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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
24/08/2012 |
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Data da última atualização: |
20/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARICHAL, R.; GRIMALDI, M.; MATHIEU, J.; BROWN, G. G.; SILVA JUNIOR, M. L. da; PRAXEDES, C.; MARTINS, M. B.; VELASQUEZ, E.; LAVELLE, P. |
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Afiliação: |
RAPHAEL MARICHAL, Museu Paraense Emilio Goeldi; MICHEL GRIMALDI, RD, UMR Bioemco; JEROME MATHIEU, UPMC Université Paris; GEORGE GARDNER BROWN, CNPF; MARIO LOPES DA SILVA JUNIOR, UFRA; CATARINA PRAXEDES, Museu Paraense Emilio Goeldi; MARLUCIA B. MARTINS, Museu Paraense Emilio Goeldi; ELENA VELASQUEZ, Universidad Nacional de Colombia; PATRICK LAVELLE, Centro Internacional de Agricultura Tropical (CIAT). |
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Título: |
Is invasion of deforested Amazonia by the earthworm Pontoscolex corethrurus driven by soil texture and chemical properties? |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Pedobiologia, v. 55, p. 233-240, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Pontoscolex corethurus (Müller, 1857) is the most common invasive earthworm in disturbed lands in the tropics. Conditions required for its successful colonization of new plots are still not understood since some areas can be invaded while others, sometimes in the vicinity, are not. We kept newly hatched P. corethrurus in a wide range of Amazonian soils where population densities had been previously evaluated. We identified soil conditions that best sustain survival, soil ingestion and growth of P. corethrurus in controlled laboratory conditions and checked if presence/absence in the field was consistent with laboratory observations. While pH and Ca influenced survival; Mg and C content were the greatest determinants for growth and C:P, Mg and clay contents determined soil ingestion rates. Soil ingestion and growth rate were correlated. There were no differences in earthworm soil ingestion rates between invaded and non-invaded soils. However, growth rate and survival were higher in soils from invaded sites than in soils from non invaded sites, indicating that soil quality may play a role in the invasion process. We identified two cases where P. corethrurus did not occur: (1) unfavourable soil texture and chemical properties, but also some areas with and (2) favourable soil texture and chemical properties but no invasion. Other parameters, like vegetation cover (grass or trees), soil structure and compaction, soil hydrologic processes or biotic resistance of native earthworm communities could potentially also be key elements for understanding why P. corethrurus populations occur in some sites and not in others. MenosPontoscolex corethurus (Müller, 1857) is the most common invasive earthworm in disturbed lands in the tropics. Conditions required for its successful colonization of new plots are still not understood since some areas can be invaded while others, sometimes in the vicinity, are not. We kept newly hatched P. corethrurus in a wide range of Amazonian soils where population densities had been previously evaluated. We identified soil conditions that best sustain survival, soil ingestion and growth of P. corethrurus in controlled laboratory conditions and checked if presence/absence in the field was consistent with laboratory observations. While pH and Ca influenced survival; Mg and C content were the greatest determinants for growth and C:P, Mg and clay contents determined soil ingestion rates. Soil ingestion and growth rate were correlated. There were no differences in earthworm soil ingestion rates between invaded and non-invaded soils. However, growth rate and survival were higher in soils from invaded sites than in soils from non invaded sites, indicating that soil quality may play a role in the invasion process. We identified two cases where P. corethrurus did not occur: (1) unfavourable soil texture and chemical properties, but also some areas with and (2) favourable soil texture and chemical properties but no invasion. Other parameters, like vegetation cover (grass or trees), soil structure and compaction, soil hydrologic processes or biotic resistance of native earthworm c... Mostrar Tudo |
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Thesagro: |
Minhoca. |
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Thesaurus Nal: |
Amazonia; Pontoscolex corethrurus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02376naa a2200253 a 4500
001 1932145
005 2015-02-20
008 2012 bl uuuu u00u1 u #d
100 1 $aMARICHAL, R.
245 $aIs invasion of deforested Amazonia by the earthworm Pontoscolex corethrurus driven by soil texture and chemical properties?$h[electronic resource]
260 $c2012
520 $aPontoscolex corethurus (Müller, 1857) is the most common invasive earthworm in disturbed lands in the tropics. Conditions required for its successful colonization of new plots are still not understood since some areas can be invaded while others, sometimes in the vicinity, are not. We kept newly hatched P. corethrurus in a wide range of Amazonian soils where population densities had been previously evaluated. We identified soil conditions that best sustain survival, soil ingestion and growth of P. corethrurus in controlled laboratory conditions and checked if presence/absence in the field was consistent with laboratory observations. While pH and Ca influenced survival; Mg and C content were the greatest determinants for growth and C:P, Mg and clay contents determined soil ingestion rates. Soil ingestion and growth rate were correlated. There were no differences in earthworm soil ingestion rates between invaded and non-invaded soils. However, growth rate and survival were higher in soils from invaded sites than in soils from non invaded sites, indicating that soil quality may play a role in the invasion process. We identified two cases where P. corethrurus did not occur: (1) unfavourable soil texture and chemical properties, but also some areas with and (2) favourable soil texture and chemical properties but no invasion. Other parameters, like vegetation cover (grass or trees), soil structure and compaction, soil hydrologic processes or biotic resistance of native earthworm communities could potentially also be key elements for understanding why P. corethrurus populations occur in some sites and not in others.
