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Presentation transcript:

Welcome Back Future Scientists!

Part I- Introduction! GET OUT YOUR BRAINPOP SHEETS AND ECOLOGY GO NOTES!

Who studies Ecology? Ecologist The study of organisms and their environment.

Biotic Factors Living (bio=life) Example- Plants, animals, predators. Abiotic Factors Non-living (“a”- opposite) Example- Sun, dirt temperature.

5 Levels of Ecology 5 1. Organism 2. Population 3. Community 4. Ecosystem 5. Biosphere

1. Organism 1 living thing. Example- 1 giraffe

2. Population 2 or more of the same species Example- 2 or more giraffes

3. Community 2 or more different species, living Example- Zebras, giraffes and trees

4. Ecosystem Living and nonliving Examples- zebra, giraffes, tree, sun, water, dirt.

5. Biosphere Can support life Example: sphere- circle bio- life Earth!

BrainPop! Ecosystems!!

INTERACTIONS IN ECOLOGY

1. COMPETITION HABITAT WHERE IT LIVES EXAMPLE? IN A TREE NICHE WHAT IT DOES (IT’S JOB) EXAMPLE? COLLECT ACORNS

What reduces Competition? By having organisms with different niches

2. PREDATOR/PREY PREDATOR EATS Example? PREY GETS EATEN Example?

Prey/Predator Cycle PREY  PRED  PREY PRED WHY? (GETTING EATEN) (NO FOOD) WHY? (NO EATERS) (HAVE LOTS OF FOOD!)

CYCLIC REPRESENTATION OF PREY/PREDATOR RELATIONSHIP

The cycle is: Density Dependent Depends on the size of the population

3. SYMBIOSIS Close and often long-term interactions between different species. THREE different types of symbiotic relationships.

BrainPop! Symbiosis

MUTUALISM BOTH ORGANISMS BENEFIT EVERYONE IS HAPPY!!!! Example?

Mutualism Ex. Flowers and their pollinators Honey Guide and Honey Badger Humans and E.coli

COMMENSALISM 1 BENEFITS, 1 IS UNAFFECTED Example?

Commensalism Ex. Barnacles on whales Fish hitching a ride on sharks Clownfish and sea anemone (could be mutualistic) Spiders build their webs on plants

PARASITISM 1 BENEFITS, 1 HARMED  EXAMPLES? **PARASITES MUST HAVE HOSTS- IF THE HOST DIES, SO DO THEY.**

Ticks Fleas Leech Mosquito