caa a22 4500 463168267 CHVBK 20180406164805.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10530-006-9055-z doi (NATIONALLICENCE)springer-10.1007/s10530-006-9055-z The effects on terrestrial arthropod communities of invasion of a coastal heath ecosystem by the exotic weed bitou bush ( Chrysanthemoides monilifera ssp. rotundata L.) [Elektronische Daten] [Lance Wilkie, Gerasimos Cassis, Michael Gray] Bitou bush (Chrysanthemoides monilifera ssp. rotundata) is a major environmental weed of littoral habitats on the southeastern coast of Australia. This study investigates the impacts upon selected arthropod assemblages of habitat invasion by this weed. Sixteen sites were placed at four geographic localities within nature reserves between Forster and Budgewoi on the coast of New South Wales. The sampling design included two spatial scales (between and within localities) and eight repeat samples (taken at two scales of temporal separation). Arthropods were collected from both arboreal and epigaeic micro-habitats. Specimens of ants (Hymenoptera: Formicidae), beetles (Coleoptera), true bugs (Heteroptera) and spiders (Araneae) were identified to species level. Differences in α diversity and species abundance distributions between the taxonomic assemblages are described, along with comparisons of data contrasts between bitou bush-free ("control”) and bitou bush-invaded ("impact”) habitats and between geographic localities. A subsidiary impact associated with herbicide application for control of the weed is also examined. Analysis of environmental differences indicates that bitou bush acts as a dampening agent, reducing the degree of seasonal fluctuation in factors such as leaf litter cover. Arboreal Heteroptera were the only group to show consistent evidence of significant differences in taxon richness or abundance between control and impact treatments within a locality, seen as a disruption of normal seasonal variation in diversity in bitou bush-impacted sites. Significant differences between geographic localities were more common, suggesting an effect at broader spatial scales. Evidence for arthropod assemblages characteristic of specific vegetation types was detected for several groups, as were changes in arthropod assemblage composition following application of herbicide for bitou bush control. Springer Science+Business Media, Inc., 2006 α diversity nationallicence Arthropod biodiversity nationallicence Bitou bush nationallicence Chrysanthemoides monilifera nationallicence Assemblage structure nationallicence Sand mining nationallicence Seasonality nationallicence Species accumulation curves nationallicence Species composition nationallicence Weed invasion nationallicence Wilkie Lance Centre for Biodiversity and Conservation Research, The Australian Museum, 6 College St., 2010, Sydney, NSW, Australia aut Cassis Gerasimos Centre for Biodiversity and Conservation Research, The Australian Museum, 6 College St., 2010, Sydney, NSW, Australia aut Gray Michael Centre for Biodiversity and Conservation Research, The Australian Museum, 6 College St., 2010, Sydney, NSW, Australia aut Biological Invasions Kluwer Academic Publishers 9/4(2007-06-01), 477-498 1387-3547 9:4<477 2007 9 10530 https://doi.org/10.1007/s10530-006-9055-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10530-006-9055-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wilkie Lance Centre for Biodiversity and Conservation Research, The Australian Museum, 6 College St., 2010, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Cassis Gerasimos Centre for Biodiversity and Conservation Research, The Australian Museum, 6 College St., 2010, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Gray Michael Centre for Biodiversity and Conservation Research, The Australian Museum, 6 College St., 2010, Sydney, NSW, Australia aut NATIONALLICENCE 773 0- Biological Invasions Kluwer Academic Publishers 9/4(2007-06-01), 477-498 1387-3547 9:4<477 2007 9 10530 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer