Are the organisms of Bowker Creek the same as the past?

In the past, Bowker Creek had many more Riparian ecosystems and organisms within it. However, now that we have been urbanizing the environment around the creek even fewer Riparian species have been visible.  Bowker Creek used to be a large, functional stream with many diverse organisms. It was a source of food and water for…Are the organisms of Bowker Creek the same as the past?