Social System (social + system)

Distribution by Scientific Domains
Distribution within Life Sciences


Selected Abstracts


Elements of Resilience After the World Trade Center Disaster: Reconstituting New York City's Emergency Operations Centre

DISASTERS, Issue 1 2003
James M. Kendra
In this paper we examine the reconstitution of the Emergency Operations Centre (EOC) after its destruction in the World Trade Center attack, using that event to highlight several features of resilience. The paper summarises basic EOC functions, and then presents conceptions of resilience as understood from several disciplinary perspectives, noting that work in these fields has sought to understand how a natural or social system that experiences disturbance sustains its functional processes. We observe that, although the physical EOC facility was destroyed, the organisation that had been established to manage crises in New York City continued, enabling a response that drew on the resources of New York City and neighbouring communities, states and the federal government. Availability of resources , which substituted for redundancy of personnel, equipment and space , pre-existing relationships that eased communication challenges as the emergency developed and the continuation of organisational patterns of response integration and role assignments were among the factors that contributed to resilience following the attack. [source]


Perspectives of multi-modal contribution of honeybee resources to our life

ENTOMOLOGICAL RESEARCH, Issue 2008
Hidehiro HOSHIBA
Abstract The European honeybee, Apis mellifera, has been introduced to all continents and their products like honey, propolis, royal jelly and beeswax are well known. However, its contribution is not restricted to such direct products but extends into a much wider area. For example, the economic value of seed production by pollination exceeds the above-mentioned bee products. The application of F1 hybrid is increased to as much as 70% of commercial crops and flowers in Japan and honeybees are important pollinators in the F1 seed production. Incorporation into the large-scale biodiesel fuel production system by culturing rape and sunflower seeds etc. is relied on because it is good to construct possible zero-emission systems that reduce carbon dioxide and increase the rich by-products like honey and royal jelly. Bees' higher brain function and sophisticated social system of the colony opens new perspectives as a model system. Their individual ability to recognize even abstract concepts is comparable to that of higher primates. Rats or mice have no such ability. High performance learning ability of bees associated with proboscis extension reflex can be used to detect drugs at the airport. Function of the colony, on the other hand, is an excellent model for social physiology or a self-organization system. After the whole genome of A. mellifera was read in 2006 by the world consortium, consisting of more than 90 institutions from all over the world, many molecular biologists are coming into bee world. Nobody has yet succeeded in the challenge to make transgenic honeybee, so far, because of the difficulty in controlling the reproductive system headed by the queen. However, if someone succeeded in a breakthrough we will have stingless honeybees and a disease-resistant strain in the future. [source]


Anti-Predator Signals as Advertisements: Evidence in White-Throated Magpie-Jays

ETHOLOGY, Issue 6 2009
Jesse M. S. Ellis
Calls and displays elicited by predators usually function as alarms or to inform predators of their detection. However, predator encounters may afford some individuals the opportunity to demonstrate quality or signal their availability. Here, I report on a class of vocal signals produced in predator-elicited displays that share many characteristics with sexually selected song. White-throated magpie-jays (Calocitta formosa) display at low-threat predators while producing ,loud display calls' (LDCs). I use this term because the calls occur primarily in two display contexts (see below) though occasionally in other contexts as well. Such calls and displays are primarily produced by males, and also occur in one other context, at dawn. Playback experiments showed that despite being elicited by predators, males were more likely than females to respond to LDCs, and more likely to respond when their mate was fertile. Over 134 different call types were produced in over 200 displays by 34 males; the largest minimum repertoire size was 67. Presentations of taxidermic raptor mounts elicited some LDCs, but fewer calls and lower diversity than at dawn or in predator approach displays. The male bias and high diversity suggest that LDCs are an outcome of intersexual selection, while their elicitation by predators suggests an alarm function. I propose that male magpie-jays use predator encounters as opportunities to advertise their presence and availability as mates; they use LDCs as songs. Such a communication system seems to have been favored by the unusual social system of magpie-jays, in which female groups defend territories and males have little opportunity to defend resources for mate attraction, forcing them to advertise when females are paying the most attention, during predator encounters. [source]


Emergence and Consequences of Division of Labor in Associations of Normally Solitary Sweat Bees

ETHOLOGY, Issue 4 2009
C. Tate Holbrook
Division of labor is a pervasive feature of animal societies, but little is known about the causes or consequences of division of labor in non-eusocial cooperative groups. We tested whether division of labor self-organizes in an incipient social system: artificially induced nesting associations of the normally solitary sweat bee Lasioglossum (Ctenonomia) NDA-1 (Hymenoptera: Halictidae). We quantified task performance and construction output by females nesting either alone or with a conspecific. Within pairs, a division of labor repeatedly arose in which one individual specialized on excavation and pushing/tamping while her nestmate guarded the nest entrance. Task specialization could not be attributed to variation in overall activity, and the degree of behavioral differentiation was greater than would be expected due to random variation, indicating that division of labor was an emergent phenomenon generated in part by social dynamics. Excavation specialists did not incur a survival cost, in contrast to previous findings for ant foundress associations. Paired individuals performed more per capita guarding, and pairs collectively excavated deeper nests than single bees , potential early advantages of social nesting in halictine bees. [source]


