d.grassall: d.grassall

d.grassallR Documentation

d.grassall

Description

Counts of grassland birds on 14 waterfowl production areas subjected to one of two treatments (cut or control). Cuts occurred after an initial observation year. Data are from Thompson et al. 2016.

Usage

d.grassall

Format

A data frame with 1755 rows and 7 variables:

stn.unit.year

character unique ID (station, waterfowl production area, year of survey)

total

double total count of grassland bird species within 100 m of the surveyer

wpa

character site (waterfowl production area)

year

double year of survey

trt

character identifying if the site was originally cut (=1) or served as a control (=0)

observer

character observer

I.trt

character equal to 1 if observation was after cutting and 0 otherwise

Source

Thompson, S. J., Arnold, T. W., Fieberg, J., Granfors, D. A., Vacek, S., & Palaia, N. (2016). Grassland birds demonstrate delayed response to large‐scale tree removal in central North America. Journal of Applied Ecology, 53(1), 284-294.

Data were originally downloaded from: Thompson, Sarah, J. (2015). Data and R Code for Analyses in "Grassland birds demonstrate delayed response to large-scale tree removal in central North America". Retrieved from the Data Repository for the University of Minnesota, http://dx.doi.org/10.13020/D6C88M.


jfieberg/Data4Ecologists documentation built on April 17, 2025, 3:12 p.m.