First, our results reinforce the idea that "food chain" omnivory
(consumers feeding on more than one trophic level, like seastars feeding on mussels and whelks; Fig.
At the very least, it is important to investigate whether the dissipation effect would still occur in judgments about a more complex food web, such as one with marked omnivory
(Pimm, 1982) and this is also a goal for future research.
can be a substantial advantage for invasive species; even if the rate of mass increase is modest, the numerous potential food sources should allow young snails to survive for long periods of time, perhaps until a more favorable food resource germinates or otherwise becomes available.
Sea urchins are often described as herbivorous, but omnivory
seems to be the most common feeding habit.
Liolaemus occipitalis is another example of omnivory
in small-sized lizards.
Feeding behavior was described by the Omnivory
Index (OI); it was calculated as the variance of the trophic levels of a consumer's preys (Christensen & Pauly 1992).
Based on this characterisation of omnivory
, it must be emphasised that these crabs would cross the trophic relationships, thus promoting the stability and complexity of the system (Diehl, 2003; Eubanks et al.
niloticus can be attributed to its high reproductive efficiency, omnivory
, parental care of its young, and wide environmental tolerance (LOWE-MCCONNELL, 2000; PETERSON et al.
has been suggested to be one key factor resulting in success of mammals in cities and suburbs (Garber, 1987).
Trophic levels and trophic tangles: the prevalence of omnivory
in real food webs.
Temporal and spatial variation of ant omnivory
in pine forests.
No evidence of strict granivory by small mammals has been found in Australian, South African or South American deserts, where the most frequent dietary strategies are omnivory
, insectivory and herbivory (e.