GEE101: Environmental Science Introduction PDF

GEE101: Environmental Science Mr. Michael D. Lee Department of Biology School of Medical Laboratory Science At the end of the lecture, the student should be able to: Define and articulate some common environmental terminologies Familiarize the importance...

GEE101: Environmental Science Mr. Michael D. Lee Department of Biology School of Medical Laboratory Science At the end of the lecture, the student should be able to: Define and articulate some common environmental terminologies Familiarize the importance and goals of Environmental Science Enumerate the different hierarchy levels of ecology.  All the abiotic and abioic factors that interacts to one another. Anything that surrounds an organisms. Provides conditions for growth and development Basic life support system. Internal environment External environment Found inside the body Found outside the body Internal environment External environment Cells, tissues, organs Biological, physical, chemical, and inside the body sociological  It is a pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Science is an empirical field. Science is a systematized body of knowledge based on facts Science is an effective technique to understand the natural world Science is a societal enterprise. Scientific method is process used to solve certain problems and explain phenomena Report findings Conduct experiments Make an observation Examine Result and make a conclusion Make a question An interdisciplinary academic field that draws geology, ecology, chemistry, physics, and other pure sciences. Anthropogenic impacts on the environment. Solution to solve a certain environmental problems. Protect the environment Conserve natural resources HAVE A SUSTAINABLE WORLD ENVIRONMENTAL PROBLEMS AND ISSUES ECOLOGY Scientific study of the interaction of living organisms to their environment. GEOSCIENCE Studies the form and shape of the Earth. ATMOSPHERIC SCIENCE Includes meteorology, greenhouse gas phenomena, etc. ENVIRONMENTAL CHEMISTRY Chemical alterations in the environment  Process by which people develop awareness, knowledge, and concern of the environment SKILLS COMMITMENT MOTIVATION  CAN ENHANCE VARIOUS SKILLS Critical Thinking skills Decision-making skills  Create a pollution-free environment Eco-friendly neighborhood Daily activities affect environment Utilize resources efficiently  https://www.youtube.com/watch?v=B-nEYsyRlYo Earth’s surface is under pressure from human activity Study of how organisms interact with each other and with their non-living surroundings. Abiotic (non-living) and biotic (living) relationship Gr. oikos, house or living place logos, study  concept “The trouble with ecology is that you never know where to start because everything affects everything else” Robert A. Heinlein (1907 - 1988) Famous fiction writer  First evidence of concept concept Described the interrelationships of animals to one another and to its environment. Aristotle (384-322 BCE) Greek philosophers and polymath The man who COINED the term Ernst Haeckel (1834 - 1919) German naturalist, zoologist, eugenicist, philosopher, physician, and professor  Ecological hierarchy Ecosystem Biomes Community BIOSPHERE ECOSYSTEM Population POPULATION Biosphere Organism  Individual LOWEST LEVEL OF THE ORGANIZATION (Fundamental unit of ecological organization) The organism is known as "species" Reproductively isolated/ capable of reproducing in nature (Mayr, 1942) Fundamentally similar in structure and form (Cronquist, 1978)  GROUP SIMILAR organisms belonging to same species. Can interbreed Can live in the same area Presence of competiton and limiting factor  Different groups ALL the POPULATIONS of interacting species in a given area Community size can vary Rely each other for food Can live in the same area Presence of competition and limiting factor group of ecosystem Almost SAME physical, chemical, and biological factors. Tropical rainforest Savanna Tundra Ocean Coral reefs  Global ecosystem The one that supports life. Consists of all the levels of ecological hierarchy. Wind Ocean current Sunlight Climate