Announcements Reading is available from web site. Read it closely by next Thursday and be prepared to discuss in class!!! Urban Forestry project, we'll.

Slides:

Advertisements

Similar presentations

Speciation Genetic Equilibrium Disruption of Genetic Equilibrium

Advertisements

Evolution of Biodiversity

Evolution of Biodiversity

Examine how life continues to evolve within a changing environment

Evolution – Formation of New Species What is a species? Biological species concept - groups of interbreeding natural populations that are reproductively.

Causes of Diversity and Evolution of Life on Earth Charles Darwin Alfred Russell Wallace.

Evolution of Populations Chapter 16. Homologous structures - similar structures found in related organisms that are adapted for different purposes. Ex:

Natural Selection Developed by Charles Darwin in 1859

Population GENETICS.

MECHANISMS FOR EVOLUTION Honors Biology. REVIEW Evidence for Evolution and Examples What is Natural Selection? How did Darwin develop theory of Natural.

Ch. 16 Evolution of Populations

Darwin’s 4 Postulates of the Theory of Evolution by Natural Selection part 1 [15.3] SPI 2 Recognize the relationship between form and function in living.

1 Web-based Course วิชา ความหลากหลายทางชีวภาพ ในประเทศไทย (Biodiversity in Thailand)

How does Natural Selection affect the Genetics of Populations? How do different Species arise? How do Species become Extinct?

CP Biology Ms. Morrison. Genes and Variation  Gene pool = combined genetic information of all members of a particular population  Relative frequency.

For natural selection to work – traits must vary Individuals & pop’ns do vary extensively –Beaks of G. fortis –Color spots on guppies Existing variation.

Evolution What role does the environment play in an organism’s survival, reproduction and evolution?

Mechanisms of Evolution. Hardy-Weinberg Principle A. A population is in genetic equilibrium—all individuals are equally adapted to their environment &

EVOLUTION & SPECIATION. Microevolution. What is it? changes in the gene pool of a population over time which result in relatively small changes to the.

Evolution of Populations. How Common Is Genetic Variation? Many genes have at least two forms, or alleles. Many genes have at least two forms, or alleles.

AP Biology Chapter 15 – Mechanisms of Evolution

Announcements Urban Forestry data and photos due next week after the break. Reading. Writing assignment due Oct 18. Choose one of the characteristics out.

Announcements Exams will be ready on Thursday. I have a sudden deadline I need to meet by the end of this week and have not been able to finish going through.

5 Evolution and Community Ecology CHAPTER. Black and White, and Spread All Over Zebra mussels and quagga mussels were accidentally introduced into Lake.

Activity 101: Birds of a Feather? Challenge  How does Natural Selection help explain the extinction of the dodo bird and the success of the common pigeon?

Chapter 17: Evolution of Populations Section 17-3: The Process of Speciation.

EVOLUTION & NATURAL SELECTION. Starter Natural selection recap Can you remember natural selection from AS? Outline the process of natural selection.

Section 19-2: Patterns and Processes of Evolution.

Natural Selection. Your Definition How would you describe the mechanism of natural selection?

Ch. 7 – Biological Diversity Diversity of Life 1. How did it come about? 2. Is it important? 3. What is necessary to sustain that diversity?

Chapter 16 Darwin’s Theory of Evolution Evolution What is evolution? A change in a population over time These changes is caused by many factors and are.

The Living World Chapters 5, 8, 9. Ecology Individual- natural selection Population- evolution Community- interacting species Ecosystem- cycling of energy.

Chapter 4 Diversity of Life. Slime Mold mmmk mmmk.

Evolution of Biodiversity. Diversity of Species Biodiversity a. ecosystem diversity b. species diversity c. genetic diversity.

Natural Selection Videos Videos Natural selection Natural selection Speciation Population Genetics Population Genetics Evidence of evolution Evidence of.

Evolution: modern organisms have changed over time and all organisms share a common ancestor Evidence for Evolution Homologous Structures Fossil Record.

Natural Selection and Evolution

Evolution, Biodiversity, & Population Ecology

Evolution Practice Test

Development of New Species by Evolution

15.3 Mechanisms of Evolution

8.2 Speciation Pages

Section 3: Speciation Preview Bellringer Key Ideas Defining Species

Section 3: Speciation Preview Bellringer Key Ideas Defining Species

15-2 Mechanisms of Evolution

Patterns of Evolution There are several broad patterns of evolution observable in nature: Speciation Extinction Gradualism Punctuated equilibrium Adaptive.

Plant Ecology - Chapter 6

Natural Selection Vocab Review

7th Chapter 7-3 Cornell Notes

Population Genetics.

Type Topic in here! Created by Educational Technology Network

EVOLUTION OF POPULATIONS

Evolution Standards Rachel Tumlin.

Chapter 17.3 (p ) Speciation.

Evolution vocab.

ADAPTATIONS AND EVOLLUTION OF SPECIES

DNA and the Genome Key Area 7c Speciation.

Natural Selection Natural selection: organisms with favorable traits for a particular environment survive, reproduce, and pass these traits on to the next.

Notes: What is Evolution (Genetic Basis)

Isolation 17.3 Speciation.

Diversity of Life Reading Reflection #3

The Genetic Basis of Evolution

Chapter 10-3 Notes: Natural Selection in Action

Natural Selection Review

Evolution as Genetic Change

Chapter 11 Evolution of Populations

ADAPTATIONS AND EVOLLUTION OF SPECIES

Fig. 1 Most models of biological responses to climate change omit important biological mechanisms. Most models of biological responses to climate change.

Achievement Standard v2

Presentation transcript:

Announcements Reading is available from web site. Read it closely by next Thursday and be prepared to discuss in class!!! Urban Forestry project, we'll probably start on campus. Meet in Rm. 202, as usual, next week.

Urban forestry Ideas about how to incorporate new technology into botanical collections and studies. A bit of plant ecology but will also allow you to practice identifying trees that you will see on a daily basis.

Muller's ratchet Haldane's rule

Levels of evolution Genes or DNA Genome Individual Population Species Species flock or grove Ecological community

Individuals are the level where natural selection acts most directly

Plants can have tremendous fecundity. Recruitment rates are extremely low. Life history strategies are plastic and adaptive to local environments. Ploidy level variation exists within species.

Populations 'meta-populations' Shifting due to climate change

Populations Sex-ratios can vary. Effective population size. Pollen and seed migrate differently. Environmental gradients.

Species The coin and currency of conservation. Speciation. Reproductive Isolation Mechanisms. Extinction.