Mirror-Directed Social Behaviors of Garnett's Greater Bush Baby (Otolemur garnettii)

Many diurnal anthropoid species direct social behaviors toward their own mirror-image as though viewing a conspecific. To determine whether a nocturnal prosimian species would behave similarly, we videotaped social responses of 45 Garnett's greater bush babies (Otolemur garnettii) observing mirror-images for the first time, scored them for frequency and duration, and compared them with the same behaviors directed elsewhere in the test apparatus. Males scentmarked more than females did, principally with the hindfoot, and most when in immediate proximity to the mirror. Bush babies displayed bipedal posture and threat gestures when oriented directly toward a mirror from a near position. Orientation toward the mirror also increased the frequency of arched-back postures; however, this behavior was not contingent on proximity to the mirror or visibility of the mirror-image. The differential expression of specific behaviors toward mirror-images by male and female bush babies supports the view that this nocturnal prosimian, thought to be dependent on olfaction and audition for communication, is capable of specific recognition by visual cues alone.     

Interactions between Social Structure,Demography, and Transmission Determine Disease Persistence in Primates

Catastrophic declines in African great ape populations due to disease outbreaks have been reported in recent years, yet we rarely hear of similar disease impacts for the more solitary Asian great apes, or for smaller primates. We used an age-structured model of different primate social systems to illustrate that interactions between social structure and demography create ‘dynamic constraints’ on the pathogens that can establish and persist in primate host species with different social systems. We showed that this varies by disease transmission mode. Sexually transmitted infections (STIs) require high rates of transmissibility to persist within a primate population. In particular, for a unimale social system, STIs require extremely high rates of transmissibility for persistence, and remain at extremely low prevalence in small primates, but this is less constrained in longer-lived, larger-bodied primates. In contrast, aerosol transmitted infections (ATIs) spread and persist at high prevalence in medium and large primates with moderate transmissibility;, establishment and persistence in small-bodied primates require higher relative rates of transmissibility. Intragroup contact structure – the social network - creates different constraints for different transmission modes, and our model underscores the importance of intragroup contacts on infection prior to intergroup movement in a structured population. When alpha males dominate sexual encounters, the resulting disease transmission dynamics differ from when social interactions are dominated by mother-infant grooming events, for example. This has important repercussions for pathogen spread across populations. Our framework reveals essential social and demographic characteristics of primates that predispose them to different disease risks that will be important for disease management and conservation planning for protected primate populations.     

Evolutionary Epistemology, Social Epistemology, and the Demic Structure of Science

One of the principal difficulties in assessing Science as aProcess (Hull 1988) is determining the relationship between the various elements of Hull's theory. In particular, it is hard to understand precisely how conceptual selection is related to Hull's account of the social dynamics of science. This essay aims to clarify the relation between these aspects of his theory by examining his discussion of the``demic structure' of science. I conclude that the social account cando significant explanatory work independently of the selectionistaccount. Further, I maintain that Hull's treatment of the demicstructure of science points us toward an important set of issues insocial epistemology. If my reading of Science as a Process iscorrect, then most of Hull's critics (e.g., those who focus solelyon his account of conceptual selection) have ignored promisingaspects of his theory.     

Foucault in the Bush. The Social Life of Post-Structuralist Theory in East Berlin's Prenzlauer Berg

This essay seeks to make critical theory an object of ethnographic con-textualization and inquiry through an exploration of the social life of post-structuralist theory in 1980s East Berlin. The 'Prenzlauer Berg Scene' of artists and writers utilized post-structuralism as a distinctive register for defining their social identity and as an analytical and interpretive paradigm for articulating their alienation from the state-crafted language of GDR public culture. The essay discusses how the subversive practice of post-structuralism in the Prenzlauer Berg came at the price of linguistic exclusion and political withdrawal from mainstream GDR society. In conclusion, it is argued that the Prenzlauer Berg case emblematizes the difficulty of politicizing expert theoretical registers since these registers' objective critical 'power' relies upon structures of epistemic inequity that cultivate distinctions between critical experts and naïve practitioners.     

