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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
25/01/2017 |
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Data da última atualização: |
20/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOLAR, R. R. de C.; BARLOW, J.; ANDERSEN, A. N.; SCHOEREDER, J. H.; BERENGUER, E.; FERREIRA, J. N.; GARDNER, T. A. |
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Afiliação: |
Ricardo Ribeiro de Castro Solar, UFV / Lancaster University; Jos Barlow, Lancaster University / MPEG; Alan N. Andersen, CSIRO Land & Water; José H. Schoereder, UFV; Erika Berenguer, Lancaster University; JOICE NUNES FERREIRA, CPATU; Toby Alan Gardner, Stockholm Environment Institute. |
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Título: |
Biodiversity consequences of land-use change and forest disturbance in the Amazon: A multi-scale assessment using ant communities. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Biological Conservation, v. 197, p. 98-107, May 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Quantifying and understanding the main drivers of biodiversity responses to human disturbances at multiple scales is key to foster effective conservation plans and management systems. Here we report on detailed regional assessment of the response of ant communities to land-use change and forest disturbance in the Brazilian Amazon. We aimed to explore the effects of land-use intensification at both site and landscape scales, examining variation in ant species richness and composition, and asking which set of environmental variables best predict observed patterns of diversity. We sampled 192 sites distributed across 18 landscapes (each 50 km2) in Paragominas, eastern Brazilian Amazon, covering ca. 20,000 km2. We sampled from undisturbed primary forest through varyingly disturbed primary forests, secondary forests, pastures and mechanised agriculture, following a gradient of decreasing total aboveground biomass. Irrespective of forest disturbance class, ant species richness was almost twice as high in forests when compared to production areas. In contrast, ant species composition showed continuous variation from primary forest to intensive agriculture, following a gradient of aboveground biomass. Ant species richness at all spatial scales increased with primary forest cover in the surrounding landscapes. We highlight the limited value of species richness as an indicator of changes in habitat quality, reinforcing calls to consider species composition in assessments of forest disturbance. Taken together, our results reveal the unique biodiversity value of undisturbed primary forests, but also show that disturbed primary forests and secondary forests have high conservation value, and thus play an important role in regional conservation planning. MenosQuantifying and understanding the main drivers of biodiversity responses to human disturbances at multiple scales is key to foster effective conservation plans and management systems. Here we report on detailed regional assessment of the response of ant communities to land-use change and forest disturbance in the Brazilian Amazon. We aimed to explore the effects of land-use intensification at both site and landscape scales, examining variation in ant species richness and composition, and asking which set of environmental variables best predict observed patterns of diversity. We sampled 192 sites distributed across 18 landscapes (each 50 km2) in Paragominas, eastern Brazilian Amazon, covering ca. 20,000 km2. We sampled from undisturbed primary forest through varyingly disturbed primary forests, secondary forests, pastures and mechanised agriculture, following a gradient of decreasing total aboveground biomass. Irrespective of forest disturbance class, ant species richness was almost twice as high in forests when compared to production areas. In contrast, ant species composition showed continuous variation from primary forest to intensive agriculture, following a gradient of aboveground biomass. Ant species richness at all spatial scales increased with primary forest cover in the surrounding landscapes. We highlight the limited value of species richness as an indicator of changes in habitat quality, reinforcing calls to consider species composition in assessments of forest dis... Mostrar Tudo |
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Thesagro: |
Biodiversidade; Conservação; Desmatamento; Floresta; Floresta Tropical. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02564naa a2200265 a 4500
001 2061806
005 2022-05-20
008 2016 bl uuuu u00u1 u #d
100 1 $aSOLAR, R. R. de C.
