Problem
Mission: You are studying how urbanization influences insect communities in big cities. You know that city parks can be very important places where native insects can thrive, despite being surrounded by inhospitable habitat. The parks in your city differ greatly in size and you want to know if this influences native insect diversity. You decide to test whether larger city parks harbor a higher diversity of native insects.
• Describe an observational or experimental study that you would do to test this hypothesis, making clear how your study is based on the cause and effect. Did you describe an observational or an experimental study?