SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2020 |
| Outros Autores: | , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Revista Caatinga |
| Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/9310 |
Resumo: | Myracrodruon urundeuva, Handroanthus impetiginosus and Amburana cearensis are Caatinga tree species that produce valuable timber, but little is known about their ecology. The objective of this study was to evaluate the seed distribution of these species on the forest floor before and after seed dispersal; and seedling emergence, survival, and growth during the rainy season after dispersal of seeds. There were no remaining viable seeds of these species in the seedbank before seed dispersal. The average numbers of seeds after seed dispersal were 188 seed m-2 in a 30 m radius around M. urundeuva, 9 seed m-2 in a 10 m radius around H. impetiginosus, and 5 seed m-2 in a 20 m radius around A. cearensis. The distance of seed dispersal reached 30, 20, and 10 m for M. urundeuva, H. impetiginosus, and A. cearensis trees, respectively, due to differences in tree height, seed weight, forest density, and wind intensity. Seedling emergence was observed during 4 (M. urundeuva) and 9 (H. impetiginosus and A. cearensis) weeks. High mortality predominated at the beginning and end of the rainy season for M. urundeuva and A. cearensis, respectively, while practically all H. impetiginosus seedlings survived. M. urundeuva showed the highest mortality but had higher number of established seedlings than the other species. Seedling survival peaked around 5 m from the tree base. Seedling recruitment and natural regeneration of these trees are assured in the Caatinga site evaluated. |
| id |
UFERSA-1_9017652fd074f5e1e58f60c034ae7229 |
|---|---|
| oai_identifier_str |
oai:ojs.periodicos.ufersa.edu.br:article/9310 |
| network_acronym_str |
UFERSA-1 |
| network_name_str |
Revista Caatinga |
| repository_id_str |
|
| spelling |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREESDISPERSÃO, BANCO DE SEMENTES, SOBREVIVÊNCIA E CRESCIMENTO INICIAL DE TRÊS ÁRVORES DA CAATINGARegeneração natural. Aroeira. Ipê roxo. Cumarú. Emergência de mudas.Natural regeneration. Aroeira. Ipê roxo. Cumarú. Seedling emergence.Myracrodruon urundeuva, Handroanthus impetiginosus and Amburana cearensis are Caatinga tree species that produce valuable timber, but little is known about their ecology. The objective of this study was to evaluate the seed distribution of these species on the forest floor before and after seed dispersal; and seedling emergence, survival, and growth during the rainy season after dispersal of seeds. There were no remaining viable seeds of these species in the seedbank before seed dispersal. The average numbers of seeds after seed dispersal were 188 seed m-2 in a 30 m radius around M. urundeuva, 9 seed m-2 in a 10 m radius around H. impetiginosus, and 5 seed m-2 in a 20 m radius around A. cearensis. The distance of seed dispersal reached 30, 20, and 10 m for M. urundeuva, H. impetiginosus, and A. cearensis trees, respectively, due to differences in tree height, seed weight, forest density, and wind intensity. Seedling emergence was observed during 4 (M. urundeuva) and 9 (H. impetiginosus and A. cearensis) weeks. High mortality predominated at the beginning and end of the rainy season for M. urundeuva and A. cearensis, respectively, while practically all H. impetiginosus seedlings survived. M. urundeuva showed the highest mortality but had higher number of established seedlings than the other species. Seedling survival peaked around 5 m from the tree base. Seedling recruitment and natural regeneration of these trees are assured in the Caatinga site evaluated.Myracrodruon urundeuva, Handroanthus impetiginosus e Amburana cearensis são árvores da caatinga que produzem madeira valiosa, mas pouco se conhece sobre sua ecologia. Avaliou-se a distribuição de suas sementes no solo antes e após a dispersão, a emergência, a sobrevivência e o crescimento das mudas na estação chuvosa após a dispersão. Não havia sementes viáveis remanescentes dessas espécies no banco de sementes antes da dispersão. Após a dispersão, foram observadas, em média, 188 sementes m2 em um raio de 30 m em torno das M. urundeuva, 9 sementes m-2 em um raio de 10 m das H. impetiginosus e 5 sementes m-2 em um raio de 20 m ao redor das A. cearensis. A distância de dispersão atingiu 30, 20 e 10 m para M. urundeuva, H. impetiginosus e A. cearensis, respectivamente, certamente devido a diferenças na altura das árvores, no peso das sementes, na densidade da floresta e intensidade do vento. A emergência das plântulas foi observada durante 4 (M. urundeuva) e 9 (H. impetiginosus e A. cearensis) semanas. A mortalidade predominou no início e no final da estação chuvosa para M. urundeuva e A. cearensis, respectivamente, enquanto praticamente todas as mudas de H. impetiginosus sobreviveram. Myracrodruon urundeuva apresentou a maior taxa de mortalidade, mas estabeleceu mais mudas do que as outras espécies. A sobrevivência das mudas mostrou-se máxima a aproximadamente 5 metros