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| Registros recuperados: 22 | |
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| Monteiro,Daniela; Ramalho,Mauro. |
| It is controversial the role played by Meliponina bees in the pollination of mass flowering trees with small generalized flowers (FMPG), very common group of trees in the tropical forest canopy. The species richness and relative abundance of flower visiting insects of the mass flowering tree Stryphnodendron pulcherrimum were measured to test the hypothesis of tight ecological association between these generalist bees and FMPG and to evaluate the effect of this relationship upon the reproductive success variation among tree crowns. The flower visiting insects were sampled on 10 flowering tree crowns at the Atlantic Rainforest in southern Bahia. Altogether, 553 visiting insects were collected during the flowering period of S. pulcherrimum: 293 (52%)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stingless bee; Pollination; Geitonogamy; Canopy. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000400009 |
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| Hoogmoed, M.S.; Avila-Pires, T.C.S.. |
| The Mission Radeau des Cimes to Petit Saut, French Guiana, offered the opportunity to study the herpetofauna of the canopy of the tropical rainforest, an area hardly studied sofar. Two localities at heights of 30 and 35 m could be studied, whereas data on a third site were obtained through information from other participants. The herpetological results of the research in the canopy were meagre. Only the frog Hyla leucophyllata (Beireis) and the lizard Mabuya bistriata (Spix) were observed in the canopy. Additionally the terrestrial herpetofauna was studied extensively and turned out to contain some species that had not been reported before from French Guiana. Also, for many species new distribution data within French Guiana were obtained. Le Mission Radeau... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Amphibia; Tropical rainforest; Canopy; Forest floor; Neotropics; French Guiana; 42.82. |
| Ano: 1991 |
URL: http://www.repository.naturalis.nl/record/318446 |
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| Batista,Natália de Almeida; Bianchini,Edmilson; Carvalho,Eloisa de Souza; Pimenta,José Antonio. |
| We aimed to answer the following questions related to the architecture of individuals 0.5-3.0 m in height belonging to understory or canopy/emergent layer tree species: "Is there a difference between individuals belonging to different strata developing in environments with the same light intensity, in terms of their architecture?"; and "Given the same light intensity, do understory species exhibit less crown plasticity than do canopy/emergent layer species?" Thirteen architectural variables were evaluated in 80 individuals per species. We found that understory species showed greater increases in stem thickness and leaf number, as well as wider, deeper crowns, longer branches, greater self-shading and less crown plasticity. Stems and crowns were more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Resource allocation; Canopy; Allometric relationships; Understory. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000100004 |
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| RONCATTO, G.; ROMANO, M. R.; CARAVINA, S. M.; OLIBONE, D.; GIRARDI, E. A.; SOARES FILHO, W. dos S.; BOTELHO, S. de C. C.; WRUCK, D. S. M.. |
| Resumo: O objetivo do trabalho foi avaliar variáveis de crescimento vegetativo de limeira ácida ?Tahiti CNPMF 02? enxertada em porta-enxertos em Sorriso, MT e Guarantã do Norte, MT. Os porta-enxertos foram: citrandarin ?Indio? [C. sunki (Hayata) hort ex Tanaka x Poncirus trifoliata (L.) Raf. ?English?] (CTRI) e ?San Diego? (C. sunki x P. trifoliata ?Swingle?) (CTRSD), citrumelo ?Swingle? (C. paradisi Macfad. x P. trifoliata) (CTSW), limoeiro ?Cravo?, clones ?Santa Cruz? e ?CNPMF-003?, tangerineira ?Sunki Tropical? (C. sunki) e os híbridos HTR - 069, TSKC x (LCR x TR) - 059, LVK x LCR - 038, TSKC x CTSW ? 028, LRF x (LCR x TR) - 005, TSKC x TRFD 003 e 006. Aos 3,5 anos até os 4,5 anos de idade foram avaliadas as seguintes características: altura de planta,... |
| Tipo: Folhetos |
Palavras-chave: Limeira ácida; Volume da copa; Diâmetro do caule; Selo ODS 2; Selo ODS 12; Gomose; Porta Enxerto; Planta Porta-Enxerto; Doença de Planta; Fruta Cítrica; Volume; Estrutura Vegetal; Caule; Estatura de Planta; Tahiti; Citrus; Gummosis; Canopy. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1149393 |
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| Chen, W.-M.; Lee , Y.-F.; Tsai, C.-F.; Yao, C.-T.; Chen, Y.-H.; Li, S.-H.; Kuo, Y.-M.. |
| Many birds in breeding seasons engage in vigorous dawn singing that often turns to a prominent chorus. We examined dawn chorus variation of avian assemblages in a tropical montane forest in Taiwan and tested the hypothesis that onset sequence is affected by eye sizes, foraging heights, and diet of birds. Chorus onset and duration varied between sampling months, but generally peaked in the prime breeding season. Overall dawn chorus length increased with, but mean duration per species was negatively correlated with, species richness. The inter-correlation among trait variables in phylogenetic independent contrasts was calculated and examined. Both foraging height and relative eye size were selected as positively explanatory factors, but no dietary effects... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Breeding; Canopy; Diets; Eye size; Foraging; Perch; Taiwan; Tropical forests; Birds; 42.83; 42.62. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/578950 |
