Synusial Approaches to Classification

Barkman, J.J.

doi:10.1007/978-94-010-2701-4_16

Cited by 34 publications

(30 citation statements)

References 27 publications

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“…Em relação às formas de vida, considerou-se nanofanerófitas as espécies cujos indivíduos apresentaram alturas entre 1,0 e 2,0m; microfanerófitas, com alturas de 2,1 a 8,0m; e mesofanerófitas, com alturas acima de 8,1m (Barkman 1978).…”

Section: Methodsunclassified

Fitossociologia de trechos da vegetação do Complexo de Campo Maior, Campo Maior, PI, Brasil

Farias

Castro

2004

Acta Bot. Bras.

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RESUMO - Palavras-chave: fitossociologia, ecótono, Campo Maior, Piauí ABSTRACT -(Phytosociology in parts of vegetation from Campo Maior Complex in Campo Maior Municipality, Piauí State, Brazil).With the purpose to contribute to the knowledge of the phytophysionomy of transition in a area in Campo Maior province, recover for a vegetation denominated Complex of Campo Maior, utilized the Quadrants Method considering all stem diameter of ≥ 3cm at the soil level. They were allocated 100 points in each area, Alto do Comandante and Baixão da Cobra, located in Lourdes' Farm. Were showed 46 species in Alto do Comandante and 44 in Baixão da Cobra, in a total of 68 species. The density values and of basal area were 2,730 and 2,799ind ha -1 and 38.22 and 38.58m 2 ha -1 , respectively. The species with major rate of importance value (IVI) in Alto do Comandante were Casearia ulmifolia Vahl. ex Vent., Aspidosperma subincanum Mart., Combretum leprosum Mart. and Bauhinia ungulata L. The first position of C. ulmifolia was in consequence of three relative parameter. Only three species of major IVIs contributed with the majors rate of covering value (IVC). In Baixão da Cobra, the specie of major IVI was Aspidosperma subincanum Mart, also in consequence of three relative parameters values. Combretum mellifluum Eichler, Bauhinia pulchella Benth. and Buchenavia capitata (Vahl.) Mart. also stood out. The four species with major IVI corresponded with that ones of major IVC. The rates of diversity of Shannon (H') was 3.20 and 3.09nats ind -1 to Alto do Comandante and Baixão da Cobra, this values can be considered high when compared with the values found in works developed an Caatinga, Carrasco and Cerrado Brazilian Northeast.

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Section: Methodsunclassified

Fitossociologia de trechos da vegetação do Complexo de Campo Maior, Campo Maior, PI, Brasil

Farias

Castro

2004

Acta Bot. Bras.

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“…Adotou-se a abordagem de sinúsias para a análise da estrutura de tamanho. Segundo Barkman (1978), sinúsias representam um conjunto de plantas ou espécies com a mesma forma de vida. A maior altura individual de cada espécie definiu sua forma de vida.…”

Section: Ls E 37°11unclassified

“…A maior altura individual de cada espécie definiu sua forma de vida. Consideraram-se as espécies como nanofanerófitas quando têm até 2 m de altura; microfanerófitas com alturas entre 2,1 e 8 m; e mesofanerófitas com mais de 8 m (Barkman, 1978).…”

Section: Ls E 37°11unclassified

Fitossociologia do componente lenhoso de um refúgio vegetacional no município de Buíque, Pernambuco

et al. 1998

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Phytosociology of the woody component in vegetacional refuge, Buíque, PernambucoPhytosociology of the woody component of a vegetacion refuge in the municipality of Buíque, Pernambuco. Physiognomy and structure of a evergreen shrub vegetation found on the windward slope of the Catimbau range, at the Cigano property, Buíque (8°67 ' LS and 37°1 ' LW, altitude 800 m) were determined, as a contribution to the knowledge of the vegetation on sedimentary plateaus of Pernambuco. The point centered quarter method was used with 100 points distributed in 10 parallel lines, each point 10 m and each line 30 m apart. All living and standing dead individuals with stem diameter ⊕ 3 cm at soil level and plant height ⊕ 1 m were sampled. Total density, total basal area, average and largest diameter and height were 2.208 ind./ha, 6.07 m 2 /ha, 5.1 cm and 22.0 cm and 2.3 m and 7 m, respectively, revealing a shrub pattern different from those of the caatinga and carrasco studied in Northeastern Brasil. Of the 35 sampled species, Eremanthus capitatus, Piptadenia obliqua, Gochnatia oligocephala, Senna cana var. cana and Eugenia punicifolia were reponsible for 63.3% of the importance value index total. Shannon diversity index for species was 2.73 nats/ind.Key words: phytosociology, vegetational refuge, semi-arid. RESUMOCom o objetivo de contribuir para o conhecimento da vegetação lenhosa das chapadas sedimentares do sertão de Pernambuco, foi realizada a caracterização fisionômica e a análise da estrutura da vegetação arbustiva perenifólia localizada em uma vertente a barlavento da serra do Catimbau, na propriedade sítio Cigano, Buíque (8°67 ' LS e 37°1 ' LW) a 800 m de altitude. Em cem pontos quadrantes, distribuídos em 10 linhas paralelas, interdistantes 30 m, cada uma com 10 pontos quadrantes distanciados 10 m, foram amostrados todos os indivíduos com diâmetro do caule ⊕ 3 cm no nível do solo e altura total ⊕ 1 m. Densidade total, área basal total, alturas e diâmetros médios e máximos foram de 2.207,7 ind./ha, 6,07 m 2 /ha, 2,3 m e 7,0 m, 5,1 cm e 21,96 cm, respectivamente, revelando um padrão fisionômico distinto das vegetações de caatinga e carrasco estudadas no nordeste do Brasil. Das 35 espécies amostradas, Eremanthus capitatus, Piptadenia obliqua, Gochnatia oligocephala, Senna cana var. cana e Eugenia punicifolia foram responsáveis por 63,3% do índice do valor de importância total. O índice de diversidade de Shannon para espécies foi de 2,73 nats/ind. Palavras-chave: fitossociologia, refúgio vegetacional, semi-árido.

