Find materials for this course in the pages linked along the left. "Resetting the clock" means that just as a high-l species is about to explode or irrupt, its numbers are set back by some environmental or abiotic factor (such as cold or drought). Fig. %%EOF A group of the same species that lives in one area 3. While, a group of populations of different species in a given area is called a community. 0000001605 00000 n Population ecology is the study of populations in relation to the environment. 2.1 Continuous population models for single species A core feature of population dynamics models is the conservation of population number, i.e. helps to identify the stage(s) in the life cycle that affects population … --What is a Fish? 594 0 obj<>stream Course. Many arctic or temperate invertebrate populations may have these sorts of dynamics -- high growth potential that is checked by the end of the growing season. 592 22 In this lesson we look at population size with respect to: The definition of population, characteristics, parameters, measurement, limiting factors as well as types of population growth. 0000004278 00000 n The word ‘ecology’ (oekologie), first proposed by Earnst Haeckel (1869), a German Biologist, is derived from Greek words, oikos meaning the dwelling place or home and logos meaning the discourse or study; thus, the word ecology literally means the study of living organisms, both plants and animals in their natural habitats or homes. Population and Community Ecology Nature exists at several levels of complexity. This is one of over 2,200 courses on OCW. Describing a population C. Summary II. 0000003330 00000 n Basic Concepts. 1. I. Distinction between additive and compensatory mortality. ... Demography is used in ecology (particularly population and evolutionary ecology) as the basis for population studies. 27.1). xref Lecture notes files. In this live Gr 11 Life Sciences show we take a close look at an Introduction to Population Ecology. Structured Population Dynamics. ECOLOGY. … Lecture notes for ZOO 4400/5400 Population Ecology. 0000000750 00000 n ... Chapter 06_lecture Author: admin Used with permission.) 0000003653 00000 n 0000003697 00000 n 1933, Australian biologist famous for his work on lab. Lecture notes, lecture all . Principles of Ecology BIOLOGY MODULE - 4 Environment and Health 146 Notes 25.1 ENVIRONMENT, ECOLOGY AND BIOSPHERE 25.1.1 Environment The term environment denotes all the physical, chemical and biotic conditions 0000007731 00000 n LEC # TOPICS LECTURE NOTES; 1: Introduction: what is ecology? 27.2. Dispersion 4. University of Connecticut. It includes environmental influences on population density and distribution, age structure, and variations in population size. Population Ecology 2. Furthermore, the lecture notes provided here are not comprehensive, i.e., you must attend lecture and lab to get all the information. 592 0 obj<> endobj Photosynthesis handout . The same may be true of some "predator control" programs for species such as coyotes that have fairly high potential reproductive rates. Demography is the description and prediction of population growth and patterns in age/size structure. The boxes list a few potential mechanisms (the "hows") and kinds of organisms (the "whos") that might fall in each of the category combinations. They occupy an area containing all needed resources. 3: How to be alive/thermodynamics of life (PDF - 1.3MB) Redox handout . trailer 0000007234 00000 n Biotic potential 0000002064 00000 n 4: CI lecture: getting started with the term project (Courtesy of Harlan Breindel. A group of organisms of the same species occupying a particular space at a particular time Cole (1957). The area that is used to define a sexual population is defined as the area where inter-breeding is potentially possible between any pair within the area. 5 Characteristics of Population 1. Below, I combine the concepts of        density-dependence (largely based on biotic interactions with internal feedbacks),        density-independence (largely due to environmental stochasticity, particularly in weather)        and the stability or instability of systems. Two arguments against density-independence (after A. J. Nicholson. Population size Population density Dispersion patterns Demographics Survivorship curves Population growth 3. Ecology: General Ecological Principles, Ziser, Lecture Notes, 2004 2 supporting a characteristic and distinctive group of species other terms for ecosystems: biomes, ecoregions, life zones, etc the structure of an ecosystem consists of both biotic and abiotic parts the function of an ecosystem can be studied at various biotic levels or University. 0000006666 00000 n MIT OpenCourseWare is a free & open publication of material from thousands of MIT courses, covering the entire MIT curriculum.. No enrollment or registration. 0000003576 00000 n Welcome! Green plants manufacture food by photosynthesis which other organisms obtain directly or indirectly. Introduction to Ecology: Population Ecology Notes Mrs. Laux AP Biology 2 2. populations increase in size as long as a. birth rate (natality) is greater than death rate (mortality) 3. r = (b –d) + (i –e) for a local population (where migration is a factor) III. 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