1 / 5

Measuring populations

Measuring populations . Dele,phap,achj. Direct observation . Definition: counting it one by one I looked at my garden, and counted all the flowers. Indirect Observation. Definition : Take one thing and another and see how many can fit in it then multiply by how many you see.

kane
Download Presentation

Measuring populations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Measuring populations Dele,phap,achj

  2. Direct observation • Definition: counting it one by one • I looked at my garden, and counted all the flowers.

  3. Indirect Observation • Definition: Take one thing and another and see how many can fit in it then multiply by how many you see. • Three jars and each can fit 21 fireflies there are 63 fireflies all together.

  4. Sampling • Definition: Look at it estimate then multiply it with a larger area. • I count 20 flowers to make one square in my garden, four parts. How many flowers? About 80.

  5. Mark and Recapture • Definition: Another way of estimating and you mark what you already counted. • I look at my garden and peel a petal off each one I counted so I don’t get it mixed up as a new one grows.

More Related