Please use this identifier to cite or link to this item:
Title: Species diversity and structure of phytophagous beetle assemblages along a latitudinal gradient: Predicting the potential impacts of climate change
Contributor(s): Andrew, Nigel R (author)orcid ; Hughes, Lesley (author)
Publication Date: 2004
DOI: 10.1111/j.0307-6946.2004.00639.x
Handle Link:
Abstract: 1. Assemblages of phytophagous beetles on 'Acacia' were examined along a 1150km latitudinal gradient in eastern Australia to investigate the potential effects of climate change on insect communities. The latitudinal gradient was used as a surrogate for differences in temperature. Several possible confounding variables were held constant by selecting comparable sites and emphasising a single host-plant species. 2. Total species richness increased towards the tropics, but there were no significant differences among latitudes for average species density, species richness, Fisher's a, or average Chao-1 index. 3. Beetles sampled along the gradient were classified into four 'climate change response' groups, depending on their latitudinal range and apparent host specificity: 'cosmopolitan' species, 'generalist feeders', 'climate generalists', and 'specialists'. These four groups might respond differently to shifting climate zones. 'Cosmopolitan' species (22% of community, found at more than one latitude and on more than one host plant) may be resilient to climate change. 'Generalist feeders' (16%, found only at one latitude but found on more than one 'Acacia' species) may well feed on several species but will have to move with their climatic envelope. 'Climate generalists' (6%, found only on 'Acacia falcata' but found at more than one latitude) may be constrained by the host species' ability to either cope with the changing climate or move with it. Finally, specialists (55%, found only on 'A. falcata' and at only one latitude) may be forced to move poleward concurrently with their host species, or go extinct. 4. The analyses indicate that community structure may be fairly resilient to temperature change. The displacement or local extinction of species, especially the species that are found at only one latitude and on only one host plant, however, may lead to significant changes in community composition.
Publication Type: Journal Article
Source of Publication: Ecological Entomology, 29(5), p. 527-542
Publisher: Blackwell Publishing
Place of Publication: England, United Kingdom
ISSN: 0307-6946
Field of Research (FOR): 060208 Terrestrial Ecology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Statistics to Oct 2018: Visitors: 106
Views: 105
Downloads: 0
Appears in Collections:Journal Article

Files in This Item:
2 files
File Description SizeFormat 
Show full item record


checked on Nov 26, 2018

Page view(s)

checked on Feb 8, 2019
Google Media

Google ScholarTM





Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.