To Sum Up

Throughout this blog I have demonstrated the impact invasive/introduced species can have on an area.  I’ve discussed the Can toad and how this amphibian has/is rapidly sweeping across Australia assisting in the decline of population numbers but unlike many have claimed, the Cane toad is not responsible for the extinction of any specific specie.  In addition, the presence of the Cane toad is also driving the evolution of some Australian snakes as they deal with the presence of the Cane toad.

I’ve discussed my personal, frequent experience with an invasive weed commonly known as Broom.  This weed spreads almost just as fast as the time it takes for you to remove its presence in the first place.  This weed is a great example for having a competitive advantage over the native vegetation in the area.  Not only is this plant known for outcompeting but it is also known to have effects on the native fauna.  This plant can be poisonous if ingested by cattle for example.  Broom also blocks pathways and corridors for smaller species.  Large amounts of money and time are invested each year in managing this plant.

The feral pig in Australia is known for destroying habitat among other things.  The Camel although providing a source of economic income and not only a cost has its own impact in their environments often consuming native vegetation and destroying habitats and fence lines. 

I am still interested in researching this topic of invasive species to learn more about the consequences especially possible positive consequences introduced species may have on the environment.  I feel there is so much more to be learned in this area of study.