| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
06/01/2015 |
|
Data da última atualização: |
03/06/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
VINSON, C. C.; KANASHIRO, M.; HARRIS, S. A.; BOSHIER, D. H. |
|
Afiliação: |
C. C. Vinson, University of Oxford; MILTON KANASHIRO, CPATU; S. A. Harris, University of Oxford; D. H. Boshier, University of Oxford. |
|
Título: |
Impacts of selective logging on inbreeding and gene flow in two Amazonian timber species with contrasting ecological and reproductive characteristics. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
Molecular Ecology, v. 24, n. 1, p. 38-53, Jan. 2015. |
|
DOI: |
10.1111/mec.13002 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Selective logging in Brazil allows for the removal of up to 90% of trees above 50 cm diameter of a given timber species, independent of a species? life history characteristics or how quickly it will recover. The genetic and demographic effects of selective logging on two Amazonian timber species (Dipteryx odorata Leguminosae, Jacaranda copaia Bignoniaceae) with contrasting ecological and reproductive characteristics were assessed in the same forest. Genetic diversity and gene flow were characterized by genotyping adults and seed sampled before and after logging, using hypervariable microsatellite markers. Overall, there were no short-term genetic impacts on the J. copaia population, with commercial application of current Brazilian forest management regulations. In contrast, for D. Odorata, selective logging showed a range of genetic impacts, with a 10% loss of alleles, and reductions in siring by pollen from trees within the 546-ha study area (23?11%) and in the number of pollen donors per progeny array (2.8?1.6), illustrating the importance of the surrounding landscape. Asynchrony in flowering between D. odorata trees led to trees with no breeding partners, which could limit the species reproduction and regeneration under current regulations. The results are summarized with other published studies from the same site and the implications for forest management discussed. The different types and levels of impacts associated with each species support the idea that ecological and genetic information by species, ecological guild or reproductive group is essential in helping to derive sustainable logging guidelines for tropical forests. MenosSelective logging in Brazil allows for the removal of up to 90% of trees above 50 cm diameter of a given timber species, independent of a species? life history characteristics or how quickly it will recover. The genetic and demographic effects of selective logging on two Amazonian timber species (Dipteryx odorata Leguminosae, Jacaranda copaia Bignoniaceae) with contrasting ecological and reproductive characteristics were assessed in the same forest. Genetic diversity and gene flow were characterized by genotyping adults and seed sampled before and after logging, using hypervariable microsatellite markers. Overall, there were no short-term genetic impacts on the J. copaia population, with commercial application of current Brazilian forest management regulations. In contrast, for D. Odorata, selective logging showed a range of genetic impacts, with a 10% loss of alleles, and reductions in siring by pollen from trees within the 546-ha study area (23?11%) and in the number of pollen donors per progeny array (2.8?1.6), illustrating the importance of the surrounding landscape. Asynchrony in flowering between D. odorata trees led to trees with no breeding partners, which could limit the species reproduction and regeneration under current regulations. The results are summarized with other published studies from the same site and the implications for forest management discussed. The different types and levels of impacts associated with each species support the idea that ecological an... Mostrar Tudo |
|
Palavras-Chave: |
Amazon forest; Exploração madeireira; Floresta amazônica; Fluxo de pólen. |
|
Thesaurus Nal: |
logging; pollen flow. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02427naa a2200241 a 4500
001 2004458
005 2022-06-03
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1111/mec.13002$2DOI
100 1 $aVINSON, C. C.
245 $aImpacts of selective logging on inbreeding and gene flow in two Amazonian timber species with contrasting ecological and reproductive characteristics.$h[electronic resource]
260 $c2015
520 $aSelective logging in Brazil allows for the removal of up to 90% of trees above 50 cm diameter of a given timber species, independent of a species? life history characteristics or how quickly it will recover. The genetic and demographic effects of selective logging on two Amazonian timber species (Dipteryx odorata Leguminosae, Jacaranda copaia Bignoniaceae) with contrasting ecological and reproductive characteristics were assessed in the same forest. Genetic diversity and gene flow were characterized by genotyping adults and seed sampled before and after logging, using hypervariable microsatellite markers. Overall, there were no short-term genetic impacts on the J. copaia population, with commercial application of current Brazilian forest management regulations. In contrast, for D. Odorata, selective logging showed a range of genetic impacts, with a 10% loss of alleles, and reductions in siring by pollen from trees within the 546-ha study area (23?11%) and in the number of pollen donors per progeny array (2.8?1.6), illustrating the importance of the surrounding landscape. Asynchrony in flowering between D. odorata trees led to trees with no breeding partners, which could limit the species reproduction and regeneration under current regulations. The results are summarized with other published studies from the same site and the implications for forest management discussed. The different types and levels of impacts associated with each species support the idea that ecological and genetic information by species, ecological guild or reproductive group is essential in helping to derive sustainable logging guidelines for tropical forests.
650 $alogging
650 $apollen flow
653 $aAmazon forest
653 $aExploração madeireira
653 $aFloresta amazônica
653 $aFluxo de pólen
700 1 $aKANASHIRO, M.
700 1 $aHARRIS, S. A.
700 1 $aBOSHIER, D. H.
773 $tMolecular Ecology$gv. 24, n. 1, p. 38-53, Jan. 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 97 | |
| 24. |  | GALVÃO, E. U. P.; CESAR, J.; ITALIANO, E. C. Estado atual de conhecimentos sobre sistemas de produção de culturas alimentares para o Estado do Amazonas. In: SIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. Anais. Belém, PA: EMBRAPA-CPATU, 1986. v. 3, p. 57-69. (EMBRAPA-CPATU. Documentos, 36). v.3 Culturas temporarias.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental. |
|    |
| Registros recuperados : 97 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
