1 / 5

Measuring Populations

Measuring Populations. Holt Bacc Vans. Direct Observation. Counting all the members of the Population Example: Counting all the ants on the Aunt hill!. Indirect Observation. To observe signs of an organism Exam ple : Counting elephan ts with out any being around!. Sampling.

rhett
Télécharger la présentation

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 Holt Bacc Vans

  2. Direct Observation • Counting all the members of the Population • Example: Counting all the ants on the Aunt hill!

  3. Indirect Observation • To observe signs of an organism • Example: Countingelephants with out any being around!

  4. Sampling • Estimate the number on reasonable assumptions. • Example: Counted trees and then compared them to all the other trees!!

  5. Mark-And-Recapture • Using a mathematical formula to determine the population of an animal. • Example: When you mark an animal and let it free. Catch them and see which ones are marked.

More Related