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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: |
22/08/2006 |
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Data da última atualização: |
12/02/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PHILLIPS, P. D.; THOMPSON, I. S.; SILVA, J. N. M.; GARDINGEN, P. R. van; DEGEN, B. |
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Afiliação: |
P. D. PHILLIPS; I. S. THOMPSON; JOSE NATALINO MACEDO SILVA, CPATU; P. R. VAN GARDINGEN, UNIVERSITY OF EDINBURGH; B. DEGEN, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT. |
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Título: |
Scaling up models of tree competition for tropical forest population genetics simulation. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Ecological Modelling, v. 180, p. 419-434, 2004. |
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Descrição Física: |
il. |
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DOI: |
http://dx.doi.org/10.1016/j.ecolmodel.2004.04.029 |
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Idioma: |
Inglês |
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Conteúdo: |
Understanding the effects of logging activity on genetic diversity is an important aspect of establishing the sustainability of selective logging management operations in tropical forests. Genetic variation is affected by selective logging directly, through the removal of and damage to trees within the population, and indirectly, through a change in the forest structure and environment in which the remaining population lives. Eco-Gene is a population genetics model applied to tropical forests over a scale of hundreds of hectares. SYMFOR is a modelling framework for individual-based spatially explicit ecological and management models applied to tropical forests over a scale of 0.25 4 ha. We have linked the models to enable simulations using processes involved in both models. To overcome problems of scale, the spatially explicit competition index calculated in SYMFOR simulations has been modelled such that it can be applied at scales representing much larger areas for which the data are not available, as required by Eco-Gene. The competition index is modelled as a distribution on a grid-square basis, and implemented in the linked Eco-Gene/SYMFOR system. Each tree within a grid-square is given a ?relative competition? within the distribution, biased according to species. A competition index value is obtained for the tree by transforming the grid-square distribution to be relevant to the size of the tree, and extracting a value according to the tree?s relative competition within the distribution. The distribution and each tree?s relative competition within it change according to the effects of growth, mortality and logging activity. The model was calibrated using data from the Tapajós region of the Eastern Amazon forest. This paper describes the model, its calibration and validation and the implications of scaling up from an explicit representation to a modelled quantity. MenosUnderstanding the effects of logging activity on genetic diversity is an important aspect of establishing the sustainability of selective logging management operations in tropical forests. Genetic variation is affected by selective logging directly, through the removal of and damage to trees within the population, and indirectly, through a change in the forest structure and environment in which the remaining population lives. Eco-Gene is a population genetics model applied to tropical forests over a scale of hundreds of hectares. SYMFOR is a modelling framework for individual-based spatially explicit ecological and management models applied to tropical forests over a scale of 0.25 4 ha. We have linked the models to enable simulations using processes involved in both models. To overcome problems of scale, the spatially explicit competition index calculated in SYMFOR simulations has been modelled such that it can be applied at scales representing much larger areas for which the data are not available, as required by Eco-Gene. The competition index is modelled as a distribution on a grid-square basis, and implemented in the linked Eco-Gene/SYMFOR system. Each tree within a grid-square is given a ?relative competition? within the distribution, biased according to species. A competition index value is obtained for the tree by transforming the grid-square distribution to be relevant to the size of the tree, and extracting a value according to the tree?s relative competition within... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Competição de planta. |
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Thesagro: |
Extração da Madeira; 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 02663naa a2200253 a 4500
001 1408527
005 2025-02-12
008 2004 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.ecolmodel.2004.04.029$2DOI
100 1 $aPHILLIPS, P. D.
245 $aScaling up models of tree competition for tropical forest population genetics simulation.$h[electronic resource]
260 $c2004
300 $cil.
