We. Magnusson et al., HOME-RANGE SIZE AND TERRITORIALITY IN BOLOMYS-LASIURUS (RODENTIA, MURIDAE) IN AN AMAZONIAN SAVANNA, Journal of tropical ecology, 11, 1995, pp. 179-188
Bolomys lasiurus is the only species of rodent commonly found in the s
avanna of Alter do Chao, central Amazonia. Peak densities during 42 mo
nths were less than have been reported from the cerrado biome of centr
al Brazil. However, the population at Alter do Chao appears to be more
stable than those in other areas and we never recorded zero densities
. Many animals were captured over periods greater than 7 months, indic
ating that either mortality or dispersal was less than in previous stu
dies. Mean home-range size of females was inversely related to the pro
portion of females that were gravid or lactating. Female home ranges w
ere mutually exclusive and averaged 35% (SD = 8.2%) of male home range
s. Male home ranges overlapped extensively. Indices of home-range size
varied seasonally and among years.