Invasive Species
Mostrando 1-12 de 426 artigos, teses e dissertações.
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1. Molecular epidemiology and antifungal susceptibilities of Aspergillus species isolated from patients with invasive aspergillosis
SUMMARY OBJECTIVE: The aim of this study was to evaluate the demographic data, molecular epidemiology, and in vitro antifungal susceptibility results of patients with Aspergillus isolated from various clinical specimens. METHODS: A total of 44 Aspergillus strains were studied. The definition of invasive aspergillosis in patients was made according to Europ
Revista da Associação Médica Brasileira. Publicado em: 2023
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2. Niche differentiation between a native and an invasive species of submersed macrophyte in a subtropical reservoir
ABSTRACT Submersed macrophytes have important ecological roles but non-native invasive species may affect biodiversity and water uses. We investigated the native macrophyte Egeria najas and the invasive Hydrilla verticillata and measured their maximum colonization depth and its relationship with Secchi disk depth, their biomass along the depth gradient and t
Acta Bot. Bras.. Publicado em: 2021-03
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3. The invasive tropical tanner grass decreases diversity of the native aquatic macrophyte community at two scales in a subtropical tidal river
ABSTRACT The tropical tanner grass, Urochloa arrecta, is one of the worst aquatic plant invaders in Brazilian freshwater ecosystems. This study aimed to compare beds of macrophytes dominated and without U. arrecta in the Guaraguaçu River, a subtropical tidal river in South Brazil, to analyze effects that this invasive grass has on the biodiversity of native
Acta Bot. Bras.. Publicado em: 2021-03
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4. Enzymatic efficiency of the decomposing microbiota: what does really matter for aquatic macrophytes invasions?
ABSTRACT Biological invasions have negative impacts on different ecosystem-level functions, such as nutrient cycling. In aquatic environments, exotic litter can change the activity of the decomposer microbiota. We tested whether litter quality, litter decay, and enzyme activity differed between nativeEgeria densaand exoticHydrilla verticillata. The invasive
Acta Bot. Bras.. Publicado em: 2021-03
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5. Response of rhizomes of the invasive Hedychium coronarium J. König (Zingiberaceae) to different soil moisture conditions
ABSTRACT The ability to maintain high competitiveness under a wide range of conditions is common among successful invasive species. The performance of rhizomatous macrophytes in different habitats is closely related to morphological and physiological adaptations in the rhizome system. We investigated the effects of soil moisture conditions on the microstruct
Acta Bot. Bras.. Publicado em: 2021-03
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6. Fire cues and germination of invasive and native grasses in the Cerrado
ABSTRACT Fire-related cues may enhance seed recruitment in flammable ecosystems and differences in fire-germination responses of invasive vs. native species can drive the invasion process. We evaluated the effects of heat shock and smoke water solution treatment on seed germination of invasive (Melinis minutiflora, Urochloa decumbens, U. brizantha) and nativ
Acta Bot. Bras.. Publicado em: 2020-03
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7. An update on the knowledge of aquatic macrophytes in Northeast Brazil
Resumo Atualizamos o primeiro checklist de macrófitas aquáticas do Nordeste do Brasil (Primeira Flora), que incluiu dados coletados até 2010, com uma nova lista de espécies baseada em dados de trabalhos publicados entre 2011 e 2017 (Nova Flora). Juntas, estas listagens registram 637 espécies de 89 famílias, com ênfase em espécies estritamente anfíbi
Rodriguésia. Publicado em: 20/12/2019
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8. Closing the Snack Bar: Developing Methods for Jackfruit Tree (Artocarpus heterophyllus Lamk.) Control in Brazil
ABSTRACT There are several techniques for the control and removal of invasive species that can be applied, and there is a demand among restoration practitioners for plant control methods. This study compared two methods for the control of jackfruit tree: mechanical method of trunk girdling and chemical method of herbicide injection into the trunk. It was eva
Floresta Ambient.. Publicado em: 13/12/2019
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9. Residues of Invasive Forage Species Inhibits the Growth of Caryocar brasiliense
RESUMO: O crescimento de mudas de espécies nativas pode ser afetado por substâncias alelopáticas liberadas por espécies forrageiras invasivas principalmente em áreas de recomposição natural. Objetivou-se nesta pesquisa avaliar as características de crescimento do pequizeiro influenciadas por concentrações de resíduos vegetais das espécies forrage
Planta daninha. Publicado em: 02/12/2019
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10. Leaf and Root Allelopathic Potential of the Vernonanthura brasiliana
RESUMO: A espécie de planta daninha assa-peixe (Vernonanthura brasiliana) tem se destacado como uma das principais espécies vegetais invasoras de áreas de pastagens na Amazônia, tornando-se importante a necessidade da produção de informações acerca da sua biologia, visando o conhecimento de seu comportamento no ambiente e potencializando o desenvolvi
Planta daninha. Publicado em: 02/12/2019
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11. Glyphosate Resistance Affect the Physiological Quality of Conyza bonariensis seeds
RESUMO: A alta capacidade de produção e dispersão de sementes e a resistência ao glyphosate estão entre os principais fatores que tornaram a buva (Conyza bonariensis) uma das mais importantes e dispersas plantas daninhas no mundo. Populações de plantas resistentes a herbicidas podem apresentar penalidades em função das alterações moleculares, fisi
Planta daninha. Publicado em: 02/12/2019
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12. Ecological niche modeling of Schinus molle reveals the risk of invasive species expansion into biodiversity hotspots
Abstract: Invasive species need a closer look on the threats they may cause to the environment, mainly considering the scenario of climatic changes predicted for the next decades. Schinus molle is a pioneer tree native from South America, reported as an important invasive species in four continents. Using ecological niche modeling we show that a wide area ov
An. Acad. Bras. Ciênc.. Publicado em: 28/11/2019