BIO120H1 Lecture 21: Lecture 21
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BIO120H1 Full Course Notes
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Document Summary
The graph of the pika dynamics is about the fraction of the occupancy of pikas. In the northern patch, things are going well. They maintain a continuous presence and the percentage occupancy is 70 percent. In the middle network, there are not doing as well as they"re occupancy is patchy. The percentage is cyclic and is sown by 10 percent. In the southern network, they start out well but decline over the years. Northern trait has stable occupancy as it doesn"t have an upward or downward trend. In the middle, it is stable but the percentage occupancy is lower as the bands are lower than those of north. The southern one is unstable as it has fewer black lines. This is because they go to extinction and disappear. Andy erected barriers (banning immigration between patches) to examine this. The north one reacted to this by doing ne. The middle patch goes from being low to going immediately extinct.
