Sentence examples for average trophic level from inspiring English sources

Individually, secondary productivity of each of the habitats is represented by a food web where each state variable represents a specific taxonomic or trophic group, and average trophic level is explicitly calculated by the model.

Species abundance, community richness but also community specialization and average trophic level can be estimated for each site and each year and further related to the wide range of habitat and landscape characteristics and to agricultural or forestry practices.

Individuals within each group that fed at a higher average trophic level would be expected to exhibit more enrichment for δN and δC [ 34, 35].

The mean trophic level substantially did not change (Table S8).

Ponsard & Arditi [ 25] suggest that there are on average two trophic levels within litter-based invertebrate communities.

The gut isotopes of P. moluccensis, P. signatus and A. triostegus, suggest that they were feeding almost a trophic level lower (average gut δ15N decreased ∼1.5 2.5‰) when discrimination was higher, and conversely for C. viridis when discrimination decreased.

Table 3 Average, standard deviation (SD) of δ13C, δ15N ratios, and trophic level for all consumer taxa at the upstream site (Luoqi) in Three Gorges Reservoir.

Conversely, the Gippsland Lakes population may feed on the prey items sampled in addition to lower trophic level prey that will lower the average δ15N signature received.

Consumer tissue δC reflects an average aggregate isotopic signature of all basal production sources assimilated [ 19], and δN corresponds to variation in trophic level and dietary protein content [ 20].

The trophic level of the fish assemblages at the three study sties ranged from 1.8 to 4.5 with an average of 2.7, 2.5, and 3.0 for the upstream, midstream, and downstream, respectively (Fig. 2).

The position in a food web or food chain that an organism occupies is referred to as its trophic level.