**Acknowledgements**

This research was primarily funded by the Oklahoma Biological Survey and the South-Central Climate Science Center (SC-SCC) at the University of Oklahoma (US). AJC and CQS were supported by the NSF Idaho EPSCoR Program and by the National Science Foundation under award number IIA-1301792. JPJ was supported by Texas State University's Research Enhancement Program.

**Variables Type Description**

Qualitative Description of the study: case-study versus comparative

study period is not considered *Punctual*

study period does not consider a *time series*

conceptual versus commentary

Ecosystem Services across US Watersheds: A Meta-Analysis of Studies 2000–2014

*analytic or empirical* study

*Analytic or empirical* Binary 1 = If it is an *analytic or empirical* study; 0 = If it is not an

*Theoretical* Binary 1 = If it is an *Theoretical* study; 0 = If it is not a *Theoretical*

*Primary* Binary 1 = If the study used primary data, 0 = any study using

*Secondary* Binary 1 = If the study used secondary data, 0 = any study used

*Punctual* Binary 1 = If the study period is considered *Punctual*; 0 = If the

*Time series* Binary 1 = If the study period considers a *time series* 0 = If the

*Local* Binary 1 = If the study is defined as local scale, 0 = If the study

*Regional* Binary 1 = If the study is defined as regional scale, 0 = If the

*National* Binary 1 = If the study is defined as *national* scale, 0 = If the

*Desert and dry shrubs* Binary 1 = If the study focuses on desert and dry shrubs, 0 = If

Watershed Qualitative Name of the watershed

River Qualitative Name of the river

State Binary Name of the state

Surface of the study area Continuous Description of surface occupied

Geographical coordinate Continuous Description of geographical coordinates Major US watershed Qualitative Name of the US watershed (see map)

study

primary data

secondary data

Qualitative Name of major LCC (see map)

is not considered local scale.

Qualitative Description of the watershed (entire vs. part of)

study is not considered regional scale.

study is not considered as national scale.

the study does not focus on desert and dry shrubs

*Modeled* Binary 1 = If it is a modeled study; 0 = If it is not a modeled

study versus meta-analysis versus review versus

http://dx.doi.org/10.5772/intechopen.76650

93

Approach of the study

Source of data

Length of study period

**Related with the study area**

cooperative

Major LCC Landscape Conservation

WATERSHED OR BASIN SCALE

Watershed surface occupied (entire or

part of the watershed)

MAJOR BIOMES (see map)

Type of study (case-study vs. comparative study vs. meta-analysis vs. review vs. conceptual vs. commentary)
