Population Size and Diversity

Slides:



Advertisements
Similar presentations
The Five Factors of Evolution
Advertisements

Percents Practice Makes Perfect!. In 1999 there were 108,000,000 coffee consumers in the United States. If the US population was 272,690,813 in 1999,
Get folders AND binders Also have out your natural selection reading assignment from the weekend Gene flow Gene pool Genetic drift.
Explain how a knowledge of mechanisms of evolution could be useful to: A public health official dealing with an outbreak of pneumonia in a homeless population.
You will use the ratio of two similar figures to find their perimeter and area.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings PowerPoint ® Lecture Presentations for Biology Eighth Edition Neil Campbell.
Gene flow is the movement of alleles between populations.
The Genetics of Evolution What is the relationship between the genes of a population and evolution?
SHAPING EVOLUTIONARY THEORY SECTION 15.3 Mrs. Pachuta.
DARWIN. DESCENT WITH MODIFICATION All species of organisms living on Earth today are descended from ancestral species All species of organisms living.
Evolution Evolution is the change over time in the proportion of individuals in a population differing in one or more inherited traits. Evolution can occur.
COMMUNITY ECOLOGY cont pp Warm-up 4/2: Define Inter and Intraspecies competition. Which has greater competition? Explain Explain why parasites.
EVOLUTIONARY CHANGE WITHOUT SELECTION - created by Ms Mak.
HOW DOES EVOLUTION WORK? By: A Good Student. What is Evolution?  Evolution is descent with modification.  On a small scale, this can be changes in the.
Lynn English High School Ms. Mezzetti
Variations There can be many different variations For a trait. Variations of a trait can increase or decrease an organisms chance of survival in an environment.
Population Dynamics And Evidence for Evolution. Outline how population size is affected by natality, immigration, mortality and emigration Population.
HOW LARGE OF A SAMPLE SHOULD YOU USE? The larger the sample size, the more likely: o It will be representative of the whole population o The conclusions.
Objective: What is genetic variation and how does it affect a population?
EVOLUTION TERMS & PICTURES. LAMARKISM If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring.
Welcome to Islands The Story: This unit is about both biological and geological evolution. Islands provide interesting, unusual examples of evolutionary.
Welcome to Islands The Story: This unit is about both biological and geological evolution. Islands provide interesting, unusual examples of evolutionary.
Chapter 6 Content FRQ The California Department of Fish and Game is developing a plan to connect mountain “habitat islands” that are separated by open.
Natural Selection Lab 14.
Natural Selection and the Origin of Species
10.1 Early Ideas About Evolution
The Genetics of Evolution
Evolution… It’s a gene thing
All levels of life have systems of related parts and biologists study many different types of systems. A system is an organized group of interacting parts.
All levels of life have systems of related parts.
Statistics: the language of psychological research
Mechanisms for Evolution
Population.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
22-1: Community properties
Calculating genetic biodiversity
2.7.2D EXPLAIN THE GLOBAL IMPACT OF LOSS OF BIODIVERSITY.
Year 10, Pathway C 2012 New Generations.
Speciation 8.7.
Clicker #1 Is the pressure in the larger balloon greater than, less than, or equal to the smaller balloon? A) greater than the smaller balloon B) less.
All levels of life have systems of related parts.
Clicker #1 Is the pressure in the larger balloon greater than, less than, or equal to the smaller balloon? A) greater than the smaller balloon B) less.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
Clicker #1 Is the pressure in the larger balloon greater than, less than, or equal to the smaller balloon? A) greater than the smaller balloon B) less.
Clicker #1 Is the pressure in the larger balloon greater than, less than, or equal to the smaller balloon? A) greater than the smaller balloon B) less.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
Clicker #1 Is the pressure in the larger balloon greater than, less than, or about equal to the smaller balloon? A) greater than the smaller balloon B) less.
Genetic Equilibrium Population genetics looks at evolution at the genetic level Types of Evolution: Convergent Evolution Different species evolve similar.
2.7.2D EXPLAIN THE GLOBAL IMPACT OF LOSS OF BIODIVERSITY.
Clicker #1 Is the pressure in the larger balloon greater than, less than, or equal to the smaller balloon? A) greater than the smaller balloon B) less.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
5.3.3 Collecting Samples Sample Size
Lamarck vs. Darwin.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
All levels of life have systems of related parts.
Natural Selection Notes.
Charles Darwin.
Genetic Variation MT: Allele Frequency.
Similarities Differences
All levels of life have systems of related parts.
> < > < ≥ ≤ Shot at 90% Larger Smaller Larger
Mechanisms of Evolution
Presentation transcript:

Population Size and Diversity MT Evolution

Review: Population A group of the same species that lives in the same area

Review: Diversity differences

Quickwrite: Which population would have less diversity: all of the hares in California or all of the hares in Lindsay? Explain in writing

Hares in California Hares in Lindsay

Connection: Decrease Population Size = Decrease in Diversity The smaller the population is, the smaller the chance of having diversity. There are less individuals, thus they tend to be similar. On the hand, the larger the population is, the greater the chance of having diversity. There are more individuals, thus more chance for differences.