| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Territorial. |
|
Data corrente: |
01/07/2004 |
|
Data da última atualização: |
22/07/2014 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
CARVALHO, J. R. P. de; MEAD, R. |
|
Afiliação: |
1: Embrapa-NMA; 2: Universidade de Reading-UK. |
|
Título: |
Comparison among three criteria to test the equality of correlation coeficients. |
|
Ano de publicação: |
1992 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v. 27, n. 6, p. 785-795, jun. 1992. |
|
Descrição Física: |
folhas avulsas, il., A5 |
|
Idioma: |
Português |
|
Conteúdo: |
Neste trabalho, o Teste da Razão de Máxima Verossimilhança é apresentado como um eficiente procedimento para testar a hipótese de igualdade de coeficientes de correção residual. Comparando o Teste da Razão de Máxima Verossimilhança com o Teste U-Fisher e a versão de Rao do mesmo teste, interessantes conclusões são encontradas. Os resultados e experimentais mostram que o Teste da Razão da Máxima Verossimilhança rejeita a hipótese de nulidade, com maior poder, em um número maior de vêzes quando comparado aos testes U-Fisher e H-Rao. |
|
Palavras-Chave: |
Coeficiente de correlação; Estimador de Máxima Verossimilhança; Parcelas-subdivididas; Poder observado; Teste da Razão de Máxima Verossimilhança. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/105234/1/1574.pdf
|
|
Marc: |
LEADER 01241naa a2200205 a 4500
001 1017360
005 2014-07-22
008 1992 bl uuuu u00u1 u #d
100 1 $aCARVALHO, J. R. P. de
245 $aComparison among three criteria to test the equality of correlation coeficients.
260 $c1992
300 $cfolhas avulsas, il., A5
520 $aNeste trabalho, o Teste da Razão de Máxima Verossimilhança é apresentado como um eficiente procedimento para testar a hipótese de igualdade de coeficientes de correção residual. Comparando o Teste da Razão de Máxima Verossimilhança com o Teste U-Fisher e a versão de Rao do mesmo teste, interessantes conclusões são encontradas. Os resultados e experimentais mostram que o Teste da Razão da Máxima Verossimilhança rejeita a hipótese de nulidade, com maior poder, em um número maior de vêzes quando comparado aos testes U-Fisher e H-Rao.
653 $aCoeficiente de correlação
653 $aEstimador de Máxima Verossimilhança
653 $aParcelas-subdivididas
653 $aPoder observado
653 $aTeste da Razão de Máxima Verossimilhança
700 1 $aMEAD, R.
773 $tPesquisa Agropecuária Brasileira, Brasília$gv. 27, n. 6, p. 785-795, jun. 1992.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Territorial (CNPM) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
06/08/2015 |
|
Data da última atualização: |
06/08/2015 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
BARTZA, M. L. C.; BROWN, G. G.; ROSA, M. G. da; KLAUBERG FILHO, O.; JAMES, S. W.; DECAËNS, T.; BARETTA, D. |
|
Afiliação: |
Marie Luise Carolina Bartza, Universidade Positivo; GEORGE GARDNER BROWN, CNPF; Marcio Gonçalves da Rosa, Universidade do Estado de Santa Catarina; Osmar Klauberg Filho, Universidade do Estado de Santa Catarina; Samuel Wooster James, Univeristy of Iowa; Thibaud Decaëns, Université de Rouen; Dilmar Baretta, Universidade do Estado de Santa Catarina. |
|
Título: |
Earthworm richness in land-use systems in Santa Catarina, Brazil. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
Applied Soil Ecology, v. 83, p. 59-70, Nov. 2014. |
|
DOI: |
http://dx.doi.org/10.1016/j.apsoil.2014.03.003 |
|
Idioma: |
Inglês |
|
Notas: |
XVI International Colloquium on Soil Zoology & XIII International Colloquium on Apterygota, 2012, Coimbra. Selected papers. |
|
Conteúdo: |
Brazil is a megadiverse country from which around 10% of all species are known. However, many areasin Brazil have not been adequately studied, particularly for soil animals. This includes the state of SantaCatarina, where only 18 of the approximately 300 known Brazilian earthworm species occur, and wherevery little is known of the impacts of land use management on earthworm populations (density anddiversity). Therefore, the aim of this study was to evaluate earthworm species richness in five differentland-use systems (LUS) with increasing anthropogenic impact: native forest (NF), eucalyptus plantation(EP), pasture (PA), integrated crop-livestock (ICL) and no-tillage cropping (NT), in six counties, threeeach from the Western and Plateau regions of the state. Nine monoliths of 25 cm × 25 cm × 20 cm depthwere sampled at each site and worms hand sorted. Qualitative samples were also taken by digging atleast 20 holes per site to improve the likelihood of collecting rare species. Samples were taken in theWinter and Summer months of 2011?2012 (July?August 2011, December 2011?January 2012). Contraryto expectations, species richness was higher in LUS with higher (ICL and NT = 15 and 17 spp.) vs. loweranthropogenic impacts (EP, PA, NF = 9?10 spp.), mainly due to the presence of exotic species in the crop-ping systems. Native species predominated in PA and NF, although natives were also found in highlydisturbed ecosystems (NT, ICL) and in the West region all worms collected in NT were native. In total24 species were identified in all LUS, with 19 native species, including several that were new to science.Several