Staking a claim is the physical act of marking territory (by driving marked stakes into the ground) over which you have a claim of mineral or other usage rights. It can be metaphorically extended to the sense of “calling dibs” on things. The term is likely to be a more common and intuitive phrase in areas that have a significant prospecting or mining tradition that evolved under descendants of legal system. Staking is asserting exclusive rights which may be granted de jure if there are no existing countervailing claims over the same land. What are the rights you have claimed and what are their obligations?

What is better phrased as having a share in a stake where the stakes mean a gambling or investment pool, or the expected returns on that pool.