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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
26/10/1993 |
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Data da última atualização: |
26/01/2006 |
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Autoria: |
SANTOS, P. C. dos. |
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Título: |
Herdabilidade e correlações do rendimento com seus componentes, em dois cruzamentos de feijão-comum (Phaseolus vulgaris L.). |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Viçosa: UFV, 1981. |
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Páginas: |
60 p. |
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Idioma: |
Português |
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Notas: |
Tese Mestrado. |
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Conteúdo: |
Foram estudadas em Viçosa, MG, em dois cruzamentos de feijão as herdabilidades e as correlações do rendimento com seus componentes. As variedades utilizadas foram: Preto Sessenta Dias 40; Preto Sessenta Dias 53; Ricopardo 896, tendo sido feitos os seguintes cruzamentos: Preto Sessenta Dias 40 x Ricopardo 896 e Preto Sessenta Dias 53 x Ricopardo 896. |
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Palavras-Chave: |
Componente; Correlação; Herdabilidade. |
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Thesagro: |
Cruzamento; Feijão; Hibridação; Phaseolus Vulgaris; Produção. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00988nam a2200229 a 4500
001 1192759
005 2006-01-26
008 1981 bl uuuu m 00u1 u #d
100 1 $aSANTOS, P. C. dos
245 $aHerdabilidade e correlações do rendimento com seus componentes, em dois cruzamentos de feijão-comum (Phaseolus vulgaris L.).
260 $aViçosa: UFV$c1981
300 $a60 p.
500 $aTese Mestrado.
520 $aForam estudadas em Viçosa, MG, em dois cruzamentos de feijão as herdabilidades e as correlações do rendimento com seus componentes. As variedades utilizadas foram: Preto Sessenta Dias 40; Preto Sessenta Dias 53; Ricopardo 896, tendo sido feitos os seguintes cruzamentos: Preto Sessenta Dias 40 x Ricopardo 896 e Preto Sessenta Dias 53 x Ricopardo 896.
650 $aCruzamento
650 $aFeijão
650 $aHibridação
650 $aPhaseolus Vulgaris
650 $aProdução
653 $aComponente
653 $aCorrelação
653 $aHerdabilidade
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
02/12/2021 |
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Data da última atualização: |
02/12/2021 |
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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: |
OLIVEIRA, M. R.; TOMAS, W. M.; GUEDES, N. M. R.; PETERSON, A. T.; SZABO, J. K.; SANTOS JÚNIOR, A.; CAMILO, A. R.; PADOVANI, C. R.; GARCIA, L. C. |
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Afiliação: |
M. R. OLIVEIRA, Universidade Federal de Mato Grosso do Sul; WALFRIDO MORAES TOMAS, CPAP; N. M. R. GUEDES, Universidade Anhanguera-Uniderp; A.T. PETERSON, University of Kansas; J. K. SZABO, Universidade Federal da Bahia; A. SANTOS JÚNIOR, Instituto Federal de Educação Ciência e Tecnlogia de Rôndonia; A. R. CAMILO, Smithsonian Conservation Biology Institute; CARLOS ROBERTO PADOVANI, CPAP; L. C. GARCIA, Universidade Federal de Mato Grosso do Sul. |
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Título: |
The relationship between scale and predictor variables in species distribution models applied to conservation. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Biodiversity and Conservation, v. 30, p. 1971-1990, 2021. |
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DOI: |
https://doi.org/10.1007/s10531-021-02176-w |
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Idioma: |
Português |
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Conteúdo: |
Abstract: Species distribution models have been used to assist decision-making in many different aspects of conservation, restoration, and environmental management. However, to apply species distribution models effectively, we need to discriminate between suitable and unsuitable environments and the models need to be developed at fine scales (i.e. covering small areas at a fine resolution). These characteristics allow more precise decision-making for heterogeneous environments in smaller areas, such as biomes. We also need to understand the potential limiting factors in relation to these models better, including the effects of sample bias in species occurrence records and the potential mismatch between the scale at which the models were built and the scale at which the predictor variables interact with species occurrence. Here we evaluate the effects of two methods used to reduce bias (geographic vs. environmental filters) and three predictor variable types (climactic, local and biotic) on model predictions. We explore these issues for the hyacinth macaw (Anodorhynchus hyacinthinus), a globally vulnerable species in the Pantanal biome of central South America. We consider broad-scale variables, local-scale habitat associations, and the interactions of the macaw with two plant species that provide its food and nesting location. Our results show that using broad-scale climate variables for local-scale models (i.e., models with a fine resolution with a small extent) can generate predictive distribution models that underpredict suitability. Using