Thermal Ecology
Mostrando 13-22 de 22 artigos, teses e dissertações.
-
13. Pesca, distribuiÃÃo, migraÃÃo e biologia reprodutiva da albacora-branca (Thunnus alalunga) em relaÃÃo à estrutura termal de massas dâÃgua e correntes oceÃnicas na costa do Brasil / Fishery, distribution, migration and reproductive biology of the albacore (Thunnus alalunga) and relationships with thermal water masses structure and oceanic currents along the brazilian coast
O arrendamento de embarcaÃÃes estrangeiras para pesca de atuns dentro da ZEE brasileira e Ãguas oceÃnicas adjacentes à importante para o desenvolvimento do setor pesqueiro nacional, na medida em que permite a transferÃncia de novas tecnologias, geraÃÃo de renda, conhecimentos sobre os recursos explorados e inÃmeros outros benefÃcios. Um exemplo rec
Publicado em: 2005
-
14. Ecologia geografica de Tropidurus torquatus (Squamata : Tropiduridae) em areas de restinga da costa sudeste e sul-nordeste do Brasil : aspectos reprodutivos, ecologia termica e comunidades de nematodeos associados
Studies of geographical ecology can detect variation in a species ecological attributes along its geographical range, and determine the extent to which historical factors and/or local environmental factors can explain such variations. The wide geographic distribution of the tropidurid lizard Tropidurus torquatus makes it a good model for geographical ecology
Publicado em: 2003
-
15. Ecologia de mabuya frenata (Sauria, scincidade) em uma area de afloramentos rochosos no sudeste do Brasil
Mabuya frenata is a relatively common skink in the area of Fazenda Manga, Valinhos, SP, which has a highly seasonal climate. In this study, various aspects of its ecology (activity, thermal ecology, habitat use and diet) were analysed in the area at issue. Its activity comprised almost all diurnal period and differed between seasons, being more uniform along
Publicado em: 1995
-
16. Size, shape, and the thermal niche of endotherms
A key challenge in ecology is to define species' niches on the basis of functional traits. Size and shape are important determinants of a species' niche but their causal role is often difficult to interpret. For endotherms, size and shape define the thermal niche through their interaction with core temperature, insulation, and environmental conditions, deter
National Academy of Sciences.
-
17. Thermal ecology of Naegleria fowleri from a power plant cooling reservoir.
The pathogenic, free-living amoeba Naegleria fowleri is the causative agent of human primary amebic meningoencephalitis. N. fowleri has been isolated from thermally elevated aquatic environments worldwide, but temperature factors associated with occurrence of the amoeba remain undefined. In this study, a newly created cooling reservoir (Clinton Lake, Illinoi
-
18. Ecology of Sulfur-Oxidizing Bacteria in Hot Acid Soils
Hot acid soils in Yellowstone National Park are rich in elemental sulfur and harbor extensive populations of sulfur-oxidizing bacteria. Thiobacillus thiooxidans is found at temperatures below 55 C, and at temperatures from 55 to 85 C Sulfolobus acidocaldarius is present. The distribution of these bacteria as a function of temperature was measured by a most-p
-
19. Eggs, enzymes, and evolution: natural genetic variants change insect fecundity.
Phosphoglucose isomerase genotypes in the butterfly Colias differ dramatically in biochemical properties. These differences were evaluated earlier, using metabolic network theory, to predict, successfully, their effects on glycolytic metabolism and hence on Colias flight capacity and several consequent fitness components in the wild. Female egg-laying, not p
-
20. An Assessment of "Hidden" Heterogeneity within Electromorphs at Three Enzyme Loci in Deer Mice
Allelic heterogeneity within protein electromorphs at three loci was examined in populations of deer mice (Peromyscus maniculatus) collected from five localities across North America. We used a variety of electrophoretic techniques (including several starch and acrylamide conditions, gel-sieving, and isoelectric focusing) plus heat denaturation. Of particula
-
21. Radioassay for Hydrogenase Activity in Viable Cells and Documentation of Aerobic Hydrogen-Consuming Bacteria Living in Extreme Environments
An isotopic tracer assay based on the hydrogenase-dependent formation of tritiated water from tritium gas was developed for in life analysis of microbial hydrogen transformation. This method allowed detection of bacterial hydrogen metabolism in pure cultures or in natural samples obtained from aquatic ecosystems. A differentiation between chemical-biological
-
22. Adaptation at Specific Loci. II. Demographic and Biochemical Elements in the Maintenance of the Colias Pgi Polymorphism
Demographically oriented sampling in the wild and biochemical study of allozymes in the laboratory have been used to probe maintenance of the phosphoglucose isomerase polymorphism of Colias butterflies.—The several alleles at this locus show negative or no covariation among their frequencies in the wild. This rules out Wahlund effects as a cause of observa