{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Concept 58 - Concept 53.3 Disturbance influences species...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Concept 53.3 Disturbance influences species diversity and composition Stability is the tendency of a community to reach and maintain a relatively constant  composition of species despite disturbance. Many communities seem to be characterized by change rather than stability. The  nonequilibrium model  proposes that communities constantly change following a  disturbance. disturbance  is an event that changes a community by removing organisms or altering  resource availability. Storms, fires, floods, droughts, frosts, human activities, or overgrazing can be disturbances. A disturbance can have a beneficial effect on a community. Disturbances can create opportunities for species that have not previously occupied habitat  in a community. Small-scale disturbances can enhance environmental patchiness and thus maintain species  diversity in a community.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern