Skip to main content

Return to alphabetical list of titles

user warning: Table './drupal_ealit_125/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'fedora_repository', 'Error generating breadcrumbs for %pid. Verify there exists relationships back up to %root. (May also be due to a hierarchy deeper than %max_depth).', 'a:3:{s:4:\"%pid\";s:14:\"islandora:root\";s:5:\"%root\";s:16:\"ealit:collection\";s:10:\"%max_depth\";i:10;}', 4, '', 'http://ea-lit.freshwaterlife.org/eagreylit.local/archive/vocabpref:20523', '', '172.16.0.130', 1653690100) in /var/www/html/modules/dblog/dblog.module on line 146.

Vocabulary Term Details

Trophic levels

Definition (https://en.wikipedia.org/wiki/Trophic_levels)

The trophic level of an organism is the position it occupies in a food chain. The word trophic derives from the Greek word trophe referring to food or feeding. A food chain represents a succession of organisms that eat another organism and are, in turn, eaten themselves. The number of steps an organism is from the start of the chain is a measure of its trophic level. Food chains start at trophic level 1 with primary producers such as plants, move to herbivores at level 2, predators at level 3 and typically finish with carnivores or apex predators at level 4 or 5. The path along the chain can form either a one-way flow or a food "web". Ecological communities with higher biodiversity form more complex trophic paths. (Wikipedia)

Preferred Units: N/A

Scope Note:
N/A

Broader TermsNarrower TermsRelated Terms
Food chains
N/ABiological production
Feeding habits
Saprophytism

This term is used for the following terms: 
Energy levels

Approved Date
01-Aug-2013

Items having a keyword or observed-property relationship to this subject term

Click here to give feedback on this term or suggest an update.