Integration Integration of population and evolutionary ecology of population and evolutionary ecology based on first principlesbased on first principles
Linking research and Linking research and educationeducation
Liz Pásztor, Zoltán Botta-Dukát, Tamás Czárán, Gabriella Magyar, Géza Meszéna
Eötvös University of Sciences, Budapest, HungaryEötvös University of Sciences, Budapest, Hungary
Linking research and educationLinking research and education
Outline: IntroductionIntegration• R&E• First Principles• Pop. Eco & Evo• TextbookFirst PrinciplesBook sectionsExample chapterOutlook
General theoryGeneral theory
TextbookTextbook
Integration!
Integration!
First principlesFirst principles
General, model-free, robust statements, General, model-free, robust statements, that that must be valid also in structured and must be valid also in structured and fluctuating environments. fluctuating environments.
Book sectionBook section
• I.I. Principle of exponential Principle of exponential population population growthgrowth
• II.II. Principle of growth regulationPrinciple of growth regulation • II.II. Principle of robust coexistencePrinciple of robust coexistence• III.III. Principle of inherited variationsPrinciple of inherited variations • III.III. Principle of natural selectionPrinciple of natural selection • III.III. Principle of allocationPrinciple of allocation
IntroductionIntegration• R&E• First Principles• Pop. Eco & Evo• TextbookFirst PrinciplesBook sectionsExample chapterOutlook
IntroductionIntegration• R&E• First Principles• Pop. Eco & Evo• TextbookFirst PrinciplesBook sectionsExample chapterOutlook
Population & evolutionary ecologyPopulation & evolutionary ecologyBook sectionsBook sections
Textbook: Chapter modulesTextbook: Chapter modules
IntroductionIntegration• R&E• First Principles • Pop. Eco & Evo• Textbook
• structure• example
First PrinciplesBook sectionsExample chapterOutlook
Notes: something interesting
Outlook: • main research lines• further readings• hot problems
Block:• case study• method• model
Messages • • •
Introduction: the context
Main text …
Textbook: examplesTextbook: examples
IntroductionIntegration• R&E• First Principles• Pop. Eco & Evo• Textbook
• structure• example
First PrinciplesBook sectionsExample chapterOutlook
Introduction
Main text
Figure
Chapter title
Textbook: examplesTextbook: examples
Note:Principle of
natural selection
Note:Principle of
natural selection
Main text
Figure
IntroductionIntegration• R&E• First Principles• Pop. Eco & Evo• Textbook
• structure• example
First PrinciplesBook sectionsExample chapter Outlook
Principle of exponential growthPrinciple of exponential growth
IntroductionIntegrationFirst Principles• Exponential growth• Growth regulation • Robust coexistence• Inherited variations • Natural selection • Allocation Book sectionsExample chapterOutlook
Populations of living organisms are able to grow Populations of living organisms are able to grow exponentially in number.exponentially in number.
Principle of growth regulationPrinciple of growth regulationExponential population growth occurs only Exponential population growth occurs only temporarily in nature. The mean rate of temporarily in nature. The mean rate of population increase is regulatedpopulation increase is regulated..
Principle of robust coexistencePrinciple of robust coexistencePopulations may coexist if their growth regulation Populations may coexist if their growth regulation differdifferss. The larger the difference in their regulation . The larger the difference in their regulation the more robust their coexistence isthe more robust their coexistence is..
Principle of Principle of inherited variationsinherited variations
IntroductionIntegrationFirst Principles• Exponential growth• Growth regulation • Robust coexistence• Inherited variations • Natural selection • Allocation Book sectionsExample chapterOutlook
Errors always occur Errors always occur whenwhen the genetic material the genetic material is is replicatreplicateded. . RepeatedRepeated emergence of inherited emergence of inherited variation within populations is unavoidablevariation within populations is unavoidable..
Principle of natural selectionPrinciple of natural selectionIf there is difference between the population growth If there is difference between the population growth rates of individuals with different heritable traits, the rates of individuals with different heritable traits, the one with the higher growth rate exponentially one with the higher growth rate exponentially outgrows the one with the smaller growth rate. outgrows the one with the smaller growth rate.
Principle of allocationPrinciple of allocationLife-history traits increasing the population growth Life-history traits increasing the population growth rate (fitness) are in trade-off, that is, they can rate (fitness) are in trade-off, that is, they can increase at the expense of each other only.increase at the expense of each other only.
Population & evolutionary ecologyPopulation & evolutionary ecology
I. Population explosions
I.1. Exponential capacity of population increase
I.2. Capacity of spreading
II.1. Regulated growth of populations
II.3. Coexistence in space and time
II. Regulation and coexistence
III.1. Inherited variations
III. Selection, adaptation and genetic variations
III.2. Rapid selection and spatial differentiation
III.3. Individual & population interactions and natural selection
II.4. Ecological websIntroductionIntegrationFirst PrinciplesBook sectionsExample chapterOutlook
Book sectionsBook sections
II.2. Competition and coexistence
Principle of robust coexistencePrinciple of robust coexistence
Research areas:
Population dynamics, population genetics, population interactions (competition), niche theory, biogeography, evolutionary ecology
Key concepts:
geographical distribution, competitors, competitive exclusion, exploitative and interference competition,
fundamental and realized ecological tolerance (Hutchinson’s niche concept), limiting similarity, robust coexistence, components of the feed-back loop, impact and sensitivity
Populations sharing regulating factors may coexist if Populations sharing regulating factors may coexist if their growth regulation differtheir growth regulation differss. The larger the . The larger the difference difference is is in their regulation the more robust their in their regulation the more robust their coexistence iscoexistence is..
IntroductionIntegrationFirst PrinciplesBook sectionsExample chapterOutlook
II.2. Competition and coexistenceII.2. Competition and coexistence
Sub-chapters:1. Geographical distribution and competition
1. note: Survival of the fitter in populations with exponential growth
2. Competition for a single regulating factor 2. note: Survival of the fitter in populations with
logistic growth 1. block: Basic models of interspecific competition
Lotka-Volterra modelsTilman model of competition for two nutrients:
Graphic representationComponents of population regulation
3. Competition for more regulating factors4. Strength of interspecific competition and the
robustness of coexistence5. Niche and realized ecological tolerance
IntroductionIntegrationFirst PrinciplesBook sectionsExample chapterOutlook
II.2. Competition and coexistenceII.2. Competition and coexistence
IntroductionIntegrationFirst PrinciplesBook sectionsExample chapterOutlook
II.2. Competition and coexistenceII.2. Competition and coexistence
IntroductionIntegrationFirst PrinciplesBook sectionsExample chapterOutlook
Competition and coexistenceCompetition and coexistence
OutlookOutlook
Ecology: Ecology: „The science of the struggle for existence.”
Haeckel, 1866; Cooper, 2003
Regulation of population growth is a Regulation of population growth is a must.must.
A general theory is not only possible A general theory is not only possible but it is also very useful.but it is also very useful.
Integration, operationality, disciplinarityIntegration, operationality, disciplinarity
IntroductionIntegrationFirst PrinciplesBook sectionsExample chapterOutlook
Linking research and educationLinking research and education
Effective education requires clarity and a Effective education requires clarity and a coherent presentation.coherent presentation.
Clarity and coherent presentation improves Clarity and coherent presentation improves research.research.
Special thanks to the co-editor and Special thanks to the co-editor and co-authors of the „Ecology” book!co-authors of the „Ecology” book!
Oborny Beáta Kalapos Tibor Major Ágnes Scheuring István
Jordán Ferenc Kun Ádám Hahn István