New Nodulating Legume Trees From South‐east Brazil

Faria, Sérgio Miana de; Franco, A. A.; Jesus, Raildo Mota de; Menandro, M. de S.; Baitello, João Batista; Mucci, E. S. F.; Döbereiner, Johanna; Sprent, Janet I.

doi:10.1111/j.1469-8137.1984.tb02742.x

Cited by 89 publications

(51 citation statements)

References 7 publications

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“…In our study, the low frequency observed (71% of species) is due to the presence of the Parkieae, a tribe known for its absence of nodulation in the type-genus (De Faria et al, 1984 ;Sprent, 1995). Nodulation is known to be variable in the Mimoseae, particularly in the genera Pseudopiptadenia and Stryphnodendron .…”

Section: Nodulation In the Leguminosaementioning

confidence: 50%

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Nitrogen‐fixing legumes and silvigenesis in a rain forest in French Guiana: a taxonomic and ecological approach

Roggy

Prévost²

1999

New Phytologist

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The nodulation status and nodule morphology of 62 taxa of Leguminosae in a rain forest in French Guiana are reported according to the taxonomy of the family. The N2‐fixing species are then fitted into ‘functional groups’ according to their behaviour towards illumination, in order to evaluate their importance in the global dynamics of the stand. The results showed that 67% of the observed species were nodulated (50, 71 and 77% of the Caesalpiniaceae, Mimosaceae and Papilionaceae, respectively). In the Caesalpiniaceae, nodule‐like structures were reported in the genus Crudia and in the species Senna quinquangulata, although this needs to be confirmed. All the nodules studied in this subfamily were astragaloid and mucunoid. In the Mimosaceae, the ability of a new genus (Balizia) to form nodules was reported, as well as nodulation on aerial roots in Inga stipularis. The nodules studied were mainly mucunoid. In the Papilionaceae, nodulation on aerial roots in Poecilanthe hostmannii and on conventional roots of the genus Paramachaerium were reported for the first time. All types of nodular structures were found in this subfamily but the structures were quite uniform at the tribal level. These are consistent with suggestions that nodule morphology has a taxonomic value. Eight functional groups of N2‐fixing species are proposed, ranging from light dependance to shade tolerance. These results indicate the important role played by N2‐fixing species in the global dynamics of the stand and that N inputs by N2 fixation were continuous along the gradient of energetic resources that characterizes the silvigenetic process. The interactions between the photosynthetic capacities of the species and the ability to fix N2 in low light conditions are discussed.

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Section: Nodulation In the Leguminosaementioning

confidence: 50%

“…Among the Detarieae, nodulation has not been observed in 13 genera including Copaifera, Peltogyne and Crudia (De Faria et al, 1984 ;1987a. The incidence of nodulation in the genus Eperua is uncertain, since it has been reported in only one species of the 14 known (Allen & Allen, 1981).…”

Section: Nodulation In the Leguminosaementioning

confidence: 99%

Nitrogen‐fixing legumes and silvigenesis in a rain forest in French Guiana: a taxonomic and ecological approach

Roggy

Prévost²

1999

New Phytologist

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“…Abundance (count model component) of E. falcata was negatively related to low soil nitrogen values. This species, along with others of the same genus, are generally able to produce nitrogen-fixing root nodules (Faria et al, 1984(Faria et al, , 1989Schimann et al, 2008). However, its roots have a unique strategy to acquire soil nitrogen.…”

Section: Variables Related To Species Occurrence and Abundancementioning

confidence: 99%

“…The roots do not exploit available nitrogen in the soil, and instead use nitrogen in the leaf litter (Chesney and Vasquez, 2007;Payan et al, 2009 on E. poeppigiana in agroforestry systems), an environmental variable that was analysed in our study. Conversely, M. frondosus, another Fabaceae species, was not reported to produce nitrogen-fixing nodules (Allen and Allen, 1981;Faria et al, 1984).…”

Section: Variables Related To Species Occurrence and Abundancementioning

confidence: 99%

Occurrence and abundance models of threatened plant species: Applications to mitigate the impact of hydroelectric power dams

