Phylogeny of Dasyophthalma butterflies (Lepidoptera, Nymphalidae, Brassolini)

This study provides a species-level phylogeny and morphological characterization for the Neotropical brassoline genus Dasyophthalma Westwood, 1851. A revised generic definition is given, and two species groups are proposed. Diagnoses and illustrations of habitus and genitalia are provided for all species. Wing color, male scent organs, and male and female genitalic morphology are characterized and discussed

Phylogenetic Revision of Eryphanis Boisduval, with a Description of a New Species from Ecuador (Lepidoptera, Nymphalidae)

This study provides a species-level phylogeny for the Neotropical brassoline genus Eryphanis Boisduval based on 43 morphological characters. A revised generic definition is given. Three subspecies are elevated to species status and a new species is described; E. bubocula (Butler, 1872), status revised; E. lycomedon (C. Felder and R. Felder, 1862), status revised; E. opimus (Staudinger, 1887), status revised; and E. greeneyi Penz and DeVries, new species. Diagnoses, annotated redescriptions, and illustrations of habitus and genitalia are provided for the nine Eryphanis species

The history of the mainstream rejection of interdependent preferences

The notion of interdependent preferences has a long history in economic thought. It can be found in the works of authors such as Hume, Rae, Genovesi, Smith, Marx and Mill among others. In the 20th century, the idea became more widespread mainly through the works of Veblen and Duesenberry. Recently, an increasing number of theorists are interested in issues like reference income, relative consumption and positional goods which are all based on the concept of interdependent preferences. However, such preferences were never part of the corpus of orthodox theory. For instance, although Pareto and Marshall were aware of their existence, they rejected their incorporation into economic theory. There were various reasons for this rejection. The structure of mainstream economic methodology might be one reason. Another reason had to do with the theoretical implications of adopting interdependent preferences. The paper discusses the main historical aspects of this idea in relation to the mainstream resistance to incorporate it in orthodox economic theory

Large Scale Structure: Setting the Stage for the Galaxy Formation Saga

Over the past three decades the established view of a nearly homogeneuous, featureless Universe on scales larger than a few Megaparsec has been completely overhauled. In particular through the advent of ever larger galaxy redshift surveys we were revealed a galaxy distribution displaying an intriguing cellular pattern in which filamentary and wall-like structures, as well as huge regions devoid of galaxies, are amongst the most conspicuous morphological elements. In this contribution we will provide an overview of the present observational state of affairs concerning the distribution of galaxies and the structure traced out by the matter distribution in our Universe. In conjunction with the insight on the dynamics of the structure formation process obtained through the mapping of the peculiar velocities of galaxies in our local Universe and the information on the embryonic circumstances that prevailed at the epoch of Recombination yielded by the various Cosmic Microwave Background experiments, we seek to arrive at a more or less compelling theoretical framework of structure formation.The main aspects of this framework of the rise of structure through gravitational instability can probably be most readily appreciated through illustrative examples of various scenarios, as for instance provided by some current state-of-the-art N-body simulations. We will subsequently wrap up the observational and theoretical evidence for the emergence and evolution of structure in the Universe by sketching the stage for the ultimate Holy Grail of late 20th century astrophysics, understanding the saga of the formation of what arguably are the most prominent and at the same time intoxicatingly beautiful and intriguing denizens of our Cosmos, the {\it galaxies}.Comment: 25 pages, 7 figures. Invited Review at `The most distant radio galaxies' KNAW Colloquium, Amsterdam, October 1997, eds Best et al., Kluwer. 25 pages of LaTex including 7 postscript (bitmapped) figures. Uses knawproc.cl

Polymorphism in cepaea nemoralis (l)

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Dynamics of multiple sexual signals in relation to climatic conditions

Question: Can trait-specific phenotypic plasticity in response to annual environmental variation lead to changes in the strength of sexual selection through the relative expression of sexual ornaments at the population level? Data description: We recorded breeding dates and the sizes of white forehead and wing patches of male collared flycatchers (Ficedula albicollis) from 1998 to 2005 in a nestboxbreeding population in the Pilis Mountains, Hungary. As environmental predictors, we used the North Atlantic Oscillation (NAO) index and local weather data, classified as direct or indirect effects relative to the moult of the given ornament. Search method: First, we used general linear mixed models to assess environmental effects on the within-individual changes and absolute yearly sizes of forehead and wing patches. We then used similar models to determine whether the relative sizes of the two plumage traits at the population level varied among years. Finally, we used multiple regressions to establish if the relative yearly expression of an ornament affected standardized sexual selection gradients on this ornament in the given year. Conclusions: Within-individual changes in forehead and wing patch size were predicted by the climate of their moulting season (winter and summer, respectively). There was also an indirect effect of previous winter climate on changes in wing patch size. Environmental effects on the absolute expression of ornaments at the population level followed the within-individual patterns. The relative population-level expression of forehead and wing patches fluctuated significantly among years. Sexual selection on a given ornament increased with its relative expression in that year

Spatiality and transpatiality in workplace environments

It is widely considered that the physical layout of workplace environments has an influence on social interaction and therefore the social structure of an organisation. However, there is little accordance among scholars from different disciplines on exactly how the relationship between space and organisation is constituted. Empirical studies often come to different conclusions: for example, on the influence of an open-plan office on communication patterns among staff, as many studies report increases as report decreases or unchanged communication behaviours. This evidence-base is further confused since few studies make a link between a profound spatial and an organisational analysis. We suggest that the inconsistency of results is for two main reasons: first, methodologies for operationalising variables differ significantly with each study tending to analyse a distinct notion of a phenomenon. This makes further comparative conclusions and predictive modelling problematic. Second, even where the same methods are used, contradictory evidence emerges, where one organisation reacts differently to another to similar spatial conditions. This suggests that, at the core of the problem, lies an apparent lack of understanding of the nature of the space-organisation relationship. This paper explores these phenomena by drawing on the results of various case studies conducted over the last few years in diverse organisational settings (a university, a research institute, and in corporate media companies). Two main lines of argument will be developed: first we will show that some influences of space on organisational behaviour seem to be generic. Understanding of these generic influences may be used to design spaces enhancing interaction and knowledge flow for any type of organisation. Second, we outline how organisations depend on context, culture and character, and may react to similar spatial configurations in a unique way. We will suggest why this may be the case, referring to Hillier and Hanson's notion of spatial and transpatial modes of social cohesion. The two underlying theoretical concepts, i.e. space as 'generic function' and spatial versus transpatial operations will be discussed concerning their application to, and meaningfulness for, workplace environments. Finally, inferences are drawn for the practice of evidence-based design