First breeding record of the northern giant petrel<i>Macronectes halli</i>at Ile Amsterdam
Bibliographic record
Abstract
The genus Macronectes comprises two species of giant petrels, restricted to the southern oceans. These large scavenging and predatory seabirds heavily rely on rookeries of pinnipeds and penguins for food. However, greater availability of carrion from expanding populations of fur seals and increased waste from commercial fisheries are thought to be driving the current global trend of increasing northern giant petrel (NGP, Macronectes halli (Mathews)) populations (Patterson et al. 2008). In the southern Indian Ocean, NGPs breed on islands south of the Sub-Antarctic Front (SAF) (Patterson et al. 2008; Fig. S1 in the supplemental material found at http://dx.doi.org/ 10.1017/S0954102014000182). To date no NGP breeding attempt has been reported north of the SAF in this region despite common sightings of NGPs from the two islands at these lower latitudes (Amsterdam and Saint Paul, 37°46'S, 77°32'E, Fig. 1; Roux & Martinez 1987), which have large populations of sub-Antarctic fur seals Arctocephalus tropicalis Gray, recovering from near-extirpation after sealing (Roux 1987), and large penguin colonies on these islands (Jouventin 1994). Furthermore, the congeneric M. giganteus (Gmelin) is known to breed at such low latitudes in the southern Atlantic Ocean (Tristan da Cunha Island; Patterson et al. 2008). Here we report the first record, to our knowledge, of a Macronectes species nesting on Ile Amsterdam.
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 machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".