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Record W2767953143 · doi:10.1111/jofo.12227

Divergence in nest placement and parental care of Neotropical foliage-gleaners and treehunters (Furnariidae: Philydorini)

2017· article· en· W2767953143 on OpenAlexaff
Kristina L. Cockle, Alejandro Bodrati

Bibliographic record

VenueJournal of Field Ornithology · 2017
Typearticle
Languageen
FieldEnvironmental Science
TopicAvian ecology and behavior
Canadian institutionsUniversity of British Columbia
FundersRoyal SocietyNeotropical Bird ClubColumbus Zoo and AquariumRufford FoundationUniversidad Nacional de MisionesNorthwestern University
KeywordsCladeBiologyNest (protein structural motif)InsectivoreZoologyEcologyPaternal carePhylogenetic treePredationOffspring

Abstract

fetched live from OpenAlex

The Neotropical ovenbirds (Furnariidae) are an adaptive radiation of suboscines renowned for the diversity of their nests. Like most altricial insectivores, they generally exhibit biparental care. One tribe, Philydorini, includes 46 species thought to nest in either underground burrows or tree cavities, nest types traditionally treated as equivalent in phylogenetic studies. Their parental care systems are poorly known, but could help illuminate how uniparental care – typically associated with frugivory – can arise in insectivores. We examined the extent to which nest placement, parental care, and associated reproductive traits map onto two major clades of Philydorini identified by genetic hypotheses. We review published literature and present new information from the Atlantic Forest of Argentina, including the first nest descriptions for Ochre-breasted Foliage-gleaners (Anabacerthia lichtensteini) and Sharp-billed Treehunters (Heliobletus contaminatus). In the Automolus-Thripadectes-Clibanornis clade (including Philydor rufum), 134 of 138 reported nests were in underground burrows. In the Syndactyla-Anabacerthia-Anabazenops clade (including Heliobletus, Philydor atricapillus, and Philydor erythrocercum), 44 of 48 nests were in tree cavities. Remaining nests were in buildings or species-level identification was unclear. At least eight species in the first clade, but none in the second clade, excavated their nest sites. Biparental care was confirmed for nine species in the first clade and one species in the second clade. In contrast, nests of A. lichtensteini and H. contaminatus were attended by a single secretive adult. We propose that species in the Automolus-Thripadectes-Clibanornis clade are underground burrow excavators, and those in the Syndactyla-Anabacerthia-Anabazenops clade are secondary tree-cavity nesters (nonexcavators). We also note that parental care strategies in Furnariidae vary with nest complexity and conspicuousness – from uniparental care in secretive tree-cavity nesters to cooperative breeding in highly vocal builders of elaborate nests – suggesting evolutionary links among nest-building, concealment, and parental care strategies. Divergencia en ubicación de nidos y cuidado parental en Philydorini (Furnariidae: Philydorini) La familia Furnariidae es una radiación adaptativa de suboscines reconocida por la alta diversidad de sus nidos. Como la mayoría de los insectívoros nidícolas, generalmente tienen cuidado biparental. Una de las tribus, Philydorini, incluye 46 especies que anidarían en excavaciones subterráneas o en cavidades de árboles, dos tipos de nido que los estudios filogenéticos tradicionalmente han tratado como equivalentes. son tradicionalmente considerados como equivalentes en estudios filogenéticos. El sistema de cuidado parental en esta tribu es poco conocido, pero puede contribuir a comprender como el cuidado uniparental –típicamente asociado con frugivoría- puede surgir en insectívoros. Examinamos hasta qué punto la ubicación de los nidos, el cuidado parental y los caracteres reproductivos asociados se correlacionan con los dos clados principales de Philydorini identificados por hipótesis genéticas. Revisamos la literatura y presentamos información nueva de la Selva Atlántica de Argentina, incluyendo las primeras descripciones del nido de Anabacerthia lichtensteini y de Heliobletus contaminatus. En el clado de Automolus-Thripadectes-Clibanornis (incluyendo Philydor rufum), 134 de los 138 nidos reportados fueron en excavaciones subterráneas. En el clado de Syndactyla-Anabacerthia-Anabazenops (incluyendo Heliobletus, Philydor atricapillus y Philydor erythorcercum), 44 de los 48 nidos fueron en cavidades de árboles. Los nidos restantes fueron en edificios o la identificación a nivel de especie no fue clara. Al menos ocho de las especies en el primer clado, pero ninguna del segundo clado, excavaron sus sitios de anidación. Confirmamos el cuidado biparental en nueve especies en el primer clado y una especie en el segundo clado. En contraste, nidos de Anabacerthia lichtensteini y Heliobletus contaminatus fueron cuidados por un único adulto sigiloso. Proponemos que las especies en el clado de Automolus-Thripadectes-Clibanornis son excavadores de túneles subterráneas y que las especies en el clado de Syndactyla-Anabacerthia-Anabazenops son adoptadores de cavidades de árboles. También resaltamos que las estrategias de cuidado parental en Furnariidae varían con la complejidad y conspicuidad del nido – desde cuidado uniparental en especies sigilosas que anidan en cavidades de árboles hasta cría cooperativa en especies altamente vocales que construyen nidos elaborados – sugiriendo asociaciones evolutivas entre la construcción de los nidos, su encubrimiento y las estrategias de cuidado parental.

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: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.006
Threshold uncertainty score0.392

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 head0.011
GPT teacher head0.269
Teacher spread0.258 · 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".

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Citations12
Published2017
Admission routes1
Has abstractyes

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