Estrutura populacional e distribuição espacial de Miconia prasina D.C. (Melastomataceae) em duas áreas de Floresta Atlântica na Ilha Grande, RJ, Sudeste do Brasil

Antonini, Rafaela Dias; Nunes-Freitas, André Felippe

doi:10.1590/s0102-33062004000300024

Cited by 13 publications

(10 citation statements)

References 31 publications

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“…The aggregated distribution patterns frequently encountered in the present study are usually strongly associated with species dispersed by animals or by autochory (barochory) (Antonini and Nunes Freitas 2004;Malhado and Petrere Jr. 2004;Marques and Joly 2000;Vicente et al 2003). Barbosa et al (2003) examined 28 woody species in the caatinga and determined that 47% were autochorous, 32% were zoochorous, and 21% exhibited anemochory.…”

Section: Conservation Prioritiesmentioning

confidence: 47%

Conservation Priorities and Population Structure of Woody Medicinal Plants in an Area of Caatinga Vegetation (Pernambuco State, NE Brazil)

Oliveira

Neto

Araújo

et al. 2007

Environ Monit Assess

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In spite of heavy harvesting pressure on some of the most popular medicinal plant species, there are very few published studies concerning their conservation the semi-arid region of northeastern Brazil. In light of this fact, the present work sought to evaluate the local conservation and the harvesting sustainability of medicinal plants in an region of caatinga vegetation employing a fusion of biological and cultural approaches. Ethnobotanical methodologies and techniques were employed in the community of "Riachão de "Malhada de Pedra"" (municipality of Caruaru, state of Pernambuco, Brazil) in order to document local knowledge concerning medicinal plants and to examine the availability of those plants in a caatinga vegetation fragment located near that community. A total of 21 medicinal plant species were identified in the area and classified according to ecological factors and local uses. Two plants (Ziziphus joazeiro and Myracrodruon urundeuva) stood out has having high priority for conservation efforts. Sixteen species were identified as having populations adequate for harvesting through a system of pre-determined quotas, while four species were deemed sufficiently abundant to be harvested without risk of causing significant impact on their sustainability.

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Section: Conservation Prioritiesmentioning

confidence: 47%

Conservation Priorities and Population Structure of Woody Medicinal Plants in an Area of Caatinga Vegetation (Pernambuco State, NE Brazil)

Oliveira

Neto

Araújo

et al. 2007

Environ Monit Assess

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“…Miconia nervosa (Smith) Triana (Family Melastomataceae) is a 2-3 m tall early successional shrub native to rainforests of tropical America. In the Atlantic forest region, it is common in the understory of primary forests, along forest edges, and near gaps of secondary forests (Antonini & Nunes-Freitas, 2004). The species has inflorescences with many small flowers that produce many-seeded berry fruits (up to 500 seeds per fruit) primarily dispersed by birds (Goldenberg & Shepherd, 1998).…”

Section: Study Speciesmentioning

confidence: 99%

Disentangling the effects of foliar vs. floral herbivory of leaf-cutting ants on the plant reproductive success ofMiconia nervosa(Smith) Triana (Family Melastomataceae)

Câmara

Arnán

Barbosa

et al. 2019

Bull. Entomol. Res.

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Flower and leaf herbivory might cause relevant and negative impacts on plant fitness. While flower removal or damage by florivores produces direct negative effects on plant fitness, folivores affect plant fitness by reducing resource allocation to reproduction. In this study, we examine the effects of both flower and leaf herbivory by leaf-cutting ants on the reproductive success of the shrub species Miconia nervosa (Smith) Triana (Family Melastomataceae) in a fragment of Atlantic Forest in Northeast Brazil. We conducted a randomized block-designed field experiment with nine replicates (blocks), in which three plants per block were assigned to one of the three following treatments: undamaged plants (ant exclusion), leaf-damaged plants (ant exclusion from reproductive organs, but not from leaves), and flower + leaf-damaged plants (no exclusion of ants). We then measured flower production, fruit set, and fruit production. Our results showed that flower + leaf-damaged plants reduced flower production nearly twofold in relation to undamaged plants, while flower set in leaf-damaged plants remained constant. The number of flowers that turned into fruits (i.e., fruit set), however, increased by 15% in flower + leaf-damaged plants, while it slightly decreased in leaf-damaged compared to undamaged plants. Contrastingly, fruit production was similar between all treatments. Taken together, our results suggest a prominent role of ant floral herbivory across different stages of the reproductive cycle in M. nervosa, with no consequences on final fruit production. The tolerance of M. nervosa to leaf-cutting ant herbivory might explain its high abundance in human-modified landscapes where leaf-cutting ants are hyper-abundant.

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“…A Miconia prasina é uma espécie nativa pioneira, heliófita e pode ser um componente do sub-bosque de florestas primárias, ocorre em bordas e clareiras de fragmentos florestais (ANTONINI, FREITAS-NUNES, 2004). Conseguem se estabelecer rapidamente em solos degradados (SNOW, 1965;STILES, ROSSELLI, 1983).…”

Section: Resultsunclassified

Fitossociologia e síndrome de dispersão em um trecho de floresta atlântica, em Paulista – PE

Cola

Nobre

Farias

et al. 2019

AGROPECUÁRIA NO SEMIÁRIDO

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O objetivo foi realizar o levantamento fitossociológico com síndrome de dispersão do componente arbóreo adulto em um trecho de floresta ombrófila densa, localizado em Paulista – Pernambuco. O trecho possui 23,7 ha. Foram lançadas parcelas aleatórias de 200 m², somando 20 parcelas com área total de 0,4 ha. O nível de inclusão dos indivíduos arbóreos foi com circunferência a altura do peito (CAP) igual ou maior que 15 cm. Todos os indivíduos mensurados foram identificados botanicamente seguindo a classificação APG III. A caracterização fitossociológica foi feita através dos seguintes parâmetros: densidade absoluta e relativa, dominância absoluta e relativa, frequência absoluta e relativa e valor de importância. O Índice de Diversidade de Shannon (H’) também foi calculado. Para a síndrome de dispersão, as espécies foram classificadas como zoocóricas ou dispersadas por elementos abióticos. As espécies com maior valor de importância foram Tapirira guianensis, Schefflera morototoni, Pogonophora schomburgkiana, Cupania racemosa, e Miconia prasina, respectivamente. O Índice de Shannon foi de 3,44. A síndrome de dispersão demonstrou que 80,9% das espécies são dispersadas por zoocoria e 14,3% por mecanismos abióticos. O componente arbóreo adulto se encontra dentro dos padrões de riqueza e abundância encontrados em remanescentes florestais de Pernambuco.

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Estrutura populacional e distribuição espacial de Miconia prasina D.C. (Melastomataceae) em duas áreas de Floresta Atlântica na Ilha Grande, RJ, Sudeste do Brasil

Cited by 13 publications

References 31 publications

Conservation Priorities and Population Structure of Woody Medicinal Plants in an Area of Caatinga Vegetation (Pernambuco State, NE Brazil)

Conservation Priorities and Population Structure of Woody Medicinal Plants in an Area of Caatinga Vegetation (Pernambuco State, NE Brazil)

Disentangling the effects of foliar vs. floral herbivory of leaf-cutting ants on the plant reproductive success ofMiconia nervosa(Smith) Triana (Family Melastomataceae)

Fitossociologia e síndrome de dispersão em um trecho de floresta atlântica, em Paulista – PE

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