Book Review: On the Move. How and Why Animals Travel in Groups. Edited by Sue Boinski and Paul A. Garber,University of Chicago Press,Chicago, IL 2000, xii + 224 pp., US $95.00 UK £66.50 (cloth); US $35.00 UK £24.50 (paper)

International Journal of Primatology -     

The Why and How of Species

The biological species concept deals both with the meaning of the sexual species as a harmonious gene pool and with its protection against deleterious outbreeding (effected by isolating mechanisms). According to the Darwin-Muller-Mayr theory isolating mechanisms are acquired by incipient species during alloparty. Isolating mechanisms are not the result of ad hoc selection, but of a change of function of properties acquired during the preceding isolation of the incipient species. The role of behavioral properties (recognition) among the isolating mechanisms has long been recognized and described by naturalists but was rejected as basis of a species definition for a number of valid reasons.     

How Animals Play Hide and Seek: A Game of Survival

Many topics in the secondary science classroom can be difficult to introduce to students in a manner that fully engages them, especially when presented using traditional teaching methods. However, with a little innovation and an emphasis on inquiry, even dry subjects can be presented in an appealing way. The authors developed an inquiry-based exercise that teaches students about flower anatomy and dissection. During this exercise, students investigate the morphology of simple and composite flowers using digital microscopes. Dissection of a simple flower results in a count of floral parts that is used to construct a floral formula. Students use appearance of structures to suggest function of sepals, petals, anthers, pistils, and components. Investigation of composite and bilabiate flowers introduces concepts of inflorescence and symmetry and asymmetry. Following self-guided inquiry by the students, the teacher uses a digital microscope, computer, and LCD projector to lead discussion of what was observed and to help assimilate important concepts.     

Pets and Our Mental Health: The Why,the What and the How

ABSTRACT

There is growing evidence that pet ownership and human–animal interaction (HAI) have benefits for human physical and psychological well-being. However, there may be pre-existing characteristics related to patterns of pet ownership and interactions with pets that could potentially bias results of research on HAI. The present study uses a behavioral genetic design to estimate the degree to which genetic and environmental factors contribute to individual differences in frequency of play with pets among adult men. Participants were from the ongoing longitudinal Vietnam Era Twin Study of Aging (VETSA), a population-based sample of 1,237 monozygotic (MZ) and dizygotic (DZ) twins aged 51–60 years. Results demonstrate that MZ twins have higher correlations than DZ twins on frequency of pet play, suggesting that genetic factors play a role in individual differences in interactions with pets. Structural equation modeling revealed that, according to the best model, genetic factors accounted for as much as 37% of the variance in pet play, although the majority of variance (63–71%) was due to environmental factors that are unique to each twin. Shared environmental factors, which would include childhood exposure to pets, overall accounted for <10% of the variance in adult frequency of pet play, and were not statistically significant. These results suggest that the effects of childhood exposure to pets on pet ownership and interaction patterns in adulthood may be mediated primarily by genetically-influenced characteristics.     

The What,Why and How of Primate Taxonomy

Taxonomy has a well-defined role, which is much more than simply stamp-collecting and pigeon-holing. Species are the units of classification, biogeography and conservation; as such they must be defined as objectively as possible. The biological species concept, still widely used in biology, though predominantly by non-taxonomists and all too often misunderstood, is a process-based concept, which offers no criterion for the classification of allopatric populations beyond inference and hypothesis. The phylogenetic species concept—a pattern-based concept—is as nearly objective as we are likely to get. Amount of difference is not a criterion for recognizing species. It is not possible to insist on monophyly at the specific level, but it is mandatory for the higher categories (genus, family, etc.). The rank we assign to a given supraspecific category should be determined by its time depth.     

How Ethical Ideologies Relate to Public Attitudes toward Animals: The Dutch Case

Ethical ideologies, which include dimensions of idealism and relativism, are often involved in the process of decision-making regarding operational and economic research. However, the study of the role of ethical ideologies concerning public attitudes toward animals has been largely neglected. The present study analyzed how ethical ideologies and their interaction with human demographics relate to public attitudes toward animals in the Netherlands. The Ethics Position Questionnaire (EPQ) was used to assess respondents’ ethical ideologies and their relationship with attitudes toward animals, which were measured by the Animal Issue Scale (AIS) and the Animal Attitude Scale (AAS). The results demonstrated that respondents’ gender and age were both significantly associated with attitudes toward animals, although gender showed a stronger correlation than age. Absolutists and situationists tended to show greater concern for animals than did exceptionists and subjectivists. Public attitudes toward animals were found to be significantly related to idealism; this confirms previous findings in the United States and China. Consistent with some previous findings in the United States, no significant correlation between relativism and public attitudes toward animals was found among Dutch respondents. However, this finding is inconsistent with findings in China indicating that relativism was negatively related to people’s attitudes toward animals. Our study indicates that the correlation between idealism and attitudes toward animals is the same in different countries, while the correlation between relativism and attitudes toward animals differs between developed and developing countries.     

Predicting Survey Responses: How and Why Semantics Shape Survey Statistics on Organizational Behaviour

Some disciplines in the social sciences rely heavily on collecting survey responses to detect empirical relationships among variables. We explored whether these relationships were a priori predictable from the semantic properties of the survey items, using language processing algorithms which are now available as new research methods. Language processing algorithms were used to calculate the semantic similarity among all items in state-of-the-art surveys from Organisational Behaviour research. These surveys covered areas such as transformational leadership, work motivation and work outcomes. This information was used to explain and predict the response patterns from real subjects. Semantic algorithms explained 60–86% of the variance in the response patterns and allowed remarkably precise prediction of survey responses from humans, except in a personality test. Even the relationships between independent and their purported dependent variables were accurately predicted. This raises concern about the empirical nature of data collected through some surveys if results are already given a priori through the way subjects are being asked. Survey response patterns seem heavily determined by semantics. Language algorithms may suggest these prior to administering a survey. This study suggests that semantic algorithms are becoming new tools for the social sciences, opening perspectives on survey responses that prevalent psychometric theory cannot explain.