Plant Phenology
Mostrando 25-36 de 102 artigos, teses e dissertações.
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25. Estratégias reprodutivas de briófitas em dois habitats distintos da floresta atlântica do Parque Estadual da Serra do Mar / Reproductive strategies of bryophytes in two habitats of the brazilian atlantic Florest ("Serra do Mar" State Park, São Paulo)
O objetivo da tese foi aumentar o conhecimento e o entendimento sobre estratégias reprodutivas de briófitas presentes em floresta tropical úmida, especificamente em dois habitats distintos da Floresta Ombrófila densa (Floresta Montana e de Restinga) do Parque Estadual da Serra do Mar, São Paulo. A seguinte hipótese foi testada: o sistema reprodutivo (e
Publicado em: 2011
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26. Alternative food sources and overwintering feeding behavior of the boll weevil, Anthonomus grandis boheman (coleoptera: curculionidae) underthe tropical conditions of central Brazil
The boll weevil causes serious damage to the cotton crop in South America. Several studies have been published on this pest, but its phenology and behavior under the tropical conditions prevailing in Brazil are not well-known. In this study the feeding behavior and main food sources of adult boll weevils throughout the year in Central Brazil was investigated
Neotropical Entomology. Publicado em: 2010-02
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27. A importância da floração seqüencial de Malpighiaceae para a manutenção da diversidade de tripes (Thysasanoptera) no cerrado / The importance of sequential flowering Malpighiaceae to the maintenance of thrips (Thysanoptera) in Brazilian Savanna
To understand the role of each plant species in the ecology of thrips, two principal criteria need to be quantified: the regularity with which individuals are found on a plant species over time, and their abundance on that particular plant species relative to other ones. The choice of representative plants may supply subsidies to define temporary patterns an
Publicado em: 2010
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28. Interações ecológicas em Malpighiaceae no cerrado: compartilhamento de guildas de herbívoros e variações nos resultados da interação formiga-planta / Ecological interactions in Malpighiaceae in the Cerrado: sharing of guilds from herbivores and variations in the results of ant-plant interaction
Ecological interactions represent essential tools for a better understanding of natural communities, having in animal-plant relationships important models for study. For that, become needful phenological analyses of plants, capable of demonstrating the flowering strategies and with it the ways of temporal organization of resources available for herbivores. T
Publicado em: 2010
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29. The loss of leaf and its relation to genus Ectatomma (Formicidae:Ecatomminae) in a cerrado community / A perda de área foliar e sua relação com o gênero Ectatomma (Formicidae: Ectatomminae) em uma comunidade de cerrado
The loss of leaf area, mostly resulting from the action of herbivores is one of the factors that regulate the reproductive success of a plant and indirectly to all consumers connected to the community. Most studies of herbivory and leaf loss are punctual, i.e., refer to one or a few plant species. In the cerrado, a tropical savanna in Brazil, the largest sav
Publicado em: 2010
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30. Ecological-evolutionary relationships in Passiflora alata from Rio Grande do Sul, Brazil / Relações ecológico-evolutivas em Passiflora alata do Rio Grande do Sul, Brasil
A distribuição geográfica, as características ecológicas, as épocas de florescimento e frutificação, e os agentes polinizadores de Passiflora alata são considerados e relacionados a estudos genético-moleculares desenvolvidos simultaneamente. O primeiro registro da espécie no Rio Grande do Sul foi feito em 1934, apenas em área cultivada. Cerca de
Publicado em: 2010
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31. Ciclo de vida, fenologia e anatomia floral de Pilostyles (Apodanthaceae - Rafflesiaceae s.l.): subsídios para um posicionamento filogenético da família Apodanthaceae / Life cycle, phenology and floral anatomy of Pilostyles (Apodanthaceae - Rafflesiaceae s.l.): phylogenetic position allowances for Apodanthaceae family
As plantas holoparasitas dependem inteiramente de recursos retirados do xilema e floema hospedeiros e são representadas atualmente por pelo menos sete linhagens, cujo posicionamento filogenético continua sendo revisto. A família Apodanthaceae inclui plantas aclorofiladas, holoparasitas de caules, cujo corpo vegetativo apresenta extrema redução. Por sere
Publicado em: 2010
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32. Oferta de frutos e frugivoria por aves, em espécies do gênero Miconia Ruiz &Pav. (Melastomataceae) em duas áreas do Cerrado / Fruit supply and bird frugivory in species of Miconia Ruiz &Pav. (Melastomataceae) in areas of Cerrado, Brazil
The goals of this study were: to determine the seasonality, duration and fruit supply peaks of Miconia albicans, M. ibaguensis, M. affinis, M. theaezans and M. chamissois; to verify the nutritional quality of these fruits (Chapter I); to evaluate which birds feed on these fruits, and to verify which birds are the main dispersers of each Miconia species (Chap
Publicado em: 2010
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33. Beija-flores (Aves: Trochilidae) e seus recursos florais em uma área de caatinga da Chapada Diamantina, Bahia, Brasil
This study investigated the species of hummingbird occurring in an area of caatinga vegetation, examining their seasonal activities, the assemblages of plants that they used, as well as the floral characteristics and flowering phenology of that vegetation. These surveys were performed in an area of arboreal caatinga in Chapada Diamantina, municipality of Muc
Zoologia (Curitiba). Publicado em: 2009-06
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34. Comportamento fenológico e produtivo fora de época das videiras Cabernet Sauvignon e Alicante
This study aimed to characterize the phenology and the production of Cabernet Sauvignon and Alicante (Vitis vinifera L.) grapes produced out of season in the north of Paraná State for red wine elaboration. The experimental area was located in a commercial property belonging to the Intervin® Winery, in Maringá, PR. The vineyards were established in july 20
Publicado em: 2009
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35. Pruning times and numbers of branches of âRoxo de Valinhosâ green fig organic culitve / Ãpoca de poda e nÃmero de ramos na produÃÃo de figos verdes âRoxo de Valinhosâ em cultivo orgÃnico
In the several options of fruits species with good perspectives for the organic production, it can stand out the fig (Ficus carica L.) as one of the most promising, mainly in relation to production of destined green figs the industrialization, front to possibility of aggregation of values in the final product, in the industrialization process. The objective
Publicado em: 2009
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36. Frugivoria por Tapirus terrestris em três regiões do Pantanal, Brasil
Tapirus terrestris (Linnaeus 1758) is the largest terrestrial Neotropical mammal. Its diet consists of leaves, fruits and buds, and it is able to ingest seeds without damaging them; enhancing, in this way, seed dispersion. The aim of this study was to determine the tapirs diet, evaluate its contribution for seed dispersion and the differences in the composit
Publicado em: 2009