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Ecology . STUDY GUIDE. Ecology . The study of relationship between the environment and the living organisms (Interactions) Organisms Species pop Community Habitat Eco System biomes biosphere . Individual organisms. The smallest unit that an ecologist will concern .
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Ecology STUDY GUIDE
Ecology • The study of relationship between the environment and the living organisms (Interactions) • Organisms Species pop Community Habitat Eco System biomes biosphere
Individual organisms • The smallest unit that an ecologist will concern
Species • A group of the same organisms living at the same time, same location and capable of breeding and producing fertile young.
Populations • Group of species in a specific area • They may or may not interact with each other • EX: Grade Level, teachers and student, WCL, Montvale, Parents, kids, athletes, non-athletes, girls, boys. All of these population makeup up a community
Communities • A group of all the population interacting with each other.
Ecosystems • A group of habitats, when put together you get an ecosystem
Biosphere • All places on the earth and atmosphere, ocean , caves etc. • Bio means life • Sphere mean earth
Habitat • All of the biotic (living things) interact with the abiotic (non-living things) • Ex: rock, air, soil, water • Living and non-living and how they interact with each other
Abiotic Factors • The non-living thing in the environment • Ex: rock, soil, air, water
Carry Capacity • The maximum population of a species
Limiting Factors • Access to food, water, resources and shelter
Density Dependent • Food, the more people you have, the less food you have • Diseases, parasites all effected by population
Density Independent • Everybody is affect regardless of population. • An example is a natural disaster
Competition between and among Species • Over food, water or shelter • Between the same species they look for food, water and shelter or a mate
Producers 1st tropic • Bottom of the pyramid • First level • Autotrophs • Plants, producers • Uses sunlight • (most energy)
Primary ConsumersSecond Tropic Level • The second tropic level • Primary consumers • Mouse, Herbivores • Ex: cows, deer, (mice) • 100 calories • 90% • (Mainly used for plant)
Secondary ConsumersThird Tropic Level • Heterotroph (snakes) • Carnivore or Omnivore • Ex: Humans • Eats the primary consumer • 10% energy • Lose 90% energy
Tertiary ConsumerFourth Tropic Level • The top of the food pyramid • 1% energy • Consumes primary consumers thing below them • Eat least amount energy • Ex: People are on top
Quandary ConsumerFifth Tropic Level • Rarely, do you get a fourth level consumer • The reason why is because too little energy to supply them • ONLY .1% energy • (Way too little)
Flow of Energy in a Tropic Level (arrows, Loss of energy) • Slowly as you descend, the amount of food required gets larger and larger • Due too little energy • Impossible to supply if there are large quantities at the top pyramid
Pyramid vs Web,Types of Pyramids • A pyramid may talks about different types od animals or plants or one type • A food web talks about many types of organisms • A food chain is only one specific progression to top level
Decomposer • An organisms that breaks down dead animals (recycles them) the material is recycled into environment • Ex; Worms, flies, mushrooms
Autotroph (photosynthesis) • An organism that is able of making its own food • Ex: Plants • The formula for photosynthesis • Carbon dioxide+ water+ sunlight= Glucose+ Oxygen
Heterotroph • An organisms that can’t make it its own food • It gets its nutrients from other sources • Ex: Human, Animals, Mushrooms
Herbivore • An Organisms that only consumes plants • Ex: Cow, sheep
Carnivore • An organisms that consumes meat • Ex: Cat, Dog, Tiger
Omnivore • An organisms that consumes both plant and meat • Ex: Raccoons, mice, humans
Saprobe • Forms of decomposers like bacteria. • They help recycle the material back into in environment • Ex: Bacteria
Scavenger • They eat dead things (Leftovers) • Ex: Vultures, Hyenas, Rats
Symbiosis • The way two or more organisms interact with each other YUMMY!
Competition • Competition between species and among species
Mutualism • An equal relationship • Both organisms benefit from it, neither organisms is harmed • EX: Tickbirds and rhinos, the bird sits on the rhino and eats ticks and early warning system.
Parasitism • One animal benefits, but one get harmed • (Host) • Parasites wants to make you sick but not die • Tick and animal • Worms
Predator-Prey • EX: Lion and zebra • The predator the one who hunts • Prey is one that is hunted • The predator lag behind the prey in the number • Then the prey population drops followed by the predator population
Amensalism • One organism benefits and completely destroys and kills the other organisms, all plants around gets killed • Ex: The black walnut • This benefits the black walnut tree, because the walnut is getting more nutrition, and there are no competition for the water or essential nutrients.