Details about each animal survey conducted at sampling points within six towns (areas) in Singapore: Punggol (PG), Queenstown (QT), Tampines (TP), Jurong West (JW), Bishan (BS) and Woodlands (WL).
Usage
data(animal_surveys)Source
Development of a Biodiversity Index for Residential Towns using Biodiversity Field Surveys, 2016–2022. Ministry of National Development Research Fund (MNDRF) Grant. Awarded to the National University of Singapore and the Singapore Housing & Development Board.
Details
The sampling points (point_id) were randomly generated within each town (area).
Four types of animal surveys were conducted at sampling points,
corresponding to four animal groups (column taxon): Birds (Aves), Butterflies (Lepidoptera),
Odonates (Odonata) and Amphibians (Amphibia).
Each sampling period stretched across a year-long duration, where sampling points
were surveyed once every two months (cycle adds up to 6 per period).
Some points were sampled again in the second period (column resampled is TRUE).
All surveys took place between the years 2016 to 2022.
See also
animal_observations which contain the time-based records of species abundance for each survey.
sampling_points where these animal surveys were conducted.
sampling_areas where the sampling points were generated within.
Examples
head(animal_surveys)
#> # A tibble: 6 × 9
#> survey_id point…¹ area period cycle taxon resam…² start_time notes
#> <chr> <chr> <chr> <dbl> <dbl> <chr> <lgl> <dttm> <chr>
#> 1 1 QTNa14a_… QTNa14… QT 1 1 Odon… NA 2016-08-04 14:00:00 NA
#> 2 1 QTNb1a_P… QTNb1a… QT 1 1 Odon… NA 2016-08-04 14:44:00 NA
#> 3 1 QTNa14a_… QTNa14… QT 1 1 Amph… NA 2016-08-04 19:55:00 NA
#> 4 1 QTNb1a_P… QTNb1a… QT 1 1 Amph… NA 2016-08-04 20:40:00 NA
#> 5 1 PGT15 1 … PGT15 PG 1 1 Aves NA 2016-08-08 07:00:00 NA
#> 6 1 PGT14 1 … PGT14 PG 1 1 Aves NA 2016-08-08 07:33:00 NA
#> # … with abbreviated variable names ¹point_id, ²resampled