Regulation of Population Density Due to Individual Differences and Patchy Environment

In a patchy environment, sheep may have to make trade-offs between being close to companions and grazing the preferred vegetation. It has been demonstrated that individual differences in sociability, measured as the tendency to graze close to others in a group, can predict behaviour in a motivational conflict situation (Sibbald et al, 2000). An experiment was carried out, in which sheep with different sociability indices were compared in a test situation which required single animals to move away from the group in order to graze, but where stress due to physical separation was minimised.

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CROWDING AND BEHAVIOR IN JAPANESE PUBLIC SPACES: SOME OBSERVATIONS AND SPECULATIONS

Social Behavior and Personality An International Journal ◽

10.2224/sbp.1992.20.1.57 ◽

1992 ◽

Vol 20 (1) ◽

pp. 57-70 ◽

Cited By ~ 6

Author(s):

Osamu Iwata

Keyword(s):

Individual Differences ◽

Population Density ◽

Personal Characteristics ◽

Public Spaces ◽

High Population Density ◽

The Third ◽

Crowding Stress ◽

High Crime ◽

And Behavior ◽

High Crime Rate

First, the connotations in Japan of crowded situations were discussed. In the second section, some personal characteristics of those who might experience crowding, and of partners who might share a space with the former, were discussed as determinants of individual differences in the experience of crowding. In the third section, it was suggested that high collectivism, a non-contact culture, and high population density combined with a high crime rate might encourage the experience of crowding in public or semi-public spaces. In the last section, various structural or physical devices widely observed in Japan, which were assumed to be effective in inhibiting the experience of crowding or reducing crowding stress by maintaining isolation, were discussed.

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Reproduction and survival in Melanoplus sanguinipes (Orthoptera: Acrididae) in response to resource availability and population density: the role of exploitative competition

The Canadian Entomologist ◽

10.4039/n02-061 ◽

2003 ◽

Vol 135 (3) ◽

pp. 415-426 ◽

Cited By ~ 25

Author(s):

David H. Branson

Keyword(s):

Individual Differences ◽

Population Density ◽

Resource Availability ◽

Egg Production ◽

Resource Competition ◽

Reproductive Allocation ◽

Exploitative Competition ◽

Melanoplus Sanguinipes ◽

Per Capita ◽

Competition For Resources

AbstractThe relative importance of exploitative competition for resources on grasshopper reproductive allocation has not been fully examined. Given the large fluctuations in grasshopper densities that periodically occur in western North America, an increased understanding of how grasshopper survival and reproduction vary in response to intraspecific densities and per capita resource availability is important. I examined if exploitative resource competition could explain variation in reproductive allocation in Melanoplus sanguinipes (Fabricius) in response to resource availability and grasshopper population density. I also examined whether individual differences in competitive ability resulted in increased variance in egg production with low per capita resource availability. As expected with exploitative resource competition, per capita resource availability explained a significant amount of the variation in all reproductive characteristics examined. There was no effect of per capita resource availability on survival. Residuals of the regressions of egg production and vitellogenesis versus per capita resource availability did not differ for resource or density treatments, indicating that exploitative competition for resources played a more important role than interference competition in determining reproductive allocation in M. sanguinipes. Individual differences were evident, as variation around the mean of egg production increased with resource limitation. Exploitative competition for resources was important in determining both individual and population-level reproductive responses of grasshoppers to resource availability.

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The challenge of accounting for individual differences in folk-economic beliefs

Behavioral and Brain Sciences ◽

10.1017/s0140525x18000523 ◽

2018 ◽

Vol 41 ◽

Cited By ~ 1

Author(s):

Benjamin C. Ruisch ◽

Rajen A. Anderson ◽

David A. Pizarro

Keyword(s):

Individual Differences ◽

Individual Variation ◽

Political Ideologies ◽

Economic Beliefs ◽

Existing Data

AbstractWe argue that existing data on folk-economic beliefs (FEBs) present challenges to Boyer & Petersen's model. Specifically, the widespread individual variation in endorsement of FEBs casts doubt on the claim that humans are evolutionarily predisposed towards particular economic beliefs. Additionally, the authors' model cannot account for the systematic covariance between certain FEBs, such as those observed in distinct political ideologies.

