Raiter, Keren G; Hobbs, Richard J; Possingham, Hugh P; Valentine, Leonie E; Prober, Suzanne M (2018): Predator activity associated with linear infrastructure, link to files [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.895344, Supplement to: Raiter, KG et al. (2018): Vehicle tracks are predator highways in intact landscapes. Biological Conservation, 228, 281-290, https://doi.org/10.1016/j.biocon.2018.10.011
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2018-10-16 • DOI registered: 2018-11-14
Abstract:
Roads and other forms of linear infrastructure are rapidly proliferating worldwide, yet little is known about how roads affect the distribution and abundance of predators, particularly in relatively intact landscapes. We used a combination of motion-sensor cameras and spoor surveys to compare dingo, fox and feral cat activity on unsealed vehicle tracks (hereafter: roads) and up to 3 kilometres away, in relatively intact landscapes of the Great Western Woodlands in south-western Australia. We compared predator activity as indicated by independent sightings and spoor observations, in woodlands and shrublands: vegetation types with contrasting permeabilities.
Predator activity was observed between 12 and 261 times more frequently on roads compared with off-road for all species studied. Roads also appeared to affect predator activity up to 2.5 km away. Even poorly formed and abandoned roads concentrated predator activity and affected landscape-scale rates of predator observations. The effect of road proximity on predator activity was non-linear and different between vegetation types for dingoes and cats but not foxes. Our results provide new evidence of the effects of roads on predator activity in surrounding landscapes, with interacting effects of vegetation. They also reinforce previous findings e.g. stronger roads preference displayed by dingoes and foxes, than by cats. Roads and other linear infrastructure have strong effects on predator activity within intact landscapes, although further research is needed to characterise the implications for prey species. Road planning or approvals, as well as habitat restoration programs for threatened species, should account for the effects of roads on predator activity.
Coverage:
Median Latitude: -31.000000 * Median Longitude: 119.850000 * South-bound Latitude: -32.000000 * West-bound Longitude: 118.700000 * North-bound Latitude: -30.000000 * East-bound Longitude: 121.000000
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Raiter, Keren G | |||
| 2 | File format | File format | Raiter, Keren G | |||
| 3 | File size | File size | kByte | Raiter, Keren G | ||
| 4 | File name | File name | Raiter, Keren G | |||
| 5 | Uniform resource locator/link to file | URL file | Raiter, Keren G |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
75 data points
Data
| 1 Content | 2 File format | 3 File size [kByte] | 4 File name | 5 URL file |
|---|---|---|---|---|
| README | 209.488 | Raiter2018_supplementREADME | Raiter2018_supplementREADME.pdf | |
| Predator activity observations using motion-sensor cameras | CSV | 15.362 | cam.preds | cam.preds.csv |
| Predator activity observations from spoor (scat and print) surveys (raw data) | XLSX | 7410.420 | raw_spoor | raw_spoor.xlsx |
| Predator activity observations from spoor surveys (collated by 10m segments); excluded from analysis | CSV | 817.655 | seg.10 | seg.10.csv |
| Predator activity observations from spoor surveys (collated by 100m segments) | CSV | 101.789 | seg.100 | seg.100.csv |
| Predator activity observations from spoor surveys (collated by 250m segments) | CSV | 41.279 | seg.250 | seg.250.csv |
| Predator activity observations from spoor surveys (collated by 500m segments) | CSV | 22.441 | seg.500 | seg.500.csv |
| Predator activity observations from spoor surveys (collated by 1000m segments) | CSV | 12.891 | seg.1000 | seg.1000.csv |
| Testing for zero inflation by comparison of histograms | R | 1.729 | RCode 1_ZIP testing | RCode_1_ZIP_testing.R |
| Automating the running and comparison of numerous alternative models | R | 78.120 | RCode 2_Model automation | RCode_2_Model_automation.R |
| Running top models and model verification; initial plotting | R | 16.064 | RCode 3_Top models | RCode_3_Top_models.R |
| Code for plotting the effects of road proximity on predator activity (Figure 4) | R | 11.672 | RCode 4_Road proximity plot | RCode_4_Road_proximity_plot.R |
| Code for creating multi-image figures | R | 2.528 | RCode 5_Multi-image figures | RCode_5_Multi-image_figures.R |
| Camera locations, showing the locations of all motion-sensor camera stations. Coordinate system: Geocentric Datum of Australia 1994 | GIS, zipped | 11.681 | camera_locations | camera_locations.zip |
| Transect locations, showing the approximate route of spoor surveys. Coordinate system: Geocentric Datum of Australia 1994 | GIS, zipped | 6.589 | predator_transects | predator_transects.zip |