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Record W2164972863 · doi:10.1525/auk.2012.12021

Stable associations within flocks of Greater Snow Geese (<i>Chen caerulescens atlantica</i>): Do they exist beyond family bonds?

2012· article· en· W2164972863 on OpenAlexaff
Meggie Desnoyers, Gilles Gauthier, Josée Lefebvre

Bibliographic record

VenueThe Auk · 2012
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicAnimal Behavior and Reproduction
Canadian institutionsEnvironment and Climate Change CanadaUniversité LavalCenter for Northern Studies
Fundersnot available
KeywordsBroodBiologyEcologyFlockZoologyDemography

Abstract

fetched live from OpenAlex

Understanding the nature of social groups may help explain the genetic structure of populations. Recently, a finescale genetic structure was found in the Greater Snow Goose (Chen caerulescens atlantica) among adults captured in different brood-rearing sites. Such a structure requires assortative pairing among birds coming from the same brood-rearing site, a process that could be enhanced if individuals maintain stable associations over time. We verified whether stable groups persisted throughout the annual cycle of this migratory species. We used an 18-year data set of females marked on brood-rearing sites in the Arctic (n = 16,060) and recaptured on those sites or resighted on the breeding, staging, or wintering grounds in subsequent years. We used a probabilistic method to compare the number of associations observed with the number expected by chance alone. Our results provide no evidence that stable groups persist in flocks during migration or in winter among adult females. However, females marked at the same brood-rearing site had a greater probability of being found nesting together or of being recaptured together on the brood-rearing area in subsequent years than expected by chance. We suggest that the latter associations are more likely due to the fidelity of females to their nesting and brood-rearing site than a consequence of the formation of stable aggregations among individuals. Our results do not support the hypothesis that formation of stable groups is a mechanism that promotes assortative pairing by allowing individuals from the same brood-rearing area to remain together during the non-breeding season in Greater Snow Geese. Comprendre la nature des groupes sociaux peut aider à expliquer la structure génétique des populations. Récemment, une structure génétique à petite échelle spatiale a été mise en évidence chez la Grande Oie des neiges (Chen caerulescens atlantica) parmi des adultes ayant été capturés sur différents sites d'élevage des jeunes. Une telle structure nécessite une préférence pour des individus assortis provenant du même site d'élevage lors du choix d'un partenaire, un processus qui pourrait être facilité si les individus maintiennent des associations stables dans le temps. Nous avons vérifié si des groupes stables persistent lors de la migration annuelle de cette espèce. Nous avons utilisé une base de données s' échelonnant sur 18 ans de femelles marquées sur les sites d'élevage dans l'Arctique (n = 16 060) et recapturées sur ces sites ou réobservées sur les sites de reproduction, de halte migratoire ou d'hivernage dans les années subséquentes. Nous avons utilisé une approche probabiliste pour comparer le nombre d'associations observées au nombre attendu dû au hasard seulement. Nos résultats démontrent aucune évidence que des groupes stables de femelles adultes persistent dans les volées durant la migration ou l'hivernage. Cependant, les femelles marquées sur le même site d'élevage avaient une plus grande probabilité d'être retrouvées nichant ensemble ou d'être recapturées ensembles sur les sites d'élevage les années subséquentes que ce qui aurait été attendu par hasard. Nous suggérons que ces associations sont probablement dues à une fidélité des femelles à leur site de nidification et d'élevage des jeunes plutôt que la conséquence de la formation d'agrégations stables entre les individus. Nos résultats ne supportent pas l'hypothèse que la formation de groupes stables soit un mécanisme facilitant le choix d'un partenaire assorti en permettant aux individus provenant du même site d'élevage de rester ensemble durant tout le cycle annuel chez la Grande Oie des neiges.

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 imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.653
Threshold uncertainty score0.206

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.035
GPT teacher head0.240
Teacher spread0.206 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations2
Published2012
Admission routes1
Has abstractyes

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