Effects of bird predation on canopy arthropods in wandoo Eucalyptus wandoo woodland
MetadataShow full item record
As top predators, birds may have significant effects on arthropod abundances and affect the trophic structure of arthropod communities through predation of lower order predators (e.g. spiders) and by competition for prey. We investigated the effects of bird predation on canopy arthropods in south-western Australia by using plastic bird mesh to exclude insectivorous birds from the foliage of wandoo Eucalyptus wandoo saplings. Exclosure resulted in an increase in the number of herbivorous and predatory arthropods. Total arthropods (with and without ants), spiders, adult Coleoptera, and larval Lepidoptera were significantly more abundant on meshed than unmeshed saplings. All size-classes of arthropods, taxa grouped, were more abundant on meshed than unmeshed saplings, but with no evidence of a disproportionate increase of the largest arthropods on meshed saplings.
Reference Number: #J94
PDF file is also available from Jonathan Majer Email: J.Majer@curtin.edu.au
Please cite the Reference number (as above)
Showing items related by title, author, creator and subject.
The effects of reducing bird predation on canopy arthropods of marri (Eucalyptus calophylla) saplings on the Swan Coastal Plain, Western AustraliaEvelegh, N.; Majer, Jonathan; Recher, H. (2001)The effect of bird predation on canopy arthropods inhabiting Marri (Eucalyptus calophylla) saplings was examined in Banksia woodland on the Swan Coastal Plain of Western Australia. Twenty pairs of saplings were selected ...
Oil mallee plantings and arthropod biodiversity in the Western Australian wheatbelt : effects of host species, nutrition, and leaf chemistryLyons, Anita Marie (2008)Since European settlement, around 93% of the Western Australian wheatbelt has been cleared for agriculture, leading to a range of environmental problems, including erosion, salinity, and loss of biodiversity. Recently, ...
Variation in bird assemblages and their invertebrate prey in eucalypt formations across a rainfall gradient in south-west AustraliaMajer, Jonathan; Recher, H.; Norwood, C.; Heterick, Brian (2017)Our previous work has shown how invertebrate food resources influence usage of tree species by birds. Using data from Western Australian forests and woodlands, we extend the findings to indicate how the avifauna is ...