Allochtonous input and trophic level heterogeneity: Impact on an aquatic food web

Article Abstract:

The impact of food web complexity in open and closed food webs is explored by using an aquatic model community consisting of two forms of primary producers, phytoplankton and periphyton and two types of consumers. The study has indicated that the explicit handling of the population dynamics of both grazers have shown how a compensatory increase in one primary producer due to increased grazing on another primary creates a negative feedback between consumers, Chydorous sphaericus increased and negatively affected Daphnia pulex.

Sweden, Environmental aspects, Food chains (Ecology), Food chains, Trophic levels

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When are alternative stable states more likely to occur? A reply to T. Fukami and W.G. Lee

Article Abstract:

Many significant misinterpretations in the arguments given by T. Fukami and W.G. Lee have both a weak basis in ecological theory and are also not supported by empirical proofs that show the frequent occurrence of the alternative stable states in natural systems. The theoretical forecasting can help in effective restoration and when disturbance-structured system is more likely to show disastrous phase shift in community structure, restoration ecologists need to treat the systems uniquely.

Science & research, Research, Restoration ecology

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