Syncretic Persons: Sociality,Agency and Personhood in Recent Charismatic Ritual Practices among North Mekeo (PNG)

This paper explores the syncretic accommodations made by North Mekeo (PNG) villagers arising from recent historical encounters with Catholic (Sacred Heart) missionaries over issues of ritual authenticity and effectiveness, personhood, and agency in a wider field of Christian evangelism and globalisation. Through a careful examination and comparison of pre‐existing ritual notions and practices (e.g., sorcery techniques, mortuary ritual performance, gender rituals) and the recent trends of commodification and enthusiastic Catholic charismatic performance, what might appear to be incongruous religious beliefs and practices are shown to possess numerous remarkably compatible similarities at the level of explicit cultural categorisation and ritual enactment. In accord with long‐standing anthropological arguments, recent North Mekeo syncretism thus consists of an integrated, albeit transformed rather than ‘confused’, mixing of indigenous and exogenous religious elements. Further, in this analysis of recent Melanesian religious change syncretism implies a novel conceptual convergence between syncretic processes and the dynamics of personhood, sociality and agency as construed in the framework of the ‘new Melanesian ethnography’.     

Group Structure and Stability in Social Aggregations of White's Skink, Egernia whitii

Most lizards display relatively simple social systems, but more complex and stable social aggregations appear to be common in one lineage of Australian skinks, the Egernia Group. Previous studies on this lineage have focused on species inhabiting crevices in large and disjunct rocky outcrops. Here, we describe the social organization of White's skink, Egernia whitii, a burrowing species that inhabits rocky habitats in southeastern Australia. We examined social group size, composition and stability over two field seasons using a capture‐mark‐recapture study, behavioral observations and genetic analyses. Twenty‐four social groups, each comprising two to six individuals, were present at our study site, with 75% of lizards belonging to a social grouping. A higher proportion of adults than juveniles were part of a group, while more adult females belonged to a group than adult males. Groups generally comprised a single adult pair or an adult pair with juveniles. However, groups comprising one male with multiple females and multiple individuals of both sexes also were present. Groups were highly stable throughout the study, although individual group members were observed singly on half of all observations. Paternity analysis using four microsatellite loci revealed that juveniles within groups were closely related to adults in the group, with 38% living in groups with both parents and 71% in groups with at least one parent. Our data demonstrate the presence of complex sociality in a burrowing Egernia species and, together with previous studies, suggest that stable social organization is widespread across different habitats and phylogenetic groupings within the Egernia Group.     

Numbers, Turnover, and Social Structure of the Isle Royale Wolf Population

Observations of wolves on Isle Royale are reported for 1961–66,with interpretations including the earlier 3-year period describedby Mech (1966). On this 210-square-mile island the fully protectedwolf population varied from approximately 22 to 28 in midwinter.The major and minor foods were moose and beaver, respectively. The main pack varied in number between 11 and 22 with aboutthree breeding pairs believed present. The population remainedrelatively stable; mating occurred every winter; and adult mortalityappeared to be low. High mortality among pups seemed to be thepoint of population control. Socio-economic factors may havecontrolled the size of the large pack. Availability of foodduring the period of parturition and rearing probably was criticalto survival of young. Recruitment of young appeared to take place in years of highproduction of moose calves. Numbers in the large pack probablywere curtailed through the progressive exclusion of aged andsocially subordinate individuals. Under harassment these animalsseparated and became pack-following scavengers, then probablytrue loners ranging outside the area used by the pack. Smalleraggregations of two or three non-breeders were seen each winter,as were the loners, some of which appeared thin and weak. The only known breeding outside the big pack was in a groupof five present in the winter of 1965. This group was probablya family unit which separated from the main pack. A year laterthe male had disappeared, and remains of a pup, probably theirs,were found. In the winter of 1966 the alpha male of the largepack became lame and apparently was killed. This backgroundappears favorable for further changes in social organization.     

