metadata associated with Smith 2023 file SummaryTempPrecipSoilValues.tab

Site_Code: categorical site code within dataset. 

Site_Name: site name within ACG. 

Lat: latitude of the site captured using a Garmin Rino 610 handheld GPS unit.

long : longitude of the site captured using a Garmin Rino 610 handheld GPS unit.

elevation_exact: elevation of the site (metres above sea level) captured using a Garmin Rino 610 handheld GPS unit.

elevation_category: simplified representation of the exact site’s elevation (metres above sea level) that were captured with a single reading in elevation_exact.

average_max_air_temperature: average daily maximum air temperature derived between 2013 and 2023 using a HOBO RG3M Temperature and Rain Gauge Data Logger or an Onset HOBO UA-001-64 Pendant Temperature Data Logger or an Onset HOBO MX2202 Pendant Wireless Temperature Data Logger that recorded temperature each 15 minutes each day. Datalogger is approximately 4 feet above the ground.

average_avg_air_temperature: average daily average air temperature derived between 2013 and 2023 using a HOBO RG3M Temperature and Rain Gauge Data Logger or an Onset HOBO UA-001-64 Pendant Temperature Data Logger or an Onset HOBO MX2202 Pendant Wireless Temperature Data Logger that recorded temperature each 15 minutes each day. Datalogger is approximately 4 feet above the ground.

average_min_air_temperature: average daily minimum air temperature derived between 2013 and 2023 using a HOBO RG3M Temperature and Rain Gauge Data Logger or an Onset HOBO UA-001-64 Pendant Temperature Data Logger or an Onset HOBO MX2202 Pendant Wireless Temperature Data Logger that recorded temperature each 15 minutes each day. Datalogger is approximately 4 feet above the ground.

average_max_soil_temperature: average daily maximum soil temperature derived between 2021 and 2023 using an Onset HOBO MX2202 Pendant Wireless Temperature Data Logger that recorded temperature each 15 minutes each day. Datalogger is buried approximately 10-15cm below the surface.

average_avg_soil_temperature: average daily average soil temperature derived between 2021 and 2023 using an Onset HOBO MX2202 Pendant Wireless Temperature Data Logger that recorded temperature each 15 minutes each day. Datalogger is buried approximately 10-15cm below the surface.

average_min_soil_temperature: average daily minimum soil temperature derived between 2021 and 2023 using an Onset HOBO MX2202 Pendant Wireless Temperature Data Logger that recorded temperature each 15 minutes each day. Datalogger is buried approximately 10-15cm below the surface.

water_content: Soil measurements of electrical conductivity were taken with a HH2 Moisture Meter Wet Sensor (Wet-2) (Delta T Devices, Cambridge, England) that measured soil temperature, soil moisture content and conductivity.  At each elevational site, field readings were recorded by inserting the probe 6.5 cm into the ground at 10-30 haphazardly selected locations. 

Years_measured_Precip_Variables_2013-23: yearly periods within which RG3M tipping bucket measurements were captured.

Mean_Yearly_Precip_ml: Total yearly precipitation averaged over the yearly period when the RG3M tipping bucket measurements were captured.

sd_Mean_Yearly_Precip_ml: Standard deviation of the average yearly precipitation calculated over the yearly period when the RG3M tipping bucket measurements were captured.

se_Mean_Yearly_Precip_ml: Standard error of the average yearly precipitation calculated over the yearly period when the RG3M tipping bucket measurements were captured.

Mean_Proportion_of_Year_with_no_precip: Average proportion of the year when the RG3M tipping bucket recorded no precipitation (# of zero days divided by the number of days RG3M working for that year)

sd_Mean_Proportion_of_Year_with_no_precip: Standard deviation of the proportion of the year when the RG3M tipping bucket recorded no precipitation (# of zero days divided by the number of days RG3M working for that year)

se_Mean_Proportion_of_Year_with_no_precip: Standard error of the proportion of the year when the RG3M tipping bucket recorded no precipitation (# of zero days divided by the number of days RG3M working for that year)

Area: To calculate the surface area (km2) of the elevational band associated with each of the eight collection sites, we used topographic data for Costa Rica from the Earth Observing System Data and Information System (EOSDIS; <https://earthdata.nasa.gov/>) and downloaded the digital elevation model (DEM) into ArcGIS (<www.esri.com>). Shape files of all the individual terrestrial protected areas in the ACG are available from <www.acguanacaste.ac.cr/biodesarrollo/sistemas-de-informacion-geografica> and were used here. These projections were then defined and matched to the EOSDIS land data using the spatial reference CR LAMBERT NORTE. We categorized the topographic data into 100 m elevation bands, starting at 0 ± 50–1800 ± 50 m a.s.l. We used categories starting at −50 m to surround the elevation sites that are typically on the 100 m.

EC: Soil measurements of electrical conductivity (EC) were taken with a HH2 Moisture Meter Wet Sensor (Wet-2) (Delta T Devices, Cambridge, England) in February and August 2014. Electrical conductivity measures the salt content of a soil sample based on the conduction of electricity (the greater the salt concentration, the greater the conductivity between the probe electrodes) and is a field-based surrogate measure of salinity (Hardie and Doyle 2012). At each elevational site, field readings were recorded by inserting the probe 6.5 cm into the ground at 10-30 haphazardly selected locations. 

EC_corrected: Soil measurements of electrical conductivity (EC) corrected for temperature were taken with a HH2 Moisture Meter Wet Sensor (Wet-2) (Delta T Devices, Cambridge, England) in February and August 2014. Electrical conductivity measures the salt content of a soil sample based on the conduction of electricity (the greater the salt concentration, the greater the conductivity between the probe electrodes) and is a field-based surrogate measure of salinity (Hardie and Doyle 2012). At each elevational site, field readings were recorded by inserting the probe 6.5 cm into the ground at 10-30 haphazardly selected locations. 

P_ppm: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014 in August 2014. Inorganic elemental analysis was completed at the University of Guelph Laboratory Services by inductively coupled plasma optical emission spectrometry (ICP-OES) for: Calcium, Magnesium, Phosphorous, Potassium, Sodium, Sulphur, and Iron. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Na_ppm: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. Inorganic elemental analysis was completed at the University of Guelph Laboratory Services by inductively coupled plasma optical emission spectrometry (ICP-OES) for: Calcium, Magnesium, Phosphorous, Potassium, Sodium, Sulphur, and Iron. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

K_ppm: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. Inorganic elemental analysis was completed at the University of Guelph Laboratory Services by inductively coupled plasma optical emission spectrometry (ICP-OES) for: Calcium, Magnesium, Phosphorous, Potassium, Sodium, Sulphur, and Iron. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Mg_ppm: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. Inorganic elemental analysis was completed at the University of Guelph Laboratory Services by inductively coupled plasma optical emission spectrometry (ICP-OES) for: Calcium, Magnesium, Phosphorous, Potassium, Sodium, Sulphur, and Iron. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Na_Mg_K_ppm: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. Inorganic elemental analysis was completed at the University of Guelph Laboratory Services by inductively coupled plasma optical emission spectrometry (ICP-OES) for: Calcium, Magnesium, Phosphorous, Potassium, Sodium, Sulphur, and Iron. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Ca_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Mg_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

P_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

K_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Na_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

S_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements 
in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Fe_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Na_Mg_Ca_K_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.

Na_Mg_K_ugg: Soil samples (6.5cm3) were extracted from the surface and used for elemental analysis in August 2014. A second analysis of elements in soil was conducted at SGS Argifood Laboratories (ug/g) by ICP using ammonium acetate extraction for P, K, Mg and Na.