Which of the following are factors that prevent migrating tree species from thriving in their new, more northerly habitats?

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All of the factors listed can prevent migrating tree species from thriving in their new, more northerly habitats. Deer can overbrowse young trees, leading to stunted growth and reduced survival. Summer water deficits can limit tree growth and cause stress. Beetle infestations can kill large numbers of trees, especially if the trees have not evolved natural mechanisms to defend against the beetles. Dry conditions which favor intense fires can also reduce tree populations or prevent new trees from establishing.

Which of the Following Are Factors That Prevent Migrating Tree