Foliage dynamics, leaf traits, and growth of coexisting evergreen and deciduous trees in a tropical montane forest in Ethiopia

Seyoum, Yigremachew; Fetene, Masresha; Strobl, Simone; Beck, Erwin

doi:10.1007/s00468-012-0723-6

Cited by 17 publications

(18 citation statements)

References 45 publications

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“…Additionally, leaves with lower SLA have more structural carbohydrates for support and likely fewer living tissues 36 , phosphorus in leaves may be more “diluted”, leading to an overall lower leaf nutrients of evergreen species 37 . All in all, leaves of deciduous species have functional syndroms implying a low construction cost, whereas the contrasting functional syndroms of the evergreen species suggesting a high construction cost 23 . Deciduous trees acquire available resources rapidly and have high growth rates but use tissues that are prone to damage.…”

Section: Discussionmentioning

confidence: 96%

“…Deciduous and evergreen species can have fundamentally different physiology, which can be reflected in plant trait syndromes 22 . Deciduous species have commonly short-lived leaves while evergreens have coriaceous leaves with greater longevity 23 . Previous research has found that deciduous woody species show higher relative growth rates, higher SLA, and higher photosynthetic rates than evergreen species 24 – 26 .…”

Section: Introductionmentioning

confidence: 99%

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Functional recovery of a subtropical evergreen-deciduous broadleaved mixed forest following clear cutting in central China

Huang

Zhang

Zang

et al. 2018

Sci Rep

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Ecosystem functioning is largely dependent on the functional traits of its component species. Most of the previous researches on ecosystem recovery have mainly focused on taxonomic composition but less attention is concentrated on functional community composition. Here, we examine the dynamic trend of functional community composition along a recovery chronosequence following clear cutting in subtropical evergreen-deciduous broadleaved mixed forest. Results showed that with the process of recovery, the functional composition changed from a community with high specific leaf area (CWM_ SLA), leaf nitrogen concentration (CWM_ LNC) and leaf phosphorus (CWM_ LPC) but low leaf thickness (CWM_ LT) and stem tissue density (CWM_ STD) to that with low CWM_ SLA, CWM_ LNC and CWM_ LPC but high CWM_ LT and CWM_ STD. Functional traits of evergreen and deciduous species were significantly different in each stage. Light availability and soil phosphorus were the most important influencing factors during the recovery. Our study suggests that the subtropical evergreen-deciduous broadleaved mixed forest is gradually shifting from a resource acquisitive to a resource conservative assemblage, in which evergreen species will become more and more dominant. Any management or conservation planning upon the forest ecosystem should integrate this dynamic trend of functional change.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Functional recovery of a subtropical evergreen-deciduous broadleaved mixed forest following clear cutting in central China

Huang

Zhang

Zang

et al. 2018

Sci Rep

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“…However, we can also observe in P. nitida leaf fall pattern variability as shown by Nicolini et al (2012) and Mangenet (2013). So, this variability necessarily involves the influence of other factors than the seasonality of the precipitation alone, such as soil and microclimatic conditions (Reich and Borchert 1982;Singh and Kushwaha 2005;Valdez-Hernández et al 2010;Cardoso et al 2012) or physiological factors like internal clock (Yàñez-Espinosa et al 2006;Williams et al 2008;Lüttge and Hertel 2009;Seyoum et al 2012). For example, Brousseau et al (2013) showed the existence of an individual variability of the leaves' photosynthetic efficiency that could allow the faster realization of the foliar phenological cycle which could be a rational explanatory factor of the variation of the length cycle.…”

Section: Discussionmentioning

confidence: 99%

Seasonal variations in phenological traits: leaf shedding and cambial activity in Parkia nitida Miq. and Parkia velutina Benoist (Fabaceae) in tropical rainforest

Morel

Mangenet

Beauchêne

et al. 2015

Trees

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International audienceStudies on the periodicity of wood formation provide essential data on tree age and factors related to the control of tree growth. The aim of this work was to investigate the cambial phenology and its relation with leaf phenology and climatic seasonality in two tropical rainforest species belonging to the genus Parkia known for having a contrasted leaf phenology. From wood samples collected at 15 day intervals from April 2009 to February 2012 in five trees of both species, we quantified cambial activity by counting layers of cells in cambial zone, enlarging cells zone and wall thickening cells zone from wood prepared anatomical micro sections. In the same time, we observed leaf shedding behaviors in the crown of the studied trees. In both species, cambial activity was significantly reduced during leafless period. However, the cambial activity of P. velutina was not affected by seasonality while in P. nitida, we found a significant positive effect of the dry season on cambial activity. This diminution of activity associated to leaf shedding occurred annually during the dry season in P. nitida whereas the trees were not synchronous in time for P. velutina. On the contrary that is often admitted, the rest cambial period can be independent of environmental restriction such as dry season. Leaf phenology remains the best proxy to estimate cambial activity

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“…() and Seyoum et al . (), cambial activity in the broadleaved deciduous C. macrostachyus normally begins with the onset of the long rainy season around June (e.g. 2009).…”

Section: Discussionmentioning

confidence: 99%

Stable carbon isotope labeling reveals different carry‐over effects between functional types of tropical trees in an Ethiopian mountain forest

et al. 2013

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SummaryWe present an intra-annual stable carbon isotope (d 13 C) study based on a labeling experiment to illustrate differences in temporal patterns of recent carbon allocation to wood structures of two functional types of trees, Podocarpus falcatus (a late-successional evergreen conifer) and Croton macrostachyus (a deciduous broadleaved pioneer tree), in a tropical mountain forest in Ethiopia. Dendrometer data, wood anatomical thin sections, and intra-annual d 13 C analyses were applied. Isotope data revealed a clear annual growth pattern in both studied species. For P. falcatus, it was possible to synchronize annual d 13 C peaks, wood anatomical structures and monthly precipitation patterns. The labeling signature was evident for three consecutive years. For C. macrostachyus, isotope data illustrate a rapid decline of the labeling signal within half a year. Our d 13 C labeling study indicates a distinct difference in carryover effects between trees of different functional types. A proportion of the labeled d 13 C is stored in reserves of wood parenchyma for up to 3 yr in P. falcatus. By contrast, C. macrostachyus shows a high turnover of assimilates and a carbon carryover effect is only detectable in the subsequent year.

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Foliage dynamics, leaf traits, and growth of coexisting evergreen and deciduous trees in a tropical montane forest in Ethiopia

Cited by 17 publications

References 45 publications

Functional recovery of a subtropical evergreen-deciduous broadleaved mixed forest following clear cutting in central China

Functional recovery of a subtropical evergreen-deciduous broadleaved mixed forest following clear cutting in central China

Seasonal variations in phenological traits: leaf shedding and cambial activity in Parkia nitida Miq. and Parkia velutina Benoist (Fabaceae) in tropical rainforest

Stable carbon isotope labeling reveals different carry‐over effects between functional types of tropical trees in an Ethiopian mountain forest

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