Increasing of the population by refugees invasion puts under constraint the process of Gueckedou's sustainable development. This area is passing through a dramatic damage upon its forest because of surexploitation of Sierra Leonai and Liberian refugees and native's population. Comparatively refugees are majority and natives the minority. So concerning the management of their resources, they don't have any responsibility. This is opposite to Rio summit objectives. Agenda 21 recommends to all governments that local populations' participation is essential to attend sustainable development. An inquiry made in Gueckedou's region shows that Kissi natives have many possibilities to be involved in their forests' management. That means traditional structures which can help to participate in development process are weakened by cultural identity crisis from the fact of Kissi's "minorization" due of refugees' invasion. Because those structures are prohibited by the administration contributes to weaken them. So, to reach a better management of resources in Gueckedou prefecture, it will be useful to restore traditional structures before they disappear. They would be a good opportunity for the Kissi native to participate actively in laws application about forest resources management.

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Uma notata in the Mohawk Dunes had population densities in good habitat of 15-17 lizards/ha. Testis volumes peaked in April-May and declined to low levels by August. Egg production peaked in May during 1995 but did not occur in spring 1996. Minimum convex polygon home range estimates were 530 (±70 SE) m² for 2 adult males and 228 (±82) m² for 8 adult females. Adjusted for sample size bias, these estimates were 994 (±422) and 774 (±302) m², respectively. Subadults had smaller home ranges. Uma notata actively used perennial plants as escape cover, preferentially selecting Ambrosia dumosa. I found significant use of plant materials in Uma notata diet with both ontogenetic and seasonal shifts in proportions of plant items. Their diet included 65 taxa of arthropods from 39 families, along with 13 plant species in 7 families. I also studied survival rates, tail loss, substrate selection, and thermal effects.