Deep Ecology
Mostrando 13-24 de 31 artigos, teses e dissertações.
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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
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14. Culture inavouée dans la nature, nature soumise dans la culture
A partir da idéia que se faz de natureza é possível desenvolver, seja uma apologia da ordem no cosmos, seja um argumento para justificar a existência de um Deus senhor do trovão e das estações, seja o encantamento de um retorno ao estado de natureza supostamente sem conflitos, seja enfim a convicção materialista de que o homem deve dominar sua gula
Horizontes Antropológicos. Publicado em: 2001-12
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15. Ecologia comportamental e de interações com plantas hospedeiras em Phyllophaga cuyabana (Moser) (Coleoptera:Melolonthidae, Melolonthinae) e implicações para o seu manejo em cultura de soja
Soybean (Glycine max (L.) Merrill) is an introduced crop which has been expanding in Brazil during the last four decades. There are still some nutricional niches unoccupied or inefficiently explored by arthropods and other colonizing herbivores. Some insects with subterranean habitat have been considered soybean pests in Brazil in the last ten years, probabl
Publicado em: 1997
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16. Latitudinal gradients of species richness in the deep-sea benthos of the North Atlantic
Latitudinal species diversity gradients (LSDGs) in the Northern Hemisphere are the most well established biogeographic patterns on Earth. Despite long-standing interest in LSDGs as a central problem in ecology, their explanation remains uncertain. In terrestrial as well as coastal and pelagic marine ecosystems, these poleward declines in diversity typically
The National Academy of Sciences.
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17. Phosphoglycerides of Trichophyton terrestre and One Phenotype Selected from the Apollo 16 Microbial Ecology Evaluation Device
Total lipid extracted from wild-type Trichophyton terrestre CDC-X285 was found to be 2.0% of the dry cell weight. The total lipid contained the following phospholipid components identified by silicic acid-impregnated thin-layer and paper chromatography: phosphatidyl inositol, phosphatidyl choline, phosphatidyl serine, and phosphatidic acid. The total lipid e
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18. Correlations Between Virulence and Other Characters of Clostridium perfringens Type A
The correlation analysis which has already proved its value in ecology has not yet been applied to the determination of virulence indicators. Its application to a group of Clostridium perfringens type A strains has brought out some characters that may be considered as virulence indicators. This study suggests that the toxicity of the culture supernatant flui
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19. Stable isotopes document the trophic structure of a deep-sea cephalopod assemblage including giant octopod and giant squid
Although deep-sea cephalopods are key marine organims, their feeding ecology remains essentially unknown. Here, we report for the first time the trophic structure of an assemblage of these animals (19 species) by measuring the isotopic signature of wings of their lower beaks, which accumulated in stomachs of stranded sperm whales. Overall, the species encomp
The Royal Society.
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20. Novel Eukaryotes from the Permanently Anoxic Cariaco Basin (Caribbean Sea)†
Present knowledge of microbial diversity is decidedly incomplete (S. J. Giovannoni and M. S. Rappé, p. 47-84, in D. Kirchman, ed., Microbial Ecology of the Oceans, 2000; E. Stackebrandt and T. M. Embley, p. 57-75, in R. R. Colwell and D. J. Grimes, ed., Nonculturable Microorganisms in the Environment, 2000). Protistan phylogenies are particularly deficient
American Society for Microbiology.
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21. Mixotrophs combine resource use to outcompete specialists: Implications for aquatic food webs
The majority of organisms can be grouped into those relying solely on photosynthesis (phototrophy) or those relying solely on the assimilation of organic substances (heterotrophy) to meet their requirements for energy and carbon. However, a special life history trait exists in which organisms combine both phototrophy and heterotrophy. Such “mixotrophy” i
National Academy of Sciences.
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22. Incidence and Diversity of Microorganisms within the Walls of an Active Deep-Sea Sulfide Chimney
A large, intact sulfide chimney, designated Finn, was recovered from the Mothra Vent Field on the Juan de Fuca Ridge in 1998. Finn was venting 302°C fluids on the seafloor and contained complex mineralogical zones surrounding a large open central conduit. Examination of microorganisms within these zones, followed by community analysis with oligonucleotide p
American Society for Microbiology.
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23. 16S rRNA genes reveal stratified open ocean bacterioplankton populations related to the Green Non-Sulfur bacteria.
Microorganisms play an important role in the biogeochemistry of the ocean surface layer, but spatial and temporal structures in the distributions of specific bacterioplankton species are largely unexplored, with the exceptions of those organisms that can be detected by either autofluorescence or culture methods. The use of rRNA genes as genetic markers provi
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24. Ecology and Physiology of the Competition for Light Between Chlorobium limicola and Chlorobium phaeobacteroides in Natural Habitats
Accurate studies of the pigment composition and isolation in pure cultures of Chlorobiaceae from samples of eight Spanish lakes show that there are two main coexisting groups of green and brown Chlorobium spp. represented respectively by Chlorobium limicola and Chlorobium phaeobacteroides. Laboratory experiments with pure and mixed cultures of the isolated s