local and biotic variables generates more accurate models with predictions consistent with the known distribution of the bird species. Although not commonly used, local-scale variables strongly affect model performance by increasing ccuracy, reducing omission error, and leading to more conservative predictions. On the other hand, these methods lead to variable results in relation to bias reduction, with their efficiency depending on the amount of sampling bias in the occurrence records. In conclusion, local variables and the method of bias reduction play an important role in species distribution models. Fine resolution models constructed at the local scale for small areas show the greatest skill in predicting species distribution. MenosAbstract: Species distribution models have been used to assist decision-making in many different aspects of conservation, restoration, and environmental management. However, to apply species distribution models effectively, we need to discriminate between suitable and unsuitable environments and the models need to be developed at fine scales (i.e. covering small areas at a fine resolution). These characteristics allow more precise decision-making for heterogeneous environments in smaller areas, such as biomes. We also need to understand the potential limiting factors in relation to these models better, including the effects of sample bias in species occurrence records and the potential mismatch between the scale at which the models were built and the scale at which the predictor variables interact with species occurrence. Here we evaluate the effects of two methods used to reduce bias (geographic vs. environmental filters) and three predictor variable types (climactic, local and biotic) on model predictions. We explore these issues for the hyacinth macaw (Anodorhynchus hyacinthinus), a globally vulnerable species in the Pantanal biome of central South America. We consider broad-scale variables, local-scale habitat associations, and the interactions of the macaw with two plant species that provide its food and nesting location. Our results show that using broad-scale climate variables for local-scale models (i.e., models with a fine resolution with a small extent) can generat... Mostrar Tudo |
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Thesagro: |
Arara. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03061naa a2200241 a 4500
001 2136976
005 2021-12-02
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10531-021-02176-w$2DOI
100 1 $aOLIVEIRA, M. R.
245 $aThe relationship between scale and predictor variables in species distribution models applied to conservation.$h[electronic resource]
260 $c2021
520 $aAbstract: Species distribution models have been used to assist decision-making in many different aspects of conservation, restoration, and environmental management. However, to apply species distribution models effectively, we need to discriminate between suitable and unsuitable environments and the models need to be developed at fine scales (i.e. covering small areas at a fine resolution). These characteristics allow more precise decision-making for heterogeneous environments in smaller areas, such as biomes. We also need to understand the potential limiting factors in relation to these models better, including the effects of sample bias in species occurrence records and the potential mismatch between the scale at which the models were built and the scale at which the predictor variables interact with species occurrence. Here we evaluate the effects of two methods used to reduce bias (geographic vs. environmental filters) and three predictor variable types (climactic, local and biotic) on model predictions. We explore these issues for the hyacinth macaw (Anodorhynchus hyacinthinus), a globally vulnerable species in the Pantanal biome of central South America. We consider broad-scale variables, local-scale habitat associations, and the interactions of the macaw with two plant species that provide its food and nesting location. Our results show that using broad-scale climate variables for local-scale models (i.e., models with a fine resolution with a small extent) can generate predictive distribution models that underpredict suitability. Using local and biotic variables generates more accurate models with predictions consistent with the known distribution of the bird species. Although not commonly used, local-scale variables strongly affect model performance by increasing ccuracy, reducing omission error, and leading to more conservative predictions. On the other hand, these methods lead to variable results in relation to bias reduction, with their efficiency depending on the amount of sampling bias in the occurrence records. In conclusion, local variables and the method of bias reduction play an important role in species distribution models. Fine resolution models constructed at the local scale for small areas show the greatest skill in predicting species distribution.
650 $aArara
700 1 $aTOMAS, W. M.
700 1 $aGUEDES, N. M. R.
700 1 $aPETERSON, A. T.
700 1 $aSZABO, J. K.
700 1 $aSANTOS JÚNIOR, A.
700 1 $aCAMILO, A. R.
700 1 $aPADOVANI, C. R.
700 1 $aGARCIA, L. C.
773 $tBiodiversity and Conservation$gv. 30, p. 1971-1990, 2021.
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