Effects of Pair-Bond and Social Context on Male,Female Interactions in Captive Titi Monkeys (Callicebus moloch, Primates: Cebidae)

ETHOLOGY, Issue 12 2000
Eduardo Fernandez-Duque
In monogamous species, an abiding relationship between a specific adult male and a specific adult female is a defining feature of the social system. The interactions between these individuals are influenced by many factors, including not only the history of their relationship (for example, development of a mutual bond), but also the immediate effects of the prevailing social context (for example, presence and sex of extra-pair conspecifics). In this study we examined the effects of an existing bond and of social context on interactions between adult heterosexual pairs of the monogamous titi monkeys (Callicebus moloch). Twelve adult males and 12 adult females were tested with their cagemates and with an unfamiliar partner of the opposite sex in five social contexts: (1) mated male,female pair; (2) unfamiliar pair; (3) single female; (4) single male; and (5) empty stimulus cage. Results show that mated pairs were more affiliative than unfamiliar pairs and differentiated social contexts more sharply. Males were more responsive to context than females. Distance between mates was less and physical contact was more frequent in the presence of male,female pairs or a single male, than in the presence of a single female or an empty cage. These findings suggest that the presence and sex of strangers have a stronger influence on male,female interactions when the pair has an existing relationship. [source]


Understanding the experience of drop-out from treatment for anorexia nervosa

EUROPEAN EATING DISORDERS REVIEW, Issue 2 2003
Alison Eivors
Abstract Research suggests that approximately 50 per cent of patients drop out prematurely from services for anorexia nervosa. This research set out to investigate the possible reasons for this high drop-out rate. The experiences of eight women were explored through written accounts and semi-structured interviews. The information was analysed using a social constructionist revision of grounded theory. A central theme of control emerged which was affected by interactions with the wider social system. The cumulative battle for control between the anorectic and others appeared to result in the act of dropping out as the treatment approach, timing and context recreated the setting conditions of lost control. The organizational and clinical implications of this model are discussed. Copyright © 2002 John Wiley & Sons, Ltd and Eating Disorders Association. [source]


SOCIALITY IN THERIDIID SPIDERS: REPEATED ORIGINS OF AN EVOLUTIONARY DEAD END

EVOLUTION, Issue 11 2006
Ingi Agnarsson
Abstract Evolutionary ,dead ends' result from traits that are selectively advantageous in the short term but ultimately result in lowered diversification rates of lineages. In spiders, 23 species scattered across eight families share a social system in which individuals live in colonies and cooperate in nest maintenance, prey capture, and brood care. Most of these species are inbred and have highly female-biased sex ratios. Here we show that in Theridiidae this social system originated eight to nine times independently among 11 to 12 species for a remarkable 18 to 19 origins across spiders. In Theridiidae, the origins cluster significantly in one clade marked by a possible preadaptation: extended maternal care. In most derivations, sociality is limited to isolated species: social species are sister to social species only thrice. To examine whether sociality in spiders represents an evolutionary dead end, we develop a test that compares the observed phylogenetic isolation of social species to the simulated evolution of social and non-social clades under equal diversification rates, and find that sociality in Theridiidae is significantly isolated. Because social clades are not in general smaller than their nonsocial sister clades, the spindly phylogenetic pattern,many tiny replicate social clades,may be explained by extinction rapid enough that a nonsocial sister group does not have time to diversify while the social lineage remains extant. In this case, this repeated origin and extinction of sociality suggests a conflict between the short-term benefits and long-term costs of inbred sociality. Although benefits of group living may initially outweigh costs of inbreeding (hence the replicate origins), in the long run the subdivision of the populations in relatively small and highly inbred colony lineages may result in higher extinction, thus an evolutionary dead end. [source]


Early hominid hunting and scavenging: A zooarcheological review

EVOLUTIONARY ANTHROPOLOGY, Issue 6 2003
Manuel Domínguez-Rodrigo
Abstract Before the early 1980s, the prevailing orthodoxy in paleoanthropology considered Early Stone Age archeological sites in East Africa to represent a primitive form of hominid campsites. The faunal evidence preserved in these sites was viewed as the refuse of carcass meals provided by hominid males in a social system presumptively characterized by sexual division of labor. This interpretation of early hominid life ways, commonly known as the "Home Base" or "Food Sharing" model, was developed most fully by Glynn Isaac.1,4 As Bunn and Stanford5 emphasized, this model was greatly influenced by a paradigm that coalesced between 1966 and 1968, referred to as "Man the Hunter."6 [source]


Kafka, Critical Theory, Dialectical Theology: Adorno's Case against Hans-Joachim Schoeps

