|
|
|
| Registros recuperados: 14 | |
|
|
| Valenzuela,Carlos Y. |
| In three cities of Chile (Santiago, Valparaiso, Valdivia) the A allele and phenotype (ABO blood group) are more frequent in the higher socioeconomic strata (SES) and the O allele and phenotype are in the lower ones. This constitutes a structured sociogenetic cline (SGC). The B allele and phenotypes (B+AB) present a rather erratic or contradictory distribution among SES. This SGC was also found in England. The standard interpretation of the origin and maintenance of this SGC in Chile is founded on socio-ethno-historic-cultural and drift factors followed by socioeconomic assortative mating that has occurred since the origin of Chileans by the admixture of Europeans and Amerindians. This interpretation is insufficient to explain the coincidence of the cline... |
| Tipo: Journal article |
Palavras-chave: ABO; Chile; England; Rh; Socioeconomic strata; Sociogenetics. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000400012 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Williams, R.B.. |
| The locomotory behaviour and functional morphology of English populations of a small (<2 cm long), burrowing athenarian sea anemone, Nematostella vectensis Stephenson, 1935 (= N. pellucida Crowell, 1946), which lives in soft mud in salt marshes and creeks, are described. Objectives were to ascertain the specific stimuli and environmental conditions determining when and how locomotion is employed, and to assess survival values. Experimentation and anatomical examination revealed how anemones move, and their functional morphology was interpreted in a physiological context. Finally, locomotion, morphology and habitat were compared for several athenarian anemones, to ascertain what correlations there are, if any. Essential environmental conditions for N.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Behaviour; Burrowing; Climbing; Creeping; England; Functional morphology; Locomotion; Musculature; Nematostella vectensis; Rugae; Sea anemones; 42.79. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/220581 |
| |
|
|
| Donovan, S.K.; Lewis, D.N.. |
| The specific diversity of fossil crinoids from the Much Wenlock Limestone Formation at Dudley, Worcestershire, and in Shropshire differ by an order of magnitude. The latter are relatively depauperate and include only about six nominal species. Over 165 years ago, a specimen from Coalbrookdale, Shropshire, was identified as Cyathocrinites tuberculatus Miller (= the taxocrinid flexible Protaxocrinus tuberculatus (Miller)). This specimen, although indifferently preserved, is distinct from other Silurian crinoids of the British Isles and is described herein as a monobathrid camerate, Macrostylocrinus? jefferiesi sp. nov. This species has a moderately large, conical dorsal cup with at least 20 arms, broad primibrachials, a granular surface sculpture and no ray... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Systematics; Crinoids; Macrostylocrinus; Wenlock; Silurian; England; 42.72; 38.22. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/314207 |
| |
|
| |
|
| |
|
|
| Mathieson, S.; Cattrijsse, A.; Costa, M.J.; Drake, P.; Elliot, M.; Gardner, J.; Marchand, J.. |
| In considering the use of estuarine habitats by fish assemblages, alternative views of the assemblage are increasingly being explored, based on functional rather than taxonomic aspects. The allocation of all taxa to a number of functional guilds allows a description of fish assemblages in terms of vertical zonation, habitat preferences, including the substratum preference of benthic/demersal species, and dietary preferences. This paper presents the first comparison of the structure of the fish assemblages in the tidal marshes of 6 European estuaries (Bay of Cadiz, Spain; Mira, Portugal; Loire, France; Westerschelde, The Netherlands; Humber, UK; Forth, UK). Cluster analysis was used to compare the assemblages recorded in 29 tidal marsh and associated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Check lists Salt marshes Species diversity Statistical analysis Taxonomy Trophic relationships Teleostei ANE; British Isles; England; Humberside; Humber Estuary ANE; British Isles; Scotland; Firth of Forth ANE; France; Pays de Loire; Loire Estuary. |
| Ano: 2000 |
URL: http://www.vliz.be/imisdocs/publications/100422.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Pearson, David; Bailey, Alison P.. |
| There is widespread support from Government, media and consumers for local food networks. The profile of local food buyers and their expectations has been explored and we have some knowledge of its social, economic and environmental contribution. This research contributes by exploring the structure and scope of local food activities. This paper reports on a one year scoping study that examined local food within two contrasting countries, England and Australia. It used a literature review and interviews with key stakeholders to identify the business opportunities that exist in this sector. In conclusion there are many more local food activities in England than in Australia. Further, at a national level in both countries it remains fragmented and confused.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Local food; Business; England; Australia; Community/Rural/Urban Development. |
| Ano: 2009 |
URL: http://purl.umn.edu/51067 |
| |
| Registros recuperados: 14 | |
|
|
|
