1 / 10

Humans as a selective force

Humans as a selective force.

krushing
Télécharger la présentation

Humans as a selective force

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. Humans as a selective force In this concurrent session, we will discuss some of the many species that humans act as a selective force on, how human selection occurs on those species, and the evolutionary consequences had on those species. We will then examine in detail how fishing can be a selective force, which will include performing a fishing simulation.

  2. Outline • Discuss massive size of human population and the increasingly large role we play in how the earth functions. • One such role being that of a selective force • Two types of human driven selection • Artificial selection: Humans intentionally select for certain traits (crops, livestock, horses, etc) • Discuss targets of selection, what is needed for evolution to take place, and evolutionary consequences for the different examples • Natural selection: Humans unintentionally select for certain traits, either directly or indirectly through their actions (hunting, fishing, habitat modification, global warming, etc.) • Discuss targets of selection, what is needed for evolution to take place, and evolutionary consequences for the different examples • Specific example with selection on fish personality • Do activity • Discuss activity

  3. Humans as a Selective Force

  4. Humans as a Selective Force

  5. Artificial Selection

  6. Unintentional Selection

  7. Personality in largemouth bass • Largemouth bass vary in personality type • Bold and shy • Why is there variation in personality type? • What maintains variation? • How does fishing impact the personality types observed in a population?

  8. Personality in largemouth bass • Characterizing personality in largemouth bass

  9. Personality in largemouth bass • Largemouth bass population simulation: • Perform simulation • Analyze class data • Answer questions • Class discussion • Feedback

  10. Personality in largemouth bass Graph the percent of each personality type in no fishing lakes and in fishing lakes from after reproduction in generation 1 to after reproduction in generation 5. Any suggestions for improvements to the lesson?

More Related