GERMAN LIFE AND LETTERS, Issue 2 2010
Margarete Kohlenbach
ABSTRACT Theodor Adorno derived from his reading of Kafka some of the central assumptions that inform the critical theory of the Frankfurt School. He opposed theological Kafka interpretations in general, and in particular rejected Hans-Joachim Schoeps's reading of Kafka in the context of Karl Barth's dialectical theology. Adorno and Schoeps thus came to exemplify the dichotomy with which we still characterise the early reception of Kafka's work as either secular (sociological or political) or theological and religious. The disintegration of religion as a comprehensive social system in twentieth-century Germany means that writers can agree with traditional theology and religion in some regards while opposing them in others. This article argues that any unqualified adoption of the dichotomy between the secular and the religious is detrimental to our understanding of both Kafka's work and its early reception. First, the article outlines some of the major discrepancies in Kafka's heterogeneous engagements with religion. Second, it places Adorno's rejection of Schoeps's interpretation in the political context of National Socialism and the Holocaust. Finally, it compares Adorno's notion of ,inverse theology' with Schoeps's inversion of salvation history. Throughout, the article aims to ascertain the differences as well as the underlying commonalities between Adorno's and Schoeps's Kafka reception. Wesentliche Richtlinien der Kritischen Theorie der Frankfurter Schule verdanken sich der Kafka-Rezeption Adornos, die theologische Deutungen Kafkas im allgemeinen abweist und insbesondere Hans-Joachim Schoeps' Verständnis von Kafkas Werk im Kontext der Dialektischen Theologie Karl Barths verwirft. Adorno und Schoeps repräsentieren die Pole einer Dichotomie, mit der noch heute die Beiträge der frühen Kafka-Rezeption entweder als soziologisch und politisch oder als theologisch und religiös klassifiziert werden. Die Desintegration religiösen Lebens in der deutschen Gesellschaft des 20. Jahrhunderts bringt es mit sich, dass Schriftsteller in jeweils bestimmten Hinsichten traditionelle Theologie und Religion verwerfen,und,übernehmen können. Der vorliegende Beitrag argumentiert, dass jede nicht-spezifizierte Vorstellung einer Dichotomie von religiösem und weltlichem Leben und Denken aufgegeben werden muss, wenn wir Kafkas Werk und seine frühe Rezeption verstehen wollen. Der Beitrag skizziert zunächst zentrale Diskrepanzen in Kafkas heterogenen Bezugnahmen auf Religiöses. Im Anschluss stellt er Adornos Schoeps-Kritik in den politischen Kontext von Nationalsozialismus und Holocaust. Wie der Beitrag als ganzer soll der abschließende Vergleich der Begiffe ,inverse Theologie' (Adorno) und ,Unheilsgeschichte' (Schoeps) ein angemessenes Verständnis der Unterschiede und Gemeinsamkeiten in der Kafka-Deutung der beiden Autoren ermöglichen. [source]


When Gods Become Visible

GERMAN RESEARCH, Issue 3 2003
Ulrich Demmer PD Dr.
The Jenu Kurumba are hunters and gatherers. Their tribal rituals reveal surprising aspects of the social system of this Indian community [source]


Verbal and visual representations in task redesign: how different viewpoints enter into information systems design discussions

INFORMATION SYSTEMS JOURNAL, Issue 3 2005
Jarmo Sarkkinen
Abstract., We explore an important phase of information systems design (ISD), namely task redesign, and especially how different viewpoints enter into the discussions. We study how one particular visual representation, a process diagram, is interpreted and how alternative, even competing, representations are produced verbally. To tie the visual and verbal representations and the representational practices to wider social practices, we develop and use the Extended Three-dimensional Model of discourse. Visual representations emerged as focal in bringing in the different viewpoints and as reference points for discussions. Our model provided a focused and powerful means to unveil for the outside researchers how the planned changes in tasks and authority relationships instigated a social struggle. The IS designer was an outsider to the client organization and therefore considered only the information system, not the social system in which it was intended to operate. Other participants did not recognize this, therefore, seeing the designer as furthering managerial interests. Seeing task redesign in the social context of a client organization can help IS designers and researchers to understand what the users see naturally, that is, the ISD as a dynamic, enabling but socially constrained process where different viewpoints are represented. [source]


A brief review of the status, distribution and biology of wild Asian elephants Elephas maximus

INTERNATIONAL ZOO YEARBOOK, Issue 1 2006
R. SUKUMAR
The Asian elephant Elephas maximus is distributed discontinuously across the Asian continent. The total wild population is 38 500-52 500, with a further c. 16 000 in captivity, the majority of which are in range countries. India has 60% of the global population of wild Asian elephants. The species has a multi-tiered social system with ,, living in matriarchal groups of five to 20 individuals that interact with other family units in the area. Adult ,, live alone or in small, temporary groups with weak social bonds. Asian elephants are megaherbivores that spend 12-18 hours per day feeding, and they eat browse and plants depending on availability and season. Home-range size is dependant on the availability of food, water and shelter in the region. Loss and fragmentation of habitat, human-elephant conflicts and poaching are the greatest threats to the species. Asian elephants are managed using traditional and modern methods but progress still needs to be made to improve welfare, training and breeding for these animals. [source]


Developing interdisciplinary maternity services policy in Canada.

