Cambial Growth Periodicity Studies of South American Woody Species – A Review

Callado, Cátia Henriques; Roig, Fidel A.; Tomazello-Filho, Mário; Barros, Cláudia Franca

doi:10.1163/22941932-00000019

Cited by 49 publications

(44 citation statements)

References 49 publications

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“…Furthermore, besides external cues, intrinsic plant rhythms are likely to play some role in governing cambial activity (e.g. Callado et al 2013;Villalba 1985). This shows that identifying the trigger factor for growth rhythms in tropical trees is not always straightforward, as different tropical tree species respond to different cues (Borchert et al 2015), and there could also be differences in response between sub-populations of the same species (e.g.…”

Section: Introductionmentioning

confidence: 99%

Does Cedrela always form annual rings? Testing ring periodicity across South America using radiocarbon dating

Baker

Santos

Gloor

et al. 2017

Trees

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Key Message Radiocarbon dating shows that Cedrela trees from Bolivia, Ecuador and Venezuela form one ring per year but Cedrela trees from Suriname form two rings per year. Abstract Tropical tree rings have the potential to yield valuable ecological and climate information, on the condition that rings are annual and accurately dated. It is important to understand the factors controlling ring formation, since regional variation in these factors could cause trees in different regions to form tree rings at different times. Here, we use 'bomb-peak' radiocarbon ( 14 C) dating to test the periodicity of ring formation in Cedrela trees from four sites across tropical South America. We show that trees from Bolivia, Ecuador and Venezuela have reliably annual tree rings, while trees from Suriname regularly form two rings per year. This proves that while tree rings of a particular species may be demonstrably annual at one site, this does not imply that rings are formed annually in other locations. We explore possible drivers of variation in ring periodicity and find that Cedrela growth rhythms are most likely caused by precipitation seasonality, with a possible degree of genetic control. Therefore, tree-ring studies undertaken at new locations in the tropics require independent validation of the annual nature of tree rings, irrespective of how the studied species behaves in other locations.

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Section: Introductionmentioning

confidence: 99%

Does Cedrela always form annual rings? Testing ring periodicity across South America using radiocarbon dating

Baker

Santos

Gloor

et al. 2017

Trees

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“…However, in tropical trees, the growth rings are usually less evident because the wood anatomy is much more complex and variable (Stahle 1999;Détienne 1989). In tropical trees growth rings are apparently restricted to some species growing in seasonal climates (Worbes 1995(Worbes , 1999Botosso and Tomazello-Filho 2001;Callado et al 2001Callado et al , 2013. Thus, it is expected that growth ring markers in tropical trees rarely represent annual rhythms.…”

Section: Introductionmentioning

confidence: 99%

“…The cambium activity and stem growth are potentially affected by temperature, photoperiod and precipitation (Fahn et al 1981;Botosso and Tomazello-Filho 2001;Callado et al 2001Callado et al , 2013. Climate affects the endogenous metabolism of plants (Lüttge and Hertel 2009) and causes inter-annual variations in limiting resources such as water, light and nutrients, affecting plant growth (Billings 1952;Campos 1970;Lamprecht 1990;Worbes et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Stem growth rhythms in trees of a tropical rainforest in Southern Brazil

Shimamoto

Botosso

Amano

et al. 2015

Trees

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Key message We demonstrate that tropical trees growing in wet climates can have a marked seasonality in cambium activity and stem growth associated with high temperature and day length of summer. Abstract Monitoring the rhythm of tree growth associated with the growth rings can contribute substantially to understanding forest dynamics and the management of tropical forests. In this study, we monitored the girth increment rhythm and described the wood characteristics (anatomy of growth rings, wood specific gravity) in 10 tropical tree species (103 individuals) naturally occurring in a wet and weakly seasonal region of Atlantic Forest in southern Brazil. We aimed to verify whether tree growth dynamics are associated with climate and woody anatomy in tropical trees with contrasting ecological characteristics. We installed permanent dendrometer bands and monthly assessed the girth increment for 22 months. We collected wood samples (non-destructive method), measured wood specific gravity and prepared permanent slides to characterize the growth ring markers. We found growth rings in all species (distinct in six species); deciduous species produced more distinguishable tree rings compared with semi-deciduous and evergreen tree species. Species varied in their accumulated girth growth (in average, from 1.83 to 62.64 mm), growth rates (1-15 %), and annual radial increment (0.16-5.44 mm). Girth increment was positively related to temperature and day length in five out of ten tree species, indicating the possible effects of these climatic variables in triggering cambial activity in these species. The growth pattern varied among species and was marginally associated to the tree deciduousness. We concluded that even in wet and less seasonal climates, there can be an association in the cambium activity and stem growth with the hotter and longer days of summer months.

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“…In hardwood tree species the activity of the cambial meristem is usually related to the growth ring width, parenchyma bands and diameter and distribution of vessels; in conifers with tracheid length, wall thickness and diameter. The growth rings identified in tropical hardwood tree species presented distinct wood anatomical structure from those occurring in temperate climate, as a result of the genetic and adaptation features as well as due to the magnitude of climatic differences between the growing seasons CALLADO et al, 2013CALLADO et al, , 2014.…”

Section: Introductionmentioning

confidence: 98%