Chapter 16 & 17 in your Holt Biology textbook Unit 11-Ecology Chapter 16 & 17 in your Holt Biology textbook

Ecology - Study of interactions between organisms and environment Population – same species, living together Community – several populations, living together Ecosystem - abiotic & biotic components of an area

Biotic factors – all of the living things in a habitat Abiotic factors – all of the non-living things in a habitat Soil Water Weather

Habitat – where a population lives Niche – function of a species in its community (its job) What are 4 things must all habitats provide? Come up with 4 on your own Then pair up with someone near you and compare your answers

Energy in an Ecosystem Producers – plants; produce energy by photosynthesis Consumers – eat to obtain energy

Herbivores- Carnivores – Omnivores – Detritivores– Decomposers – The Consumers Herbivores- Carnivores – Omnivores – Detritivores– Decomposers – eat plants eat animals eat plants and animals feed on dead plants and animals (vultures*, worms, bacteria, fungi) breaks down organic matter from dead organisms (bacteria and fungi)

Consumer Map Create a tree map in your journal Under each type of consumer list each characteristic they have ___________ ___________ ___________ ___________ ___________

T. Trimpe 2008 http://sciencespot.net/ Ecology Basics Challenge #1 Habitats T. Trimpe 2008 http://sciencespot.net/

Answer each question. 1. What do we call the place where an organism lives? 2. What four things does a good habitat provide? 3. What are two biotic factors in the habitat of a field mouse? 4. Why do you find different kinds of organisms in different habitats?

The answers are … 1. What do we call the place where an organism lives? 2. What four things does a good habitat provide? 3. What are two biotic factors in the habitat of a field mouse? 4. Why do you find different kinds of organisms in different habitats? Habitat Food, water, shelter, and space Grass or other plants, insects, snakes, gophers, hawks, owls Different organisms need different things to survive. Some organisms can survive in a desert, but others cannot.

Challenge #2 Levels of Organization Ecology Basics Challenge #2 Levels of Organization T. Trimpe 2008 http://sciencespot.net/

Community, Organism, Ecosystem, Population Answer each question. 1. What term refers to all the members of one species in a particular area? 2. What do we call all the different populations that live in an area? 3. What term refers to all the living and nonliving things that interact in an area? 4. Organize these terms from the smallest to the largest. Community, Organism, Ecosystem, Population 5. What do we call a scientist who studies how living things interact with each other and their environment?

The answers are … 1. What term refers to all the members of one species in a particular area? 2. What do we call all the different populations that live in an area? 3. What term refers to all the living and nonliving things that interact in an area? 4. Organize these terms from the smallest to the largest. Community, Organism, Ecosystem, Population 5. What do we call a scientist who studies how living things interact with each other and their environment? Population Community Ecosystem Organism  Population  Community  Ecosystem Ecologist