das árvores. O recrutamento de mudas e a regeneração natural dessas árvores estão assegurados nesta área de Caatinga. Universidade Federal Rural do Semi-Árido2020-10-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/931010.1590/1983-21252020v33n416rcREVISTA CAATINGA; Vol. 33 No. 4 (2020); 1007-1016Revista Caatinga; v. 33 n. 4 (2020); 1007-10161983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/9310/10368Copyright (c) 2020 Revista Caatingainfo:eu-repo/semantics/openAccessBakke, Ivonete AlvesSilva, José Evanaldo Rangel daBakke, Olaf AndreasFreire, Antonio Lucineudo de Oliveira2023-07-21T16:44:17Zoai:ojs.periodicos.ufersa.edu.br:article/9310Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:47.774002Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
| dc.title.none.fl_str_mv |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES DISPERSÃO, BANCO DE SEMENTES, SOBREVIVÊNCIA E CRESCIMENTO INICIAL DE TRÊS ÁRVORES DA CAATINGA |
| title |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES |
| spellingShingle |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES Bakke, Ivonete Alves Regeneração natural. Aroeira. Ipê roxo. Cumarú. Emergência de mudas. Natural regeneration. Aroeira. Ipê roxo. Cumarú. Seedling emergence. |
| title_short |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES |
| title_full |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES |
| title_fullStr |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES |
| title_full_unstemmed |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES |
| title_sort |
SEED DISPERSAL, SEEDBANK, SEEDLING SURVIVAL, AND INITIAL GROWTH OF THREE CAATINGA TREES |
| author |
Bakke, Ivonete Alves |
| author_facet |
Bakke, Ivonete Alves Silva, José Evanaldo Rangel da Bakke, Olaf Andreas Freire, Antonio Lucineudo de Oliveira |
| author_role |
author |
| author2 |
Silva, José Evanaldo Rangel da Bakke, Olaf Andreas Freire, Antonio Lucineudo de Oliveira |
| author2_role |
author author author |
| dc.contributor.author.fl_str_mv |
Bakke, Ivonete Alves Silva, José Evanaldo Rangel da Bakke, Olaf Andreas Freire, Antonio Lucineudo de Oliveira |
| dc.subject.por.fl_str_mv |
Regeneração natural. Aroeira. Ipê roxo. Cumarú. Emergência de mudas. Natural regeneration. Aroeira. Ipê roxo. Cumarú. Seedling emergence. |
| topic |
Regeneração natural. Aroeira. Ipê roxo. Cumarú. Emergência de mudas. Natural regeneration. Aroeira. Ipê roxo. Cumarú. Seedling emergence. |
| description |
Myracrodruon urundeuva, Handroanthus impetiginosus and Amburana cearensis are Caatinga tree species that produce valuable timber, but little is known about their ecology. The objective of this study was to evaluate the seed distribution of these species on the forest floor before and after seed dispersal; and seedling emergence, survival, and growth during the rainy season after dispersal of seeds. There were no remaining viable seeds of these species in the seedbank before seed dispersal. The average numbers of seeds after seed dispersal were 188 seed m-2 in a 30 m radius around M. urundeuva, 9 seed m-2 in a 10 m radius around H. impetiginosus, and 5 seed m-2 in a 20 m radius around A. cearensis. The distance of seed dispersal reached 30, 20, and 10 m for M. urundeuva, H. impetiginosus, and A. cearensis trees, respectively, due to differences in tree height, seed weight, forest density, and wind intensity. Seedling emergence was observed during 4 (M. urundeuva) and 9 (H. impetiginosus and A. cearensis) weeks. High mortality predominated at the beginning and end of the rainy season for M. urundeuva and A. cearensis, respectively, while practically all H. impetiginosus seedlings survived. M. urundeuva showed the highest mortality but had higher number of established seedlings than the other species. Seedling survival peaked around 5 m from the tree base. Seedling recruitment and natural regeneration of these trees are assured in the Caatinga site evaluated. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020-10-21 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/9310 10.1590/1983-21252020v33n416rc |
| url |
https://periodicos.ufersa.edu.br/caatinga/article/view/9310 |
| identifier_str_mv |
10.1590/1983-21252020v33n416rc |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/9310/10368 |
| dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Revista Caatinga info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Copyright (c) 2020 Revista Caatinga |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
| publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
| dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 33 No. 4 (2020); 1007-1016 Revista Caatinga; v. 33 n. 4 (2020); 1007-1016 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
| instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
| instacron_str |
UFERSA |
| institution |
UFERSA |
| reponame_str |
Revista Caatinga |
| collection |
Revista Caatinga |
| repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
| repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
| _version_ |
1797674028465389568 |