650 $aAmazonia
650 $aPontoscolex corethrurus
650 $aMinhoca
700 1 $aGRIMALDI, M.
700 1 $aMATHIEU, J.
700 1 $aBROWN, G. G.
700 1 $aSILVA JUNIOR, M. L. da
700 1 $aPRAXEDES, C.
700 1 $aMARTINS, M. B.
700 1 $aVELASQUEZ, E.
700 1 $aLAVELLE, P.
773 $tPedobiologia$gv. 55, p. 233-240, 2012.
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Embrapa Florestas (CNPF) |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
16/09/2019 |
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Data da última atualização: |
03/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
FONTANA, C.; SANTINI-JUNIOR, L.; OLMEDO, G. M.; BOTOSSO, P. C.; TOMAZELLO-FILHO, M.; OLIVEIRA, J. M. |
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Afiliação: |
Cláudia Fontana, Universidade do Vale Rio dos Sinos; Luiz Santini-Junior, ESALQ; Gabriela Morais Olmedo, Universidade do Vale Rio dos Sinos; PAULO CESAR BOTOSSO, CNPF; Mario Tomazello-Filho, ESALQ; Juliano Morales Oliveira, Universidade do Vale Rio dos Sinos. |
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Título: |
Assessment of the dendrochronological potential of Licaria bahiana Kurz, an endemic laurel of lowland Atlantic forests in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Acta Botanica Brasilica, v. 33, n. 3, p. 454-464. July/Sept. 2019. |
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DOI: |
10.1590/0102-33062019abb0028 |
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Idioma: |
Inglês |
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Conteúdo: |
The Atlantic Forest of southeastern Brazil has been considered to have the highest number of tree species per hectare in the world. Assessing the influence of climate on tropical tree species is a priority in the face of ongoing climate change, and for which dendrochronological studies have been important. We address the dendrochronological potential of Licaria bahiana Kurz (Lauraceae), an endemic species of the Atlantic forests. We studied growth ring anatomy of L. bahiana and applied dendrochronological methods to investigate how short-term variation in climate affect its radial growth. Distinct growth rings were observed in all individuals and demarcated by darker tangential fiber zones in latewood. Trees showed high climatic sensitivity (0.48) and growth synchrony (intercorrelation r = 0.69; rbar = 0.38). Radial growth was negatively influenced by high temperatures at the beginning of the current growing season (r = -0.46) and by excessive rainfall at the end of the current growing season (r = -0.29), which are periods that correspond to the phenological reproductive phases of the species. Climate anomalies during this period may alter the tradeoff between growth and reproduction, in favor of the latter. |
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Palavras-Chave: |
Anéis de crescimento; Dendroecologia; Dendroecology; Floresta de Tabuleiro; Licaria bahiana; Tabuleiro forests; Tree rings. |
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Thesagro: |
Anatomia; Lauraceae; Madeira. |
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Thesaurus NAL: |
Climate; Wood anatomy. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/201946/1/2019-P.Botosso-ABB-Assessment.pdf
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Marc: |
LEADER 02239naa a2200337 a 4500
001 2112180
005 2019-10-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/0102-33062019abb0028$2DOI
100 1 $aFONTANA, C.
245 $aAssessment of the dendrochronological potential of Licaria bahiana Kurz, an endemic laurel of lowland Atlantic forests in Brazil.$h[electronic resource]
260 $c2019
520 $aThe Atlantic Forest of southeastern Brazil has been considered to have the highest number of tree species per hectare in the world. Assessing the influence of climate on tropical tree species is a priority in the face of ongoing climate change, and for which dendrochronological studies have been important. We address the dendrochronological potential of Licaria bahiana Kurz (Lauraceae), an endemic species of the Atlantic forests. We studied growth ring anatomy of L. bahiana and applied dendrochronological methods to investigate how short-term variation in climate affect its radial growth. Distinct growth rings were observed in all individuals and demarcated by darker tangential fiber zones in latewood. Trees showed high climatic sensitivity (0.48) and growth synchrony (intercorrelation r = 0.69; rbar = 0.38). Radial growth was negatively influenced by high temperatures at the beginning of the current growing season (r = -0.46) and by excessive rainfall at the end of the current growing season (r = -0.29), which are periods that correspond to the phenological reproductive phases of the species. Climate anomalies during this period may alter the tradeoff between growth and reproduction, in favor of the latter.
650 $aClimate
650 $aWood anatomy
650 $aAnatomia
650 $aLauraceae
650 $aMadeira
653 $aAnéis de crescimento
653 $aDendroecologia
653 $aDendroecology
653 $aFloresta de Tabuleiro
653 $aLicaria bahiana
653 $aTabuleiro forests
653 $aTree rings
700 1 $aSANTINI-JUNIOR, L.
700 1 $aOLMEDO, G. M.
700 1 $aBOTOSSO, P. C.
700 1 $aTOMAZELLO-FILHO, M.
700 1 $aOLIVEIRA, J. M.
773 $tActa Botanica Brasilica$gv. 33, n. 3, p. 454-464. July/Sept. 2019.
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