245 $aBiodiversity consequences of land-use change and forest disturbance in the Amazon$bA multi-scale assessment using ant communities.$h[electronic resource]
260 $c2016
520 $aQuantifying and understanding the main drivers of biodiversity responses to human disturbances at multiple scales is key to foster effective conservation plans and management systems. Here we report on detailed regional assessment of the response of ant communities to land-use change and forest disturbance in the Brazilian Amazon. We aimed to explore the effects of land-use intensification at both site and landscape scales, examining variation in ant species richness and composition, and asking which set of environmental variables best predict observed patterns of diversity. We sampled 192 sites distributed across 18 landscapes (each 50 km2) in Paragominas, eastern Brazilian Amazon, covering ca. 20,000 km2. We sampled from undisturbed primary forest through varyingly disturbed primary forests, secondary forests, pastures and mechanised agriculture, following a gradient of decreasing total aboveground biomass. Irrespective of forest disturbance class, ant species richness was almost twice as high in forests when compared to production areas. In contrast, ant species composition showed continuous variation from primary forest to intensive agriculture, following a gradient of aboveground biomass. Ant species richness at all spatial scales increased with primary forest cover in the surrounding landscapes. We highlight the limited value of species richness as an indicator of changes in habitat quality, reinforcing calls to consider species composition in assessments of forest disturbance. Taken together, our results reveal the unique biodiversity value of undisturbed primary forests, but also show that disturbed primary forests and secondary forests have high conservation value, and thus play an important role in regional conservation planning.
650 $aAmazonia
650 $aBiodiversidade
650 $aConservação
650 $aDesmatamento
650 $aFloresta
650 $aFloresta Tropical
700 1 $aBARLOW, J.
700 1 $aANDERSEN, A. N.
700 1 $aSCHOEREDER, J. H.
700 1 $aBERENGUER, E.
700 1 $aFERREIRA, J. N.
700 1 $aGARDNER, T. A.
773 $tBiological Conservation$gv. 197, p. 98-107, May 2016.
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Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
14/03/2017 |
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Data da última atualização: |
29/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SOARES, B. V.; NEVES, L. R.; FERREIRA, D. O.; OLIVEIRA, M. S. B.; CHAVES, F. C. M.; CHAGAS, E. C.; GONÇALVES, R. A.; TAVARES-DIAS, M. |
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Afiliação: |
BRUNA VIANA SOARES, UNIFAP; LIGIA RIGÔR NEVES, EMBRAPA AMAPÁ; DRIELLY OLIVEIRA FERREIRA, EMBRAPA AMAPÁ; MARCOS SIDNEY BRITO OLIVEIRA, UFOPA; FRANCISCO CELIO MAIA CHAVES, CPAA; EDSANDRA CAMPOS CHAGAS, CPAA; RAISSA ALVES GONÇALVES, INPA; MARCOS TAVARES-DIAS, CPAF-AP. |
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Título: |
Antiparasitic activity, histopathology and physiology of Colossoma macropomum (tambaqui) exposed to the essential oil of Lippia sidoides (Verbenaceae). |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 234, p. 49-56, Jan. 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.vetpar.2016.12.012 |
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Idioma: |
Português |
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Conteúdo: |
In vivo and in vitro antiparasitic activity of the essential oil of Lippia sidoides and blood and histological alterations were assessed in Colossoma macropomum (tambaqui). Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg/L were assayed in vitro against monogenoideans Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri from fish gills. Lippia sidoides essential oil concentrations of 320 and 160 mg/L were 100% effective against monogenoideans in 10 min and 1 h of exposure, respectively. However, the effectiveness of 100% concentrations of 80 mg/L and 40 mg/L occurred in 3 and 6 h, respectively. In the in vivo tests, juvenile fish were submitted to 60 min of baths with 10 mg/L and 15 min of baths with 20 mg/L of the essential oil of L. sidoides. These therapeutic baths were not efficient against Ichthyophthirius multifiliis, and monogenoideans present in the gills of C. macropomum. In addition, 10 and 20 mg/L of the essential oil of L. sidoides caused an anesthetic effect on the fish and did not influence total glucose and protein plasma levels; however, it decreased the number of total erythrocytes in fish exposed to the higher concentration of this essential oil. Severe alterations and irreversible damage were observed in the fish gills just after L. sidoides essential oil baths and after 24 h of recovery. The most recurrent lesions found were hyperplasia and fusion of the lamellar epithelium, vasodilation, detachment of the gill epithelium and lamellar aneurism, epithelial breakdown with hemorrhage, congestion, edema and necrosis, proliferation of the mucous cells and chloride cells and lamellar hypertrophy. Therefore, since the essential oil of L. sidoides has in vitro antiparasitic activity and low concentrations of it have shown toxic effects, the bioactive potential of its main chemical components should be investigated, as well as more efficient forms of its administration in therapeutic baths in order to eliminate fish parasites. MenosIn vivo and in vitro antiparasitic activity of the essential oil of Lippia sidoides and blood and histological alterations were assessed in Colossoma macropomum (tambaqui). Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg/L were assayed in vitro against monogenoideans Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri from fish gills. Lippia sidoides essential oil concentrations of 320 and 160 mg/L were 100% effective against monogenoideans in 10 min and 1 h of exposure, respectively. However, the effectiveness of 100% concentrations of 80 mg/L and 40 mg/L occurred in 3 and 6 h, respectively. In the in vivo tests, juvenile fish were submitted to 60 min of baths with 10 mg/L and 15 min of baths with 20 mg/L of the essential oil of L. sidoides. These therapeutic baths were not efficient against Ichthyophthirius multifiliis, and monogenoideans present in the gills of C. macropomum. In addition, 10 and 20 mg/L of the essential oil of L. sidoides caused an anesthetic effect on the fish and did not influence total glucose and protein plasma levels; however, it decreased the number of total erythrocytes in fish exposed to the higher concentration of this essential oil. Severe alterations and irreversible damage were observed in the fish gills just after L. sidoides essential oil baths and after 24 h of recovery. The most recurrent lesions found were hyperplasia and fusion of the lamellar epithelium, vasodilation, detachment of the gill epi... Mostrar Tudo |
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Palavras-Chave: |
Medicinal plant; Parasite; Planta medicina. |
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Thesagro: |
Parasito; Peixe de água doce; Sangue. |
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Thesaurus NAL: |
Blood; Freshwater fish. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02984naa a2200313 a 4500
001 2067004
005 2017-03-29
008 2017 bl --- 0-- u #d
024 7 $ahttp://dx.doi.org/10.1016/j.vetpar.2016.12.012$2DOI
100 1 $aSOARES, B. V.
245 $aAntiparasitic activity, histopathology and physiology of Colossoma macropomum (tambaqui) exposed to the essential oil of Lippia sidoides (Verbenaceae).$h[electronic resource]
260 $c2017
520 $aIn vivo and in vitro antiparasitic activity of the essential oil of Lippia sidoides and blood and histological alterations were assessed in Colossoma macropomum (tambaqui). Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg/L were assayed in vitro against monogenoideans Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri from fish gills. Lippia sidoides essential oil concentrations of 320 and 160 mg/L were 100% effective against monogenoideans in 10 min and 1 h of exposure, respectively. However, the effectiveness of 100% concentrations of 80 mg/L and 40 mg/L occurred in 3 and 6 h, respectively. In the in vivo tests, juvenile fish were submitted to 60 min of baths with 10 mg/L and 15 min of baths with 20 mg/L of the essential oil of L. sidoides. These therapeutic baths were not efficient against Ichthyophthirius multifiliis, and monogenoideans present in the gills of C. macropomum. In addition, 10 and 20 mg/L of the essential oil of L. sidoides caused an anesthetic effect on the fish and did not influence total glucose and protein plasma levels; however, it decreased the number of total erythrocytes in fish exposed to the higher concentration of this essential oil. Severe alterations and irreversible damage were observed in the fish gills just after L. sidoides essential oil baths and after 24 h of recovery. The most recurrent lesions found were hyperplasia and fusion of the lamellar epithelium, vasodilation, detachment of the gill epithelium and lamellar aneurism, epithelial breakdown with hemorrhage, congestion, edema and necrosis, proliferation of the mucous cells and chloride cells and lamellar hypertrophy. Therefore, since the essential oil of L. sidoides has in vitro antiparasitic activity and low concentrations of it have shown toxic effects, the bioactive potential of its main chemical components should be investigated, as well as more efficient forms of its administration in therapeutic baths in order to eliminate fish parasites.
650 $aBlood
650 $aFreshwater fish
650 $aParasito
650 $aPeixe de água doce
650 $aSangue
653 $aMedicinal plant
653 $aParasite
653 $aPlanta medicina
700 1 $aNEVES, L. R.
700 1 $aFERREIRA, D. O.
700 1 $aOLIVEIRA, M. S. B.
700 1 $aCHAVES, F. C. M.
700 1 $aCHAGAS, E. C.
700 1 $aGONÇALVES, R. A.
700 1 $aTAVARES-DIAS, M.
773 $tVeterinary Parasitology$gv. 234, p. 49-56, Jan. 2017.
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