1/7/2024 0 Comments February precipitation totals![]() cearensis tree growth is not only sensitive to the moisture balance of the growing season, it can also record subtle differences in regional precipitation trends across the dry to humid forest transition. However, the chronologies from the dry Chiquitano forests of southern Bolivia reflect the regional reduction in precipitation during recent decades, while the chronologies from the tropical lowland moist forests in the north capture the recent increase in precipitation in the southern Amazon basin. cearensis tree-ring chronologies are positively correlated with precipitation and negatively with temperature during the late dry-early wet season, the classic moisture response seen widely in trees from dry tropical and temperate forests worldwide. The interannual variations in all four A. cearensis were compared with temperature and precipitation records available in the region. Four well-replicated chronologies (16 to 21 trees, 22 to 28 radii) of A. In this work, annual growth rings of Amburana cearensis, a widely distributed tropical tree species, were employed to estimate temporal and spatial patterns of climate variability in the transition from the dry Chiquitano (16-17°S) to the humid Guarayos-southern Amazon (14-15°S) forests. However, the temporal and spatial climate signals in these tropical chronologies is less well known. Numerous ring-width chronologies from different species have recently been developed in diverse tropical forests across South America.
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