Warm up Make a SMART seat choice 2. Turn in your lab 3. Throw all science papers away 4. Get your new packet 5. Get a dissection letter 6. Update due dates from packet in your assignment book

What is Ecology?

Ecology is the science of how living things interact with their environment and other living things

Biotic factors are living things Abiotic factors are nonliving things

Abiotic or Biotic? Rain Temperature Rabbits Grasshoppers Grass People Oxygen Rocks Sunlight Bacteria Mushrooms Dead leaves Dead insects

We will take a quick field trip outside You MUST make a list of 7 biotic and 7 abiotic factors in our Holicong Ecosystem They should be sketched The items on the back of the field trip paper should be started

Warm up Things like oxygen and sunlight are called a. Biotic factorsb. Abiotic factorsc. Ecology 2. All the living things in an ecosystem are the a. Biotic factorsb. Abiotic factorsc. Ecology 3. The study of the interaction between living things and their environment is called a. Biotic factorsb. Abiotic factorsc. Ecology

There are several levels of organization in an environment...

Read the following: Softcover text: pages 2-4 Hardcover text: pages 4-7

Use the textbooks on your table to list and define the following: Organism Population Community Ecosystem Biome Biosphere

Organism-a single living thing Population-a group of the same species in the same area Community-all the populations in an area that interact Ecosystem-all the biotic and abiotic factors in an area Biome-similar ecosystems with similar factors Biosphere-all the parts of Earth where life can be found

Populations are groups of individuals of the same species in an area Population size and growth can be used to measure the health of an ecosystem

Most populations grow slowly in the beginning and then grow faster as they get larger

Carrying Capacity is the largest population an ecosystem can support without harming the ecosystem

Warm up- a. Organismb. Populationc. Community d. Ecosysteme. Biome 4. The area outside Holicong 5. A blade of grass 6. All the living things that live in this classroom 7. The deciduous forest 8. A school of fish 9. List the levels of organization from larges to smallest.

Define carrying capacity. On what day did the population in the graph reach its carrying capacity? What is the carrying capacity for these organisms? Explain why the graph below looks sort of like a stretched out S.

Random Sampling of a Sunflower Population Complete the sampling activity Work on the questions estimated pop=avg of counted boxes x total boxes

Warm up 9. The _______________ is the largest population an ecosystem can safely support. a. Population sizeb. Ecosystem levelc. Carrying capacity 10. Just before a population reaches its carrying capacity, its growth is a. Slowb. Fastc. It depends 11. On a population growth curve, the beginning growth is usually a. Slowb. Fastc. It depends

Article Analysis Assignment

Within ecosystems, populations interact in different ways

Read the following: Hardcover pages Softcover pages 8-13 Define the following relationships: Predator-prey Competition Symbiosis mutualism parasitism commensalism

Complete the Organism Interactions Page Then...work on your ecology article analysis! (or your choice items if necessary)