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Individual differences, social attention, and the history of the social motivation hypotheses of autism

Behavioral and Brain Sciences ◽

10.1017/s0140525x18002509 ◽

2019 ◽

Vol 42 ◽

Author(s):

Peter C. Mundy

Keyword(s):

Individual Differences ◽

Early Development ◽

Emotional Development ◽

Social Motivation ◽

Social Attention ◽

Social Emotional Development ◽

Social Emotional ◽

Precise Understanding ◽

The Social ◽

History Of

Abstract The stereotype of people with autism as unresponsive or uninterested in other people was prominent in the 1980s. However, this view of autism has steadily given way to recognition of important individual differences in the social-emotional development of affected people and a more precise understanding of the possible role social motivation has in their early development.

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Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

Behavioral and Brain Sciences ◽

10.1017/s0140525x18000274 ◽

2018 ◽

Vol 41 ◽

Author(s):

Kevin Arceneaux

Keyword(s):

Decision Making ◽

Individual Differences ◽

Cognitive Processes ◽

Evolutionary History ◽

Behavioral Responses ◽

History Of ◽

Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

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Inter-individual variation shapes the human microbiome

Behavioral and Brain Sciences ◽

10.1017/s0140525x1800287x ◽

2019 ◽

Vol 42 ◽

Author(s):

Emily F. Wissel ◽

Leigh K. Smith

Keyword(s):

Individual Differences ◽

Individual Variation ◽

Human Microbiome ◽

Individual Variability ◽

Microbiota Composition ◽

Target Article ◽

Microbiome Research

Abstract The target article suggests inter-individual variability is a weakness of microbiota-gut-brain (MGB) research, but we discuss why it is actually a strength. We comment on how accounting for individual differences can help researchers systematically understand the observed variance in microbiota composition, interpret null findings, and potentially improve the efficacy of therapeutic treatments in future clinical microbiome research.

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Why Speech-Language Clinicians Should Be in the Classroom

Language Speech and Hearing Services in Schools ◽

10.1044/0161-1461.2204.277 ◽

1991 ◽

Vol 22 (4) ◽

pp. 277-277 ◽

Cited By ~ 3

Author(s):

Sharon L. Wadle

Keyword(s):

Individual Differences ◽

Task Analysis ◽

Regular Classroom ◽

Classroom Setting ◽

Therapy Room

Lack of training is only an excuse for not collaborating outside of the therapy room. With our present training, speech-language clinicians have many skills to share in the regular classroom setting. This training has provided skills in task analysis, a language focus, an appreciation and awareness of individual differences in learning, and motivational techniques.

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Group Experiences and Individual Differences in Stuttering

Journal of Speech Language and Hearing Research ◽

10.1044/2019_jslhr-19-00138 ◽

2019 ◽

Vol 62 (12) ◽

pp. 4335-4350 ◽

Cited By ~ 6

Author(s):

Seth E. Tichenor ◽

J. Scott Yaruss

Keyword(s):

Individual Differences ◽

Support Groups ◽

Support Group ◽

Affective States ◽

Life Outcomes ◽

Self Help ◽

Wide Range ◽

Group Experiences ◽

History Of ◽

Adults Who Stutter

Purpose This study explored group experiences and individual differences in the behaviors, thoughts, and feelings perceived by adults who stutter. Respondents' goals when speaking and prior participation in self-help/support groups were used to predict individual differences in reported behaviors, thoughts, and feelings. Method In this study, 502 adults who stutter completed a survey examining their behaviors, thoughts, and feelings in and around moments of stuttering. Data were analyzed to determine distributions of group and individual experiences. Results Speakers reported experiencing a wide range of both overt behaviors (e.g., repetitions) and covert behaviors (e.g., remaining silent, choosing not to speak). Having the goal of not stuttering when speaking was significantly associated with more covert behaviors and more negative cognitive and affective states, whereas a history of self-help/support group participation was significantly associated with a decreased probability of these behaviors and states. Conclusion Data from this survey suggest that participating in self-help/support groups and having a goal of communicating freely (as opposed to trying not to stutter) are associated with less negative life outcomes due to stuttering. Results further indicate that the behaviors, thoughts, and experiences most commonly reported by speakers may not be those that are most readily observed by listeners.

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