Publications

Trophic Dynamics in Turbid and Clearwater Lakes With Special Emphasis on the Role of Zooplankton for Water Clarity. Trophic Structure, Species Richness and Biodiversity in Danish Lakes: Changes Along a Phosphorus Gradient. Changes in Nitrogen Retention in Shallow Eutrophic Lakes Following a Decline in Density of Cyprinids. Top-Down Control in Freshwater Lakes: the Role of Nutrient State, Submerged Macrophytes and Water Depth. Cascading Trophic Interactions in the Littoral Zone: an Enclosure Experiment in Shallow Lake Stigsholm, Denmark. Cascading Trophic Interactions From Fish to Bacteria and Nutrients After Reduced Sewage Loading: an 18-Year Study of a Shallow Hypertrophic Lake. Fish-Induced Changes in Zooplankton Grazing on Phytoplankton and Bacterioplankton: a Long-Term Study in Shallow Hypertrophic Lake Sobygaard. Does the Impact of Nutrients on the Biological Structure and Function of Brackish and Fresh-Water Lakes Differ. Lake and Catchment Management in Denmark. Nutrient Dynamics and Biological Structure in Shallow Fresh- Water and Brackish Lakes - Preface. Colonization of Submerged Macrophytes in Shallow Fish Manipulated Lake Vaeng - Impact of Sediment Composition and Waterfowl Grazing. Colonization and Succession of Submerged Macrophytes in Shallow Lake Vaeng During the 1st 5 Years Following Fish Manipulation. Biomanipulation in Shallow Lakes in the Netherlands: an Evaluation of 18 Case Studies. Effects of Biomanipulation in the Large and Shallow Lake Wolderwijd, the Netherlands. Long-Term Responses to Fish-Stock Reduction in Small Shallow Lakes - Interpretation of 5-Year Results of 4 Biomanipulation Cases in the Netherlands and Denmark. Primary Production in a Shallow Eutrophic Lake Dominated Alternately by Phytoplankton and by Submerged Macrophytes. Fish and Nutrients Interplay Determines Algal Biomass - a Minimal Model. Multiplicity of Stable States in Fresh-Water Systems. Should We Expect Strange Attractors Behind Plankton Dynamics - and if So, Should We Bother. Megaplant - a Simulation-Model of the Dynamics of Submerged Plants. Implications of Spatial Heterogeneity for the Paradox of Enrichment. Distribution and Dynamics of Submerged Vegetation in a Chain of Shallow Eutrophic Lakes. Alternative Equilibria in Shallow Lakes. Minimal Models of Top-Down Control of Phytoplankton. On the Dominance of Filamentous Cyanobacteria in Shallow, Turbid Lakes. Effects of Fish on Plankton Dynamics: a Theoretical Analysis. Seasonal Dynamics of Daphnia and Algae Explained as a Periodically Forced Predator-Prey System. Vegetated Areas With Clear Water in Turbid Shallow Lakes. Impact of Submerged Macrophytes on Fish-Zooplankton- Phytoplankton Interactions - Large-Scale Enclosure Experiments in a Shallow Eutrophic Lake. Is Trophic State or Regional Location the Strongest Determinant for Chl-a/Tp Relationships in Lakes? Pike (Esox Lucius L) Stocking as a Biomanipulation Tool .2. Effects on Lower Trophic Levels in Lake Lyng, Denmark. Interactions Between Sediment and Water in a Shallow and Hypertrophic Lake - a Study on Phytoplankton Collapses in Lake Sobygard, Denmark. Phytoplankton Biomass Reduction After Planktivorous Fish Reduction in a Shallow, Eutrophic Lake - a Combined Effect of Reduced Internal P-Loading and Increased Zooplankton Grazing. The Role of Characean Algae in the Management of Eutrophic Shallow Lakes. Dynamics and Stability of Chara Sp and Potamogeton Pectinatus in a Shallow Lake Changing in Eutrophication Level. Dominance of Charophytes in Eutrophic Shallow Lakes - When Should We Expect It to Be an Alternative Stable State? Biomanipulation in the Netherlands: 15 years of experience. Long-Term Pattern of Alternative Stable States in 2 Shallow Eutrophic Lakes. Long-Term and Short-Term Dynamics of Submerged Macrophytes in 2 Shallow Eutrophic Lakes. Decline of Charophytes During Eutrophication - Comparison With Angiosperms. Changes in a Deep Lake Following Sewage Diversion - a Challenge to the Orthodoxy of External Phosphorus Control as a Restoration Strategy. Differences in the ecology of wet-dug and dry-dug gravel pit lakes. Resuspension in a Shallow Eutrophic Lake. Life After Death in Lake Erie: Nutrient Controls Drive Fish Species Richness, Rehabilitation. The Art of Lake Restoration. Engineering and Biological Approaches to the Restoration From Eutrophication of Shallow Lakes in Which Aquatic Plant- Communities Are Important Components. Restoration of Two Lowland Lakes by Isolation From Nutrient-Rich Water Sources With and Without Removal of Sediment. Development of Daphnid Communities in Diatom-Dominated and Cyanophyte-Dominated Lakes and Their Relevance to Lake Restoration by Biomanipulation. Progressive Restoration of a Shallow Lake: a 12-Year Experiment in Isolation, Sediment Removal and Biomanipulation. The Impact of Grazing Waterfowl on Submerged Macrophytes: in Situ Experiments in a Shallow Eutrophic Lake. Internal Phosphorus Loading in Shallow Danish Lakes. 8 Years of Internal Phosphorus Loading and Changes in the Sediment Phosphorus Profile of Lake Sobygaard, Denmark. Phosphorus Release From Resuspended Sediment in the Shallow and Wind-Exposed Lake Arreso, Denmark. Phosphorus Fractions and Profiles in the Sediment of Shallow Danish Lakes as Related to Phosphorus Load, Sediment Composition and Lake Chemistry. Wave Exposure Related Growth of Epiphyton: Implications for the Distribution of Submerged Macrophytes in Eutrophic Lakes. Managing Nutrient Fluxes and Pollution in the Baltic: an Interdisciplinary Simulation Study. The Relation Between Wave Exposure and Distribution of Emergent Vegetation in a Eutrophic Lake. Mechanisms Regulating Abundance of Submerged Vegetation in Shallow Eutrophic Lakes. Changes in the Aquatic Vegetation of 2 Gravel Pit Lakes After Reducing the Fish Population-Density. Catastrophic Response of Lakes to Benthivorous Fish Introduction. Indirect Effects of Fish Community Structure on Submerged Vegetation in Shallow, Eutrophic Lakes - an Alternative Mechanism. Pike (Esox Lucius L) Stocking as a Biomanipulation Tool .1. Effects on the Fish Population in Lake Lyng, Denmark. Recovery of the Macrozoobenthic Community of the Comacchio Lagoon System (Northern Adriatic Sea). Multiple States in River and Lake Ecosystems. Overview of Hypoxia Around the World. Epilithic Biomass and Metabolism in a North Iberian Stream. The Costs of Eutrophication From Salmon Farming - Implications for Policy. A Long-Term Perspective on the Chrysochromulina Bloom on the Norwegian Skagerrak Coast 1988: a Catastrophe or an Innocent Incident? Changes in the Abundance and Composition of Cyclopoid Copepods Following Fish Manipulation in Eutrophic Lake Vaeng, Denmark. Trophic Web Structure in a Shallow Eutrophic Lake During a Dominance Shift From Phytoplankton to Submerged Macrophytes. Catastrophes, Phase Shifts, and Large-Scale Degradation of a Caribbean Coral Reef. Iron-Phosphorus Ratio in Surface Sediment as an Indicator of Phosphate Release From Aerobic Sediments in Shallow Lakes. Nitrogen Loss and Denitrification as Studied in Relation to Reductions in Nitrogen Loading in a Shallow, Hypertrophic Lake (Lake Sobygard, Denmark). Impact of Nutrients and Physical Factors on the Shift From Cyanobacterial to Chlorophyte Dominance in Shallow Danish Lakes. Can Simple Empirical Equations Describe the Seasonal Dynamics of Bacterioplankton in Lakes: an Eight-Year Study in Shallow Hypertrophic and Biologically Highly Dynamic Lake Sobygard, Denmark. Fish Manipulation as a Lake Restoration Tool in Shallow, Eutrophic, Temperate Lakes .2. Threshold Levels, Long-Term Stability and Conclusions. Fish Manipulation as a Lake Restoration Tool in Shallow, Eutrophic Temperate Lakes .1. Cross-Analysis of 3 Danish Case- Studies. Interactions Between Phytoplankton, Zooplankton and Fish in a Shallow, Hypertrophic Lake - a Study of Phytoplankton Collapses in Lake Sobygard, Denmark. Summer