PPT-Year 10 Lesson 9 – sympatric speciation

Science Lesson 8 challenge answer Investigate and make note of other species that have evolved due to parapatric speciation  Typically seen in species of fish Learning intention To know what sympatric speciation is and how it occurs . The . formation of a new . species. 15.3 Speciation. What is a species?. A group of organisms with similar characteristics capable of producing fertile . offspring. Members of a . species. . share. the . Macroevolution is essentially the formation of new species (speciation) and accompanying events. . Reproductive isolation can occur in a variety of ways. Reproductive isolation is the key to cladogenic speciation. EVOLUTION #1 (Group 3). Strawberry Frogs Forever. Participants: Lin Xiang. Ingo . Schlupp. Tiffany Roberts. Anne . Grippo. Jerry Farris. Facilitators: Brooke . Evolution. Speciation Basics. Individuals of different species cannot . interbreed. under natural conditions . Described as being . reproductively isolated . from one another. Populations of different species do . . Allopatric Speciation Sympatric Speciation Adaptive Radiation. Objectives. To define speciation. To explore the different types of speciation. To examine real life examples of different types of speciation. The rise and fall of biodiversity. Four major mass extinctions of marine organisms:. End of Silurian Devonian, Permian, and Cretaceous). Rise in diversity during Cambrian, Silurian, Cretaceous, and Paleogene. . Allopatric Speciation Sympatric Speciation Adaptive Radiation. Objectives. To define speciation. To explore the different types of speciation. To examine real life examples of different types of speciation. Meara. EEB464 Fall . 2017. http://www.youtube.com/watch?v=lopTMhAbXoI. Learning objectives. Understand factors that can lead to speciation. Consider the geography of speciation. Describe approaches to . Species. == “kind” or “type” in Latin. Typological . (morphological) species. . == a group of organisms that share certain characteristics which are different than other groups—usually differences in anatomy. . KEY CONCEPTS. • Although many species persist for long periods of time both genotypic and phenotypic changes occur over time.. • Even if change is occurring, individuals that interbreed within a population(s) maintain the status of the population(s) as a species.. Cartoon – gentleman and ape. 2. Key Concepts:. Species concepts. Development of reproductive isolation. Patterns of speciation. Macroevolution. Human evolution. Evolution continues…... 3. specie. Learning Goal: . To explore the factors leading to the evolution of a new species. . Success Criteria:. I know I am succeeding when I can… . define the concept of speciation. identify the modes of speciation. Populations must become isolated. Reproductive isolation is key!. Once isolated, populations will evolve independently (different factors affecting each). Two types of speciation. allopatric. geographic separation. (Unit 10, species concept. Sympatric speciation . Sympatric speciation, (from the Greek ‘same place’) involves the splitting of an ancestral species into two or more reproductively isolated groups without geographical isolation of those groups..