Final answer:
Habitat space is likely to be more plentiful in Area B due to competition and migration scenarios impacting population sizes and thus the availability of space.
Step-by-step explanation:
The question you're asking pertains to which resource is likely to be more abundant in Area B than in Area A given several scenarios related to species competition and survival. After reviewing the provided statements, it seems that habitat space is most likely to be more plentiful in Area B. Based on the information, Species A and B have overlapping needs for food and nesting space which could lead to competition. In scenarios where two species have similar dietary habits or require similar nesting areas, it can lead to one species outcompeting the other, thus impacting their population sizes adversely in Area A. If species B increases in population due to the overlapping needs for food and nesting space (as stated in scenario b), and if only one species is expected to survive due to these overlapping needs (as indicated in scenarios c and d), then the availability of habitat space is likely to be higher in Area B. This is because if species A migrates or dies off, it would leave more space available for other organisms, and since species B's population remains the same, it would not fully occupy the available habitat space, leading to an increase in available habitat space in Area B.