Analyzing political conservatism as motivated social cognition integrates theories of personality (authoritarianism, dogmatism-intolerance of ambiguity), epistemic and existential needs (for closure, regulatory focus, terror management), and ideological rationalization (social dominance, system justification). A meta-analysis (88 samples, 12 countries, 22,818 cases) confirms that several psychological variables predict political conservatism: death anxiety (weighted mean r ϭ .50); system instability (.47); dogmatism-intolerance of ambiguity (.34); openness to experience (-.32); uncertainty tolerance (-.27); needs for order, structure, and closure (.26); integrative complexity (-.20); fear of threat and loss (.18); and self-esteem (-.09). The core ideology of conservatism stresses resistance to change and justification of inequality and is motivated by needs that vary situationally and dispositionally to manage uncertainty and threat.Conservatism is a demanding mistress and is giving me a migraine.-George F. Will, BuntsFor more than half a century, psychologists have been tracking the hypothesis that different psychological motives and tendencies underlie ideological differences between the political left and the right. The practice of singling out political conservatives for special study began with Adorno, Frenkel-Brunswik, Levinson, and Sanford's (1950) landmark study of authoritarianism and the fascist potential in personality. An asymmetrical focus on right-wing authoritarianism (RWA) was criticized heavily on theoretical and methodological grounds (e.g., Christie, 1954;Eysenck, 1954;Rokeach, 1960;Shils, 1954), but it has withstood the relentless tests of time and empirical scrutiny (e.g., Altemeyer, 1981Altemeyer, , 1988Altemeyer, , 1996Altemeyer, , 1998Billig, 1984;Brown, 1965;Christie, 1991;Elms, 1969;Sidanius, 1985;W. F. Stone, 1980;W. F. Stone, Lederer, & Christie, 1993;Tetlock, 1984;Wilson, 1973c). A voluminous literature, which we review here, facilitates the comparison of cognitive styles and motivational needs of political conservatives with those of moderates, liberals, radicals, and left-wingers. In addition to classic and contemporary approaches to authoritarianism, we cover less obvious sources of theory and research on individual differences associated with dogmatism and intolerance of ambiguity, uncertainty avoidance, need for cognitive closure, and social dominance orientation (SDO) insofar as each of these psychological variables contributes to a deeper and more nuanced understanding of political conservatism.The study of authoritarianism and other personality theories of political attitudes is often dismissed a priori as an illegitimate, value-laden attempt to correlate general psychological profiles with specific ideological beliefs (e.g., Durrheim, 1997; J. L. Martin, 2001;Ray, 1988). The psychological study of ideological conservatism is one that invites controversy (e.g., Redding, 2001;Sears, 1994;Sidanius, Pratto, & Bobo, 1996;Sniderman & Tetlock, 1986;Tetlock, 1994;Tetlock & Mitchell,...

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A meta-analysis by J. T. Jost, J. Glaser, A. W. Kruglanski, and F. J. Sulloway (2003) concluded that political conservatism is partially motivated by the management of uncertainty and threat. In this reply to J. Greenberg and E. Jonas (2003), conceptual issues are clarified, numerous political anomalies are explained, and alleged counterexamples are incorporated with a dynamic model that takes into account differences between "young" and "old" movements. Studies directly pitting the rigidity-of-the-right hypothesis against the ideological extremity hypothesis demonstrate strong support for the former. Medium to large effect sizes describe relations between political conservatism and dogmatism and intolerance of ambiguity; lack of openness to experience; uncertainty avoidance; personal needs for order, structure, and closure; fear of death; and system threat.

How do parents recognize their offspring when the cost of making a recognition error is high? Avian brood parasite-host systems have been used to address this question because of the high cost of parasitism to host fitness. We discovered that superb fairy-wren (Malurus cyaneus) females call to their eggs, and upon hatching, nestlings produce begging calls with key elements from their mother's "incubation call." Cross-fostering experiments showed highest similarity between foster mother and nestling calls, intermediate similarity with genetic mothers, and least similarity with parasitic Horsfield's bronze-cuckoo (Chalcites basalis) nestlings. Playback experiments showed that adults respond to the begging calls of offspring hatched in their own nest and respond less to calls of other wren or cuckoo nestlings. We conclude that wrens use a parent-specific password learned embryonically to shape call similarity with their own young and thereby detect foreign cuckoo nestlings.

Species hybridization can lead to fitness costs, species collapse, and novel evolutionary trajectories in changing environments. Hybridization is predicted to be more common when environmental conditions change rapidly. Here, we test patterns of hybridization in three sympatric tree finch species (small tree finch Camarhynchus parvulus, medium tree finch Camarhynchus pauper, and large tree finch: Camarhynchus psittacula) that are currently recognized on Floreana Island, Galápagos Archipelago. Genetic analysis of microsatellite data from contemporary samples showed two genetic populations and one hybrid cluster in both 2005 and 2010; hybrid individuals were derived from genetic population 1 (small morph) and genetic population 2 (large morph). Females of the large and rare species were more likely to pair with males of the small common species. Finch populations differed in morphology in 1852-1906 compared with 2005/2010. An unsupervised clustering method showed (a) support for three morphological clusters in the historical tree finch sample (1852-1906), which is consistent with current species recognition; (b) support for two or three morphological clusters in 2005 with some (19%) hybridization; and (c) support for just two morphological clusters in 2010 with frequent (41%) hybridization. We discuss these findings in relation to species demarcations of Camarhynchus tree finches on Floreana Island.