Experimental and Applied Acarology (2006) 39, 149-158

Jan Hubert, Zuzana Munzbergová, Zuzana Kucerová and Václav Stejskal (2006)
Comparison of communities of stored product mites in grain mass and grain residues in the Czech Republic
Experimental and Applied Acarology 39 (2), 149-158
Abstract: In storage facilities one can find grain either in stored grain mass or in grain residues in the store corners or machinery. Although it is claimed that grain residues are serious pest reservoirs since they harbor numbers of stored product arthropods and are connected via continuous emigration with grain mass, the documentation for this is not convincing. Therefore in 78 selected grain stores, we simultaneously sampled the grain mass and residues in order to compare concurrent mite communities in these two different habitats. We found 30 species in about 614 000 individuals in residues and 23 species in about 20 000 individuals in grain mass. Canonical correspondence analysis (CCA) of transformed abundance data showed differences in the communities of mites in grain mass and residues: (i) species associated to grain residues (e.g. Tyrophagus longior, Tydeus interruptus, Acarus farris and Cheyletus eruditus) and (ii) species associated to both grain mass and grain residues (e.g. Tarsonemus granarius, Acarus siro, Tyrophagus putrescentiae, Lepidoglyphus destructor and Cheyletus malaccensis). Although the residue samples had more mites and higher species diversity than the stored grain mass, no correlation in mite abundance and species numbers between samples from grain residues and grain mass was found, thereby indicating low connectivity of these two habitats.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jan Hubert, Vaclav Stejskal, Zuzana Kucerova

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
surveys/sampling/distribution
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tyrophagus putrescentiae	Stored grain	Czech Republic
	Lepidoglyphus destructor	Stored grain	Czech Republic
	Tyrophagus longior	Stored grain	Czech Republic
	Tarsonemus granarius	Stored grain	Czech Republic
Cheyletus eruditus (predator)			Czech Republic
Cheyletus malaccensis (predator)			Czech Republic