Cycles in Food Webs

Cycles in food webs can be divided into two main classes: feeding cycles and nonfeeding cycles. The former involve species and their feeding relations (e.g., species A eats species B; species B eats species A); cannibalism is a simple kind of feeding cycle. The latter are typical of food webs that comprise detritus compartments and nutrient pools: organic matter is recycled in the system via mineralization, creating a huge number of detritus-mediated cycles.

Feeding cycles are rare in published food webs. This is mainly due to the fact that the resolution of food webs is usually at the species/group of species level. The number of feeding cycles becomes more significant when age-structured populations are considered, especially in aquatic food webs. Nonfeeding cycles, on the other hand, are extremely abundant in published networks, being several billion cycles for highly resolved ecosystem models.

Was this article helpful?

0 0
Project Earth Conservation

Project Earth Conservation

Get All The Support And Guidance You Need To Be A Success At Helping Save The Earth. This Book Is One Of The Most Valuable Resources In The World When It Comes To How To Recycle to Create a Better Future for Our Children.

Get My Free Ebook

Post a comment