GENETICS OF EUGLOSSINI 541 GENETICS OF EUGLOSSINI BEES (HYMENOPTERA) IN FRAGMENTS OF THE ATLANTIC FOREST IN THE REGION OF VIÇOSA, MG

With uncontrolled deforestation, forest fragments remain, which in most cases are in different stages of regeneration and present isolated populations. In the present study we analyzed the genetic pat-terns of Eulaema nigrita populations in seven Atlantic Forest fragments of different sizes and suc-cessional stages in the region of Viçosa, MG. This was done by RAPD molecular markers. We ob-served that the area of the fragments had no effect on the genetic variability of E. nigrita in the di-rection predicted by meta-population models. Medium-sized well-preserved woods presented the lowest variability, whereas large and small woods were statistically identical. The evidence supports the notion that rural areas present greater dispersal among fragments, implying greater similarity between the populations of fragments located in rural areas when compared to fragments in urban areas