'Temporal isolation' diaporamas de présentation

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Speciation , the origin of new species, is at the focal point of evolutionary theory

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Species and Speciation I. Species Concepts II. Recognizing Species A. Morphology

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Jeopardy

Jeopardy. Choose a category. You will be given the answer. You must give the correct question. Click to begin. Choose a point value. Choose a point value. Click here for Final Jeopardy. Survival. of. The. Fittest. Baby!. 10 Point. 10 Point. 10 Point. 10 Point. 10 Point.

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Chapter 24

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MECHANISMS OF EVOLUTION: GENETIC VARIATION

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Lecture 3: The Origin of Species Campbell & Reece chapters: Chapter 24 Chapter 25: Pp. 522-527.

Lecture 3: The Origin of Species Campbell & Reece chapters: Chapter 24 Chapter 25: Pp. 522-527. Speciation - the origin of new species from pre-existing species. . What is a species? (Latin for kind, type). 1) Biological Species:

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CHAPTER 24 THE ORIGIN OF SPECIES

CHAPTER 24 THE ORIGIN OF SPECIES. Different Species Of Japanese Ants!!! What is a species ? How does speciation occur ?. Mutations + Sexual recombination + genetic drift +gene flow + natural selection! = . Macroevolution: --the origin of new species, genera,

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Biology

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Mechanisms of Speciation, Maintaining a Species, and Types of Evolution (Chap. 20)

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Chapter 16-3

Chapter 16-3. Isolating Mechanisms By Paul and Jae. Speciation means the formation of new species. Speciation:. As new species evolve, populations become reproductively isolated from each other. There are three isolation mechanisms as new species evolve. . Isolating Mechanisms.

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Patterns of Evolution

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17.3 The Process of Speciation

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Speciation

Speciation. Chapter 16-3. Review Standard 8a. Students know how natural selection determines the differential survival of groups of organisms. What is natural selection? In nature, certain animals are selected (survive) because they have traits and behaviors that benefit them.

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THE SKUNK( Mephitis mephitis)

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horse

horse. donkey. Speciation. mule. Speciation. Defined : the rise of two or more species from an existing species Species : group of organisms that can interbreed and produce fertile offspring Isolation reduces gene flow Reproductive Geographical Behavioral Temporal

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Evolution: Macroevolution & origin of species

Evolution: Macroevolution & origin of species. Chapter 17. Macroevolution large-scale change at or above species level includes development of new species fundamentally linked to microevolution c ontinued microevolution often leads to development of new sp. What is a Species?

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Chapter 24 Main Ideas

The Origin of Species. Chapter 24 Main Ideas. Speciation. Microevolution vs. macroevolution Biological species concept. Reproductive Barriers. Pre-mating: Habitat isolation Temporal isolation Behavioral isolation Post mating, pre-fertilization: Mechanical isolation Gametic isolation

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What is speciation ?______________________________________________________

What is speciation ?______________________________________________________. Reproductive Isolation ____________________ ____________________ ____________________ ____________________ ____________________ ____________________ ____________________. Geographic Isolation

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