Add to ORKGA new time-dependent continuous model of biomass size spectra is developed. In this model, predation is the single process governing the energy flow in the ecosystem, as it causes both growth and mortality. Predation is size-dependent. The ratio of predator to prey is assumed to be distributed: predators may feed on a range of prey sizes. Under these assumptions, it is proven that linear size spectra are stationary solutions of the model. The slope of this size spectrum is insensitive to the magnitude of processes in the food web, such as the width of prey size distribution, the volume of water searched while foraging or the assimilation efficiency. Exploited fish communities are simulated by adding a size-dependent fishing mortality to the...
1. Widely observed macro-ecological patterns in log abundance vs. log body mass of organisms can be ...
Many marine ecosystems have the remarkable property that the abundance of organisms of a given body ...
Many marine ecosystems have the remarkable property that the abundance of organisms of a given body ...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
Size spectrum models have emerged from 40 years of basic research on how body size determines indivi...
Size spectrum models have emerged from 40 years of basic research on how body size determines indivi...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
<p>The lines show idealized responses of community size spectra to changes in fish abundance. Becaus...
1. Widely observed macro-ecological patterns in log abundance vs. log body mass of organisms can be ...
Many marine ecosystems have the remarkable property that the abundance of organisms of a given body ...
Many marine ecosystems have the remarkable property that the abundance of organisms of a given body ...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
To measure and predict the response of fish communities to exploitation, it is necessary to understa...
Size spectrum models have emerged from 40 years of basic research on how body size determines indivi...
Size spectrum models have emerged from 40 years of basic research on how body size determines indivi...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
The regularity of the community size-spectrum, i.e., the fact that the total ecosystem biomass conta...
<p>The lines show idealized responses of community size spectra to changes in fish abundance. Becaus...
1. Widely observed macro-ecological patterns in log abundance vs. log body mass of organisms can be ...
Many marine ecosystems have the remarkable property that the abundance of organisms of a given body ...
Many marine ecosystems have the remarkable property that the abundance of organisms of a given body ...