Guarino

Barbosa

Waechter

2012

Ecological Modelling

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In situ and ex situ plant conservation Environmental assessment Model validation a b s t r a c t Species occurrence and abundance models are important tools that can be used in biodiversity conservation, and can be applied to predict or plan actions needed to mitigate the environmental impacts of hydropower dams. In this study our objectives were: (i) to model the occurrence and abundance of threatened plant species, (ii) to verify the relationship between predicted occurrence and true abundance, and (iii) to assess whether models based on abundance are more effective in predicting species occurrence than those based on presence-absence data. Individual representatives of nine species were counted within 388 randomly georeferenced plots (10 m × 50 m) around the Barra Grande hydropower dam reservoir in southern Brazil. We modelled their relationship with 15 environmental variables using both occurrence (Generalised Linear Models) and abundance data (Hurdle and Zero-Inflated models). Overall, occurrence models were more accurate than abundance models. For all species, observed abundance was significantly, although not strongly, correlated with the probability of occurrence. This correlation lost significance when zero-abundance (absence) sites were excluded from analysis, but only when this entailed a substantial drop in sample size. The same occurred when analysing relationships between abundance and probability of occurrence from previously published studies on a range of different species, suggesting that future studies could potentially use probability of occurrence as an approximate indicator of abundance when the latter is not possible to obtain. This possibility might, however, depend on life history traits of the species in question, with some traits favouring a relationship between occurrence and abundance. Reconstructing species abundance patterns from occurrence could be an important tool for conservation planning and the management of threatened species, allowing scientists to indicate the best areas for collection and reintroduction of plant germplasm or choose conservation areas most likely to maintain viable populations.

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“…Vale ressalvar, porém, que apesar de ser uma espécie fixadora de N 2 , a mangium tendeu a retranslocar um percentual significativo de N antes que seus filódios senescessem (Tabela 2) o que corrobora com a mobilidade desse elemento dentro da planta e com a idade do plantio. Em conseqüência da introdução constante de resíduos com relação C/N estreita e ao estoque de matéria orgânica (e N) sobre o solo em áreas de ocorrência de leguminosas, a nodulação passa a ser escassa por parte dessas espécies (Faria et al, 1984). A ciclagem do N existente na área passa a ser suficiente no atendimento da demanda e manutenção destas no ecossistema, além de ser mais econômico fisiologicamente para a espécie adquirir nitrogênio na forma combinada do que em simbiose.…”

Section: Eficiência De Uso E Taxa De Retranslocação De N P K Ca E Mgunclassified

Acúmulo de nutrientes na parte aérea, na serapilheira acumulada sobre o solo e decomposição de filódios de <i>Acacia mangium</i> Willd.

Balieiro

Dias²,

Franco³

et al. 2005

Ciênc. Florest.

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O acúmulo de N, P, K, Ca e Mg nos tecidos da parte aérea e na serapilheira acumulada sobre o solo, bem como a velocidade de decomposição de filódios e a eficiência de uso de nutrientes (CUB) da Acacia mangium Willd (mangium) foram avaliados num povoamento localizado em Seropédica, RJ. A espécie apresentou elevada eficiência de uso dos nutrientes, acumulando, aos cinco anos, grande quantidade de biomassa em sua parte aérea (135 t.ha-1) e contendo: 544,9 kg.ha-1 de N; 281,7 kg.ha-1 de Ca; 242,9 kg.ha-1 de K; 47 kg.ha-1 de Mg e 35,2 kg.ha-1 de P. Na serapilheira acumulada sobre o solo (12,7 t.ha-1), foram encontradas reservas significativas dos nutrientes (251,0; 5,7; 14,6; 102,7 e 22,7 kg.ha-1 de N, P, K, Ca e Mg respectivamente). A constante de decomposição (k) foi estimada em 0,00165 g.g-1.dia-1 e o tempo de meia vida dos filódios em 421 dias. A acumulação de serapilheira pode ser positiva no sentido de constituir reserva de nutrientes para cultivos em sucessão, mas também pode representar uma desvantagem, por servir como combustível em áreas sujeitas a queimadas.

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New Nodulating Legume Trees From South‐east Brazil

Cited by 89 publications

References 7 publications

Nitrogen‐fixing legumes and silvigenesis in a rain forest in French Guiana: a taxonomic and ecological approach

Nitrogen‐fixing legumes and silvigenesis in a rain forest in French Guiana: a taxonomic and ecological approach

Occurrence and abundance models of threatened plant species: Applications to mitigate the impact of hydroelectric power dams

Acúmulo de nutrientes na parte aérea, na serapilheira acumulada sobre o solo e decomposição de filódios de <i>Acacia mangium</i> Willd.

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