. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Predator and relative consumption of prey (PI, P2, P3) Prey 1 p- // and relative ^ predation (P) Prey 2 ^ Prey 3 Distance Figure 37-16. Schematic presentation of the predation by one predator on three prey items with different spatial distributions (presented as a section). processes (, changes in space and time). Some of the response types are as follows: when the predator biomass decreases (, because of outmigration), local prey increases in abundemce (
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Predator and relative consumption of prey (PI, P2, P3) Prey 1 p- // and relative ^ predation (P) Prey 2 ^ Prey 3 Distance Figure 37-16. Schematic presentation of the predation by one predator on three prey items with different spatial distributions (presented as a section). processes (, changes in space and time). Some of the response types are as follows: when the predator biomass decreases (, because of outmigration), local prey increases in abundemce (type A), and when predator biomass increases, prey decreases (type B). When the secondary prey is predator to primary prey (, secondary prey is competitor to primary preda- tor), the predator biomass decreases (types C and F). Type D Prey Predator Predator Prey . Prey 2 (predator to prey 1) Predator Prey 1 Time - Predator dynamic, prey stationary Prey dynamic, predator stationary Figure 37-17. Types of responses to biomass changes in predator-prey controlled Prey (as competitor) Predator If the prey is mobile and decreases (, by outmigra- tion), the predator biomass might decrease as well (, because of starvation or forced outmigration in search of food) (type D) and vice versa (type E). The percent of mean monthly zooplankton stand- ing stock consumed per month in the eastern Bering Sea is given in Fig. 37-18. Zooplankton and benthos are the main food resource buffers in the marine ecosystem. The monthly mean zooplankton standing crop was simulated in the model, using quantitative knowledge of its past abundance and seasonal changes. The simulated zooplankton standing stock was made to vary spatially and temporally between 400 and 800 mg/m^. The areas of high zooplankton consumption changed from month to month as affected by the distribution of consumers. This spatial and temporal change of high consumption would allow replenishment by growth and advect
Size: 1671px × 1495px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionamericana, bookdecade1980, bookspo
