Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Species selection on organismal integration

M Björklund1

  • 1Department of Zoology, Uppsala University, Sweden.

Journal of Theoretical Biology
|December 21, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Subtle but ubiquitous selection on body size in a natural population of collared flycatchers over 33 years.

Journal of evolutionary biology·2017
Same author

Systemic differences in serum metabolome: a cross sectional comparison of women with localised and widespread pain and controls.

Scientific reports·2015
Same author

'Background' immunoglobulin production: measurement, biological significance and regulation.

Immunology today·2014
Same author

Scaling of the mean and variance of population dynamics under fluctuating regimes.

Theory in biosciences = Theorie in den Biowissenschaften·2014
Same author

The unpredictable impact of hybridization.

Journal of evolutionary biology·2013
Same author

Rapid and unpredictable changes of the G-matrix in a natural bird population over 25 years.

Journal of evolutionary biology·2012

Higher-level selection can act on population traits like organismal integration. Populations with greater genetic integration evolve faster, supporting macroevolutionary theories.

Area of Science:

  • Evolutionary biology
  • Macroevolutionary theory
  • Population genetics

Background:

  • Higher-level selection, acting on entities beyond individuals, is increasingly recognized in macroevolution.
  • Population-level traits, such as variability and organismal integration, are key candidates for higher-level selection due to their impact on population fitness.

Purpose of the Study:

  • To propose and explore the concept of interpopulational selection acting on organismal integration.
  • To investigate how organismal integration, measured by the genetic variance-covariance matrix, influences a population's adaptive response.

Main Methods:

  • Theoretical argument for interpopulational selection on genetic integration.
  • Analysis of predictions derived from the theoretical framework.

Related Experiment Videos

  • Review of empirical data from natural and laboratory populations across diverse organisms.

    • Main Results:

    • Organismal integration in morphological traits is generally high across populations.
    • Correlation matrices of within- and among-population variation often show similar orientations.
    • Morphological variation within avian genera is predominantly along a size axis.

    Conclusions:

    • The findings support the hypothesis that interpopulational selection can act on organismal integration.
    • High levels of genetic integration facilitate faster evolutionary responses to selection.
    • These results contribute to understanding macroevolutionary patterns driven by population-level processes.