Given below are two patterns of ecological succession. Four species are represented by A, B, C and D. An arrow indicates “is replaced by”
In the context of ecological succession, which of the following statements is INCORRECT with respect to the figures given above.
1
Model – X represents facilitation model and Model - Y represents tolerance model.
2
Model – X represents tolerance model and Model – Y represents inhibition model.
3
As per Model – Y, C can out-compete B but can also invade a habitat in their absence.
4
As per the Model – X, A makes the environments more suitable for B to invade.