Invasão biológica em ilhas oceânicas: o caso de Leucaena leucocephala (Leguminosae) em Fernando de Noronha

Mello, Thayná Jeremias

doi:10.11606/d.41.2013.tde-31032014-131301

Cited by 3 publications

(4 citation statements)

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“…In a study by Silva Júnior et al (1987), the low floristic diversity was observed, as evidenced by the Shannon index of H'=1.95. This is an expected feature for island ecosystems, where natural colonization depends on seed dispersal, dispersion agents, seed viscosity, distance from the dispersion center, and other factors (MELLO, 2014). Such data on native tree species indicate that this archipelago is a fragile ecosystem, especially when considering a large number of existing invasive species (BARCELLOS et al, 2011).…”

Section: Resultsmentioning

confidence: 92%

“…However, the current vegetation cover of the island can transmit to visitors and residents a preserved natural beauty, but the environmental impacts caused by invasive species in the area are diverse and negative for biodiversity of the region, giving the false impression of rich and diverse vegetation. According to Batistella (1996), Cleto (2013) and Mello (2014), Noronha presents exotic species that potentiate the elimination of most other species, altering biodiversity and being one of the main threats to the conservation of this insular environment. These were introduced from the 18th century, with the occupation of the Captaincy of Pernambuco.…”

Section: Resultsmentioning

confidence: 99%

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Analysis of vegetation dynamics using the normalized difference vegetation index (NDVI) at the archipelago of Fernando de Noronha, Pernambuco, Brazil

Silva

El-Deir

Júnior

et al. 2020

Inter

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Island environments have specific biotic and abiotic characteristics, as fragility, limitation of natural resources, geographic isolation, and fragmentation are determining factors that directly affect these areas. Thus, it is relevant to understand the natural evolution of the landscape in the islands, considering the anthropic actions and climate changes in the transformation of vegetation cover, as a means of time series and study of satellite images. This paper aims to analyze the dynamics of the landscape (changes in vegetation cover) of the Fernando de Noronha Archipelago concerning urban development, and other anthropic activities that occurred between 1999 and 2018, through remote sensing images, to establish comparisons with the Island Management Plans that were elaborated in the years of 2005 and 2017. Also, this study intends to raise elements to assist in the spatial management of the Archipelago and to establish Public Conservation Policies for Fernando de Noronha and other island areas. Images from Landsat 7 and Landsat 8 were obtained for scenes from 1999 and 2017, respectively. These images were preprocessed and analyzed in Quantum GIS 2.18 software. And applied the NDVI calculation. It was also used the database found in the sustainable management plan of the archipelago provided by the state government of Pernambuco. With these data, it was possible to diagnose a vegetative growth on the island of about 45.36% in 17 years corroborating with the changes found in the data coming from the island's management plan. However, there are no changes in the phytosociological diversity of the island, this cause is pointed out to the invading and ruderals species of the island that are established and propagate.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Analysis of vegetation dynamics using the normalized difference vegetation index (NDVI) at the archipelago of Fernando de Noronha, Pernambuco, Brazil

Silva

El-Deir

Júnior

et al. 2020

Inter

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show abstract

“…Além disso, essa espécie também é hospedeira de diversas pragas de lavoura (ALVES et al, 2014). Em razão desse conjunto de fatores, a invasão dessa espécie é cada vez mais comum, e a espécie pode ser observada invadindo diferentes ecossistemas (HOROWITZ et al, 2013;MELLO, 2014;FABRICANTE et al, 2015).…”

Section: Resultsunclassified

Utilização de espécies exóticas na arborização e a facilitação para o estabelecimento de casos de invasão biológica

et al. 2017

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ResumoO presente estudo teve como objetivo inventariar as espécies utilizadas na arborização do campus de Ciências Agrárias (CCA) da Universidade Federal da Paraíba (UFPB), Areia, PB e classiicá-las de acordo com sua origem e seu potencial invasor. Por meio de caminhadas por toda a área de estudo (busca ativa) foram inventariadas todas as espécies utilizadas na arborização local e classiicadas em nativas e exóticas. As exóticas ainda foram classiicadas quanto ao seu potencial invasor. Ao todo foram identiicadas 76 espécies pertencentes a 67 gêneros e 25 famílias. Destas, apenas 26 espécies eram nativas. Os resultados do presente trabalho são preocupantes devido ao elevado número de espécies exóticas utilizadas na arborização do local de estudo (50 spp.) e pela presença de espécies reconhecidamente agressivas, a exemplo de Artocarpus heterophyllus Lam., Azadirachta indica A. Juss. e Leucaena leucocephala (Lam.) de Wit. Palavra-chave: Exóticas invasoras; Paisagismo AbstractUse of exotic species in afforestation and facilitation for the establishment of biological invasion. This study aimed to inventory the species used in landscaping the Campus of Agricultural Sciences of the Federal University of Paraíba, Areia, PB, Brazil and to rank them according to their origin and their invasive potential. Through walks throughout the study area (active search), we cataloged all the species used in local afforestation and classiied them as native or exotic. Exotic plants were also classiied as to their invasive potential. Altogether, we identiied 76 species belonging to 67 genera and 25 families. Of these, only 26 species were native. The results of this study are worrisome because of the large number of exotic species used for planting at the study site (50 species), including known aggressive species: Artocarpus heterophyllus Lam., Azadirachta indica A. Juss. and Leucaena leucocephala (Lam.) de Wit.

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“…No Brasil, apesar de ser apontada como de alto risco de invasão pela análise de risco conduzida pelo Instituto Hórus. Mello (2013) relata que a espécie foi encontrada amplamente distribuída da ilha de Fernando de Noronha. No entanto, Costa e Durigan (2010) relatam que a espécie não foi encontrada fora da área onde foi plantada em uma área de restauração no interior de São Paulo, não se caracterizando, portanto, como espécie invasora de ecossistemas naturais.…”

Section: Descrição Das Espéciesunclassified

Modelagem multi-hierárquica de distribuição potencial e seleção de filtros ambientais de espécies invasoras no Estado de São Paulo

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Invasão biológica em ilhas oceânicas: o caso de Leucaena leucocephala (Leguminosae) em Fernando de Noronha

Cited by 3 publications

References 40 publications

Analysis of vegetation dynamics using the normalized difference vegetation index (NDVI) at the archipelago of Fernando de Noronha, Pernambuco, Brazil

Analysis of vegetation dynamics using the normalized difference vegetation index (NDVI) at the archipelago of Fernando de Noronha, Pernambuco, Brazil

Utilização de espécies exóticas na arborização e a facilitação para o estabelecimento de casos de invasão biológica

Modelagem multi-hierárquica de distribuição potencial e seleção de filtros ambientais de espécies invasoras no Estado de São Paulo

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