California is a wonderful place to live, the attractions offered to residents are endless and people all over the world dream of living in California but humans aren’t the only species migrating to the golden state. On a daily basis, our environment is invaded by unwanted guests who wreak havoc on our ecosystems. The effects of human carelessness are taking over our environment at an alarming rate. The impact the human species has done to alter the planet is drastic and is evident through the environmental consequences that conscious people see today. Human growth, expansion, and sprawl has spread throughout all continents and with this continuous growth, biological invasions have increasingly manipulated existing natural ecosystems. There are various ways invasive species have altered landscapes from the every day rise of synthetic pollutions, which leave species and ecosystems little opportunity to adapt. With the subsequent effects on nature, the destruction and loss of plants and animals has become ecologically and economically damaging and unfortunately, will continue to worsen.

Increased human population density has created an increase in international travel and trade, and with it an increase in production. Human behavior is dependent on production which enhances the spread of invasive behavior. Most of today’s society would describe an invasive species as a weed in their garden, or the mice in their attic, but a biological invasion is a complex relationship between human behavior and the effects it leaves on the environment and its native communities. As defined, a bioinvasion is the rapid expansion of a species into regions where it had not previously existed, often as a result of human agency. Bioinvasions are taking a toll on all territories of the world. Also referred to as invasive alien species, bioinvasions are a serious threat to habitat loss and generally become noteworthy when damage has already taken place. One of the more prominent bioinvasions takes place in our oceans. There are an endless amount of species in our waters and millions more unaccounted for. Many marine ecosystems are vulnerable to damage and countries around the world are recipients of unwanted visitors each year. The overall health of a marine species is dependent on its interaction with the condition of the environment. With rising temperatures, we are already seeing a loss of the sea-ice habitat with polar bear populations decreasing at alarming rates.

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