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Historical Continuity (historical + continuity)
Selected AbstractsPerceived collective continuity: seeing groups as entities that move through timeEUROPEAN JOURNAL OF SOCIAL PSYCHOLOGY, Issue 6 2007Fabio Sani This paper presents two studies, conducted in two different countries, investigating perceptions of ingroups as enduring, temporally persistent entities, and introduces a new instrument measuring ,perceived collective continuity' (PCC). In Study 1 we show that perceptions of ingroup continuity are based on two main dimensions: perceived cultural continuity (perceived continuity of norms and traditions) and perceived historical continuity (perceived interconnection between different historical ages and events). This study also allows the construction of an internally consistent PCC scale including two subscales tapping on these two dimensions. Study 2 replicates findings from the first study; it also reveals that PCC is positively correlated to a set of social identity-related measures (e.g., group identification and collective self-esteem), and that its effects on these measures are mediated by perceived group entitativity. Overall, these two studies confirm that PCC is an important theoretical construct, and that the PCC scale may become an important instrument in future research on group processes and social identity. Copyright © 2007 John Wiley & Sons, Ltd. [source] Against the notion of a ,new racism'JOURNAL OF COMMUNITY & APPLIED SOCIAL PSYCHOLOGY, Issue 6 2005Colin Wayne Leach Abstract Despite the de jure equality achieved in the second half of the 20th century, racial discrimination and racist political movements persist. This has encouraged the orthodoxy that a ,new racism' serves as an ideological basis of contemporary white investment in racial inequality in Western Europe, North America and Australasia. It is argued that this ,new racism' is shown in more subtle and indirect formal expressions, such as a denial of societal discrimination, rather than the once popular expressions of ,old-fashioned' genetic inferiority and segregationism. In opposition to this conceptualization, I review quantitative and qualitative studies from social psychology, sociology and political science, as well as historical analyses, to show that the ,old-fashioned' formal expression of racism was not especially popular before de jure racial equality and is not especially unpopular now. I also show that there is nothing new about formal expressions that criticize cultural difference or deny societal discrimination. Thus, there is greater historical continuity in racism than the notion of a ,new racism' allows. This suggests that the first task of a critical social psychology of racism is a proper conceptualization of racism itself. Copyright © 2005 John Wiley & Sons, Ltd. [source] Gene diversity in a fragmented population of Briza media: grassland continuity in a landscape contextJOURNAL OF ECOLOGY, Issue 1 2006HONOR C. PRENTICE Summary 1We investigated patterns of allozyme variation in demes of the grass Briza media in semi-natural grassland fragments within a mosaic agricultural landscape on the Baltic island of Öland. In the study area, Briza is both a characteristic species of old pastures and an early colonizer of young grasslands developing on previously forested or arable sites. 2Generalized linear models revealed that descriptors of both present landscape structure and past grassland history are significant determinants of genetic variation in the Briza demes. Genetic structure and levels of within-deme diversity are influenced by the size of grassland fragments, the type of habitat surrounding the grasslands, the size/spatial extent of the demes, the geographic position of the demes and the historical continuity of the grassland fragments. 3Gene diversity (H) was higher in demes from grassland polygons with a high proportion of adjacent grassland, higher in the more extensive demes, and decreased northwards within the study area. 4The negative association between the inbreeding coefficient (FIS) and grassland continuity is interpreted in terms of a two-stage colonization process: recruitment into young grasslands leads initially to spatial patchiness, but subsequent selection in maturing pastures occurs within an increasingly uniform and dense sward. 5Despite a weak overall genetic structure (as indicated by Bayesian cluster analysis) the between-deme FST was significant. Linear discriminant analysis of within-deme allele frequencies grouped the demes according to the age and previous land-use history of their grassland polygons. The convergence of the allele frequency profiles in the younger grasslands towards those of the old grasslands is consistent with convergence of selective regimes as pastures mature towards an increasingly uniform, dense sward and characteristic species assemblage. 6The genetic composition of demes of a grassland species appears to be influenced by the process of plant community convergence during grassland development , complementing the recent finding that convergence of species composition in experimental assemblages of grassland plants is dependent on the genotypic composition of the component species. [source] Genetic evidence for historical continuity between populations of the Australian freshwater fish Craterocephalus stercusmuscarum (Atherinidae) east and west of the Great Dividing RangeJOURNAL OF FISH BIOLOGY, Issue 2001D. J. McGlashan The freshwater Craterocephalus stercusmuscarum (Atherinidae) has a broad northern and south-eastern Australian distribution, and has been divided into two sub-species. Craterocephalus stercusmuscarum fulvus occurs in eastern and western flowing drainages of the southeast, while C. s. stercusmuscarum occurs in north eastern and northern flowing drainages. Four populations of each sub-species were sampled from different river systems to examine if genetic diversity was consistent with this nomenclature or a previously proposed vicariance hypothesis. Allozyme data did not support the notion that the subspecies were genetically distinct, but the mtDNA data showed that haplotypes from one sub-species, regardless of geography, were reciprocally monophyletic to haplotypes of the other subspecies. Thus, mtDNA genetic diversity was partitioned by prevailing taxonomy and the data suggest that C. s. fulvus populations in eastern and western flowing drainages may have had a relatively recent connection subsequently interrupted by geological events. [source] | ||||||||||