Dendroecological Studies with Cedrela odorata L., Northeastern Brazil

Climate-growth relations of congeneric tree species vary across a tropical vegetation gradient in Brazil

“…5 and 6;Appendix Fig S3) indicate that growth synchronicity is driven by water availability Brienen et al, 2016;López et al, 2019;Schöngart et al, 2017). Precipitation effects at our dry-forest site are similar to those obtained in other dry-forest studies Lisi et al, 2020;López et al, 2019;López and Villalba, 2020), while at our evergreen-forest site precipitation effects were stronger than those found at similar forest types (Fontana et al, 2018;Granato-Souza et al, 2018). These higher growth correlations suggest a stronger growth response to climate variability, and/or a higher interannual variability (IAV) in climate in our study region.…”

“…S8), as the savannah and evergreen forest sites are under stronger influence of the Intertropical Convergence Zone (ITCZ) than the dry-forest site (Andrade et al, 2017). The relationship between chronologies and precipitation (per genus and per location -Appendix Tables S3 and S4) corroborates that local climate is the main driving factor of these differences Babst et al, 2019;Lisi et al, 2020;López et al, 2019). These results also suggest that congeneric species can be used in comparative studies along environmental gradients as their growth IAV (Appendix Tables S3 and S4) does not differ within and between the genera (Locosselli et al, 2013).…”

“…In conclusion, we proved the annual formation of tree rings for six species along a vegetation gradient in northeastern Brazil and showed their potential for the development of chronologies. Growth responses in the different types of seasonal forests (evergreen forestsavannahdry forest) suggest that seasonal water availability is the main limiting factor of tree growth Babst et al, 2019;Lisi et al, 2020;López et al, 2019) and that tree growth is under strong modulating effect of global climatic phenomena such as El Niño events (Jimenez et al, 2019). Dry forests were the ones with the highest growth sensitivity to drought, and may therefore be more vulnerable to the effects of climate change (Allen et al, 2017;Brodribb et al, 2020).…”

“…Ring-width chronologies for the dry forest species were not correlated to those of the other two sites. This lack of synchronicity points to differences in climate-growth responses across the vegetation types Babst et al, 2019;Lisi et al, 2020;López et al, 2019). It could also relate to differences in the synchronicity of precipitation variability between the dry-forest site and the two other sites (Appendix Fig.…”

The Climate Change Influence on Cedrela odorata L. Radial Growth in the Amazon

“…Regions with well-defined seasonality such as this may impact the demarcation of growth rings due to the variation in rainfall over the year [30]. C. odorata growth, as seen in Figure 4A, did not show correlation with precipitation.…”