Fine Structure of a New Human Microsporidian, Encephalitozoon hellem, in Culture

Encephalitozoon hellem is a new human microsporidian isolated from corneal biopsies and conjunctival scrapings of three AIDS patients and cultured in Madin Darby canine kidney (MDCK) cells. Encephalitozoon hellem and Encephalitozoon cuniculi display different protein profiles with sodium dodecyl sulfate-polyacrylamide gel electrophoresis and unique antibody binding patterns with murine antisera against Western blots of each organism. Developmental stages of E. hellem in culture are similar to E. cuniculi. Meronts are 1.3–2.7 μm in diameter, develop within a parasitophorous vacuole adjacent to the vacuolar membrane, divide by binary fission, and contain one or two discrete nuclei. Sporonts measure 2 × 3 μm, separate from the vacuolar membrane, and have a thickened outer membrane. Sporoblasts display a tri-layered wall and possess the earliest recognized polar filaments. Mature spores measure 1 × 1.5 μm and are more electron-dense than other stages. Each spore contains a single nucleus, a polar tubule with four to nine coils, thin electron-dense exospore and thick, electron-lucent endospore. Although E. hellem and E. cuniculi differ biochemically and immunologically, their fine structure and development are indistinguishable.     

Religion and Social Structure in The Division of Labor

The article offers a thoroughgoing reinterpretation of The Division of Labor, focusing on the six-stage theory of sociocultural change that lies in the background of Durkheim's well-known contrast between the ideal types of mechanical and organic solidarity. Durkheim's characterization of each stage is described in terms of its structural-functional differentiation and religious unity. The Division's evolutionary theory, which underlies much of Durkheim's mature work, is criticized for its dated ethnographic evidence, and contrasted with alternative evolutionary proposals, including that of sociobiology.     

Ritual and the Constitution of Social Structure

The constitution and reproduction of structure through the action orientations of social actors remains a basic question in the social sciences. Most sociological theories have stressed a purposive-rational model of action in the constitution of structure. These models of action have not been able to account for either the external constraints of structure or for its internal obligatory nature. This paper argues that a theory of ritual action is able to explain both the external and the internal obligatory nature of social structure.     

Structure and Development of Rabies Virus in Tissue Culture

Structure and development of two fixed rabies virus strains in baby hamster kidney cells (BHK/21) were investigated by electron microscopy. The morphological development was correlated with fluorescent-antibody staining and infectivity titration. The uptake of virus was enhanced by addition of diethylaminoethyl dextran, and structural changes became apparent in the cytoplasm 8 to 9 hr after infection, when fluorescent-antibody staining was first discernible. These changes consisted of matrices containing fibers replacing normal cytoplasmic structures. Virus particles appeared at the edges of these matrices and inside them at 24 to 48 hr. This corresponded to significant rises in intracellular infectious virus. Formation of virus particles by budding from cell membranes was seen at 72 hr. Further incubation of the infected cells resulted in synthesis of bizarre structural elements. The complete virus particle was bullet-shaped with an average size of 180 by 75 mmu. It consisted of an inner core of filamentous material surrounded by two membranes of different densities. The surface showed a honeycomb arrangement with surface protrusions 60 to 70 A long having a knoblike structure at their distal end. These surface protrusions were absent at the flat end of the virus particle.     

Bush medicine in the Exumas and long island,bahamas a field study

Reports from native informants backed with voucher plant specimens were obtained in a 1969–1970 field study on the Bahama islands of Great Exuma, Little Exuma and Long Island. Over 130 plant species of some 60 families are used within this culture for a wide variety of medicinal purposes. Pertinent background material and personal observations during field work indicated that knowledge of “bush medicine” is fading. The information recorded includes common names of each medicinal plant, uses, and preparations. A systematic list cross-referenced with common names is provided.