sentences:  Though only 1534 breeding territories found firsthand, only some parts of the range were surveyed.According to Russian and Kazakh studies, cattle grazing in taiga forest edge appeared to benefit imperial eagles since they encourage habitat for prey, especially ground squirrels.In Kazakhstan moister conditions, possibly correlated with climate change seems to have increased populations of yellow ground squirrels and 2nd growth trees which both are likely to have caused a localized increase there.