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| Ferlito,Filippo; Allegra,Maria; Torrisi,Biagio; Pappalardo,Helena; Gentile,Alessandra; Malfa,Stefano La; Continella,Alberto; Stagno,Fiorella; Nicolosi,Elisabetta. |
| ABSTRACT: The effect of basal zone defoliation on vines influences yield and ripening depending on the phenological stage and its intensity. Early basal defoliation (EBD) was carried out at flowering on the autochthonous Vitis vinifera (L.) cultivar ‘Nerello mascalese’ grown on the eastern slopes of Mount Etna, Sicily. The effects were evaluated over a two-year period. In the first year, the canopy retained 67 % of its original leaf area after EBD and in the second year, 58 %. Compared with control vines, mid-day leaf water potentials in the EBD vines enjoyed higher water status throughout the growing seasons in both years. EBD had no significant negative effects on yield but did have significant positive effects on the levels of total polyphenols, total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis vinifera (L.); Photosynthesis; Canopy; Sustainability; Berry quality. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000600602 |
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| Tovar-Sánchez,Efraín; Valencia-Cuevas,Leticia; Mussali-Galante,Patricia; Ramírez-Rodríguez,Rolando; Castillo-Mendoza,Elgar. |
| BACKGROUND: Recently it has been proposed that the genetic diversity of foundation species influences the structure and function of the community by creating locally stable conditions for other species and modulating ecosystem dynamics. Oak species are an ideal system to test this hypothesis because many of them have a wide geographical distribution, and they are dominant elements of the forest canopy. In this study we explored the response of canopy arthropod community structure (diversity and biomass) to the level of genetic diversity of Quercus crassipes and Q. rugosa, two important canopy species. Also, we examined the effect of oak species and locality on some community structure parameters (diversity, biomass, rare species, and richness of arthropod... |
| Tipo: Journal article |
Palavras-chave: Arthropods community; Canopy; Foundation species; Genetic diversity; Quercus. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100012 |
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| Fontoura,Talita; Reinert,Fernanda. |
| We studied the community and habitat occupation of epiphytes to understand how these plants cope with a supposedly stressful habitat: i) how general epiphytes occupy tree trunks, ii) how epiphytic bromeliads, occupy their supportive trees, iii) how CAM bromeliads are spatially distributed. The study was done in the dry forest of Jacarepiá, State of Rio de Janeiro. Data collection on epiphytes, phorophytes, and trees was based on the point-center quarter method. The photosynthetic pathway of the bromeliad species was determined using isotope ratio mass spectrometry. The presence of Gesneriaceae, Araceae, and Cactaceae indicates that some humidity is present in the area allowing the presence of supposedly less-specialized epiphytes. There was no correlation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic rainforest; Bromeliaceae; Canopy; Restinga vegetation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000300011 |
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| FIGUEIREDO, E. O.; MOURA, D. C. de S.; FIGUEIREDO, S. M. de M.; PAPA, D. de A.. |
| Novas tecnologias, sendo advindas do geoprocessamento e do sensoriamento remoto, vêm sendo desenvolvidas a fim de auxiliar no processo de delimitação das APPs e demarcação das árvores. No entanto, faltam estudos para investigar e comprovar sua eficácia. Não há registro de trabalhos, publicados no Brasil, que utilizem diferentes metodologias na definição de APPs para avaliá-las. O presente trabalho teve como objetivo propor uma metodologia precisa para o mapeamento de áreas de preservação permanente e definição de árvores protegidas e exploráveis na região de influência das APPs, comprovando a sua aplicabilidade nos PMFS. |
| Tipo: Folhetos |
Palavras-chave: Código Florestal; Área de proteção ambiental; Área de Preservação Permanete (APP); Geotécnica; Manejo florestal; Embrapa Acre; Forest biometry; Sistema de posicionamento global; Modeflora; Modelagem 3D; Manejo de precisão; Biometria florestal; Western Amazon; Amazônia Ocidental; Acre; Rio Branco (AC); Biometría forestal; Sistemas de posicionamiento global; Mapeamento; Agricultura de precisión; Cubierta (plantas); Inventario forestal; Ley ambiental; Manejo forestal; Sistemas de información geográfica; Teledetección; Agricultura de precisão; Inventário florestal; Administração florestal; Sensoriamento remoto; Sistema de informação geográfica; Hidrografia; Vegetação; Cartografia; Hidrologia; Precision agriculture; Forest management; Canopy; Environmental law; Cartography; Remote sensing; Global positioning systems; Geographic information systems; Forest inventory; Hydrology. |
| Ano: 2009 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/852921 |
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| Registros recuperados: 22 | |
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