coral

Population trends

Use the resources below to analyze the current population trends of your keystone species. 

Consider the following questions:

1. Is the population of your keystone species changing over time?
   
   
2. If your keystone species population is changing over time, for how long has it been changing? 
   
   
3. Is the population changing in certain parts of the Earth? Or, is it occurring everywhere?

                Data Set #1                          Data Set #2