Object Arrangement
As mentioned before, the objects that Baoba give you may draw out certain Pokemon not normally found in a particular area. An object can draw out Plains Pokemon, Forest Pokemon, Rocky area Pokemon and Water-side Pokemon, or none of the aforementioned, in which case it is there for asthetic purposes only. Rarer Pokemon will start appearing if you place enough objects that meet the requirement for that area; examples of requirements could be 3 Plains objects or 7 Water objects.
Each area keeps a counter of the number of days it has been used. Over time, the objects in a particular area will upgrade in effectiveness towards the requirement. This means that instead of counting as one object, it can count as multiple objects - thus the area requirement is more easily achievable.
For example, if the Savannah Area has been in use for 27 days, then a Plains object placed there will count as 2 Plains objects, a Forest object will count as 2 Forest objects but a Rock object will count as 1 Rock object.
The following is a list of all the objects available.