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Registro Completo |
Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
20/02/2018 |
Data da última atualização: |
20/02/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
KLIMAS, C. M.; CROPPER JUNIOR, W. P.; KAINER, K. A.; WADT, L. H. de O. |
Afiliação: |
Christie M. Klimas, DePaul University; Wendell P. Cropper Junior, University of Florida; Karen A. Kainer, University of Florida; Center for Latin American Studies; LUCIA HELENA DE OLIVEIRA WADT, CPAF-Rondonia. |
Título: |
Multimodel projections for evaluating sustainable timber and seed harvest of carapa guianensis. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Forest Science, v. 64, n. 1, p.15-27, 2017. |
DOI: |
https://doi.org/10.5849/FS-2017-001 |
Idioma: |
Inglês |
Conteúdo: |
Ecological models are increasingly used to forecast the long-term fate of populations after management interventions. The uncertainty associated with forecasts is important to investigate. Because model choice is one component of uncertainty, we compared projections of Carapa guianensis population growth rate () from matrix population models (MPMs) and integral projection models (IPMs). We also compared projections for C. guianensis seed and timber harvest scenarios to those from previous MPMs for this economically valuable multiple-use tree species. Changes in the time interval of the MPM resulted in larger changes in than changes in environmental conditions between years. The only exception to this trend was when representing impacts of a 2005 fire. Fire had a more severe impact on when modeled with IPMs. The IPM estimated in 2005?9 was 0.8122, almost 0.1 lower than the MPM of 0.9115. The management implications of this research were mixed. Both MPM and IPM results indicated declining populations of C. guianensis even before simulated harvests. However, the annualized income from seed oil and timber harvests, although not ecologically sustainable, was comparable or higher than per-hectare earnings from rubber and other nontimber forest products in the Amazon. |
Palavras-Chave: |
Integral projection models; Matrix population models; Net present value. |
Thesaurus Nal: |
nontimber forest products. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01985naa a2200217 a 4500 001 2087909 005 2018-02-20 008 2017 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.5849/FS-2017-001$2DOI 100 1 $aKLIMAS, C. M. 245 $aMultimodel projections for evaluating sustainable timber and seed harvest of carapa guianensis.$h[electronic resource] 260 $c2017 520 $aEcological models are increasingly used to forecast the long-term fate of populations after management interventions. The uncertainty associated with forecasts is important to investigate. Because model choice is one component of uncertainty, we compared projections of Carapa guianensis population growth rate () from matrix population models (MPMs) and integral projection models (IPMs). We also compared projections for C. guianensis seed and timber harvest scenarios to those from previous MPMs for this economically valuable multiple-use tree species. Changes in the time interval of the MPM resulted in larger changes in than changes in environmental conditions between years. The only exception to this trend was when representing impacts of a 2005 fire. Fire had a more severe impact on when modeled with IPMs. The IPM estimated in 2005?9 was 0.8122, almost 0.1 lower than the MPM of 0.9115. The management implications of this research were mixed. Both MPM and IPM results indicated declining populations of C. guianensis even before simulated harvests. However, the annualized income from seed oil and timber harvests, although not ecologically sustainable, was comparable or higher than per-hectare earnings from rubber and other nontimber forest products in the Amazon. 650 $anontimber forest products 653 $aIntegral projection models 653 $aMatrix population models 653 $aNet present value 700 1 $aCROPPER JUNIOR, W. P. 700 1 $aKAINER, K. A. 700 1 $aWADT, L. H. de O. 773 $tForest Science$gv. 64, n. 1, p.15-27, 2017.
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
23/03/2011 |
Data da última atualização: |
23/03/2011 |
Autoria: |
TELLES, M. P. C.; PEIXOTO, F. P.; LIMA, J. S.; RESENDE, L. V.; VIANELLO, R. P.; WALTER, M. E. M. T.; COLLEVATTI, R. G. |
Afiliação: |
M. P. C. TELLES, UFG; F. P. PEIXOTO, UFG; J. S. LIMA, UFG; L. V. RESENDE, UFG; ROSANA PEREIRA VIANELLO BRONDANI, CNPAF; M. E. M. T. WALTER, UNB; R. G. COLLEVATTI, UFG. |
Título: |
Development of microsatellite markers for the endangered neotropical tree species Tibouchina papyrus (Melastomataceae). |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 10, n. 1, p. 321-325, 2011. |
Idioma: |
Inglês |
Conteúdo: |
We isolated and characterized 12 microsatellite loci for Tibouchina papyrus (Melastomataceae), an endangered species with narrow and disjunct range, endemics to a few localities in ?cerrado rupestre? from Central Brazil. These microsatellites were obtained by sequencing of a genomic shotgun library for primer design. Leaves from 96 individuals collected in the three known local populations were genotyped using the 12 primers designed to analyze the polymorphisms at each locus. The number of alleles per locus ranged from one to six; two loci were monomorphic. Among the polymorphic loci, expected heterozygosities ranged from 0.161 to 0.714. Combined paternity exclusion probability was 0.957 and combined genetic identity (0.051) was high for studies on parentage. Tibouchina papyrus is a rare and endemic tree species of outcrop quartzite and sandstone soils, with highly isolated populations, which may have lead to the low degree of polymorphism that we detected. Also, motifs of most loci are larger than dinucleotide, which typically display lower levels of polymorphism. |
Palavras-Chave: |
Pau-papel; Tibouchina papyrus. |
Thesagro: |
Árvore; Cerrado. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/30810/1/gmr.pdf
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Marc: |
LEADER 01815naa a2200241 a 4500 001 1882313 005 2011-03-23 008 2011 bl uuuu u00u1 u #d 100 1 $aTELLES, M. P. C. 245 $aDevelopment of microsatellite markers for the endangered neotropical tree species Tibouchina papyrus (Melastomataceae).$h[electronic resource] 260 $c2011 520 $aWe isolated and characterized 12 microsatellite loci for Tibouchina papyrus (Melastomataceae), an endangered species with narrow and disjunct range, endemics to a few localities in ?cerrado rupestre? from Central Brazil. These microsatellites were obtained by sequencing of a genomic shotgun library for primer design. Leaves from 96 individuals collected in the three known local populations were genotyped using the 12 primers designed to analyze the polymorphisms at each locus. The number of alleles per locus ranged from one to six; two loci were monomorphic. Among the polymorphic loci, expected heterozygosities ranged from 0.161 to 0.714. Combined paternity exclusion probability was 0.957 and combined genetic identity (0.051) was high for studies on parentage. Tibouchina papyrus is a rare and endemic tree species of outcrop quartzite and sandstone soils, with highly isolated populations, which may have lead to the low degree of polymorphism that we detected. Also, motifs of most loci are larger than dinucleotide, which typically display lower levels of polymorphism. 650 $aÁrvore 650 $aCerrado 653 $aPau-papel 653 $aTibouchina papyrus 700 1 $aPEIXOTO, F. P. 700 1 $aLIMA, J. S. 700 1 $aRESENDE, L. V. 700 1 $aVIANELLO, R. P. 700 1 $aWALTER, M. E. M. T. 700 1 $aCOLLEVATTI, R. G. 773 $tGenetics and Molecular Research$gv. 10, n. 1, p. 321-325, 2011.
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