Vehicle collisions and visitor disturbance reduce survival and reproductive success of kangaroos in a national park
Bibliographic record
Abstract
Many protected areas provide opportunities for people to view wildlife using roads and walking trails. The impacts of roads and trails on wildlife populations, however, have seldom been investigated by examining their consequences on individual animals. We studied the impacts of a road and use of a wildlife viewing trail on eastern grey kangaroos ( Macropus giganteus ) in Wilsons Promontory National Park, Australia. We analyzed 11 years of data from 433 marked individuals to quantify road mortality, and how distance from the road, where the walking trail started, affected survival, movement, and reproductive success. Kangaroos in the west of the study area, nearer the road and around a popular wildlife viewing trail, showed increased mobility, more vehicle-associated mortality, and decreased weaning success and survival, compared to kangaroos in the east that were exposed to substantially fewer visitors. Mature males, the sex-age class most likely to be killed by vehicles, had a 51 % higher probability of road mortality at the western than at the eastern end, contributing to a 47 % decrease in overall survival. Prime-aged females at the western end of the study area, where they experienced frequent exposure to visitors, had a 45 % lower probability of weaning a young compared to females in the east of the study area. Managers should consider these undesirable impacts when planning how to encourage people to interact with wildlife in protected areas.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".