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“…In our case, the vegetation has to be described at a scale of homogeneous units sufficiently small to allow soil fauna to discriminate (Tilman 2000;Mathieu et al 2009;Doblas-Miranda et al 2009). In forest ecosystems, the herb layer can be described as a mosaic of plant synusiae that are linked to contrasting microhabitats, indicating differences in edaphic and microclimatic conditions (Barkman 1978;Gillet and Gallandat 1996). Within the forest phytocoenosis, we can thus delimit multi-layered microcoenoses (Barkman 1978), each including a distinct herb synusia and the superposed vegetation layers (shrubs and trees).…”

Section: Introductionmentioning

confidence: 99%

“…In forest ecosystems, the herb layer can be described as a mosaic of plant synusiae that are linked to contrasting microhabitats, indicating differences in edaphic and microclimatic conditions (Barkman 1978;Gillet and Gallandat 1996). Within the forest phytocoenosis, we can thus delimit multi-layered microcoenoses (Barkman 1978), each including a distinct herb synusia and the superposed vegetation layers (shrubs and trees). Given the small-scale organization of humus components, the scale of plant microcoenosis is still large for soil fauna but it represented the appropriate level of description to determine a shared structure between flora, fauna and humus compartments.…”

Section: Introductionmentioning

confidence: 99%

Structural relationships among vegetation, soil fauna and humus form in a subalpine forest ecosystem: a Hierarchical Multiple Factor Analysis (HMFA)

Bernier¹,

Gillet²

2012

Pedobiologia

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a b s t r a c tAboveground vegetation, four belowground fauna groups and humus composition have been analyzed in order to investigate the links between autotrophic and heterotrophic communities in a Norwayspruce mountain forest in Tours-en-Savoie (France). The aboveground plant community was recorded in small patches corresponding to contrasting microhabitats. Animal communities and humus layers were sampled within the same patches. The relationships between humus profile, faunistic and floristic compositional gradients were investigated by Multiple Factor Analysis (MFA) and, for the first time in ecology, a Hierarchical Multiple Factor Analysis (HMFA) was used to interpret differences among humus layers. The analysis revealed a pattern with three main groups of microhabitats. The thorough study of separate humus layers could explain this result. The interplay of plant-animal-soil interactions is likely to drive the ecosystem toward three alternative states supporting humus traditional classification between mull-mor-moder. HMFA revealed the importance of depth to explain this contrast among humus forms, using humus layers as diagnostic tools in both inert and living components. HMFA also showed contrast between unexploited and exploited parts of the forest, but the study of soil and vegetation indicate that this contrast does not only hold in forest management but also in geomorphology. RV-coefficients among the six groups of variables showed significant fauna-fauna relationships in almost all humus layers except Actinedida. Plant-soil interactions are not as strong as expected and are even weaker when the soil in question is deep. In addition, HMFA failed to show direct interactions between plant and soil fauna but, paradoxically, HMFA does suggest that indirect plant-fauna interactions are at the focus of the ecosystem strategy that leads to the differentiation of ecological niches within the forest mosaic.

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Synusial Approaches to Classification

Cited by 34 publications

References 27 publications

Fitossociologia de trechos da vegetação do Complexo de Campo Maior, Campo Maior, PI, Brasil

Fitossociologia de trechos da vegetação do Complexo de Campo Maior, Campo Maior, PI, Brasil

Fitossociologia do componente lenhoso de um refúgio vegetacional no município de Buíque, Pernambuco

Structural relationships among vegetation, soil fauna and humus form in a subalpine forest ecosystem: a Hierarchical Multiple Factor Analysis (HMFA)

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