Sixty-fourth Supplement to the American Ornithological Society’s Check-list of North American Birds

Ornithology, Journal Year: 2023, Volume and Issue: 140(3)

Published: June 6, 2023

Delichon lagopodum Siberian House-

Language: Английский

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Macroevolutionary drivers of morphological disparity in the avian quadrate

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2017)

Published: Feb. 21, 2024

In birds, the quadrate connects mandible and skull, plays an important role in cranial kinesis. Avian morphology may therefore be assumed to have been influenced by selective pressures related feeding ecology, yet large-scale variation its potential relationship with ecology never quantitatively investigated. Here, we used geometric morphometrics phylogenetic comparative methods quantify morphological of key ecological features across a wide sample. We found non-significant associations between shape different scales comparison; indeed, allometry phylogeny exhibit stronger relationships than features. show that similar shapes are associated widely varying dietary ecologies (one-to-many mapping), while divergent (many-to-one mapping). Moreover, avian evolves as integrated unit exhibits strong morphologies neighbouring bones. Our results collectively illustrate has evolved jointly other elements kinetic system, major crown bird lineages exploring alternative morphologies, highlighting diagnostic value investigations systematics.

Language: Английский

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Evolutionary history of New World crakes (Aves: Rallidae) with emphasis on the tribe Laterallini

Zoologica Scripta, Journal Year: 2023, Volume and Issue: 52(4), P. 394 - 412

Published: April 7, 2023

Abstract New World crakes are intriguing, poorly known birds with cursorial cryptic habits; they belong to two unrelated tribes: Laterallini and Pardirallini. Recent genetic studies contributed the phylogenetic knowledge of these tribes, but a complete reconstruction is still missing. Here, we present most taxonomically dated gene‐based phylogeny crakes, an emphasis on Laterallini, including for first time sequences Coturnicops notatus , Laterallus levraudi L. jamaicensis tuerosi xenopterus . We used multilocus (mtDNA + nucDNA) analyses interpreted our results in light natural history group. Our novel show that: (1) sister leucopyrrhus ; (2) j. spilonota (3) C. clade that groups remaining black ( tuerosi, rogersi spilopterus ); (4) melanophaius conform recently diverged clade. Thus, indicate polyphyly this group, particularly and, time, some discrepancies previous stem from misidentified samples or Anurolimnas fasciatus. Finally, provide new preliminary insights into species limits taxa, specifically set stage integrative taxonomic assessments at generic level by incorporating (gene‐based) data.

Language: Английский

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Evolution of the preformative molt in Cardinalidae correlates with transitions from forest to open habitats

Ornithology, Journal Year: 2021, Volume and Issue: 138(1)

Published: Jan. 4, 2021

Abstract We explored adaptive factors affecting the preformative molt in passerine family Cardinalidae, and concluded that ancestor inhabited forest habitats underwent a partial included wing coverts but not primaries. Later radiations within appeared to be characterized by transitions from forests toward more open habitats, such also correlated positively with increased investment, plumage signaling, flight. While previous studies had highlighted role of time energy constraints evolution passerines, we conclude adaptation physical environment has greater influence than on this Cardinalidae. Using data 430 individuals 41 51 Cardinalidae species, tested whether social environmental (delayed maturation habitat openness), as well physiological (body mass, migration distance, breeding latitude), have influenced family. predicted these five could relate extent terms examined or presence an auxiliary molt. found strong phylogenetic signal for due shared ancestry, openness correlating significantly extent. very relationship molt, indicating both episodes form part early life strategy Evolutionary histories environments which each taxonomic group adapted can diverge across expect future will further discover nature strength evolutionary drivers

Language: Английский

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Experimental evidence that social information affects habitat selection in Marbled Murrelets

Ornithology, Journal Year: 2021, Volume and Issue: 138(2)

Published: March 10, 2021

Abstract Habitat selection decisions can impact individual fitness and ultimately scale up to mediate population dynamics. Understanding how birds select habitat is thus critical for discerning the biological processes structuring populations developing conservation strategies, particularly species in decline. Marbled Murrelet (Brachyramphus marmoratus; hereafter murrelet) have declined recent decades due loss of late-successional forest nesting changing ocean conditions that foraging success. Most other seabirds family Alcidae nest colonially evidence suggests murrelets may aggregate stands, yet no studies examined murrelet use social information nest-site selection. In 2016, we experimentally simulated presence at 14 randomly chosen potential breeding sites by broadcasting calls throughout period. Between bouts, recorded wild compared call rates with those control (no broadcast). One year after playbacks ceased (2017) conducted season surveys document behaviors indicative activity. Broadcasting 2016 increased daily odds vocalizing during treatment period 15.4× (95% CI: 2.3, 125.4) relative sites. During 2017 season, occupancy were 10.0× (CI: 1.2, 81.4) greater than These results indicate influences site because conspecific appeared attract prospectors continued occupying following year. This attraction implies are likely remain occupied over time large tracts be important supporting populations. Murrelets also susceptible information-mediated Allee effects whereby a lack about could exacerbate long-term declines.

