Notice bibliographique
Résumé
Despite the flurry of front-page headlines reporting the all-encompassing reach of environmental change, the bulk of climate change studies have centred on terrestrial ecosystems, considering factors such as temperature and rainfall. However, other environmental elements may have been overlooked. In the marine environment, wind is a considerable component of the ecosystem that has been influenced by climate change. In the Southern Ocean, westerly winds have shifted poleward and increased in strength as a result of increased atmospheric pressure. Pelagic seabirds like the albatross are nomadic predators, counting on the winds in this region to reduce the cost of flight between their breeding and foraging sites. Curious about the impact of climate change on these charismatic animals, Henri Weimerskirch and others at the CNRS in France sought to determine the influence of Southern Ocean winds on the foraging ecology of the wandering albatross (Diomedea exulans), one of the most far-ranging pelagic seabirds. Ultimately, they hoped to understand what consequences this might have on life-history traits like breeding success and body condition.The CNRS team combined over 40 years of records on breeding success and tracking data on the duration of foraging trips with measurements of foraging success and body mass of wandering albatross on Crozet Island, located in the windiest area of the Southern Ocean. Though it is known that wind boosts flight in this nomad, the results of this research come as quite a surprise given the usually negative impact of changing climate. The team discovered that for the wandering albatross, climate change has actually been a benefit!Weimerskirch and his colleagues revealed that breeding success in this species has increased over the past 40 years. The risk of breeding failure is highest during egg incubation, a duty shared by both males and females in these birds. However, higher wind speeds mean shorter foraging trips, and shorter foraging trips mean shorter incubation shifts and a higher chance of breeding success for the albatross. In addition, the researchers realized that the body mass of incubating birds of both sexes has increased by 1 kg over the past 20 years, a hefty 10–12% of their bulk. They suggest that this enhanced physique may boost flight performance in gustier zones, perhaps even reflecting that the mass gain is an adaptive response to the blustery surroundings.It isn’t often that climate change proves advantageous to the affected critters and these findings are also relevant for conservation, as the range of this species has shifted poleward in concert with the winds. This has reduced their overlap with tuna long-line fisheries, which are known to increase albatross mortality. However, this upbeat scenario may not last forever. Even breezier conditions forecast for 2080 could prove detrimental for albatross flight performance and if winds shift even further toward the poles, the island of Crozet may cease to be a refuge for this central-place forager.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,001 | 0,001 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,032 | 0,006 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».