Skip to main content

Debenham level

Debenham level A simple device for measuring the vertical distance between two points; it consists of a clear container (e.g. a plastic can), a piece of clear plastic tubing about 10 m long, wire to attach the tubing to the container, and a clip. The container is filled with water and one end of the tubing inserted almost to the bottom and fixed to the mouth. Water is siphoned into the tubing to within about 50 cm of its further end and that end is sealed with the clip. The tubing is extended downslope over the surface, its end raised until the water level in the tubing is higher than that in the container, and the clip is removed, allowing the water level in the tubing to fall to that in the container. The difference in the height above the surface of the water levels in the tubing and the container represents the vertical distance between the two sites. The method was devised by the biologist C. Wood-Robinson and first described in 1981.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Debenham level." A Dictionary of Ecology. . 20 Apr. 2019 <>.

"Debenham level." A Dictionary of Ecology. . (April 20, 2019).

"Debenham level." A Dictionary of Ecology. . Retrieved April 20, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.