species were collected exclusively in each region, and overall qualitative samples yielded 24species while quantitative samples only 16. Therefore, qualitative sampling appears to be more effectivein determining earthworm species richness at regional levels, although quantitative samples are a usefuladdition when LUS are compared within a region, and if abundance and diversity index calculations areneeded. MenosBrazil is a megadiverse country from which around 10% of all species are known. However, many areasin Brazil have not been adequately studied, particularly for soil animals. This includes the state of SantaCatarina, where only 18 of the approximately 300 known Brazilian earthworm species occur, and wherevery little is known of the impacts of land use management on earthworm populations (density anddiversity). Therefore, the aim of this study was to evaluate earthworm species richness in five differentland-use systems (LUS) with increasing anthropogenic impact: native forest (NF), eucalyptus plantation(EP), pasture (PA), integrated crop-livestock (ICL) and no-tillage cropping (NT), in six counties, threeeach from the Western and Plateau regions of the state. Nine monoliths of 25 cm × 25 cm × 20 cm depthwere sampled at each site and worms hand sorted. Qualitative samples were also taken by digging atleast 20 holes per site to improve the likelihood of collecting rare species. Samples were taken in theWinter and Summer months of 2011?2012 (July?August 2011, December 2011?January 2012). Contraryto expectations, species richness was higher in LUS with higher (ICL and NT = 15 and 17 spp.) vs. loweranthropogenic impacts (EP, PA, NF = 9?10 spp.), mainly due to the presence of exotic species in the crop-ping systems. Native species predominated in PA and NF, although natives were also found in highlydisturbed ecosystems (NT, ICL) and in the West region all worms collected in NT were ... Mostrar Tudo |
|
Palavras-Chave: |
Agricultural sites; Atlantic rainforest; Earthworm; Floresta Atlântica; Land-use intensification; Pasture; Zona agrícola. |
|
Thesagro: |
Biodiversidade; Minhoca; Pastagem; Uso da Terra. |
|
Thesaurus NAL: |
biodiversity; Oligochaeta. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03188naa a2200373 a 4500
001 2021458
005 2015-08-06
008 2014 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.apsoil.2014.03.003$2DOI
100 1 $aBARTZA, M. L. C.
245 $aEarthworm richness in land-use systems in Santa Catarina, Brazil.$h[electronic resource]
260 $c2014
500 $aXVI International Colloquium on Soil Zoology & XIII International Colloquium on Apterygota, 2012, Coimbra. Selected papers.
520 $aBrazil is a megadiverse country from which around 10% of all species are known. However, many areasin Brazil have not been adequately studied, particularly for soil animals. This includes the state of SantaCatarina, where only 18 of the approximately 300 known Brazilian earthworm species occur, and wherevery little is known of the impacts of land use management on earthworm populations (density anddiversity). Therefore, the aim of this study was to evaluate earthworm species richness in five differentland-use systems (LUS) with increasing anthropogenic impact: native forest (NF), eucalyptus plantation(EP), pasture (PA), integrated crop-livestock (ICL) and no-tillage cropping (NT), in six counties, threeeach from the Western and Plateau regions of the state. Nine monoliths of 25 cm × 25 cm × 20 cm depthwere sampled at each site and worms hand sorted. Qualitative samples were also taken by digging atleast 20 holes per site to improve the likelihood of collecting rare species. Samples were taken in theWinter and Summer months of 2011?2012 (July?August 2011, December 2011?January 2012). Contraryto expectations, species richness was higher in LUS with higher (ICL and NT = 15 and 17 spp.) vs. loweranthropogenic impacts (EP, PA, NF = 9?10 spp.), mainly due to the presence of exotic species in the crop-ping systems. Native species predominated in PA and NF, although natives were also found in highlydisturbed ecosystems (NT, ICL) and in the West region all worms collected in NT were native. In total24 species were identified in all LUS, with 19 native species, including several that were new to science.Several species were collected exclusively in each region, and overall qualitative samples yielded 24species while quantitative samples only 16. Therefore, qualitative sampling appears to be more effectivein determining earthworm species richness at regional levels, although quantitative samples are a usefuladdition when LUS are compared within a region, and if abundance and diversity index calculations areneeded.
650 $abiodiversity
650 $aOligochaeta
650 $aBiodiversidade
650 $aMinhoca
650 $aPastagem
650 $aUso da Terra
653 $aAgricultural sites
653 $aAtlantic rainforest
653 $aEarthworm
653 $aFloresta Atlântica
653 $aLand-use intensification
653 $aPasture
653 $aZona agrícola
700 1 $aBROWN, G. G.
700 1 $aROSA, M. G. da
700 1 $aKLAUBERG FILHO, O.
700 1 $aJAMES, S. W.
700 1 $aDECAËNS, T.
700 1 $aBARETTA, D.
773 $tApplied Soil Ecology$gv. 83, p. 59-70, Nov. 2014.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
