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

Biological time value.

B Hannon1

  • 1Department of Geography, University of Illinois, Urbana 61801.

Mathematical Biosciences
|June 1, 1990
PubMed
Summary
This summary is machine-generated.

A new natural discount rate measure for species is proposed, quantifying their disregard for future events. This rate equals the species' standard metabolic rate, aiding in predicting ecological success and solving biological optimality problems.

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

Exploring the Utility of the Modified Hospitalized-Patient One-Year Mortality Risk Score to Trigger Referrals to Palliative Care for Inpatients With Cancer.

Cancer medicine·2024
Same author

Impact of early palliative care on caregivers of patients with advanced cancer: cluster randomised trial.

Annals of oncology : official journal of the European Society for Medical Oncology·2016
Same author

A dynamic model of colonic concentrations of delayed-release 5-aminosalicylic acid (Asacol).

Alimentary pharmacology & therapeutics·2009
Same author

Anxiety and performance in elite non-professional athletes.

Irish medical journal·2006
Same author

Encoding specificity revisited: the role of semantics.

Canadian journal of experimental psychology = Revue canadienne de psychologie experimentale·2001
Same author

Susceptibility to semantic illusions: an individual-differences perspective.

Memory & cognition·2001
Same journal

The stability and bifurcations of ecosystems within resource constraints - Dedicated to Professor Shigui Ruan on the occasion of his 60th birthday.

Mathematical biosciences·2026
Same journal

The hydra and hormetic effects in a single discrete-time overcompensation model.

Mathematical biosciences·2026
Same journal

Seasonal impacts on brucellosis transmission mediated by live sheep supply-demand dynamics.

Mathematical biosciences·2026
Same journal

Optimal controls and cost-effectiveness analysis on the transmission dynamics of early blight disease in tomatoes.

Mathematical biosciences·2026
Same journal

Temperature-dependent dynamics and allee effect thresholds mediate fourfold cusp stability in biological control of invasive vectors.

Mathematical biosciences·2026
Same journal

Dynamics of a stochastic tumor-immune interaction system with an Ornstein-Uhlenbeck process.

Mathematical biosciences·2026
See all related articles

Area of Science:

  • Ecology
  • Evolutionary Biology
  • Physiology

Background:

  • Understanding species' temporal decision-making is crucial for ecological and evolutionary studies.
  • Existing models often lack a quantifiable measure for a species' time value.
  • The concept of a 'natural discount rate' has not been empirically linked to species-specific traits.

Purpose of the Study:

  • To propose and define a quantifiable measure of time value for living species, termed the natural discount rate.
  • To establish a connection between this natural discount rate and a species' physiological characteristics.
  • To explore the implications of this rate for ecological success and biological optimality.

Main Methods:

  • Defining the natural discount rate as the rate of a species' disregard for future events.

Related Experiment Videos

  • Demonstrating the equivalence of the natural discount rate to the standard metabolic rate under steady-state conditions.
  • Establishing a link between the natural discount rate and empirically measurable biological parameters.

    • Main Results:

    • The natural discount rate is mathematically shown to be equal to the average standard metabolic rate of a species in a steady state.
    • This provides a method for assigning a numerical value to a species' time value.
    • The proposed rate offers a new metric for assessing species' ecological strategies.

    Conclusions:

    • The natural discount rate, linked to metabolic rate, offers a novel perspective on species' temporal valuation.
    • This metric can enhance predictions of successional success in ecological communities.
    • It provides a foundation for more robust solutions to biological optimality problems.