Allometric Relationships
Mostrando 13-24 de 38 artigos, teses e dissertações.
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13. Regeneração de espécies arbóreas em floresta impactada
This study aimed to investigate aspects of population ecology of six tree species in two areas with different historical preservation: Mata São Francisco State Park (MSFSP), Santa Mariana-Cornelio Procópio, PR, Brazil (23º 15 S and 50º 45 W, central point of fragment), who suffered exploration anthropogenic, and Mata dos Godoy State Park (MGSP) (23º 27
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2011
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14. CRESCIMENTO, DESENVOLVIMENTO E PRODUTIVIDADE DE CANA-DEAÇÚCAR EM CULTIVO DE CANA-PLANTA E CANA-SOCA DE UM ANO SANTA MARIA, RS / SUGARCANE GROWTH, DEVELOPMENT AND YIELD IN CROPS PLANT AND RATOONING OF ONE YEAR IN SANTA MARIA, RS
The objectives of this Dissertation were to estimate the base temperature of leaf appearance, determine the phyllochron, leaf area, tillering, leaves number on stem elongation and determine the crop yield of three clones of sugarcane in crops plant and ratooning of one year. A field experiment was conducted during the years 2008 at 2010 at the experimental a
Publicado em: 2011
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15. Ecologia populacional de Euterpe edulis e os efeitos da introdução de Euterpe oleracea na floresta atlântica no Estado de São Paulo
The main objectives of this dissertation were to evaluate the risks of introduction of Euterpe oleracea in the Atlantic Rainforest and its influence over a native population of Euterpe edulis. We investigated the ecological and morphological features of these species also including pre-existing data about hybrids experimentally produced between them (Chapter
Publicado em: 2011
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16. Size-mass relationships of Melanoides tuberculatus (Thiaridae: Gastropoda) in a eutrophic reservoir
This study evaluated the relationships of certain allometric measurements in Melanoides tuberculatus Muller, 1774, in order to develop a statistical model to estimate the biomass of this mollusc species. We measured the total length and aperture of 70 shells. These measurements were correlated with the biomass values to construct exponential and power-functi
Zoologia (Curitiba). Publicado em: 2010-10
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17. Population biology and secondary production of the stout razor clam Tagelus plebeius (Bivalvia, Solecurtidae) on a sandflat in southeastern Brazil
The population biology and production of the stout razor clam Tagelus plebeius Lightfoot, 1786 were investigated on an intertidal sandflat on the southeast coast of Brazil (Enseada Beach, São Sebastião, state of São Paulo) between April 1997 and April 1998. Two rectangular sites of 50 X 10 m parallel to the waterline were established, site A (upper intert
Zoologia (Curitiba). Publicado em: 2010-02
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18. Estrutura populacional e alometria reprodutiva de Podocnemis expansa (Testudines, Podocnemididae) no entorno do Parque Nacional do Araguaia, Tocantins / Population structure and reproductive allometry of Podocnemis expansa (Testudines, Podocnemididae) around the Parque Nacional do Araguaia, Tocantins
Among the reptiles found in the Amazon, the turtles stand out because of its diversity and economic importance. Podocnemis expansa, popularly known as Amazon river turtle, is considered the largest freshwater turtle in South America and has been heavily exploited for centuries by many indigenous and riverine communities. This study aimed to expand the knowle
Publicado em: 2010
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19. Características vegetativas e reprodutivas das plantas e fatores abióticos do meio e suas relações com a alocação de biomassa floral e a seleção sexual em angiospermas / Vegetative and reproductive characteristics of plants and abiotic factors of the environment and their relations with floral biomass allocation and sexual selection in angiosperms
Plants are sessile organisms exposed to the effects of environmental stress. The flowers are fundamental structures in the evolution of angiosperms, because through them is sexual reproduction. For this, the flowers exhibit strategies that help the plant to achieve better reproductive success. Animals visit flowers in search of resources, however, to carry p
Publicado em: 2010
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20. EMISSÃO E CRESCIMENTO DE FOLHAS E SEUS EFEITOS NA PRODUÇÃO DE FRUTAS DE DUAS CULTIVARES DE MORANGUEIRO / APPEARANCE AND GROWTH OF LEAVES AND THEIR EFFECTS ON THE FRUIT PRODUCTION OF TWO STRAWBERRY CULTIVARS
Os objetivos nesta dissertação foram estimar a temperatura base de aparecimento de folhas, determinar o filocrono e caracterizar o crescimento da área foliar e os componentes da produção em duas cultivares de morango. Um experimento de campo foi conduzido durante os anos de 2008 e 2009 em três datas de plantio em cada ano, na área experimental do Depa
Publicado em: 2010
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21. Ontogenia craniana comparada de Arctocephalus australis, Callorhinus ursinus e Otaria byronia (Otariidae: Pinnipedia)
The search for mechanisms that can generate major morphological changes has led to the study of ontogeny, in part because some kinds of modifications of ontogenies seem an excelent way to generate major phenotypic change. We focus here on Arctocephlaus australis, Callorhinus ursinus and Otaria byronia with the aim of contributing to the understanding of the
Publicado em: 2009
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22. A test of Allen's rule in ectotherms: the case of two south American Melanopline Grasshoppers (Orthoptera: Acrididae) with partially overlapping geographic ranges
We studied the geographic variation of three morphometric characters in relation to body size in two South American grasshoppers (Acrididae), Dichroplus vittatus Bruner and D. pratensis Bruner to test Allen's rule in these ectotherms. Since both species follow the converse to Bergmann's rule owing to latitudinal and/or altitudinal variation in time available
Neotropical Entomology. Publicado em: 2008-08
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23. RelaÃÃes alomÃtricas em Leucaena leucocephala (Lam.) De Wit / Allometric relations for Leucaena leucocephala (Lam.) de Wit
Concern with increase carbon dioxide emissions has fostered several studies throughout scientific knowledge. The greenhouse effect is recognized as necessary for Earth surface colonization. However, modern day carbon dioxide and other greenhouse effect gases are blamed for atmosphere warming and its catastrophic effects. Both the Kyoto treat and the policy o
Publicado em: 2006
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24. Populational and taxonomical studies of fire ants, Solenopsis invicta (Hymenoptera: Formicidae), and of the phenology of their parasitoids of the genus Psedacteon (Diptera: Phoridae) / Estudos populacionais e taxonomicos de formigas lava-pes, Solenopsis invicta (Hymenoptera: Formicidae) e da fenologia de seus parasitoides do genero Pseudacteon (Diptera: Phoridae)
This work discusses some aspects of the ecology of the fire ant species Solenopsis invicta and its phorid parasitoid flies ofthe genus Pseudacteon, and ofthe taxonomy of S. invicta and S. saevissima, both of which are native to South America. The allometry of S. invicta colonies in southeast Brazil was studied by measurement of mound (aboveground) dimensions
Publicado em: 2006