11 Result(s)
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Marieke M. van Katwijk
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Article
Open AccessCoralline Algal Population Explosion in an Overgrazed Seagrass Meadow: Conditional Outcomes of Intraspecific and Interspecific Interactions
Interactions such as mutualism and facilitation are common in ecosystems established by foundation species; however, their outcomes vary and show conditionality. In a Mexican Caribbean Bay, a seagrass-corallin...
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Article
A dynamic view of seagrass meadows in the wake of successful green turtle conservation
Concerted conservation efforts have led to a remarkable recovery of multiple green turtle (Chelonia mydas) populations worldwide. The voracious feeding of these returning populations is radically transforming tro...
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Article
Open AccessA Mutualism Between Unattached Coralline Algae and Seagrasses Prevents Overgrazing by Sea Turtles
Seagrass meadows are threatened biodiversity hot spots that provide essential ecosystem services. Green sea turtles may overgraze meadows, further enhancing seagrass decline. However, we observed an unexpected...
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Open AccessMimicry of emergent traits amplifies coastal restoration success
Restoration is becoming a vital tool to counteract coastal ecosystem degradation. Modifying transplant designs of habitat-forming organisms from dispersed to clumped can amplify coastal restoration yields as i...
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Ecosystem engineering creates a new path to resilience in plants with contrasting growth strategies
Plant species can be characterized by different growth strategies related to their inherent growth and recovery rates, which shape their responses to stress and disturbance. Ecosystem engineering, however, off...
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Open AccessRecent trend reversal for declining European seagrass meadows
Seagrass meadows, key ecosystems supporting fisheries, carbon sequestration and coastal protection, are globally threatened. In Europe, loss and recovery of seagrasses are reported, but the changes in extent a...
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Article
Open AccessSurviving in Changing Seascapes: Sediment Dynamics as Bottleneck for Long-Term Seagrass Presence
Changes in the seascape often result in altered hydrodynamics that lead to coinciding changes in sediment dynamics. Little is known on how altered sediment dynamics affect long-term seagrass persistence. We st...
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Seagrasses are negatively affected by organic matter loading and Arenicola marina activity in a laboratory experiment
When two ecosystem engineers share the same natural environment, the outcome of their interaction will be unclear if they have contrasting habitat-modifying effects (e.g., sediment stabilization vs. sediment d...
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Open AccessOntogenetic habitat shift, population growth, and burrowing behavior of the Indo-Pacific beach star, Archaster typicus (Echinodermata; Asteroidea)
Archaster typicus, a common sea star in Indo-Pacific regions, has been a target for the ornamental trade, even though little is known about its population biology. Spatial and temporal patterns of abundance and s...
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Open AccessAlternative Stable States Driven by Density-Dependent Toxicity
Many populations are exposed to naturally occurring or synthetic toxicants. An increasing number of studies demonstrate that the toxicity of such compounds is not only dependent on the concentration or load, b...
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Positive Feedbacks in Seagrass Ecosystems: Implications for Success in Conservation and Restoration
Seagrasses are threatened by human activity in many locations around the world. Their decline is often characterized by sudden ecosystem collapse from a vegetated to a bare state. In the 1930s, such a dramatic...
