Data from; Acorn caching hotspots of the Eurasian jay in pine plantations: Ecological basis for understory management to assist oak regeneration
Data files
Jul 24, 2026 version files 133.18 KB
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acorns.csv
1.39 KB
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biovolume.csv
98.85 KB
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dispersal_events.csv
8.84 KB
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distance_pines.csv
4.60 KB
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microtop.csv
16.26 KB
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README.md
3.25 KB
Abstract
This repository contains the datasets, provided in CSV format, that support the article "Acorn caching hotspots of the Eurasian jay in pine plantations: ecological basis for understory management to assist oak regeneration". The repository includes five datasets containing: (1) acorn characteristics used in the experiment (dry weight and oak species); (2) recorded dispersal events and their associated site characteristics, including microsite type, predation status, and shrub species and size for acorns cached beneath shrub canopies; (3) the distance from each cached acorn to the nearest pine tree in both dispersal and random plots; and (4) measurements of microsite structure, including shrub type, shrub density, and microtopography, around each caching site and an equivalent number of randomly selected locations. These data allow comparison of observed dispersal events with randomly generated locations representing expected patterns. All datasets are freely available under an open license.
Dataset DOI: 10.5061/dryad.jsxksn0s6
Description of the data and file structure
Data collected from a field seed dispersal study. They contain information about characterized acorns, dispersal events registered by radio-tracking and habitat features such as shrubs, microtopography and pine trees.
Files and variables
File: acorns.csv
Description: File of the acorns characterized for the study.
Variables
- ID: individual identifier.
- sp_quercus: Quercus species assessed.
- dry_weight_g: dry weight of each acorn, measured in grams.
File: dispersal_events.csv
Description: File related of the total dispersal events registered during the experiment.
Variables
- feeder: feeder identifier.
- n_dispersal: dispersal event identifier.
- sp_quercus: Quercus species assessed.
- cached: if the acorn was found cached or predated.
- microtopography: type of microtopography where the specific acorn was found in that observation.
- sp_shrub: type of shrub species where the specific acorn was found in that observation (under the canopy projection).
- d1_cm: diameter 1 of the shrub (in centimeters).
- d2_cm: diameter 2 of the shrub (in centimeters).
- h_cm: height of the shrub (in centimeters).
- distance_feeder_m: distance from the site where the acorn or radiotransmitter was found to the feeder in which it was deposited (in meters).
- altitude_difference_m: difference of altitude between the site where the acorn or radiotransmitter was found to the teeder in which it was deposited (in meters).
File: microtop.csv
Description: File related of the characterization of the microtopography around each feeder in the study site.
Variables
- feeder: feeder identifier.
- n_dispersal: dispersal event identifier.
- plot: if it is a plot measured from a dispersal event or from a random generated point.
- microtopography: types of microtopography.
- perc_microtop: total percentage of each type of microtopography in the plot.
File: biovolume.csv
Description: File related of the characterization of the shrubs around each feeder in the study site.
Variables
- feeder: feeder identifier.
- n_dispersal: dispersal event identifier.
- plot: if it is a plot measured from a dispersal event or from a random generated point.
- sp_shrub: identity of each shrub species and every individual recorded in each sampling plot.
- d1_cm: diameter 1 of the shrub (in centimeters).
- d2_cm: diameter 2 of the shrub (in centimeters).
- h_cm: height of the shrub (in centimeters).
File: distance_pines.csv
Description: File related of the characterization of the shrubs around each feeder in the study site.
Variables
- feeder: feeder identifier.
- n_dispersal: dispersal event identifier.
- plot: if it is a plot measured from a dispersal event or from a random generated point.
- distance_pine_m: distance of each caching site to the nearest pine tree (in meters).
Code/software
Data were processed with QuantumGIS (QGIS) v.3.22.12 and R v4.4.2.