies Brachychthoniidae  have also been recorded at higher altitudes of Obergurgl. Verachthonius laticeps Strenzke, 1951  (sub. Brachychthonius laticeps  ), Liochthonius lapponicus (Trägårdh, 1901)  and Liochthonius sellnicki (Thor, 1930)  have been detected on Liebener Rippe in abundances of 300 to 600 individuals per m 2. In this study, species of this family were found only in minor  quantity in the pine forest (2050 m a.s.l.). Some taxa of the family Brachychthoniidae  (especially several species of the genera Liochthonius  and Verachthonius  ) are known to occur in raw soils in high abundances (Schweizer 1956; Moritz 1976; Schatz 2004). Most probably the absence of Brachychthoniidae  on Liebener Rippe in 2010 is referable to a change of the soil from raw soil to a later successional stage.