JOURNAL OF EVALUATION IN CLINICAL PRACTICE, Issue 1 2010
Evaluation of a consensus workshop
Abstract Context, Four maternity/obstetrical care organizations, representing women, midwives, obstetricians and family doctors conducted interdisciplinary policy research under auspices of four key stakeholder groups. These projects teams and key stakeholders subsequently collaborated to develop consensus on strategies for improved maternity services in Ontario. Objectives, The objective of this study is to evaluate a 2-day research synthesis and consensus building conference to answer policy questions in relation to new models of interdisciplinary maternity care organizations in different settings in Ontario. Methods, The evaluation consisted of a scan of individual project activities and findings as were presented to an invited audience of key stakeholders at the consensus conference. This involved: participant observation with key informant consultation; a survey of attendees; pattern processing and sense making of project materials, consensus statements derived at the conference in the light of participant observation and survey material as pertaining to a complex system. The development of a systems framework for maternity care policy in Ontario was based on secondary analysis of the material. Findings, Conference participants were united on the importance of investment in maternity care for Ontario and the impending workforce crisis if adaptation of the workforce did not take place. The conference participants proposed reforming the current system that was seen as too rigid and inflexible in relation to the constraints of legislation, provider scope of practice and remuneration issues. However, not one model of interdisciplinary maternity/obstetrical care was endorsed. Consistency and coherence of models (rather than central standardization) through self-organization based on local needs was strongly endorsed. An understanding of primary maternity care models as subsystems of networked providers in complex health organizations and a wider social system emerged. The patterns identified were incorporated into a complexity framework to assist sense making to inform policy. Discussion, Coherence around core values, holism and synthesis with responsiveness to local needs and key stakeholders were themes that emerged consistent with complex adaptive systems principles. Respecting historical provider relationships and local history provided a background for change recognizing that systems evolve in part from where they have been. The building of functioning relationships was central through education and improved communication with ongoing feedback loops (positive and negative). Information systems and a flexible improved central and local organization of maternity services was endorsed. Education and improved communication through ongoing feedback loops (positive and negative) were central to building functioning relationships. Also, coordinated central organization with a flexible and adaptive local organization of maternity services was endorsed by participants. Conclusions, This evaluation used an approach comprising scoping, pattern processing and sense making. While the projects produced considerable typical research evidence, the key policy questions could not be addressed by this alone, and a process of synthesis and consensus building with stakeholder engagement was applied. An adaptive system with local needs driving a relationship based network of interdisciplinary groupings or teams with both bottom up and central leadership. A complexity framework enhanced sense making for the system approaches and understandings that emerged. [source]


Evaluating complex public health interventions: theory, methods and scope of realist enquiry

JOURNAL OF EVALUATION IN CLINICAL PRACTICE, Issue 6 2007
James B. Connelly MD MSc FFPH
Abstract The standard models used in the study of complex public health interventions are inadequate. They adopt a simple empiricist theoretical foundation and attempt to graft onto an essentially open social system a contrived laboratory experimentation typically in the form of a randomized, controlled trial. By understanding the ontological and epistemological claims of critical realism, it is possible to transcend the methodological inadequacy of the standard model approach. Critical realism posits a substantive causal theory, an end to fact-value dualism, and a coherent and emancipatory model of social action; all of these features amount to a systematic and compelling account of public health practice and a coherent approach to evaluation of complex public health interventions. [source]


Professional Development of Nursing in Saudi Arabia

JOURNAL OF NURSING SCHOLARSHIP, Issue 3 2001
Gail Tumulty
Purpose: To describe the development of nursing in Saudi Arabia and to recommend further directions for development of professional nursing in that country. Organizing Construct: A comprehensive needs assessment was performed in 1996 by an onsite consultant to: (a) evaluate the existing nursing system at the ministry, regional, and hospital levels, (b) describe the functional interrelationships of a nursing division within the Ministry of Health, and (c) prepare a work plan outlining the program elements that a nursing division could address to foster high-quality health care in the public sector. Methods: The needs assessment was conducted through direct observation, interviews, and review of existing documents in the Ministry of Health and representative hospitals, health centers, and health institutes. Data were collected about six factors as they pertained to the Ministry of Health Nursing Services: (a) key organizational and managerial activities, (b) the external environment, (c) the social system, (d) employees, (e) nursing services and research, and (f) formal organizational arrangements. Findings and Conclusions: The data showed a young country and an equally young nursing profession struggling to meet the needs of a growing population. The highest priority for the advancement of nursing in Saudi Arabia is the creation of a kingdom-wide system of nurse regulation. Pressing needs include regulation of professional standards, licensure of all nurses practicing in the Kingdom, accreditation of educational programs, and formation of a national nurses association. [source]


