PPT-Chapters 5 & 6 Population Growth & Humans in the Biosphere

51 How Populations Grow What is a population Group of individuals of the same species in a given area 51 How Populations Grow Characteristics of Populations Geographic Distribution Range. They are internationally recognized nominated by nati onal governments and remain under sovereign jurisdiction of the states where they are lo cated Biosphere reserves serv e in some ways as living laboratories for testing out and demonstrati ng int Photo of introduced (exotic) rabbits at “plague proportions” in Australia from Wikimedia Commons.. Life Cycle Diagram. 0. 1. 2. 3. 0.3. 0.8. 0. 2. 4. seed. 1 to 2 . yr. old . adult. 2. to 3 . yr. HUMANS IN THE BIOSPHERE. Humans in the Biosphere. The . biosphere. is the part of the Earth where life exists, including the land, water, and air. . Human activities that affect the biosphere . are: . How can the human population continue to grow exponentially unlike other populations of organisms? Can this continue . indefinitely? . Objectives. Observe trends in human pop. growth. Identify controls that influence pop. growth. 7 billion and growing. How can humans cause population decline in other species?. “As dead as a dodo”. humans . Mauritius, . dogs. pigs. cats. rats. nests, . forests. Four ways humans can cause population decline are:. INTRODUCTION Biosphere reserves are areas of terrestrial and coastal/marine ecosystems, or a combination thereof, which are internationally recognized within the framework of UNESCO's Programme on Ma Unit. Keep an eye out for “The-Owl” and raise your hand as soon as you see him.. He will be hiding somewhere in the slideshow. “Hoot, Hoot”. “Good Luck!”. Keep an eye out for “The-Owl” and raise your hand as soon as you see him.. Unit 1: . Intro to Environmental Science. What is environmental science? . In a group of 2 or three, write as many words as you can think of that come to your mind when you think of “Environmental Science”. Chapter 2 Key Issue 3. Earth. ’. s Population History. 1 billion reached circa 1830. 2 billion reached 1930 (100 years later). 3 billion reached 1959 (29 years later). 4 billion reached 1974 (15 years later). Overpopulation: Proponents and Critics . Malthus Basics. Idea: late 1700’s. During this time (before the industrial revolution) he predicted that the growing population would eclipse the available food supply. . Arc of the course. Intro. Biodiversity is important for ecosystem function. Many causes for the loss of biodiversity. Module 1 – population growth. Module 2 – habitat loss and protection. Module 3 - climate . and Mechanisms. Species and Population. Organism. Species. : genetically similar organisms that reproduce. Population. : all members of . a. species in an area. Characteristics of populations:. Same species living in same area. Exponential Growth. (J-shaped curve). Logistic Growth. (S-shaped curve). Population ecology. Population ecology is the study of populations.. Population . = group of individuals of the same species occupying a common geographical area. Michael. A.. Ballou, PhD, US Foodservice Seminar 2009,. The American Farm Bureau “Addressing Misconceptions About Agriculture,” and. The American Meat Institute. Fact Sheets. The Safety of Consuming Animal Products Produced .