Lesson Starter What are quadrats used for What

Lesson Starter • What are quadrats used for? • What sampling technique would be used to sample small bugs that live up a tree? • What errors may you experience when using a pitfall trap and what can we do to prevent them?

Learning Intention • To consolidate knowledge of sampling techniques • To learn about the different types of competition • To understand why competition occurs

Outside Tasks Collect pitfall trap and complete page 14 of the notes

Competition Collect 3 cards to survive; sit down when you have 3

Competition • Why did everyone not get 3 cards? • Competition: Animals and plants have to compete for limited resources. The best adapted animals or plants will win and survive

Competition • Greater when animals are competing for the SAME resources • The more similar the organism- the greater the competition • Between different species (cow and rabbit) – INTERSPECIFIC • Between the same species – INTRASPECIFIC

Competition • Between organisms when both use same (limited) resource • Animals- food/water/habitat • Red squirrel vs grey squirrel • Plants- light, water, minerals, space • Redwood trees

Think, Pair Share Herbivores that eat a wide range of plants are likely to be more successful than picky eaters-why?

• Plants and animals compete with each other for the things they need. • The organism that is better adapted will win the competition and survive. • The organism that loses will either die or move to another habitat. Animals mainly compete for: • Food • Territory • A mate Plants mainly compete for: • Water/minerals from the soil • Sunlight

Notes • Read the information on page 16 and answer the questions at the bottom of the page