https://doi.org/10.5061/dryad.v15dv422v

Description of the data and file structure

File list

·       Nikolic_et_al_2023_CO2_curve_data_Lange_2002.csv

·       Nikolic_et_al_2023_Light_curve_data_Lange_2004.csv

·       Nikolic_et_al_2023_Tempetarure_curve_data_Lange_2004.csv

·       Nikolic_et_al_2023_Tempetarure_dark_respiration_curve_data_Lange_2004.csv

·       Nikolic_et_al_2023_Water_curve_data_Lange_2004.csv

·       Nikolic_et_al_2023_Water_dark_respiration_curves_data_Lange_2002.csv

·       Nikolic_et_al_2023_Microclimatic_input_data_17-Sept-01-Oct-1993_Lange_2004.csv

·       Nikolic_et_al_2023_Parameters_for_the_model_P_aurata_and_L_muralis.csv

·       Nikolic_et_al_2023_Microclimatic_input_data_17-24-Sep-93.csv

·       Nikolic_et_al_2023_ Microclimatic_input_data_24-Sep-1-Oct-93.csv

 ·       Nikolic_et_al_2023_Getting_parameters_from_response_curves.R

·       Nikolic_et_al_2023_PoiCarb_model.R

File descriptions

Nikolic_et_al_2023_CO2_curve_data_Lange_2002.csv

Data of measured responses of CO2-exchange rates to different CO2 levels. Gas-exchange measurements were made on the lichen Protoparmeliopsis muralis (Lange, 2002). We did not have access to the original data, so we used WebPlotDigitizer to extract data points from the published data visualizations.

Explanation for each column in the file:

CO2abs – CO2 concentration in ppm

A – The instantaneous gas-exchange rate in nmolg-1s-1

Nikolic_et_al_2023_Light_curve_data_Lange_2004.csv

Data of measured responses of CO2-exchange rates (net photosynthesis and dark respiration) to different light (PAR) levels. Gas-exchange measurements were made on the broad-lobed lichen *Crocodia aurata *from a montane rainforest (at ca 1200 m a.s.l) in Panama (Lange et al., 2004). We did not have access to original data, so we used WebPlotDigitizer to extract data points from the published data visualizations.

Explanation for each column in the file:

      PAR - Photosynthetic Active Radiation expressed in µmol m-2 s-1

A – The instantaneous gas-exchange rate in nmolg-1s-1

Nikolic_et_al_2023_Tempetarure_curve_data_Lange_2004.csv

Data of measured responses of CO2-exchange rates (net photosynthesis and dark respiration) to different temperature levels. Gas-exchange measurements were made on the broad-lobed lichen *Crocodia aurata *from a montane rainforest (at ca 1200 m a.s.l) in Panama (Lange et al., 2004). We did not have access to the original data, so we used WebPlotDigitizer to extract data points from the published data visualizations.

Explanation for each column in the file:

Tcuv - Temperature in Celsius degrees measured

A – The instantaneous gas-exchange rate in nmolg-1s-1

Nikolic_et_al_2023_Tempetarure_dark_respiration_curve_data_Lange_2004.csv

Data of measured responses of CO2-exchange rates (dark respiration) to different temperature levels. Gas-exchange measurements were made on the broad-lobed lichen *Crocodia aurata *from a montane rainforest (at ca 1200 m a.s.l) in Panama (Lange et al., 2004). We did not have access to the original data, so we used WebPlotDigitizer to extract data points from the published data visualizations.

Explanation for each column in the file:

Tcuv - Temperature in Celsius degrees measured

A – The instantaneous gas-exchange rate in nmolg-1s-1

Nikolic_et_al_2023_Water_curve_data_Lange_2004.csv

Data of measured responses of CO2-exchange rates to changes in lichen water content. Gas-exchange measurements were made on the broad-lobed lichen *Crocodia aurata *from a montane rainforest (at ca 1200 m a.s.l) in Panama (Lange et al., 2004). We did not have access to the original data, so we used WebPlotDigitizer to extract data points from the published data visualizations.

Explanation for each column in the file:

WC - Relative Water content expressed in % of the dry mass

A – The instantaneous gas-exchange rate in nmolg-1s-1

Nikolic_et_al_2023_Water_dark_respiration_curves_data_Lange_2002.csv

Data of measured responses of CO2-exchange rates (dark respiration) to changes in lichen water content. Gas-exchange measurements were made on the lichen Protoparmeliopsis muralis (Lange, 2002). We did not have access to the original data, so we used WebPlotDigitizer to extract data points from the published data visualizations.

