Unfortunately, I cannot answer your question without more context. I need to know what shape 2 represents and what it has to do with the population of lynx. Please provide more information so I can give you a more accurate answer.
If you are asking about a specific graph or diagram, please provide a description of the graph or diagram and the labels for the axes. If you are asking about a general concept, please provide more details about what you are looking for.
I can also provide you with information about lynx populations in general, or about the factors that affect lynx populations. However, I cannot answer your question specifically without more information about what you are asking.