2016
DOI: 10.1071/bt15283
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Changes in irradiance and soil properties explain why typical non-arboreal savanna species disappear under tree encroachment

Abstract: Savanna vegetation maintains its openness and its diverse plant composition because of frequent fire events; however, when these are suppressed, encroachment is caused by increases in the tree density. In the neotropical savanna (cerrado of Brazil), typical forest trees are invading savanna areas, altering abiotic conditions and affecting the persistence of their exclusive species. Here we studied changes in abiotic conditions, species richness and diversity of a non-arboreal community (herbs, vines, grasses, … Show more

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Cited by 26 publications
(53 citation statements)
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“…As the TS species showed thicker leaves, with anatomical traits that are advantageous to survive under elevated light irradiances (Rossatto et al 2015;Rossatto & Franco 2017), this may imply that they cannot thrive under shaded conditions, which in turn can explain why the diversity of such species drastically decrease from the TS to the FS (Pinheiro et al 2016). The disappearance of such typical savanna species may occur because their set of anatomical leaf traits are not specialized in capturing low and diffuse light; this can drastically affect the carbon balance, probably leading plants to carbon starvation (Sevanto et al 2014).…”
Section: Discussionmentioning
confidence: 99%
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“…As the TS species showed thicker leaves, with anatomical traits that are advantageous to survive under elevated light irradiances (Rossatto et al 2015;Rossatto & Franco 2017), this may imply that they cannot thrive under shaded conditions, which in turn can explain why the diversity of such species drastically decrease from the TS to the FS (Pinheiro et al 2016). The disappearance of such typical savanna species may occur because their set of anatomical leaf traits are not specialized in capturing low and diffuse light; this can drastically affect the carbon balance, probably leading plants to carbon starvation (Sevanto et al 2014).…”
Section: Discussionmentioning
confidence: 99%
“…Plants in dense savanna tended to show intermediate values of leaf thickness. This may be explained by the fact that in the dense savanna, plants from typical and forested savanna communities can co-exist due to the variability of available light niches (Pinheiro et al 2016).…”
Section: Discussionmentioning
confidence: 99%
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