integration of population and evolutionary ecology based on first principles linking research and...

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


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


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


II.2. Competition and coexistenceII.2. Competition and coexistence


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


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

integration of population and evolutionary ecology based on first principles linking research and...

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