All of these finches, from the Galapagos Islands, have different shaped beaks. They are an adaptation to gain access to
1.Shelter
2.Food
3.Mates
4.Water

They formed the oceans.  as they melted water was formed and the water made the oceans

The rate that would change would be the  searching efficiency/attack rate. there are only two other rates in this model: the  growth rate of prey, and the  predator or consumer mortality rate.the  searching efficiency/attack rate is what indicates how effectively can a predator capture its prey whether in the searching process or actual capturing/attacking process.