Search results for: Martin J. Baptist

Items from 1 to 10 out of 10 results

article

Balancing food and density‐dependence in the spatial distribution of an interference‐prone forager

Adriaan M. Dokter, E. Emiel van Loon, Cornelis Rappoldt, Kees Oosterbeek, more

Oikos > 126 > 8 > 1184 - 1196

Foraging distributions are thought to be density‐dependent, because animals not only select for a high availability and quality of resources, but also avoid conspecific interference. Since these processes are confounded, their relative importance in shaping foraging distributions remains poorly understood. Here we aimed to rank the contribution of density‐dependent and density‐independent effects...

article

Habitat selection of juvenile sole (Solea solea L.): Consequences for shoreface nourishment

Marjolein H.M. Post, Ewout Blom, Chun Chen, Loes J. Bolle, more

Journal of Sea Research > 2017 > 122 > C > 19-24

The shallow coastal zone is an essential nursery habitat for juvenile flatfish species such as sole (Solea solea L.). The increased frequency of shoreface nourishments along the coast is likely to affect this nursery function by altering important habitat conditions, including sediment grain size. Sediment preference of juvenile sole (41–91mm) was studied in a circular preference chamber in order...

chapter

B

Miles O. Hayes, Eric Bird, Brian Greenwood, Karl F. Nordstrom, more

Encyclopedia of Earth Sciences Series > Encyclopedia of Coastal Science > 117-215

article

Contrasting biogeomorphic processes affecting salt‐marsh development of the Mokbaai, Texel, The Netherlands

Martin J. Baptist, Alma V. Groot, Willem E. Duin

Earth Surface Processes and Landforms > 41 > 9 > 1241 - 1249

The growth and decline of salt marshes may be the result of various interacting biogeomorphic processes and external factors. We present a case study of the Mokbaai on the Wadden island of Texel, where we assess the relative importance and the interaction between the biogeomorphic processes and various disturbances. We analysed changes in vegetation composition in the salt marsh and sedimentation–erosion...

article

Ecosystem-based design rules for marine sand extraction sites

Maarten F. de Jong, Bas W. Borsje, Martin J. Baptist, Jan Tjalling van der Wal, more

Ecological Engineering > 2016 > 87 > C > 271-280

The demand for marine sand in the Netherlands as well as globally is increasing. Over the last decades, only shallow sand extraction of 2m below the seabed was allowed on the Dutch Continental Shelf (DCS). To guarantee sufficient supply and to decrease the surface area of direct impact, the Dutch authorities started to promote sand extraction depths over 2m for sand volumes over 10 millionm³. The...

article

Short-term impact of deep sand extraction and ecosystem-based landscaping on macrozoobenthos and sediment characteristics

Maarten F. de Jong, Martin J. Baptist, Han J. Lindeboom, Piet Hoekstra

Marine Pollution Bulletin > 2015 > 97 > 1-2 > 294-308

We studied short-term changes in macrozoobenthos in a 20m deep borrow pit. A boxcorer was used to sample macrobenthic infauna and a bottom sledge was used to sample macrobenthic epifauna. Sediment characteristics were determined from the boxcore samples, bed shear stress and near-bed salinity were estimated with a hydrodynamic model. Two years after the cessation of sand extraction, macrozoobenthic...

article

Sustainable hydraulic engineering through building with nature

Huib J. de Vriend, Mark van Koningsveld, Stefan G.J. Aarninkhof, Mindert B. de Vries, more

Journal of Hydro-environment Research > 2015 > 9 > 2 > 159-171

Hydraulic engineering infrastructures are of concern to many people and are likely to interfere with the environment. Moreover, they are supposed to keep on functioning for many years. In times of rapid societal and environmental change this implies that sustainability and adaptability are important attributes. These are central to Building with Nature (BwN), an innovative approach to hydraulic engineering...

article

Impact on demersal fish of a large-scale and deep sand extraction site with ecosystem-based landscaped sandbars

Maarten F. de Jong, Martin J. Baptist, Ralf van Hal, Ingeborg J. de Boois, more

Estuarine, Coastal and Shelf Science > 2014 > 146 > Complete > 83-94

For the seaward harbour extension of the Port of Rotterdam in the Netherlands, approximately 220 million m ³ sand was extracted between 2009 and 2013. In order to decrease the surface area of direct impact, the authorities permitted deep sand extraction, down to 20 m below the seabed. Biological and physical impacts of large-scale and deep sand extraction are still being investigated and largely...

article

Prey capture success of Sandwich Terns Sterna sandvicensis varies non‐linearly with water transparency

MARTIN J. BAPTIST, MARDIK F. LEOPOLD

Ibis > 152 > 4 > 815 - 825

Human impacts on water transparency may affect plunge‐diving seabirds. We studied prey capture success of Sandwich Terns Sterna sandvicensis as a function of six environmental variables during the breeding season. We observed diving terns in the south eastern North Sea and found a non‐linear optimum curve for the relationship between Secchi transparency and prey capture probability. High capture probability...

article

The distribution of macrozoobenthos in the southern North Sea in relation to meso-scale bedforms

Martin J. Baptist, Jan van Dalfsen, Anke Weber, Sandra Passchier, more

Estuarine, Coastal and Shelf Science > 2006 > 68 > 3-4 > 538-546

This study investigates the distribution of macrozoobenthos in relation to meso-scale bedforms in the southern North Sea. Three sites on the Dutch Continental Shelf were sampled that are representative of large areas of the North Sea and show diverse morphological settings. These sites are (i) part of a shoreface-connected ridge, (ii) the lower part of a concave shoreface and (iii) a sandwave area...

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Search results for: Martin J. Baptist

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