Number and nest-site selection of breeding black-necked cranes over the past 40 years in the Longbao Wetland Nature Reserve, Qinghai, China
Why this work is in the frame
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Bibliographic record
Abstract
Black-necked crane (Grus nigricollis, BNC), facing serious threats from human activities and habitat variations, is an endangered species classified as vulnerable under the revised IUCN Red List. In this article, we investigated and analyzed the population and nesting microhabitat of BNCs in the Longbao National Nature Reserve (NNR) from 1978 to 2016, and found the number of BNCs increased from 24 in 1978 to 216 in 2016. This establishment of the Longbao NNR represented the activities of protecting endangered animal species are effective. However, the land cover classification results of Landsat images showed that the marsh wetland, which was the BNC’s primary habitat, decreased during 1978–2016, while artificial buildings increased, which affected the habitat of BNCs. The increase in average temperature over the past 40 years has also had an impact on the number of BNCs. BNCs preferred to nest in marsh wetlands or on islands with open water or star-like distributions through observation. The results of the principal component analysis showed that the nearest distance between nests and habitat type were the primary factors influencing nesting site selection. To protect BNC, we suggest decreasing wetland fragmentation, reducing habitat degradation and providing an undisturbed habitat.
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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 | 0.000 |
| 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) | 0.001 | 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 it