Internal Phosphorus Supplies in Shagawa Lake, Minnesota. Nutrient Dynamics in Shallow Lakes - Effects of Changes in Loading and Role of Sediment-Water Interactions. Relationships Between Fisheries and the Integrity of River Systems. The Baltic: The Sea of Surprises. In: Barriers and bridges to the renewal of ecosystems and institutuins. Uncertainty in Discount Models and Environmental Accounting Eutrophication of aquatic ecosystems: Bistability and soil phosphorus. Eutrophication due to phosphorus recycling in relation to lake morphometry, temperature and macrophytes. Is there evidence of a Great Acceleration in lake eutrophication? Biological diversity and resilience: lessons from the recovery of cichlid species in Lake Victoria Conservation of a transboundary lake: Historical watershed and paleolimnological analyses can inform management strategies Top-Down Control of Cyanobacteria: a Theoretical Analysis. The Uses of Ecology: Lake Washington and Beyond. Holocene Periodicity in North Atlantic Climate and Deep-Ocean Flow South of Iceland. Dutch Sedge Warblers Acrocephalus Schoenobaenus and West- African Rainfall: Empirical Data and Simulation Modelling Show Low Population Resilience in Fragmented Marshlands. Middle Paleozoic Extinction Events - Faunal and Isotopic Data. Steppe-tundra transition: a herbivore-driven biome shift at the end of the pleistocene. Eradication Thresholds in Epidemiology, Conservation Biology and Genetics. Designing a Dry Tortugas Ecological Reserve: How Big Is Big Enough? ... To Do What? Desertification of Subtropical Thicket in the Eastern Cape, South Africa: Are There Alternatives? A Test of the Metapopulation Model of the Species-Area Relationship. The Structural Connectivity Threshold: an Hypothesis in Conservation Biology at the Landscape Scale. Metapopulation Models for Extinction Threshold in Spatially Correlated Landscapes. Implications of the Effects of Trawling on Sessile Megazoobenthos on a Tropical Shelf in Northeastern Australia. The Impact of Pelagic Fish Behavior on Fisheries. On the Freshwater Forcing and Transport of the Atlantic Thermohaline Circulation. Easter Island: Historical Anecdote or Warning for the Future? Alternate Stable States and Threshold Effects in Semi-Arid Grazing Systems. Persistence of 2 Species of Gecko (Oedura-Reticulata and Gehyra-Variegata) in Remnant Habitat. Spatial Heterogeneity and Irreversible Vegetation Change in Semiarid Grazing Systems. Catastrophic vegetation shifts and soil degradation in terrestrial grazing systems. Ecosystem Dynamics and the Sahel Drought. Role of Vegetation Dynamics in Enhancing the Low-Frequency Variability of the Sahel Rainfall. Coexistence and Collapse: an Experimental Investigation of the Persistent Communities of a Protist Species Pool. Extinction and Spatial Structure in Simulation Models. Demographic Stochasticity Does Not Predict Persistence of Gecko Populations. Tree Clearing and Dryland Salinity Hazard in the Upper Burdekin Catchment of North Queensland. A Universal Law of the Characteristic Return Time Near Thresholds. Critical Thresholds in Species Responses to Landscape Structure. Dispersal Success on Fractal Landscapes: a Consequence of Lacunarity Thresholds. Extinction Thresholds for Species in Fractal Landscapes. Threshold Effects of Landscape Structure on Biological Control in Agroecosystems. The Response to Deforestation and Desertification in a Model of West African Monsoons. The Role of Vegetation in the Dynamics of West African Monsoons. The Little Ice Age and Medieval Warm Period in the Sargasso Sea. Hypotheses for the Decline of Cod in the North Atlantic. North Atlantic Deep Water Circulation Collapse During Heinrich Events. Greenhouse Warming and the Eurasian Biota - Are There Any Lessons From the Past. A Pacific Interdecadal Climate Oscillation With Impacts on Salmon Production. The Effect of Aquatic Vegetation on Turbidity; How Important Are the Filter Feeders?