Explanation for each column in the file:

WC - Relative Water content expressed in % of the dry mass

A – The instantaneous gas-exchange rate in µmol m-2 s-1     

Nikolic_et_al_2023_Microclimatic_input_data_17-Sept-01-Oct-1993_Lange_2004.csv

Microclimatic data together with gas-exchange measurements data which we used for model validation and also to run the climate change experiments examples. There are data for 15 days of in situ gas-exchange measurements on the broad-lobed lichen *Crocodia aurata *from a montane rainforest (at ca 1200 m a.s.l) in Panama (Lange et al., 2004) together with the following climatic factors: air temperature, PAR, and lichen water content, determined at the same time as the CO2-exchange measurements. We did not have access to the original data, so we used WebPlotDigitizer to extract data points from the published data visualizations.

Explanation for each column in the file:

Datum – date of each record in the form: 17-Sep-93

time – date and time of each record

PAR - Photosynthetic Active Radiation expressed in µmol m-2 s-1

T - Temperature in Celsius degrees measured

WC - Relative Water content expressed in % of the dry mass

CO2 - CO2 levels expressed in ppm

Ameasured – Measured gas-exchange rate in nmolg-1s-1

dWC – Difference in water content between two measurements (this we used to determine coefficient k, would not be needed if you have the water loss curve measured on different VPDs)

coef_k – drying speed coefficient

start – contains the date and time for the beginning of the daylight for each day, the rest of the column is filled with NAs (NA stands for not available, this is how the missing values are represented in R). This column is added to the original data to be able to plot the periods of daylight and night in different colors

end – contains the date and time for the end of the daylight for each day, the rest of the column is filled with NAs (NA stands for not available, this is how the missing values are represented in R). This column is added to the original data to be able to plot the periods of daylight and night in different colors

day_night - contains the string value either day, night or NA (NA stands for not available, this is how the missing values are represented in R), this column is added to the original data to be able to plot the periods of daylight and night in different colors

Nikolic_et_al_2023_Parameters_for_the_model_P_aurata_and_L_muralis.csv

Table with parameters we used for validation. To use the PoiCarb 1.0 model, you will need a table like this with parameters for your species. You can obtain the same table by running the Nikolic_et_al_2023_Getting_parameters_from_response_curves.R

Explanation for each column in the file:

LC_par_a, LC_par_b, LC_par_c are the columns containing parameters from the light-response curve; WC_par_a, WC_par_b, WC_par_c are the columns containing parameters from the water-response curve; WC_Rd_par_a, WC_Rd_par_b, WC_Rd_par_c are the columns containing parameters from the dark respiration water-response curve; CO2_par_a, CO2_par_b, CO2_par_c are the columns containing parameters from the CO2-response curve; T_par_a, T_par_b, T_par_c are the columns containing parameters from the temperature-response curve; T_Rd_par_a, T_Rd_par_b are the columns containing parameters from the dark respiration temperature-response curve.

Nikolic_et_al_2023_Microclimatic_input_data_17-24-Sep-93.csv

Nikolic_et_al_2023_ Microclimatic_input_data_24-Sep-1-Oct-93.csv

These two files contain microclimatic data, the same columns and data as in Nikolic_et_al_2023_Microclimatic_input_data_17-Sept-01-Oct-1993_Lange_2004.csv, just separated into two different files, it was better for plotting.

Nikolic_et_al_2023_Getting_parameters_from_response_curves.R

R script to be used to get the parameters from the environmental gas exchange response curves and drying speed curves.

Nikolic_et_al_2023_PoiCarb_model.R

PoiCarb model R script. The script is commented, in case something is not clear enough or you have questions write to the author (nada.m.nikolic@gmail.com).

Sharing/Access information

Data was derived from the following sources:

• Lange, O. L. 2002. Photosynthetic productivity of the epilithic lichen Lecanora muralis: Long-term field monitoring of CO2 exchange and its physiological interpretation. I. Dependence of photosynthesis on water content, light, temperature, and CO2 concentration from laboratory measurements. *Flora *197: 233–249.
• Lange, O. L., B. Büdel, H. Zellner, G. Zotz, and A. Meyer. 1994. Field measurements of water relations and CO2 exchange of the tropical, cyanobacterial basidiolichen Dictyonema glabratum in a Panamanian rainforest*. Botanica Acta 107: 279–290.

Code/Software

There are two R scripts that can be downloaded together with the data. Nikolic_et_al_2023_Getting_parameters_from_response_curves.R and Nikolic_et_al_2023_PoiCarb_model.R. Both scripts are commented (have explanations and notes how to use them).