Data from: Balancing food and density-dependence in the spatial distribution of an interference-prone forager

Dokter A, van Loon EE, Rappoldt C, Oosterbeek K, Baptist MJ, Bouten W, Ens BJ

Date Published: February 20, 2017

DOI: http://dx.doi.org/10.5061/dryad.s8n05

 

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Title benthic survey of Cockles and American Razor clams
Downloaded 16 times
Description Benthic survey of Cockles (Cerastoderma edule) and American razor clams (Ensis directus) in the Balgzand area, Wadden Sea, The Netherlands. Aimed at assessing the available food stock for Oystercatchers at a high spatial resolution. Contains over 3000 sampling points on 15 sampling grids of 50 meter resolution. Survey was performed autumn 2011, and repeated in spring 2012.
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Download README.txt (616 bytes)
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Title C code to calculate ideal free distribution for a generalised functional response
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Description This is a library written in the C programming language, for solving the ideal-free distribution for a generalised functional response with exponential interference function. This library can be called from R, to speed up model fits using Bayesian MCMC methods.
Download IFD-R.c (4.59 Kb)
Download README.txt (534 bytes)
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Title DGPS measurements of bathymetric height
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Description DGPS measurements on Balgzand intertidal area, on 20 May 2012. These measurements were performed to verify the accuracy of the bathymetric maps, and to determine the height at which pressure loggers to measure tidal height were deployed in the Balgzand study area.
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Title GPS tracking and accelerometer data of individual Eurasian Oystercatchers foraging in the intertidal
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Description This file contains GPS tracking data and accelerometer data of 10 individually tracked Eurasian Oystercatchers. GPS fixes have been linked to metadata on weather, sun/moon position, bathymetry and tidal information. Covers the period 1 August 2011 - 1 Mar 2012.
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Download GPS.txt.zip (7.407 Mb)
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Title Kriging interpolation estimates of intertidal bivalve densities and biomass
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Description Kriging interpolation estimates for Cockle and Razor clam densities, lengths, and fresh weights, based on benthic survey data of the intertidal food stock of Eurasian Oystercatchers
Download krige.zip (1.670 Mb)
Download README.txt (1.721 Kb)
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Title tidal height measurements based on diving pressure logger data
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Description pressure logger data for four locations in the Balgzand intertidal area, used to measure the local water height in the study area
Download pressureloggers.zip (268.3 Kb)
Download README.txt (1.074 Kb)
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Title R code to fit Oystercatcher distribution models, using MCMC sampling
Downloaded 8 times
Description Contains R code to fit all spatial distribution models for Oystercatchers based on generalised functional responses, using MCMC sampling. Also contains all required benthos, bathymetric and GPS data in the form of R data frames to run the models.
Download README.txt (275 bytes)
Download R_code_data.zip (4.088 Mb)
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Title bathymetric map of Balgzand intertidal area in the Dutch Wadden Sea
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Description Based on the cycle 5 bathymetric map for the Dutch Wadden Sea at 20 meter resolution, prepared by Rijkswaterstaat, Ministry of Infrastructure and the Environment, the Netherlands, with a few improvements and patches.
Download Balgzand2009_patch0308_DGPSCorrected.asc.zip (1.369 Mb)
Download README.txt (563 bytes)
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When using this data, please cite the original publication:

Dokter A, van Loon EE, Rappoldt C, Oosterbeek K, Baptist MJ, Bouten W, Ens BJ (2017) Balancing food and density-dependence in the spatial distribution of an interference-prone forager. Oikos 126(8): 1184–1196. http://dx.doi.org/10.1111/oik.04139

Additionally, please cite the Dryad data package:

Dokter A, van Loon EE, Rappoldt C, Oosterbeek K, Baptist MJ, Bouten W, Ens BJ (2017) Data from: Balancing food and density-dependence in the spatial distribution of an interference-prone forager. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.s8n05
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