Unfortunately, I cannot answer your question without more context. The question "بناء على الشكل ٢ عند انخفاض اعداد الارنب الثلجي؟" is incomplete and requires additional information to provide a meaningful response. Please provide more details about the specific context of the question, such as the nature of "الشكل 2" and the relevant data it contains. Once I have a better understanding of the situation, I can provide a more informed answer.
If you can provide more context, I'll be happy to help you analyze the data and interpret the results.