The Effectiveness of Distributive Policy in a Competitive Economy

JOURNAL OF PUBLIC ECONOMIC THEORY, Issue 1 2000
Jean Mercier Ythier
I consider an abstract social system made of individual owners endowed with nonpaternalistic interdependent preferences, who interact by means of individual gifts and by exchanges on competitive markets. The existence of equilibrium is established. I identify the set of allocations that are decentralizable in the sense that they are general equilibria for some vectors of market prices and initial endowments. This set is characterized in a simple way from the social endowment and individual market and distributive preferences. Decentralizable allocations are all accessible to distributive policy, unless public transfers are confined to some neighborhood of 0. In the latter case, distributive policy remains free to perform local redistributions of wealth across the components of the graph of equilibrium gifts. [source]


The role of information in a community of hobbyist collectors

JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 3 2009
Charlotte P. Lee
This article marries the study of serious leisure pursuits with library and information science's (LIS) interest in people's everyday use, need, seeking, and sharing of information. Using a qualitative approach, the role of information as a phenomenon was examined in relation to the leisure activity of hobbyist collecting. In the process, a model and a typology for these collectors were developed. We find that the information needs and information seeking of hobbyist collectors is best represented as an interrelationship between information and object needs, information sources, and interactions between collectors and their publics. Our model of the role of information in a particular domain of hobbyist collecting moves away from the idea of one individual seeking information from formal systems and shifts towards a model that takes seriously the social milieu of a community. This collecting community represents a layer of a social system with complex interactions and specialized information needs that vary across collector types. Only the serious collectors habitually engage in information seeking and, occasionally, in information dissemination, in the traditional sense, yet information flows through the community and serves as a critical resource for sustaining individual and communal collecting activities. [source]


Dynamic social system in Nubian ibex: can a second mating season develop in response to arid climate?

JOURNAL OF ZOOLOGY, Issue 3 2008
A. Massolo
Abstract We studied a population of Nubian ibex Capra ibex nubiana in the eastern extreme of its range, the hyper-arid central desert of the Sultanate of Oman. Long-term data were collected from January 1983 to December 1997 by direct observation, as well as VHF telemetry on 12 animals (eight from 1987 to 1990; four from 1994 to 1996). We recorded 884 sightings: 40.4% of single animals and 59.6% of groups. Although no significant monthly variation of group size (Jarman's Typical Group Size) was found, there were distinct peaks in March (4.0 ind. group,1) and September (5.1 ind. group,1). Groups of males and females formed especially in March and November, and female,kid groups in February and July,August. Our data may suggest two mating periods: the first one in autumn (similar to the rut of ibex in temperate mountain areas), with kids born in spring/early summer, after winter,spring rainfall, and the second one in spring, with kids born in late summer/autumn, before winter,spring rainfalls. We suggest that the second rutting period may have evolved as a micro-evolutionary process, with the local population adapting to hyper-arid environment constraints. The spring mating season may favour only females in prime conditions, who can afford a pregnancy in the local severe summers and will deliver kids when plant greening begins, in the autumn, whereas the autumn (original) mating season may be afforded by any female, but kids will be born in an unfavourable period, before the summer drought. [source]


Reproductive success and helper effects in the cooperatively breeding grey-crowned babbler

JOURNAL OF ZOOLOGY, Issue 3 2007
C. J. Blackmore
Abstract Cooperative breeding, where some individuals help to raise offspring that are not their own, is a relatively rare social system in birds. We studied the breeding biology of a declining cooperative breeder, the grey-crowned babbler Pomatostomus temporalis, with the aim of isolating the social factors that affect its reproductive success. Most breeding pairs were assisted by philopatric offspring, although pairs could breed successfully without helpers. Females laid up to four clutches (usually three eggs per clutch) per season. Male (but not female) helpers increased the number of young fledged from individual nests and the likelihood of re-nesting, resulting in higher seasonal fledgling production. Helper effects on brood size and fledgling production were greater in the second year of the study, which was also characterized by higher nest failure. This suggests that helpers enhance reproduction more in poor conditions. Our study demonstrates the interacting effects of social and ecological factors on reproductive success, and that retention of offspring is not always beneficial for the breeders in cooperative species. [source]


A Social Psychological Approach to Enduring Rivalries

POLITICAL PSYCHOLOGY, Issue 4 2001
Cameron G. Thies
The recent scholarly work on the concept of enduring rivalries offers a promising way to examine strategic interaction among dyads of states over extended periods of time. A focus on rivalry, and on the mechanisms that provide for such interaction, may offer a way to bridge existing theories of international relations that rely exclusively on structure or process. Unfortunately, the potential for theory-building has not been fully realized because research into rivalry has tended to be inductive. This paper seeks to rectify that problem by situating the rivalry concept within a social psychological approach to international relations. The rivalry concept is appropriately located in a theoretical approach that views the international system as a social system where actors are conditioned by mechanisms of competition and socialization. [source]


A Bayesian analysis of the temporal change of local density of proboscis monkeys: Implications for environmental effects on a multilevel society

AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 2 2010
Ikki Matsuda
Abstract To understand the effects of environmental factors on a social system with multilevel society in proboscis monkey units, the temporal change of the local density of sleeping sites of monkeys was investigated along the Menanggul river from May 2005 to 2006 in Malaysia. Proboscis monkeys typically return to riverside trees for night sleeping. The sleeping site locations of a one-male unit (BE-unit) were recorded and the locations of other one-male and all-male units within 500 m of the BE-unit were verified. In addition, environmental factors (food availability, the water level of the river, and the river width) and copulation frequency of BE-unit were recorded. From the analyses of the distance from the BE-unit to the nearest neighbor unit, no spatial clumping of the sleeping sites of monkey units on a smaller scale was detected. The results of a Bayesian analysis suggest that the conditional local density around the BE-unit can be predicted by the spatial heterogeneity along the river and by the temporal change of food availability, that is, the local density of monkey units might increase due to better sleeping sites with regard to predator attacks and clumped food sources; proboscis monkeys might not exhibit high-level social organization previously reported. In addition, this study shows the importance of data analysis that considers the effects of temporal autocorrelation, because the daily measurements of longitudinal data on monkeys are not independent of each other. Am J Phys Anthropol, 2010. © 2010 Wiley-Liss, Inc. [source]


Plant foods consumed by Pan: Exploring the variation of nutritional ecology across Africa

AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 3 2010
Gottfried Hohmann
Abstract It has been shown that differences in resource density and nutrient supply affect variation in ranging patterns, habitat use, and sociality. Among nonhuman primates, chimpanzees (Pan troglodytes) and bonobos (P. paniscus) have often been used as models for the link between social system and habitat ecology. Field reports suggest that resource density is higher in habitats occupied by bonobos (compared to chimpanzee habitats), and in the West (compared to the East) of the range of chimpanzees. In this study we compared diet quality at the level of species and populations using information from nutritional analyses of fruit and leaves consumed by chimpanzees (three) and bonobos (one population). Quality of plant foods was assessed on the basis of a) the concentration of macronutrients, fiber, and anti-feedants, and b) associations of different nutrient components. Overall plant samples collected at each site differed in terms of macronutrient content. However, nutritious quality and gross energy content of food samples were similar suggesting that dietary quality reflects selectivity rather than habitat ecology. The quality of plant foods consumed by bonobos was within the range of chimpanzees and the quality of plant foods consumed by western chimpanzees was not higher than that of eastern chimpanzees. While the results showed significant variation across forests inhabited by Pan, they did not match with geographical patterns between and within Pan species as proposed in previous studies. This suggests that the nutritional quality of the habitat is not always a reliable predictor of the quality of the diet. Am J Phys Anthropol 2010. © 2009 Wiley-Liss, Inc. [source]


Mitochondrial DNA variability among eight Tikúna villages: Evidence for an intratribal genetic heterogeneity pattern

AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 3 2009
Celso Teixeira Mendes-Junior
Abstract To study the genetic structure of the Tikúna tribe, four major Native American mitochondrial DNA (mtDNA) founder haplogroups were analyzed in 187 Amerindians from eight Tikúna villages located in the Brazilian Amazon. The central position of these villages in the continent makes them relevant for attempts to reconstruct population movements in South America. In this geographic region, there is particular concern regarding the genetic structure of the Tikúna tribe, formerly designated "enigmatic" due to its remarkable degree of intratribal homogeneity and the scarcity of private protein variants. In spite of its large population size and geographic distribution, the Tikúna tribe presents marked genetic and linguistic isolation. All individuals presented indigenous mtDNA haplogroups. An intratribal genetic heterogeneity pattern characterized by two highly homogeneous Tikúna groups that differ considerably from each other was observed. Such a finding was unexpected, since the Tikúna tribe is characterized by a social system that favors intratribal exogamy and patrilocality that would lead to a higher female migration rate and homogenization of the mtDNA gene pool. Demographic explosions and religious events, which significantly changed the sizes and compositions of many Tikúna villages, may be reflected in the genetic results presented here. Am J Phys Anthropol 2009. © 2009 Wiley-Liss, Inc. [source]


The second modern condition?

THE BRITISH JOURNAL OF SOCIOLOGY, Issue 3 2010
Compressed modernity as internalized reflexive cosmopolitization
Abstract Compressed modernity is a civilizational condition in which economic, political, social and/or cultural changes occur in an extremely condensed manner in respect to both time and space, and in which the dynamic coexistence of mutually disparate historical and social elements leads to the construction and reconstruction of a highly complex and fluid social system. During what Beck considers the second modern stage of humanity, every society reflexively internalizes cosmopolitanized risks. Societies (or their civilizational conditions) are thereby being internalized into each other, making compressed modernity a universal feature of contemporary societies. This paper theoretically discusses compressed modernity as nationally ramified from reflexive cosmopolitization, and, then, comparatively illustrates varying instances of compressed modernity in advanced capitalist societies, un(der)developed capitalist societies, and system transition societies. In lieu of a conclusion, I point out the declining status of national societies as the dominant unit of (compressed) modernity and the interactive acceleration of compressed modernity among different levels of human life ranging from individuals to the global community. [source]


