Distance sampling data of 16 bird species in 2018 in the Disney Wilderness Preserve in Florida, USA. These data were collected as part of the National Ecological Observatory Network (NEON). Data were collected at 90 sites where observers recorded the number of all bird species observed during a six minute, unlimited radius point count survey once during the breeding season. Distance of each individual bird to the observer was recorded using a laser rangefinder. For modeling, we binned the distance measurements into 4 distance bins, and only used observations within 250m. The 16 species included in the data set are as follows: (1) EATO (Eastern Towhee); (2) EAME (Eastern Meadowlark); (3) AMCR (American Crow); (4) BACS (Bachman's Sparrow); (5) CARW (Carolina Wren); (6) COGD (Common Ground Dove); (7) CONI (Common Nighthawk); (8) COYE (Common Yellowthroat); (9) EABL (Eastern Bluebird); (10) GCFL (Great-crested Flycatcher); (11) MODO (Mourning Dover); (12) NOCA (Northern Cardinal); (13) NOMO (Northern Mockingbird); (14) RBWO (Red-bellied Woodpecker); (15) RHWO (Red-headed Woodpecker); (16) WEVI (White-eyed Vireo).
data(neonDWP)neonDWP is a list with five elements:
y: a three-dimensional array of distance sampling data with
dimensions of species (16), sites (90) and distance bin (4).
covs: a data frame with 90 rows and four columns consisting of
covariates for use in modeling abundance and/or detection.
dist.breaks: a vector of five values indicating the break points
of the four distance bands in the data.
offset: an offset used to scale the 250m radius point count surveys
to ha, such that resulting estimates will be the number of individuals
per ha.
coords: a numeric matrix with 373 rows and two columns containing the
site coordinates (Easting and Northing) in UTM Zone 17N. The EPSG is 32617.
Barnett, D. T., Duffy, P. A., Schimel, D. S., Krauss, R. E., Irvine, K. M., Davis, F. W.,Gross, J. E., Azuaje, E. I., Thorpe, A. S., Gudex-Cross, D., et al. (2019). The terrestrial organism and biogeochemistry spatial sampling design for the national ecological observatory network. Ecosphere, 10(2):e02540.