Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforest

We have investigated the relative importance of bark roughness and host tree species in determining the diversity and make-up of coleopteran assemblages on the trunks of trees in sub-tropical rainforest in south-east Queensland, Australia. There are clear, statistically significant, patterns in the...

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Main Authors: Florian MENZEL, Roger L. KITCHING, Sarah L. BOULTER
Format: Article
Language:English
Published: Institute of Entomology, Biology Centre, Czech Academy of Science 2004-06-01
Series:European Journal of Entomology
Subjects:
Online Access:https://www.eje.cz/artkey/eje-200402-0011_Host_specificity_or_habitat_structure_-_The_epicortical_beetle_assemblages_in_an_Australian_subtropical_rainfo.php
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author Florian MENZEL
Roger L. KITCHING
Sarah L. BOULTER
author_facet Florian MENZEL
Roger L. KITCHING
Sarah L. BOULTER
author_sort Florian MENZEL
collection DOAJ
description We have investigated the relative importance of bark roughness and host tree species in determining the diversity and make-up of coleopteran assemblages on the trunks of trees in sub-tropical rainforest in south-east Queensland, Australia. There are clear, statistically significant, patterns in the composition of the assemblages which reflect bark roughness. Rougher bark had associated greater species and family richness, a higher proportion of "rare" species, a higher value for Shannon diversity and lower values for the Simpson and Berger-Parker Index (measures of dominance within the sample). The data support strongly the idea that there is a bark-specific beetle assemblage. The rougher bark was associated with significantly greater numbers of an anobiid species, Dorcatoma sp., and of the latridiid species Aridius australicus. Rougher bark also harboured significantly larger species. The most likely explanation for this seems to be related to the physical heterogeneity and biological complexity of the habitat, presenting, as it does, greater opportunities for shelter, feeding specialisation and intra-species aggregation. Rougher bark contained a higher proportion of both predatory and xylophagous groups than did smoother categories. No clear influence of tree species could be detected although some trends were evident.
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spelling doaj.art-d4dc31fcb8b44774afb91933b6c19cf92022-12-21T21:28:01ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292004-06-01101225125910.14411/eje.2004.035eje-200402-0011Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforestFlorian MENZEL0Roger L. KITCHING1Sarah L. BOULTER2Australian School of Environmental Studies, Griffith University, Nathan, Queensland 4207, AustraliaAustralian School of Environmental Studies, Griffith University, Nathan, Queensland 4207, AustraliaAustralian School of Environmental Studies, Griffith University, Nathan, Queensland 4207, AustraliaWe have investigated the relative importance of bark roughness and host tree species in determining the diversity and make-up of coleopteran assemblages on the trunks of trees in sub-tropical rainforest in south-east Queensland, Australia. There are clear, statistically significant, patterns in the composition of the assemblages which reflect bark roughness. Rougher bark had associated greater species and family richness, a higher proportion of "rare" species, a higher value for Shannon diversity and lower values for the Simpson and Berger-Parker Index (measures of dominance within the sample). The data support strongly the idea that there is a bark-specific beetle assemblage. The rougher bark was associated with significantly greater numbers of an anobiid species, Dorcatoma sp., and of the latridiid species Aridius australicus. Rougher bark also harboured significantly larger species. The most likely explanation for this seems to be related to the physical heterogeneity and biological complexity of the habitat, presenting, as it does, greater opportunities for shelter, feeding specialisation and intra-species aggregation. Rougher bark contained a higher proportion of both predatory and xylophagous groups than did smoother categories. No clear influence of tree species could be detected although some trends were evident.https://www.eje.cz/artkey/eje-200402-0011_Host_specificity_or_habitat_structure_-_The_epicortical_beetle_assemblages_in_an_Australian_subtropical_rainfo.phpcoleopteraalpha diversitybarkrainforestaustralia
spellingShingle Florian MENZEL
Roger L. KITCHING
Sarah L. BOULTER
Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforest
European Journal of Entomology
coleoptera
alpha diversity
bark
rainforest
australia
title Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforest
title_full Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforest
title_fullStr Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforest
title_full_unstemmed Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforest
title_short Host specificity or habitat structure? - The epicortical beetle assemblages in an Australian subtropical rainforest
title_sort host specificity or habitat structure the epicortical beetle assemblages in an australian subtropical rainforest
topic coleoptera
alpha diversity
bark
rainforest
australia
url https://www.eje.cz/artkey/eje-200402-0011_Host_specificity_or_habitat_structure_-_The_epicortical_beetle_assemblages_in_an_Australian_subtropical_rainfo.php
work_keys_str_mv AT florianmenzel hostspecificityorhabitatstructuretheepicorticalbeetleassemblagesinanaustraliansubtropicalrainforest
AT rogerlkitching hostspecificityorhabitatstructuretheepicorticalbeetleassemblagesinanaustraliansubtropicalrainforest
AT sarahlboulter hostspecificityorhabitatstructuretheepicorticalbeetleassemblagesinanaustraliansubtropicalrainforest