Sex differences in the vocal repertoire of adult red-capped mangabeys (Cercocebus torquatus): a multi-level acoustic analysis

AMERICAN JOURNAL OF PRIMATOLOGY, Issue 4 2010
Hélène Bouchet
Abstract Sex differences in the vocal behavior of nonhuman primates can take various forms: sex-specific call types, differential production of shared call types, or sex discrepancy in phonation. Also, a growing literature is evidencing that systematically analyzing the vocal repertoires of primates at the call level might lead to underestimating their communicative abilities. Here, we present an extensive multi-level analysis of the still unknown vocal repertoire of adult red-capped mangabeys (Cercocebus torquatus), with a special emphasis on sex differences. We collected recordings from seven adult males and seven adult females housed in captivity. We present a structurally-based classification of mangabey calls that we cross-validated by an analysis of the associated contexts of emission. We found 12 sound units (including six sex-specific) that were concatenated to form eight call types (including four sex-specific), which were produced either singularly or in sequences composed of one ("repetition") or several ("combination") call types. We extracted organizational principles that ruled call composition and calling patterns. This revealed a high degree of potentially meaningful variability in terms of semantics and syntax. Male,female discrepancy in terms of phonation could be related to morphological dimorphism and would enable listeners to behave appropriately according to the sex of the caller. Sex differences in repertoire size, structural gradation, and call usage could reflect specificities of male,female social roles. We discuss the pertinence of these sex differences according to social system and habitat quality. Am. J. Primatol. 72:360,375, 2010. © 2010 Wiley-Liss, Inc. [source]


Male and female range use in a group of white-bellied spider monkeys (Ateles belzebuth) in Yasuní National Park, Ecuador

AMERICAN JOURNAL OF PRIMATOLOGY, Issue 2 2010
Stephanie N. Spehar
Abstract Spider monkeys (Ateles sp.) live in a flexible fission,fusion social system in which members of a social group are not in constant association, but instead form smaller subgroups of varying size and composition. Patterns of range use in spider monkeys have been described as sex-segregated, with males and females often ranging separately, females utilizing core areas that encompass only a fraction of the entire community range, and males using much larger portions of the community range that overlap considerably with the core areas of females and other males. Males are also reported to use the boundary areas of community home ranges more often than females. Spider monkeys thus seem to parallel the "male-bonded" patterns of ranging and association found among some groups of chimpanzees. Over several years of research on one group of spider monkeys (Ateles belzebuth) in Yasuní National Park, Ecuador, we characterized the ranging patterns of adult males and females and evaluated the extent to which they conform to previously reported patterns. In contrast to ranging patterns seen at several other spider monkey sites, the ranges of our study females overlapped considerably, with little evidence of exclusive use of particular areas by individual monkeys. Average male and female home range size was comparable, and males and females were similar in their use of boundary areas. These ranging patterns are similar to those of "bisexually bonded" groups of chimpanzees in West Africa. We suggest that the less sex-segregated ranging patterns seen in this particular group of spider monkeys may be owing to a history of human disturbance in the area and to lower genetic relatedness between males, highlighting the potential for flexibility some aspects of the spider monkeys' fission,fusion social system. Am. J. Primatol. 72:129,141, 2010. © 2009 Wiley-Liss, Inc. [source]


Social dynamics of the golden snub-nosed monkey (Rhinopithecus roxellana): female transfer and one-male unit succession

AMERICAN JOURNAL OF PRIMATOLOGY, Issue 8 2009
Xiao-Guang Qi
Abstract Among primates that form multilevel societies, understanding factors and mechanisms associated with the movement of individuals between groups, clans, and one-male social units offers important insight into primate reproductive and social strategies. In this research we present data based on an 8-year field study of a multilevel troop of Sichuan snub-nosed monkeys (Rhinopithecus roxellana) in the Qinling Mountains of China. Our study troop contained 78,126 individuals, and was usually organized into 6,8 one-male units (OMU). The majority of OMUs were composed of networks of unrelated females and their offspring. We found that 59.7% (43/72) of subadult and adult females in our study troop transferred between OMUs (n=66) or disappeared (n=7) from the troop. In the majority of cases, two or more females transferred together into new OMUs or troops. In R. roxellana, new OMUs formed in several ways. During 2001,2008, 16 adult males appeared in the study troop. Over this period, we observed 13 different males who became harem leaders either by taking over an existing harem or by attracting females from other OMUs into their harem. We also observed four OMUs from a neighboring troop to successfully immigrate into the study troop. The number of individuals in these newly immigrated OMUs was significantly smaller than that number of individuals in resident OMUs. During harem formation, fighting between adult males was rarely observed, and female mate choice appeared to play a crucial role in harem male recruitment and replacement. These results suggest that golden snub-nosed monkeys are organized in a nonmatrilineal social system. Female mate choice and possibly incest avoidance appear to play important roles in female transfer, male tenure, and OMU stability. Am. J. Primatol. 71:670,679, 2009. © 2009 Wiley-Liss, Inc. [source]


