( 2005 ) Food webs in lakes – seasonal dynamics and the impact of climate variability . Aquatic Food Webs: An Ecosystem Approach (eds A.Belgrano , U.Scharler , J.Dunne & B.Ulanowicz ), pp. 41 – 50 . Oxford University Press, Oxford, UK....
We demonstrate the conceptual framework through a synthesis of food‐web structure and ecosystem function in the Laurentian Great Lakes, with emphasis on the upper trophic levels (i.e., fishes). Our synthesis showed evidence of notable adaptive capacity. For example, fishes increased benthic ...
This work has been extended to identify the characteristics of species (for example, their position in the food web) that, if removed, accelerate ecosystem collapse7,8,9, and also species that, if removed, might limit further extinction cascades10. The most obvious interpretation of these ...
A formal means of dealing with the flow of energy and matter in food webs was ushered in with the advent of systems ecology, and since then the food web approach has been adopted to analyze interrelationships among community structure, stability, and ecosystem processes. Currently, there are ...
To conclude, we discuss the general implications of changing food webs for ecosystem structure and sustainability in a rapidly changing world. Results Biological assumptions and the food web model. Our general conjecture is that constraints (for example, physiological and morphological) often mediate ...
in more open areas. Lentic food webs receive most of their nutrition from algae, though aquatic vascular plants contribute to the web mostly as detritus. The kinds of invertebrates common in a given portion of a wetland, lake, or stream reflect in part the diversity and amount of food availa...
regulates the numbers of moose, and therefore the productivity of plant food favored by moose, such as willows. "Up control" is a web regulated mainly by the primary production rates. For example, the amounts of algae in an aquatic ecosystem affects the number of herbivorous fish in that ...
Food Web Diagram Reduces activity 50% during the heat of midday P C D DesertFoodChainsFoodchains allow us to examine the basics of how energy passes through an ecosystem. Producer | Consumer | Predator | Afoodchain is sequence of plants‚ herbivores and carnivores‚ through which energy and...
between channels and their upland watersheds, and or coastal marine environments. We conclude by considering how a few of the pervasive human impacts on watersheds and altered hydrology in Mediterranean rivers affect food webs and the biota and ecosystem services they sustain....
water temperature and terrestrially-derived dissolved organic matter supply (tDOM; i.e., lake browning), and the interaction of both, will influence MeHg and PUFA in organisms at the base of food webs (i.e. seston; the most edible plankton size for zooplankton) in subalpine lake ecosystems....