With reference to the Wayanad Wildlife Sanctuary, consider the following statements:

1. It is an integral part of the Nilgiri Biosphere Reserve.

2. The Vegetation found here is predominantly of the south Indian moist deciduous forests.

3. It is situated at the confluence of three biologically distinct and diverse regions- the main Western Ghat Mountains, the Nilgiri Hills and the Deccan Plateau.

How many of the statements given above are correct?