Wealth, household heterogeneity and livelihood diversification of Fulani pastoralists in the Kachia Grazing Reserve, northern Nigeria, during a period of social transition.

Block membership, a variable linked to geographical location, showed marginal significance, but did not demonstrate a better fit (with a delta AIC 0.8 in the model based 121 households with complete data).

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Introducing a quadratic term (also highly significant) improved relationship fit, increasing the total amount of variance explained by ~10%.

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