520 $aUnderstanding the effects of logging activity on genetic diversity is an important aspect of establishing the sustainability of selective logging management operations in tropical forests. Genetic variation is affected by selective logging directly, through the removal of and damage to trees within the population, and indirectly, through a change in the forest structure and environment in which the remaining population lives. Eco-Gene is a population genetics model applied to tropical forests over a scale of hundreds of hectares. SYMFOR is a modelling framework for individual-based spatially explicit ecological and management models applied to tropical forests over a scale of 0.25 4 ha. We have linked the models to enable simulations using processes involved in both models. To overcome problems of scale, the spatially explicit competition index calculated in SYMFOR simulations has been modelled such that it can be applied at scales representing much larger areas for which the data are not available, as required by Eco-Gene. The competition index is modelled as a distribution on a grid-square basis, and implemented in the linked Eco-Gene/SYMFOR system. Each tree within a grid-square is given a ?relative competition? within the distribution, biased according to species. A competition index value is obtained for the tree by transforming the grid-square distribution to be relevant to the size of the tree, and extracting a value according to the tree?s relative competition within the distribution. The distribution and each tree?s relative competition within it change according to the effects of growth, mortality and logging activity. The model was calibrated using data from the Tapajós region of the Eastern Amazon forest. This paper describes the model, its calibration and validation and the implications of scaling up from an explicit representation to a modelled quantity.
650 $aAmazonia
650 $aExtração da Madeira
650 $aFloresta Tropical
653 $aBrasil
653 $aCompetição de planta
700 1 $aTHOMPSON, I. S.
700 1 $aSILVA, J. N. M.
700 1 $aGARDINGEN, P. R. van
700 1 $aDEGEN, B.
773 $tEcological Modelling$gv. 180, p. 419-434, 2004.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 11 | |
| 5. |  | DUNISCH, O.; BAUCH, J.; GASPAROTTO, L.; NEVES, E.; AZEVEDO, C. de; LIMA, R. de; MORAIS, R. de. Environment-tree growth relationships of plantation grown tropical tree species as a basis for sustainable timber production in mixed culture systems in Central Amazonia. In: SHIFT - WORKSHOP, 3., 1998, Manaus. Proceedings... Bonn: BMBF, 1998. p. 399-411.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 6. | | DUNISCH, O.; BAUCH, J.; GASPAROTTO, L.; NEVES, E.; AZEVEDO, C. de; LIMA, R. de; MORAIS, R. de. Environment-tree growth relationships of plantation grown tropical tree species as a basis for sustainable timber production in mixed culture systems in central Amazonia. In: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentations and posters... Hamburg: GKSS, 1998. p. P23.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 8. | | DUNISCH, O.; BAUCH, J.; MULLER, M.; SCHWARZ, T.; POLACZCK, S.; GASPAROTTO, L.; NEVES, E.; AZEVEDO, C. de; LIMA, R. de; MORAIS, R. de. Investigations on tree species suitable for the recultivation of degraded land areas in Central Amazonia. In: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentations and posters... Hamburg: GKSS, 1998. p. C22.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 9. | | DÜNISCH, O.; BAUCH, J.; MÜLLER, M.; SCHWARZ, T.; POLACZEK, S.; GASPAROTTO, L.; NEVES, E.; AZEVEDO, C. de; LIMA, R. de; MORAIS, R. de. Investigations on tree species suitable for the recultivation of degraded land areas in Central Amazonia. In: SYMPOSIUM TROPISCHE NUTZPFLANZEN: BIOLOGIE, OKOLOGIE, OKONOMIE, 2., 1997, Hamburg. Abstracts der Vortrage und Poster... Hamburg: University, 1997. p. 52.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 10. | | MORAIS, R. de M.; SANTANA, G. M.; LELIS, R. C. C.; PAES, J. B.; SCHUELER, M. V. E.; MORBECK, F. L. Produção e desempenho de carvão ativado fisicamente a partir de Bambusa vulgaris. Pesquisa Florestal Brasileira, Colombo, v. 39, e201801668, 2019. 7 p.| Biblioteca(s): Embrapa Florestas. |
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| 11. | | GUEDES, P. H. E.; PINNA, A. E.; MORAIS, R. de C. L.; SOUZA, G. N. de; JACOB, J. C. F.; CARVALHO, C. F. P. de M.; NOGUEIRA, L. A. G.; OLIVEIRA, C. S. Doppler evaluation of recipient cows treated with progesterone and estradiol. Animal Production Science, v. 62, n. 9, p. 836-843, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 11 | |
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