Adaptive radiation Divergence Different traits in closely related species Common Ancestral species many species adapted to different habitats.

Slides:

Advertisements

Similar presentations

Patterns of Evolution Objectives:

Advertisements

SBI3U WARM UP PROOFS of EVOLUTION.

The History of Life Section 17–4 Patterns of Evolution

$200 $300 $400 Final Jeopardy $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 Some More of That.

To Diverge means to spread apart. Think of other words that use the same root word. “Dissect, Divide, Divorce” Could two or more different species have.

Patterns in Evolution.

Convergent evolution Evolution toward similar traits in unrelated species.

Patterns of Speciation Diversify in Bursts (punctuational) Diversify slowly (gradual) Time No diversification (living fossil) Evolutionary Changes X X.

Evolution in Action. What is a Species? Morphological definition – a species is defined by its structure and appearance Biological definition – a species.

Patterns of Evolution. Macroevolution/Microevolution allele gene  Both involve changes in allele frequencies in gene pools same basic  Both work through.

Patterns of Evolution Chapter 17 Section 4.

Evidence of Evolution Chapter 15 Part II.

Looking at the “natural” population below: Long neck Long neck Short neck.

Evolution of Populations. Population Genetics Natural Selection: nature selects which individuals survive and reproduce- Evolution: occurs as a populations.

Evolution (I). Alfred Russel Wallace “On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle.

Chapter 16: Evolution of Populations

Maryam Daman UOG.

Mechanisms of Evolution Convergent Divergent Adaptive radiation.

Speciation, Reproductive Isolation, and Patterns of Evolution AP Biology Evolution IV.

Ornithology: Introduction A little over 9,700 bird species live in the world today.

Biodiversity, Ancestry, & Rate of Evolution (15.3)

Adaptive Radiation Chapter 19. Ecological Niche The role an organism plays within a community Includes feeding, habitat, competitors, enemies etc Darwin’s.

Evolution by Natural Selection Evolution is the change in inherited traits in a population/species from one generation to the next. Natural selection.

The process by which many species evolve from a common ancestor is known as adaptive radiation The Original Common ancestor was under intense competition.

15.3 Evolution in Action. Standards CLE Explain how evolution contributes to the amount of biodiversity CLE Explain how genetic variation.

Darwin’s Finches are groups of birds with similar body shape and size but occupy their own niche and once had ancestral species. This is an example of.

Chapter 24 Macroevolution and Speciation. Macroevolution Macroevolution refers to any evolutionary change at or above the species level. Speciation is.

Evolution = change over time. Evolution Individuals do NOT evolve! Populations evolve. Evolution occurs at conception, when new combinations of DNA are.

Patterns of Evolution. Sequential Evolution Changes in the gene pool from one generation to the next. Populations evolve gradually as they become adapted.

Chapter 9 con’t March 14th. Founder Principle Founder principle – populations founded by a very small number of individuals generally contain a small.

End Show Slide 1 of 25 Copyright Pearson Prentice Hall 17-4 Patterns of Evolution.

Copyright © 2009 Pearson Education, Inc.  A species can be defined as a group of organisms whose members can breed and produce fertile offspring, but.

Speciation Until recently, over 500 species of cichlid fishes lived in East Africa’s Lake Victoria Copyright © 2009 Pearson Education, Inc.

Speciation Process by which a daughter species evolves from a parent species Genetic Divergence- when populations become reproductively isolated Species-population.

Speciation The formation of a new species. Speciation- occurs in isolated populations Geographic isolation leads to reproductive isolation Once the population.

Edit the text with your own short phrases. To change the sample image, select the picture and delete it. Now click the Pictures icon in the placeholder.

Chapter 15: Theory of Evolution Section 1: History of Evolutionary Thought Section 2: Evidence of Evolution Section 3: Evolution in Action.

Peppered Moth Evolution

Evolution & Speciation

5.1 Evidence for evolution There is overwhelming evidence for the evolution of life on Earth.

Types of Evolution BW HAVE SLATE, MARKER & ERASER OUT!!! Have HW paragraphs open on desk You are in a large empty room with a rough cement floor. You’ll.

Patterns of Evolution.

Ecology and Evolution: the Creation of Biodiversity 1.

Patterns of Evolution Honors Biology- Mr. Wilmot.

Evolution & genetic variation

Darwin’s Theory of Evolution by Natural Selection Ms. Eramchuk.

Unit 8 Evolution Notes Part 4: Patterns of Evolution & Evidence for Evolution.

Speciation and Extinction Rates. The history of Earth as been shaped by the rise and fall of groups of organisms Concept 23.2: The rise and fall of groups.

Evolution: Change over Time

Patterns in Evolution.

Patterns in Evolution.

Speciation evolution of a new species

Patterns of Evolution 1.

Diversity of Life Reading Reflection #6

Patterns in Evolution.

EVOLUTION Evidence of Change.

Genetics and Evolution

Animal Adaptations The Cheetah

How can animals that are not closely related be similar in appearance?

Allopatric, Sympatric and Parapatric Speciation

Unit 5 Evolution Evidence of Evolution.

Unit Two, Day 5 Adaptive Radiation.

Evidence for Evolution

Proof Of Evolution.

Patterns of Evolution *.

Patterns of Evolution 1.

The Theory of Evolution

Week 12 Vocab Definitions

What is genetic equilibrium?

Unit 10: Speciation 10.5 Patterns of Evolution.

Presentation transcript:

Adaptive radiation Divergence Different traits in closely related species Common Ancestral species many species adapted to different habitats

Adaptive Radiation

Anoles diversity is most striking in the Caribbean

Adaptive Radiation Hawaiian honeycreepers Variation in color and bill shape is related to their habitat and diet

Cichlid fish of the Great Lakes of Africa. Species flocks fill different ecological niches.

HOMOLOGOUS STRUCTURES Front legs / arms of many animals have similar basic structures

Adaptive Radiation Disappearance of dinosaurs led to the adaptive radiation of mammals

Videos Wolfe: Adaptive radiation