PPT-Introduction to Exploring K-T Extinction Patterns

Background vs Mass Extinction Background extinction species gradually and continuously go extinct creating a turnover of species through time Background extinction and mass extinction 0 600. ASTR 1420. Lecture. 9. Sections : 4.6, 6.4, 11.3. Mass Extinctions in the Earth History. Mass Extinctions. Check . http://en.wikipedia.org/wiki/Impact_event. http://en.wikipedia.org/wiki/Mass_extinction. 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. Frode Svartdal. . University. of . Tromsø. . Oct. 2013. Extinction: Basics. Extinction is defined in terms of a reinforcement process. Extinction contingencies. The . stimulus. (S. R. or US) is discontinued. (. Pavlovian. & Instrumental). Learning, Psychology 3510. Fall, 2016. Professor Delamater. Extinction: Procedure & Process. The extinction procedure refers to the removal of reward, when it previously occurred.. 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. ASTR 1420. Lecture . 9. Sections : 4.6, 6.4, 11.3. Mass Extinctions in the Earth History. Mass extinction . (a.k.a. extinction event) : is a sharp decrease in the number of species in a relatively short period of time.. Remember. Operant conditioning extinction differs from classical conditioning extinction. During extinction, responding decreases to baseline levels for both classical and operant conditioning. BUT: Operantly conditioned behavior shows:. DARWIN’S UNDERSTANDING VS. PRESENT DAY. How are inheritable traits passed?. How do variations appear?. Today’s understanding of genes, DNA, variation, and mutations is central to our understanding of how evolution works . FOR COMMISSIONERS. PREPARED IN COLLABORATION WITH . JEFF SCHWEIGER, . NATIONAL CAPITAL AREA COUNCIL ASSISTANT COUNCIL COMMISSIONER. National Key 3 Announcement. NOVEMBER 2016. National Commissioner Charles Dahlquist and Chief Scout Executive Mike Surbaugh clarified the purpose of the Commissioner Service to Exploring initiative and charged the field with utilizing Scouting Commissioners as a temporary stop gap while councils develop more comprehensive plans to serve their Exploring units. Here is an excerpt:. Outline . Effects of Extinction Procedures. Decreased responding. Increased variability in responding. Extinction of Original Learning. Spontaneous Recovery. Renewal of Original Excitatory Conditioning. AP Statistics Chapter 1 - Review 2013 Mrs. White AP ExamTopic Outline Topic Exam Percentage Exploring Data 20%-30% Sampling & Experimentation 10%-15% Anticipating Patterns 20%-30% Statistical Inference Essential Questions. What is extinction?. Which species have become extinct in modern times? . What are the characteristics of past mass extinctions? . How do modern extinction rates compare with natural (background) rates?. Zebra Mussel . Species Introduction. “Introduced . species are species that have become able to survive and reproduce outside the habitat where they evolved or spread . naturally.” . -. United States Environmental Protection Agency. Behavior. Effects of Extinction Procedures. Response Recovery after Extinction. Enhancing Extinction Performance. “Paradoxical” Reward Effects in Extinction. Extinction Procedures. Classical Conditioning: .