Writing Assignment

Does road and traffic affect the anuran population

This article is cited from , Quantifying the road-effect zone threshold effects of a motorway on anuran populations in Ontario Canada ' by Felix Eigenbrod , Stephen J . Hecnar , and Lenore Fahrig (2009

Several literatures have already empirically demonstrated the adverse effects of roads and traffic on both animal distribution and abundance (Fahrig and Rytwinski , 2009 . The demonstration of road and traffic effects is important due to its various implications on ecological management . Several authors had found that roads and traffic are major contributors to the global

biodiversity crisis in many animal species (Eigenbrod et . al 2009 , Forman and Alexander 1998 , Trombulak and Frissell 2000 , Coffin 2007

It has been previously shown that traffic can result to direct mortality of species and that road can act as an impediment to species movement The impediment to movement could later results to the creation of barrier , which could , in turn , lead to both population subdivision and resource inaccessibility . Road and traffic are also implicated in the reduction of populations due to habitat loss (Eigenbrod et al , 2009 Jaeger et al , 2005

Furthermore , there is already increasing evidence that noise caused by traffic could lead to auditory or acoustic interference (Eigenbrod et al , 2009 . Acoustic interference occurs when background noise reduces the active distance or the distance over which an acoustic signal can be detected (Parris et al , 2009 . Increase in acoustic interference caused by traffic negatively affect species ' reproductive behavior and success (Warren et al , 2006 ) and...