Local and landscape effects on spatial patterns of mangrove forest during wetter and drier periods: Moreton Bay, Southeast Queensland, Australia

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Title Local and landscape effects on spatial patterns of mangrove forest during wetter and drier periods: Moreton Bay, Southeast Queensland, Australia
Author Eslami-Andargoli, Leila; Dale, Patricia Ellen; Sipe, Neil Gavin; Chaseling, Janet
Journal Name Estuarine, Coastal and Shelf Science
Year Published 2010
Place of publication United Kingdom
Publisher Elsevier
Abstract Land use/cover and mangrove spatial changes were assessed for ten sites and their sub-catchments inSoutheast Queensland, Australia. Two time periods were involved: 1972 -1990, a period of relatively high rainfall, and 1990-2004, which was significantly drier. Aerial photographs and Landsat satellite imagerywere used to map the inter-tidal wetlands and classify the land use/cover in the sub-catchments. A Maximum Likelihood Classification was used to map three types of land cover: agriculture, built-up andplantation forest. Mangroves (mainly Avicennia marina) were the focus as they have been recorded over recent decades encroaching into salt marsh. The Mangrove-Salt marsh Interface (MSI) Index was developed to quantify the relative opportunity for mangroves to expand into salt marshes, based on the shared boundary between them. The index showed a consistent relationship with mangrove expansion and change. To address problems of high dimensionality and multi-collinearity of predictor variables,Partial Least Squares Regression (PLSR) model was used. A key finding of this research was that the contribution of environmental variables to spatial changes in the mangroves was altered following a reduction in rainfall. For example, agriculture had more influence on mangrove expansion and change during the wet period than during the dry period.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.ecss.2010.05.011
Volume 89
Issue Number 1
Page from 53
Page to 61
ISSN 0272-7714
Date Accessioned 2010-08-31
Date Available 2010-10-06T06:56:23Z
Language en_AU
Research Centre Griffith Health Institute; Urban Research Program
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Environmental Monitoring
URI http://hdl.handle.net/10072/34413
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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