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| Registros recuperados: 4.174 | |
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| Goulletquer, Philippe. |
| A bibliography of over 1,400 papers on reproduction, recruitment, genetic, pathology, basic biology, and the geographic distribution of the Manila clam Tapes philippinarum is compiled to provide a guide to scientists. This review aims to facilitate access and diffusion of scientific works carried out on this species to the international scientific community concerned by Tapes philippinarum. The bibliography includes publications as well as grey literature published around the world since the early century. Moreover, the large synonymy of Tapes philippinarum and the species geographic distribution are reviewed and updated. The species importance is assessed through public fishery landings and aquaculture production per country. The D'v'eral1 worldwide... |
| Tipo: Text |
Palavras-chave: Bibliography; Tapes philippinarum; Manila clam; Synthèse bibliographique; Tapes philippinarum; Manila clam. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/rapport-3221.pdf |
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| Nielsen,D.R.; Hopmans,J.W.; Kutílek,M.; Wendroth,O.. |
| We initially review basic concepts of the forces acting on soil water, soil water potential and soil water retention, and equations to describe soil water movement under water-saturated and unsaturated conditions. Processes of infiltration, evaporation and redistribution of water will be presented for simple initial and boundary conditions occurring within homogeneous soil columns. Next we consider the physical, chemical and biological processes within a soil profile that distribute, dilute or concentrate solute species within the liquid phase of a soil The relative concentration of solutes in the liquid phase governs not only the retention and transport of water within soils but also contributes to our understanding of managing the quality of water within... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solute transport; Regionalized variable. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000300012 |
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| The genetic variability of six tamarin taxa, genus Saguinus, was analyzed comparatively using protein data from eleven systems coded by 15 loci. S. fuscicollis weddelli and S. midas midas were the most polymorphic taxa, and S. bicolor the least. The results of the phylogenetic analyses (UPGMA and neighbor-joining) and the genetic distances between taxa were generally consistent with their geographic and probable phylogenetic relationships. Analyses of the S. bicolor and S. midas populations suggested that they represent no more than three subspecies of a single species, S. midas, with the bicolor forms belonging to a single subspecies, S. midas bicolor. If supported by additional studies, this would have important implications for the conservation of the... |
| Tipo: Info:eu-repo/semantics/other |
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| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551997000100003 |
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| Ethier, Robert G.; Poe, Gregory L.; Schulze, William D.; Clark, Jeremy. |
| To date, much of the policy and research debate on contingent valuation mode effects has relied on experiences drawn from other research disciplines. This study provides the first contingent valuation phone-mail comparison that meets current standards for response rates, draws from a general population, is relevant to the valuation of general environmental goods, and allows comparisons with actual sign-ups. Consistent with previous research in other disciplines, social desirability bias is found in responses to subjective questions --thus leading to more environmentally favorable responses on the phone. However, this effect does not carry over to hypothetical participation decisions. Hypothetical bias is found in both modes. Yet, application of calibration... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 1997 |
URL: http://purl.umn.edu/7245 |
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| Hughes, David W.; Harrison, R. Wes. |
| The objective of this study is to measure and analyze the effects of structural change in the agribusiness sector on parish economies in Louisiana. Specific objectives are: (1) to measure changing patterns of employment in Louisiana's agribusiness sector, (2) to analyze the impacts of structural change on the contribution of agribusiness to total employment in individual parishes, and (3) to identify any rural-to-urban or urban-to-rural shifts in the geographic location of employment resulting from structural changes in agribusiness industries. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Labor and Human Capital; Agribusiness. |
| Ano: 1997 |
URL: http://purl.umn.edu/31684 |
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| Registros recuperados: 4.174 | |
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