neonDWP {spAbundance}

Distance sampling data of 16 bird species observed in the Disney Wilderness Preserve in 2018 in Florida, USA

Description

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).

Usage

data(neonDWP)

Format

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.

Note

These data were updated on November 28, 2023 (v0.1.1), and thus any analyses run with the data from v0.1.0 will not give the same results. The data were updated after NEON discovered an error in how the bird count data was associated with the spatial locations of each site. These data have been updated following the procedures outlined at https://www.neonscience.org/impact/observatory-blog/bird-point-ids-within-grids-were-transposed-resulting-inaccurate-point.

Source

NEON (National Ecological Observatory Network). Breeding landbird point counts (DP1.10003.001), RELEASE-2023. https://doi.org/10.48443/00pg-vm19. Dataset accessed from https://data.neonscience.org on May 25, 2023

References

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.