PPT-Biodiversity, Species Interactions,

and Population Control Chapter 5 Miller and Spoolman 2010 Figure 51 An endangered southern sea otter in Monterey Bay California USA uses a stone to crack the shell of a clam insert It lives in a giant kelp bed near San Clemente Island California background Scientific studies indicate that the otters act as a keystone species in a kelp forest system by helping to control the populations of sea urchins and other kelpeating species. What is Biodiversity?. All living things in a food web are connected.. If the numbers of one species are affected it affects the numbers of all other species in the food web.. If the numbers of baboons decreased then this would affect every other living things in the food web.. AP Environmental Science. Mr. Grant. Lesson . 38. Objectives:. Define . the terms . extinction. , . extirpation. and . mass extinction. .. Contrast . background extinction rates and periods of mass extinction.. Prepared by Dakota Joiner & Lindsey bat Joseph for . Alexander College Writing and Learning Centre, April 2015.. Research source: . Krebs, Charles J. . Ecology, . 6. th. ed. Pearson. : San Francisco, 2009. Objectives:. Define the terms . extinction. , . extirpation. and . mass extinction. .. Contrast background extinction rates and periods of mass extinction.. Evaluate the primary causes of biodiversity loss.. ?. What diversity is…. What diversity does…. So, there sure are a lot of species… (= biodiversity). WHY PRESERVE BIODIVERSITY?. So, there sure are a lot of species… (= biodiversity). WHY PRESERVE BIODIVERSITY?. Types of species interactions. Positive . Negative. N. eutral. Positive species interactions. Mutualism. Both species benefit by interacting with each other. Ant-Acacia mutualism. Mutualism. http://. It is the variety of all the different living things and their homes on the planet. . BIO. . DIVERSITY. Bio= biological organisms . -living things!. diversity= the amount of variation. Chapter . 5. Key Concepts. Species . interactions. Responses to changes in environmental . conditions. Factors determining number of species in a community. Species Diversity and Ecological Stability. Which do you like better?. A. B. Which do you like better?. A. B. Which do you like better?. A. B. Which do you like better?. A. B. A. B. Which do you like better?. A. B. Which do you like better?. A. 20 . million species. . of organisms. But, of which only . 1.4 . million . species . have been . identified so far. . These . species differ widely from . one another. . This . variation . in living organisms is called . Metabarcoding : a tool to accelerate biodiversity assessments ? Florence Pradillon & Sophie Arnaud- Haond Ifremer Meioscool 2016, IUEM, 27 June - 1 st July 2016 Outline of the talk Match the following to the correct description. One Teacher. species. population. community. ecosyste. m. All Teachers. Teachers and Students. George West. Look through the vocabulary cards on your desk.. Presented by. Dr.Anubha. Gupta. Faculty , S.S. in Commerce . Vikram. University. Useful for BBA(H)/B.COM(H)/M.COM and allied subject. Biodiversity. The term biodiversity was coined as a contraction of biological diversity by E.O. Wilson in 1985. . Biodiversity at regional level is better understood by categorizing species richness into four types. . Whittaker (1972). described three terms for measuring biodiversity over spatial scales: . alpha, beta, and gamma diversity.