Ecophysiology of six selected shrub species in different plant communities at the periphery of the Atlantic Forest of SE-Brazil

Duarte, Heitor Monteiro; Geßler, Arthur; Scarano, Fábio Rúbio; Franco, Augusto C.; Mattos, Eduardo Arcoverde de; Nahm, Michael; Rennenberg, Heinz; Rodrigues, Pablo José Francisco Pena; Zaluar, Henrique Leão Teixeira; Lüttge, Ulrich

doi:10.1016/j.flora.2005.02.004

Cited by 45 publications

(32 citation statements)

References 57 publications

(84 reference statements)

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“…As with Lins et al (2016), we noted no consistent change in δ 13 C along elevational gradients examined in this work. The average δ 13 C for our data was -29.8‰ and was similar to other investigations of tropical forest species (Vitousek et al 1990, Duarte et al 2005, Ometto et al 2006, Maricle et al 2011). Average δ 13 C for tropical species varies between -26‰ and -30‰ but these numbers are highly arbitrary as leaf age and light irradiance can have dramatic effects (Vitoria et al 2016).…”

Section: Discussionsupporting

confidence: 91%

Stable isotope ratios and reforestation potential in Acacia koa populations on Hawai’i

Lawson

Pike

2017

Ann. For. Res.

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Lawson S. S., Pike C. C. 2017. Stable isotope ratios and reforestation potential in Acacia koa populations on Hawai'i. Ann. For. Res. 60(2): 279-295.Abstract. Stable carbon and nitrogen isotopes can be influenced by a multitude of factors including elevation, precipitation rate, season, and temperature. This work examined variability in foliar stable carbon (δ13C) and nitrogen (δ15N) isotope ratios of koa (Acacia koa) across 17 sites on Hawai'i Island, delineated by elevation and precipitation gradients. Sites were identified and grouped with respect to mean annual precipitation (MAP), mean annual temperature (MAT) and position along three elevation transects. Analysis of resultant δ13C and δ15N isotope ratios from multiple individuals across ecoregions indicated certain regions exhibited a correlation between carbon and/or nitrogen content, isotope ratios, precipitation, and elevation however, many comparisons showed no correlation. We used publicly available temperature and moisture data to help eliminate confounding effects by climatic drivers and capture possible points of contention. At sites where the temperature, precipitation, and elevation data were not significantly different, we compared stable isotope information to determine if additional variables might have contributed to a lack of definitive data. Our results identified several areas within the Waiakea Forest Reserve and Volcanoes National Park where, based on isotope analyses, reforestation efforts could be most successfully initiated.

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Section: Discussionsupporting

confidence: 91%

Stable isotope ratios and reforestation potential in Acacia koa populations on Hawai’i

Lawson

Pike

2017

Ann. For. Res.

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“…Adicionalmente, em função das características intrínsecas de seus solos arenosos (ARAUJO et al, 1998;, observa-se uma tendência de baixa disponibilidade de água e de nutrientes para as plantas (ARAUJO;LACERDA, 1987;DUARTE et al, 2005;.…”

Section: Resumo Variação Na Dinâmica Do Nitrogênio E Nos Atributos Founclassified

Variação na dinâmica do nitrogênio e nos atributos foliares em fisionomias de restinga da região Sudeste do Brasil

Mardegan¹

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“…There are just a few ecophysiological studies in the Genus Croton. For example, Dias de Oliveira et al (2012) and Duarte et al (2005) studied Croton urucurana Baillon and Croton compressus Lam. in Brazil, respectively.…”

Section: Introductionmentioning

confidence: 99%

Morphological and physiological responses of Galapagos endemic tree Croton scouleri to site conditions varying through its altitudinal range

Castillo¹,

Rubio-Casal²,

Figueroa³

et al. 2012

Dendrobiology

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Galapagos is a natural laboratory offering a great opportunity to study plants functional traits. This study characterises morphological and ecophysiological responses of Croton scouleri, an endemic tree that habits from humid and upper elevations to semiarid lowlands, throughout an altitudinal gradient and in a manipulative experiment. Croton scouleri trees were gradually smaller with less total leaf area due to a gradual reduction in mean leaf size, and they folded their leaves at lower elevations. These results were also recorded after cutting every deep root. Two physiological traits that allowed Croton scouleri to avoid damages to the photosynthetic apparatus were detected between 30 and 150 m a.s.l. Lower variable fluorescence (F v ) and basal fluorescence (F 0 ) keeping constant maximum photochemical efficiency of PSII (F v /F m ) denoted a drop in chlorophyll concentration. Concomitantly, the recorded increase in the Quantum efficiency of PSII ( PSII ) with similar F v /F m means that Croton scouleri could be using cyclic electron transport as photoprotective mechanism. On the other hand, a deep root system to reach the water table allowed Croton scouleri to behave as a drought-avoider, which was reflected in: (1) unvarying water status Leaf Water Content and Relative Water Content were always higher than 69 and 58%, respectively; (2) stable and low photoinhibition levels; and (3) unvarying leaf area index. However, Croton scouleri was not able to avoid drought at altitudes lower 30 m a.s.l. where similar responses to those recorded after root cutting were recorded.

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Ecophysiology of six selected shrub species in different plant communities at the periphery of the Atlantic Forest of SE-Brazil

Cited by 45 publications

References 57 publications

Stable isotope ratios and reforestation potential in Acacia koa populations on Hawai’i

Stable isotope ratios and reforestation potential in Acacia koa populations on Hawai’i

Variação na dinâmica do nitrogênio e nos atributos foliares em fisionomias de restinga da região Sudeste do Brasil

Morphological and physiological responses of Galapagos endemic tree Croton scouleri to site conditions varying through its altitudinal range

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