Dessa är ordets examples relaterade till trophic-level. Klicka på valfritt ord för att gå till dess ords detaljsida. Eller, gå till definitionen av trophic-level.
On feeding on more than one trophic level.
Dotted lines indicate estimated trophic levels, assuming a trophic level fractionation of 3.4 units.
An additional trophic level might include birds, which prey on snakes, but these were not sampled in this study.
However, an additional trophic level may exist which includes medium-sized mammals preying on snakes.
However, these studies did not measure the effects of nitrogen on the third trophic level, the parasitoid.
The distribution of spiders may be less affected by the distribution of plant species, because they are one trophic level further away from the defence chemicals of plants.
This is crucial because the effects of these resistance factors are also likely to be manifested in the third trophic level, that is, on natural enemies.
The aim of the present study is to quantify levels of diversification of an endemic snail fauna that represents one of the major components of the metazoan consumer trophic level.
Because of its trophic level position, the golden topminow also has a wide array of predators that feed on smaller, surface feeding vertebrates.
However, determining the trophic level of some plankton is not straightforward.
The article establishes the importance of the mean trophic level of fisheries as a tool for measuring the health of ocean ecosystems.
The biodiversity of the phytoplankton is poor and its biomass is low, thus the lake's trophic level ranges from oligotrophic to mesotrophic.
There is also pyramid of numbers which represent the number of organisms in each trophic level.
For example, all birds have beaks and skeletons, which despite having mass are not eaten by the next trophic level.
Since animals are higher on the trophic level, they are less efficient sources of food energy.