Language: Английский

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Revisión al conocimiento del Burrito Pico Rojo (Mustelirallus erythrops) en Argentina: una elusiva sombra que irrumpe en quebrachales y palmares del Chaco Oriental argentino

Nuestras Aves, Journal Year: 2024, Volume and Issue: 69

Published: May 15, 2024

El Burrito Pico Rojo (Mustelirallus erythrops) es una especie con mínima información sobre su distribución e historia natural, y uno de los rálidos menos conocido las Américas. En Argentina, durante la mayor parte del siglo XX, se lo indicó solo en el rincón noroeste país. Factores como sus hábitos crípticos, desconocimiento general voces, corto período actividad vocal dificultan detección estudio. Compilamos presencia Argentina a partir trabajo campo, búsquedas bibliográficas revisión plataformas digitales ciencia ciudadana. últimos 40 años, registros esporádicos noreste, centro sur país sugieren que sería mucho más amplia supuesto. base grabaciones discutimos cinco vocalizaciones contexto son emitidas. Postulamos presenta irrupciones notable cantidad individuos vocalizan ciclos muy cortos tiempo. Este fenómeno estaría ligado oferta hábitat someramente inundado luego lluvias intensas sectores Chaco oriental o húmedo.

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A New Species of the Feather Mite Genus Grallolichus Gaud, 1960 (Acariformes: Pterolichidae): First Report of a Commensal Mite Specific to the Sungrebe (Heliornis fulica)

Animals, Journal Year: 2024, Volume and Issue: 14(20), P. 3035 - 3035

Published: Oct. 19, 2024

Feather mites of finfoots (Heliornithidae), a small gruiform family, are poorly and partly erroneously recognized. Grallolichus heliornisi sp. n. (Astigmata: Pterolichidae) is here described from the sungrebe Heliornis fulica as first representative genus commonly found on close relatives finfoots, Rallidae Sarothuridae. This species belongs to group having ornamented dorsal shields morphologically most G. proctogamus inhabiting Eurasian coot (Fulica atra). Males new differ mainly by shape opisthosomal lobes (triangular vs. rounded) aedeagus form (parallel sided tapering distally). Females supranal concavity (open anteriorly closed) location setae h1 in relation (lateral anterior). A key known provided. The morphological analysis descriptive characterization this species, like much approximately 2500 feather mite date, were based mummified material preserved 19th-century old museum bird specimens. These often-forgotten collections only source for acarofauna many rare, unavailable wild or even extinct taxa.

Language: Английский

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Dry season intensity has equivocal effects on the nutritional condition of understory birds in a Neotropical forest

Ornithology, Journal Year: 2021, Volume and Issue: 138(2)

Published: March 10, 2021

Abstract Rainfall regime, the amount and timing of annual precipitation, can influence breeding phenology, individual fitness, population dynamics tropical birds. In Neotropical regions with rainfall seasonality (i.e. wet dry seasons), warm phase El Niño Southern Oscillation (ENSO) exacerbate seasonal drought negatively impact avian survival reproduction. However, mechanisms underlying associations between conditions demography are largely unexplored. One hypothesis is that nutritional condition mediates demographic responses to drought: individuals in poor may be less capable balancing their energy budgets consequently suffer reduced survival, lower reproductive output, or both. We estimated scaled mass index, percent hematocrit, plasma lipid metabolites) as a proxy balance understory forest birds contrasting population-level season length. This study took place across two seasons differing intensity central Panama: an (2016, severe drought) more typical (2017). Scaled index remained relatively constant throughout both years for 5 common focal species among 4 foraging guilds (22 additional species, 27 total). Three did exhibit hematocrit and/or higher β-hydroxybutyrate) during but not season. show consistent we found little evidence at guild level, suggesting many bird tolerating drought.

Language: Английский

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A tiny duck (<em>Sibirionetta formozovi</em> sp. nov.), a giant grey partridge (<em>Titanoperdix felixi</em> gen. et sp. nov.), a new rail (<em>Porzana payevskyi</em> sp. nov.), and other birds from the Early Pleistocene of Baikalian Siberia

Biological Communications, Journal Year: 2023, Volume and Issue: 68(4)

Published: Dec. 31, 2023

The paper describes fossil birds from the Early Pleistocene (Gelasian) of Malye Goly locality in Baikal area East Siberia (Irkutsk Region, Russia). This is first studied bird fauna Northern Asia, shedding light on early Quaternary associations Siberia. A tiny duck Sibirionetta formozovi sp. nov. representative modern genus Sibirionetta, endemic Eastern find documents long-time (at least since Pleistocene) presence these ducks region. new large pheasant-sized phasianid Titanoperdix felixi gen. et a large-sized grey partridge evolutionary lineage (Perdicini). agreement with fact that relatively small partridges (genus Perdix) are phylogenetically nested within larger-bodied pheasants. Among other Tadorna tadorna, three (including one diving form), Perdix cf. dauurica, Porzana payevskyi nov., Podicipedidae indet., Scolopacidae and Corvidae indet. assemblage indicates rather productive water body mostly open landscapes vicinity. avifauna does not show any considerable affinity Late Pliocene avian assemblages Southern Transbaikalia Mongolia, as well China, thus most likely represents separate paleornithogeographical unit. oldest confirmed representatives s.s. record, supporting Asian origin probable out-of-Asia dispersal to North America Pleistocene.

Language: Английский

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Small rails from the late Quaternary of the Southern High Plains and their palaeoenvironmental context

Ibis, Journal Year: 2023, Volume and Issue: 165(4), P. 1280 - 1295

Published: April 1, 2023

The fossil record of birds from the Quaternary Period (2.58 mya to present) North America sheds light on modern patterns diversity and geographical distribution. Fossils late Pleistocene early Holocene document presence multiple species small rails Southern High Plains. Black Rails, Virginia Rails Soras occurred throughout regional drainages ~ 11 000 8500 years ago. Age palaeoenvironmental data associated with rail remains provide temporal ecological context. Those link past populations extant occurring as migrants region today. total reveals that occur Plains today despite major changes in climate, environments, biota habitats since Pleistocene–early Holocene. Anthropogenic wetlands present day threaten occurrence across

Language: Английский

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