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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/01/2016 |
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Data da última atualização: |
30/05/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LEHN, C. R.; SALIS, S. M. de; MATTOS, P. P. de. |
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Afiliação: |
Carlos Rodrigo Lehn, Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, Campus Panambi, Erechim; SUZANA MARIA DE SALIS, CPAP; PATRICIA POVOA DE MATTOS, CNPF. |
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Título: |
Ecological aspects of Langsdorffia hypogaea (Balanophoraceae) parasitism in the Pantanal wetlands. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Acta Botanica Brasilica, v. 29, n. 4, p. 608-612, 2015. |
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DOI: |
10.1590/0102-33062015abb0216 |
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Idioma: |
Inglês |
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Conteúdo: |
Most studies on holoparasitic plants have focused on taxonomic or systematic issues. The objective of this study
was to examine the ecological aspects of parasitism of Langsdorffia hypogaea (Balanophoraceae) in the Pantanal
wetlands. Individuals of L. hypogaea were dug out by hand and the host trees were identified. Eighty-eight percent
of host trees exhibited zoochory dispersal syndrome. Protium heptaphyllum and Cordiera sessilis represented 50% of
the sampled trees. Both species are evergreen and are preferentially shade-tolerant species growing under the canopy
of other trees. Fecal sample of collared peccaries (Pecari tajacu) had seeds from both the host tree (Protium sp.) and
the parasite L. hypogaea. We therefore propose the hypothesis that P. tajacu play a role as a seed disperser and may
affect root parasitism |
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Palavras-Chave: |
Parasite; Root; Savanna. |
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Thesaurus Nal: |
host specificity; Pantanal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01470naa a2200217 a 4500
001 2032747
005 2016-05-30
008 2015 bl --- 0-- u #d
024 7 $a10.1590/0102-33062015abb0216$2DOI
100 1 $aLEHN, C. R.
245 $aEcological aspects of Langsdorffia hypogaea (Balanophoraceae) parasitism in the Pantanal wetlands.$h[electronic resource]
260 $c2015
520 $aMost studies on holoparasitic plants have focused on taxonomic or systematic issues. The objective of this study was to examine the ecological aspects of parasitism of Langsdorffia hypogaea (Balanophoraceae) in the Pantanal wetlands. Individuals of L. hypogaea were dug out by hand and the host trees were identified. Eighty-eight percent of host trees exhibited zoochory dispersal syndrome. Protium heptaphyllum and Cordiera sessilis represented 50% of the sampled trees. Both species are evergreen and are preferentially shade-tolerant species growing under the canopy of other trees. Fecal sample of collared peccaries (Pecari tajacu) had seeds from both the host tree (Protium sp.) and the parasite L. hypogaea. We therefore propose the hypothesis that P. tajacu play a role as a seed disperser and may affect root parasitism
650 $ahost specificity
650 $aPantanal
653 $aParasite
653 $aRoot
653 $aSavanna
700 1 $aSALIS, S. M. de
700 1 $aMATTOS, P. P. de
773 $tActa Botanica Brasilica$gv. 29, n. 4, p. 608-612, 2015.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
14/12/2000 |
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Data da última atualização: |
14/12/2000 |
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Autoria: |
STOYAN, H.; DE-POLLI, H.; BOHM, S.; ROBERTSON, G. P.; PAUL, E. A. |
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Título: |
Spatial heterogeneity of soil respiration and related properties at the plant scale. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Plant and Soil, Dordrecht, v.222, p. 203-214, 2000. |
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Idioma: |
Inglês |
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Conteúdo: |
Geostatistical techniques were used to quantify the scale and degree of soil heterogeneity in 2 m2 plots around 9-year-old poplar trees and within a wheat field. Samples were taken during two years, on an unaligned grid, for analysis of soil respiration, C and N content, available P, gravimetric moisture, pH, nitrification potential, and root biomass. Kriged maps of soil respiration, moisture, and C content showed strong spatial structure associated with poplar trees but not with wheat rows. All soil properties showed higher autocorrelation in June than in April. Isopleth patchiness for all variates was less in June. This was associated with lower respiration rates due to lower litter decomposition. From the degree and scale of heterogeneity seen in this study, we conclude that the main causes of soil heterogeneity at this scale (2 m2) are likely to be found at micro scales controlled in part by plant root and plant residue patterns. These must be understood in the evaluation of ecosystem processes.
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Palavras-Chave: |
C; Chemicophysical properties; N. |
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Thesagro: |
Carbono; Nitrogênio; Ph; Propriedade Físico-Química; Respiração do Solo. |
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Thesaurus NAL: |
carbon; nitrogen; soil respiration. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01799naa a2200301 a 4500
001 1597245
005 2000-12-14
008 2000 bl --- 0-- u #d
100 1 $aSTOYAN, H.
245 $aSpatial heterogeneity of soil respiration and related properties at the plant scale.
260 $c2000
520 $aGeostatistical techniques were used to quantify the scale and degree of soil heterogeneity in 2 m2 plots around 9-year-old poplar trees and within a wheat field. Samples were taken during two years, on an unaligned grid, for analysis of soil respiration, C and N content, available P, gravimetric moisture, pH, nitrification potential, and root biomass. Kriged maps of soil respiration, moisture, and C content showed strong spatial structure associated with poplar trees but not with wheat rows. All soil properties showed higher autocorrelation in June than in April. Isopleth patchiness for all variates was less in June. This was associated with lower respiration rates due to lower litter decomposition. From the degree and scale of heterogeneity seen in this study, we conclude that the main causes of soil heterogeneity at this scale (2 m2) are likely to be found at micro scales controlled in part by plant root and plant residue patterns. These must be understood in the evaluation of ecosystem processes.
650 $acarbon
650 $anitrogen
650 $asoil respiration
650 $aCarbono
650 $aNitrogênio
650 $aPh
650 $aPropriedade Físico-Química
650 $aRespiração do Solo
653 $aC
653 $aChemicophysical properties
653 $aN
700 1 $aDE-POLLI, H.
700 1 $aBOHM, S.
700 1 $aROBERTSON, G. P.
700 1 $aPAUL, E. A.
773 $tPlant and Soil, Dordrecht$gv.222, p. 203-214, 2000.
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