perfect this little article :)Send me a radio if possible, I want to correct my pronunciation Undoubtly yes! Some species die out and some become more and more, your question is about biodiversity in ecology. There are many factors can affect biodiversity, temperature, precipition, disturbance, and so on. The most obvious phenomenon can be realized is pollution. A big city produces so much waste water, exhaust gas and rubbish everyday. Some animals and plants can't bear that, so they run away or disappear. However, some species may enjoy this kind of environment, just like blackbeetle. So the population of them is increasing during urbanization. email: [email protected]