Wildlife displacement, increase of contaminant loads downstream and surrounding superficial soil contamination are negative impacts of state roads and timber industry: a case study in Bunbury, Western Australia
No hay miniatura disponible
Fecha
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
FAO ;
Resumen
Descripción
Roads are considered as the most harmful anthropic impacts, producing high contaminant loads to water, soil and subsequently, biosphere, and causing habitat fragmentation for wildlife. The forest-dependent species are more vulnerable when home ranges concentrate on remanent vegetation patches. Accordingly, this study assesses the displacement behavior of three endemic species (Trichosurus vulpecula, Pseudocheirus occidentalis, and Phascogale sp), contaminant load to the surface soil of the remanent vegetation patch and contaminant load downstream to the closest stream from a national road and a timber processing factory. The wildlife displacement data were analyzed through a linear regression model. The surface soil chemistry was determined among 25 variables: and for the water chemistry, 12 variables. The normality test for the water and soil chemistry data was Shapiro-test, t-test for means comparison, and Cohen’s d for the effect size. The trend line demonstrated a positive relationship between the distance to the contaminant sources and the fauna presence. The concentration of Ba/Ca/Ce/Cr/Fe/Nd, and Sr in soil chemistry, and the concentrations of Ca/K/Na/Rb and S, in water chemistry, had different means and large effect (p-value<0.05, Cohen’s d>0.8), evidencing accumulative and negative impacts to the environment (plan-water-soil interactions) caused by the national road, and timber industry.
Keywords: Trichosurus vulpecula, Pseudocheirus occidentalis, and Phascogale sp, Timber Processing.
ID: 3482694