Hydrological and land use determinants of Eucalyptus camaldulensis occurrence in floodplain wetlands

Kath, Jarrod and Le Brocque, Andrew and Leyer, Ilona and Mosner, Eva (2014) Hydrological and land use determinants of Eucalyptus camaldulensis occurrence in floodplain wetlands. Austral Ecology: a Journal of Ecology in the Southern Hemisphere, 39 (6). pp. 643-655. ISSN 1442-9985

Abstract

Hydrological and land use changes can affect species in human altered landscapes. Typically the impacts of hydrological and land use changes are examined separately, with hydrological determinants used to explain the distribution of species in water dependent and aquatic habitats and land use factors used to examine terrestrial species. However, given the connectedness of aquatic and terrestrial habitats, stressors originating in one domain may be important in the other. To explore the importance of integrating both hydrological and land use factors, we tested the relative contribution of hydrological factors and land use context as determinants of the dominant riparian tree species, Eucalyptus camaldulensis Dehn. throughout wetlands of the Condamine catchment, southern Queensland, Australia. The occurrence of E. camaldulensis was modelled against hydrological and land use factors using generalized linear models (GLMs) and validated using internal bootstrapping procedures. Validated models which included both hydrological (distance from weir, wetland–river connectivity and groundwater depth)and land use factors (agricultural land cover and grazing intensity) performed better than those developed using only hydrological factors. The study results highlight the importance of an integrated perspective which considers both hydrological and land use factors in order to understand occurrence patterns of riparian and floodplain tree species in a range of settings. This approach could be especially important when assessing changes to hydrology and
land use which may be triggered by climatic changes.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2014 Ecological Society of Australia. Permanent restricted access to Published version due to publisher copyright policy.
Faculty / Department / School: Current - USQ Other
Date Deposited: 04 Jul 2014 06:20
Last Modified: 16 Mar 2015 01:56
Uncontrolled Keywords: E. camaldulensis; floodplain; grazing; groundwater; wetland; integration
Fields of Research : 06 Biological Sciences > 0602 Ecology > 060204 Freshwater Ecology
06 Biological Sciences > 0602 Ecology > 060202 Community Ecology(excl. Invasive Species Ecology)
05 Environmental Sciences > 0501 Ecological Applications > 050104 Landscape Ecology
Socio-Economic Objective: D Environment > 96 Environment > 9608 Flora, Fauna and Biodiversity > 960807 Fresh, Ground and Surface Water Flora, Fauna and Biodiversity
D Environment > 96 Environment > 9608 Flora, Fauna and Biodiversity > 960806 Forest and Woodlands Flora, Fauna and Biodiversity
D Environment > 96 Environment > 9613 Remnant Vegetation and Protected Conservation Areas > 961305 Remnant Vegetation and Protected Conservation Areas in Farmland, Arable Cropland and Permanent Cropland Environments
Identification Number or DOI: 10.1111/aec.12126
URI: http://eprints.usq.edu.au/id/eprint/25013

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