Simulation of the population dynamics and social structure of the Virunga mountain gorillas

AMERICAN JOURNAL OF PRIMATOLOGY, Issue 4 2004
Martha M. Robbins
Abstract An agent-based model was developed to simulate the growth rate, age structure, and social system of the endangered mountain gorillas (Gorilla beringei beringei) in the Virunga Volcanoes region. The model was used to compare two types of data: 1) estimates of the overall population size, age structure, and social structure, as measured by six censuses of the entire region that were conducted in 1971,2000; and 2) information about birth rates, mortality rates, dispersal patterns, and other life history events, as measured from three to five habituated research groups since 1967. On the basis of the research-group data, the "base simulation" predicted a higher growth rate than that observed from the census data (3% vs. 1%). This was as expected, because the research groups have indeed grown faster than the overall population. Additional simulations suggested that the research groups primarily have a lower mortality rate, rather than higher birth rates, compared to the overall population. Predictions from the base simulation generally fell within the range of census values for the average group size, the percentage of multimale groups, and the distribution of females among groups. However, other discrepancies predicted from the research-group data were a higher percentage of adult males than observed, an overestimation of the number of multimale groups with more than two silverbacks, and an overestimated number of groups with only two or three members. Possible causes for such discrepancies include inaccuracies in the census techniques used, and/or limitations with the long-term demographic data set obtained from only a few research groups of a long-lived species. In particular, estimates of mortality and male dispersal obtained from the research groups may not be representative of the entire population. Our final simulation addressed these discrepancies, and provided a better basis for further studies on the complex relationships among individual life history events, group composition, population age structure, and growth rate patterns. Am. J. Primatol. 63:201,223, 2004. © 2004 Wiley-Liss, Inc. [source]


Politicizing Aboriginal Cultural Tourism: The Discourse of Primitivism in the Tourist Encounter,

CANADIAN REVIEW OF SOCIOLOGY/REVUE CANADIENNE DE SOCIOLOGIE, Issue 1 2003
SIEGRID DEUTSCHLANDER
Le tourisme cultural amérindien est un secteur de L'industrie touristique canadienne potentiellement en forte croissance, qui connaît un vif succès auprès des visiteurs européens, surtout les Allemands. Le présent article recourt à L'analyse du discours pour examiner les rencontres touristiques qui se déroulent dans les différents lieux touristiques amérindiens du sud de L'Alberta. Il analyse la construction de L'«indianite» et de la culture amérindienne par les guides amérindiens et les visiteurs étrangers. Il appert que ces constructions sont façonnées par le discours primitiviste qui, ironiquement, renforce la notion de «noble sauvage» héritée des Lumières. Nous discutons L'idée selon laquelle le discours primitiviste, malgré ses aspects colonialistes et essentialistes, peut représenter une stratégie de résistance envers un système social perçu comme une source d'oppression par plusieurs Premières Nations. Aboriginal cultural tourism is a potentially high-growth segment of the Canadian tourism industry that is currently enjoying widespread demand among Europeans, especially German visitors. This paper uses a discourse analysis approach to examine the tourist encounter at various Aboriginal tourist sites in southern Alberta. It analyses the negotiation of "Indianness" and Indian culture by both Native interpreters and foreign visitors. These negotiations are shown to be informed by the primitivist discourse that, ironically, reinforces the Enlightenment notion of the "noble savage." We argue that, despite its colonialist and essentialist aspects, the primitivist discourse can nevertheless function as a strategy of resistance to a social system viewed by many First Nations as politically oppressive. [source]


The development of a geospatial data Grid by integrating OGC Web services with Globus-based Grid technology

CONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 14 2008
Liping Di
Abstract Geospatial science is the science and art of acquiring, archiving, manipulating, analyzing, communicating, modeling with, and utilizing spatially explicit data for understanding physical, chemical, biological, and social systems on the Earth's surface or near the surface. In order to share distributed geospatial resources and facilitate the interoperability, the Open Geospatial Consortium (OGC), an industry,government,academia consortium, has developed a set of widely accepted Web-based interoperability standards and protocols. Grid is the technology enabling resource sharing and coordinated problem solving in dynamic, multi-institutional virtual organizations. Geospatial Grid is an extension and application of Grid technology in the geospatial discipline. This paper discusses problems associated with directly using Globus-based Grid technology in the geospatial disciplines, the needs for geospatial Grids, and the features of geospatial Grids. Then, the paper presents a research project that develops and deploys a geospatial Grid through integrating Web-based geospatial interoperability standards and technology developed by OGC with Globus-based Grid technology. The geospatial Grid technology developed by this project makes the interoperable, personalized, on-demand data access and services a reality at large geospatial data archives. Such a technology can significantly reduce problems associated with archiving, manipulating, analyzing, and utilizing large volumes of geospatial data at distributed locations. Copyright © 2008 John Wiley & Sons, Ltd. [source]