PPT-Multi-Trophic Level, Pairwise Species Interactions:

PredatorPrey ParasitoidHost amp ParasiteHost Relationships Nature red in tooth amp claw Alfred Tennyson 1809 1892 Why study predation amp parasitism A basicscience answer. Ecology. ECOLOGY READING. CHAPTER 47 and CHAPTER 48 – Ecology. CHAPTER 6 – to describe the roles of photosynthesis and cellular respiration. ECOLOGY VOCABULARY. Carrying capacity. Cellular respiration. Elisa, Chelsea, Ellie. Trophic Cascades. Herbivores can limit plant populations, but…. In most places, plants are abundant and herbivores don’t limit plant growth. So…why is the world green?. HSS hypothesis. Assessment Statements. Define species, habitat, population, community, ecosystem, and ecology. Distinguish between . autotroph. and . heterotroph. Ditinguish. between consumer, . detritivores. and . Cornell Notes and Q’s:. Take 2 pages of Cornell Notes based on the information you learn about in this presentation. . Answer the Questions you see included on the slides. (Q:). These notes will be included in a notebook check. 20 . Organism ecology . = . relationship between organism and physical environment. . Population ecology. . =. investigates the dynamics of population change. Community ecology. . =. focuses on patterns of species diversity and interactions. How do populations interact?. Populations compete amongst themselves & . between . other populations. …amongst themselves. Populations compete amongst themselves & between other populations. . Community Ecology. Community. = group of populations of different species living close enough to interact. Interspecific interactions. Can be positive (+), negative (-) or neutral (0). Includes:. 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://. TROPHIC LEVELS. An organisms trophic (feeding) level is determined by the organism’s source of energy. There are 3 main trophic levels in a food web.. Autotrophs. Heterotrophs. Saprotrophs. 1. AUTOTROPHS:. LEVELS. ECOLOGICAL. PYRAMIDS. The . ____. is the . ______________. for food chains.. . is a sequence of feeding relationships describing . ______. ___________________. .. source. Mrs. Milam. Adapted from Ms. Davies. 5.1.1 Define . species, habitat, population, community, ecosystem . and . ecology.. Ecology. : . . Environment has 2 components: . . . Left: Image from Wikimedia Commons of one of the earliest known depictions of a food web, by Victor . Summerhayes & Charles Elton (1923) for Bear Island, Norway. Right: Provenance of “A simplified food web for Northwest Atlantic” unknown . Photosynthesis and Sugar. Producers use the. e. nergy from. s. unlight to combine. c. arbon dioxide. a. nd water to make oxygen and a simple sugar called glucose. This process is called . photosynthesis. Dormann. & . Bruthgen. in “Food Webs: Science for Impact”, Moore et al Eds. ODE ordinary differential equations, MTE metabolic theory of ecology. 38 tree spp.. Jan Hrcek et al. 2013 . Oecologia.