Mesostigmatid mites (Acari : Mesostigmata) on rainforest tree trunks: Arboreal specialists, but substrate generalists?

Beaulieu, F, Walter, DE, Proctor, HC, Kitching, RL and Menzel, F (2006) Mesostigmatid mites (Acari : Mesostigmata) on rainforest tree trunks: Arboreal specialists, but substrate generalists?. Experimental And Applied Acarology, 39 1: 25-40. doi:10.1007/s10493-006-0022-2


Author Beaulieu, F
Walter, DE
Proctor, HC
Kitching, RL
Menzel, F
Title Mesostigmatid mites (Acari : Mesostigmata) on rainforest tree trunks: Arboreal specialists, but substrate generalists?
Journal name Experimental And Applied Acarology   Check publisher's open access policy
ISSN 0168-8162
Publication date 2006-01-01
Sub-type Article (original research)
DOI 10.1007/s10493-006-0022-2
Open Access Status Not yet assessed
Volume 39
Issue 1
Start page 25
End page 40
Total pages 16
Place of publication Dordrecht
Publisher Springer
Language eng
Subject C1
279999 Biological Sciences not elsewhere classified
780105 Biological sciences
Abstract Predatory mites (Acari: Mesostigmata) on tree trunks without significant epiphytic growth in a subtropical rainforest in Eastern Australia were assessed for habitat specificity (i.e. whether they are tree trunk specialists or occupying other habitats) and the influence of host tree and bark structure on their abundance, species richness and species composition. The trunks of nine tree species from eight plant families representing smooth, intermediate and rough bark textures were sampled using a knockdown insecticide spray. In total, 12 species or morphospecies of Mesostigmata (excluding Uropodina sensu stricto) were collected, most of which are undescribed. Comparison with collections from other habitats indicates that epicorticolous Mesostigmata are mainly represented by suspended soil dwellers (six species), secondarily by generalists (four species) and a bark specialist (one species). A typical ground-dwelling species was also found but was represented only by a single individual. In terms of abundance, 50.5% of individuals were suspended soil dwellers, 40.7% bark specialists, and 8.3% generalists. Host species and bark roughness had no significant effect on abundance or species richness. Furthermore, there was no clear effect on species composition. The distribution of the most frequently encountered species suggests that most mesostigmatid mites living on bark use many or most rainforest tree species, independent of bark roughness. These findings support the hypothesis that some epicorticolous Mesostigmata use tree trunks as 'highways' for dispersing between habitat patches, while others use it as a permanent habitat.
Keyword Habitat Specificity
Host Specificity
Bark Roughness
Epicorticolous Mites
Predators
Subtropical Rainforest
Entomology
Corticolous Epiphyte Dwellers
Australian Forests
Thermal-properties
Host-specificity
Pine Bark
Fauna
Assemblages
Collembola
Beetles
Phytoseiidae
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2007 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Wed, 15 Aug 2007, 18:55:33 EST