Ecophysiology
Mostrando 1-12 de 72 artigos, teses e dissertações.
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1. Advances in the knowledge of the natural history of aquatic plants in the Neotropics
ABSTRACT Until the mid-XX century, little awareness on the ecological services or socio-environmental problems and benefits related to aquatic plants culminated in bottlenecks on their natural history, especially for the Neotropics. In this context, Acta Botanica Brasilica (ABB) organized this special issue to promote the advancement of knowledge on this eco
Acta Bot. Bras.. Publicado em: 2021-03
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2. Adaptive morphoanatomy and ecophysiology of Billbergia euphemiae, a hemiepiphyte Bromeliaceae
Resumo Habitats com pressões seletivas diferentes exercem pressões adaptativas que podem levar indivíduos de uma mesma espécie a apresentar diferentes estratégias de vida para sua sobrevivência. O objetivo desse estudo foi analisar características funcionais para identificação de estratégias ecológicas adaptativas relacionadas às fases de vida te
Rodriguésia. Publicado em: 20/12/2019
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3. Obtaining monokaryotic and dikaryotic mycelial cultures of two Amazonian strains of Geastrum (Geastraceae, Basidiomycota)
RESUMO A alta diversidade do gênero Geastrum e a dificuldade de obtenção de culturas miceliais prejudicam o estudo ecofisiológico e a exploração do potencial biotecnológico do táxon. Nesse estudo, foram testados diferentes meios de cultivo, visando a obtenção de culturas miceliais para G. lloydianum e G. subiculosum coletadas na Amazônia brasileir
Acta Amaz.. Publicado em: 25/11/2019
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4. Ecophysiology, genotoxicity, histopathology, and gene responses of naphthalene injected Colossoma macropomum (Cuvier, 1818) exposed to hypoxia
Abstract The present study aimed to evaluate the biological responses of Colossoma macropomum to naphthalene injection and subsequent hypoxia exposure, emphasizing the expression of the tumor suppressor gene tp53. Tambaquis were intraperitoneally injected with naphthalene (50 mg/kg) and, after 96 hours, the fish were transferred to respirometry chambers and,
Genet. Mol. Biol.. Publicado em: 13/06/2019
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5. Ecophysiology of Germination of Parkia platycephala Benth. Seeds
ABSTRACT Water is considered the most important environmental resource for the germination process. This study aimed to evaluate the germination performance of Parkia platycephala seeds under different conditions of water and saline stress. Seed germination was tested with solutions of poly (ethylene glycol) 6000 and sodium chloride (NaCl) at seven osmotic
Floresta Ambient.. Publicado em: 14/03/2019
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6. Leaf phenology, growth and photosynthesis in Pseudobombax munguba (Malvaceae)
RESUMO A munguba (Pseudobombax munguba) é uma árvore encontrada com frequência em florestas de baixios da Amazônia e há escassez de informação sobre a sua ecofisiologia. O objetivo deste trabalho foi determinar as taxas fotossintéticas e o crescimento de arvoretas de munguba e descrever a fenologia foliar de uma árvore adulta. Em arvoretas em casa d
Rev. Ceres. Publicado em: 2019-02
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7. Nectar ecology of the endemic epiphytic hummingbird-pollinated bromeliad Vriesea altodaserrae: secretion dynamics and pollinator visitation pattern
ABSTRACT Hummingbirds are the main pollinators of most bromeliad species, whose nectar traits usually respond to the selective pressures imposed by pollinators. Considering the specialization of hummingbird-pollinated bromeliads, we expect a close relationship between nectar ecophysiology and the needs of the main pollinators. In this sense, we studied the n
Acta Bot. Bras.. Publicado em: 15/09/2018
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8. Seasonal variation in gas exchange by plants of Erythroxylum simonis Plowman
ABSTRACT Erythroxylum simonisis an understory species found in Northeast Brazil. Due to its shaded habitat,E. simonisis subjected to seasonal oscillations of the environment, to which it must respond ecophysiologically. The objective of this study was to evaluate the effects of seasonality on the ecophysiology ofE. simonis in a fragment of Seasonal Semidecid
Acta Bot. Bras.. Publicado em: 15/02/2018
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9. Ecophysiology of deciduous plants grown at different densities in the semiarid region of Brazil
Physiological differences in the Cordia oncocalyx tree growing at different densities in two distinct areas were investigated. An agrosilvopastoral system (AGP) and a secondary forest (SF) were studied. Under both types of land-use, C. oncocalyx presented a relative frequency of approximately 50%, and absolute densities of 670 and 80 individuals per hectare,
Theor. Exp. Plant Physiol.. Publicado em: 2013
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10. Circadian pattern of Bothrops moojeni in captivity (Serpentes: Viperidae)
Members of the subfamily Crotalinae are considered to be essentially nocturnal and most of the data about these snakes have been collected from the field. Information on how nutritional status affects the movement rate and activity patterns is a key point to elucidating the ecophysiology of snakes. In this study, we distributed 28 lancehead Bothrops moojeni
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2012
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11. CALIBRATION THE MODEL 3-PG FOR Eucalyptus saligna IN THE REGION OF GUAÍBA, RS / CALIBRAÇÃO DO MODELO 3-PG PARA Eucalyptus saligna Smith NA REGIÃO DE GUAÍBA, RS
O trabalho teve como objetivo principal calibrar o modelo 3-PG para Eucalyptus saligna na região de Guaíba, RS para as varáveis diâmetro à altura do peito (DAP), altura total, volume de madeira e biomassa de stem (galho, casca e lenho). O estudo ocorreu na região de Guaíba, RS, sendo utilizados plantios clonais de Eucalyptus saligna, em diversos espa�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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12. Acharadria crocea (Cnidaria: Hydrozoa): estudo integrado da ecofisiologia do assentamento larval e modelagem de nicho ecológico / Acharadria crocea (Cnidaria: Hydrozoa): integrative study of larval settlement ecophysiology and ecological niche modeling
Acharadria crocea é um hidrozoário comum do Atlântico Sul-Ocidental. Na costa brasileira, a espécie possui um padrão de sazonalidade bem definido, sendo abundante nos meses frios do ano e ausente ou rara no verão e outono. Durante o inverno, a espécie apresenta intenso crescimento assexuado por brotamento, permitindo o rápido desenvolvimento da colô
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/07/2011