Ornithology最新文献_第6页

C. Stuart Houston, 1927–2021 斯图尔特·休斯顿，1927-2021

Ornithology Pub Date : 2022-09-19 DOI: 10.1093/ornithology/ukac040

A. Brush

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Robert Charles Leberman, 1937–2020

Ornithology Pub Date : 2022-09-17 DOI: 10.1093/ornithology/ukac046

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100 Years Ago in The American Ornithologists' Union 100年前在美国鸟类学家联盟

Ornithology Pub Date : 2022-09-16 DOI: 10.1642/0004-8038(2001)118[0281:yaitao]2.0.co;2

Leesia C. Marshall

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Dale Allen Zimmerman, 1928–2021 戴尔·艾伦·齐默尔曼(1928-2021

Ornithology Pub Date : 2022-09-16 DOI: 10.1093/ornithology/ukac026

Eugene Jercinovic

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100 Years Ago in the American Ornithologists' Union 100年前在美国鸟类学家联盟

Ornithology Pub Date : 2022-09-16 DOI: 10.1093/ornithology/ukac042

Leesia C. Marshall

引用次数: 0

Genomic and geographic diversification of a “great-speciator” (Rhipidura rufifrons) 一种“大物种”(河鼠)的基因组和地理多样化

Ornithology Pub Date : 2022-09-13 DOI: 10.1093/ornithology/ukac049

Luke B. Klicka, Luke C Campillo, J. Manthey, Michael J. Andersen, J. Dumbacher, C. Filardi, L. Joseph, J. Uy, Douglas E. Weidemann, R. Moyle

{"title":"Genomic and geographic diversification of a “great-speciator” (Rhipidura rufifrons)","authors":"Luke B. Klicka, Luke C Campillo, J. Manthey, Michael J. Andersen, J. Dumbacher, C. Filardi, L. Joseph, J. Uy, Douglas E. Weidemann, R. Moyle","doi":"10.1093/ornithology/ukac049","DOIUrl":"https://doi.org/10.1093/ornithology/ukac049","url":null,"abstract":"ABSTRACT The radiation of so-called “great speciators” represents a paradox among the myriad of avian radiations endemic to the southwest Pacific. In such radiations, lineages otherwise capable of dispersing across vast distances of open ocean differentiate rapidly and frequently across relatively short geographic barriers. Here, we evaluate the phylogeography of the Rufous Fantail (Rhipidura rufifrons). Although a presumed “great-speciator”, no formal investigations across its range have been performed. Moreover, delimitation of lineages within R. rufifrons, and the biogeographic implications of those relationships, remain unresolved. To investigate whether R. rufifrons represents a great speciator we identified thousands of single nucleotide polymorphisms for 89 individuals, representing 19 described taxa. Analyses recovered 7 divergent lineages and evidence of gene flow between geographically isolated populations. We also found plumage differences to be a poor proxy for evolutionary relationships. Given the relatively recent divergence dates for the clade (1.35–2.31 mya), rapid phenotypic differentiation, and evidence for multiple independent lineages within the species complex, we determine that R. rufifrons possesses the characteristics of a great speciator. LAY SUMMARY To study biodiversity, we must have a clear understanding of the differences between species, and how those differences came to be. We obtained tissue samples for nearly 100 Rufous Fantails for this study making sure to include birds with as many different coloration patterns and geographic locations as possible We used DNA sequence data to identify distinct genetic groups within the Rufous Fantail complex, and subsequently to determine how similar those groups are to one another. We found strong support for seven genetically distinct groups that are all currently considered one species, the Rufous Fantail. We found evidence for interbreeding among groups, despite some having different coloration patterns and geographic ranges. Studying the Rufous Fantail shows us that groups of birds can look different from one another and/or be separated from each other by large distances, and still be similar genetically. RESUMEN La radiación de los llamados “grandes especiadores” representa una paradoja entre la miríada de radiaciones de aves endémicas del Pacífico suroeste. En tales radiaciones, los linajes que de otro modo serían capaces de dispersarse a lo largo de grandes distancias en mar abierto se diferencian rápida y frecuentemente a través de barreras geográficas relativamente cortas. Aquí, evaluamos la filogeografía de Rhipidura rufifrons. Aunque se presume que es un “gran especiador”, no se han realizado investigaciones formales en todo su rango. Además, la delimitación de linajes dentro de R. rufifrons y las implicaciones biogeográficas de esas relaciones siguen sin resolverse. Para investigar si R. rufifrons representa un gran especiador, identificamos miles de polimorfismos ","PeriodicalId":19617,"journal":{"name":"Ornithology","volume":"120 1","pages":"1 - 18"},"PeriodicalIF":0.0,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85994781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hatching failure is greater in altricial bird species with cavity nests and large clutches 在有洞巢和大窝的晚熟鸟类中，孵化失败更大

Ornithology Pub Date : 2022-09-12 DOI: 10.1093/ornithology/ukac048

Alexander J Di Giovanni, Michael J. Miller, Todd M. Jones, T. J. Benson, Martin P. Ward

{"title":"Hatching failure is greater in altricial bird species with cavity nests and large clutches","authors":"Alexander J Di Giovanni, Michael J. Miller, Todd M. Jones, T. J. Benson, Martin P. Ward","doi":"10.1093/ornithology/ukac048","DOIUrl":"https://doi.org/10.1093/ornithology/ukac048","url":null,"abstract":"ABSTRACT Mortality rates are high for most avian species during early life stages, forming a critical source of natural selection that helps shape the diversity of avian life-history traits. We investigated hatching failure (i.e., non-predatory embryonic mortality, excluding abandoned or damaged eggs) and found significant variation among passerine species. Failure rates ranged from 1.0% to 12.7%, and species with cavity nests and larger clutches experienced greater rates of hatching failure. While past research has focused on the direct effects of predation on the nestling and fledgling stages, little is known about how predation may indirectly influence other sources of mortality such as hatching failure. We investigated the influence of nest predation risk and other factors on variation in hatching failure among 14 free-living grassland and shrubland songbird species. Across all species, 7.7% of 1,667 eggs failed to hatch. We found little evidence that variation in nest temperature influenced rates of hatching failure within and among species, although species with larger clutch sizes had more variable nest temperatures. Dissection of failed eggs revealed that most hatching failures occurred before or shortly after the onset of development; however, there was no difference between cavity and open-cup nesters in the rate of early-stage mortality. Our findings suggest there may be tradeoffs to having a large clutch, with a benefit of rearing more young at the cost of greater hatching failure, possibly due to delayed onset of incubation, poor incubation behavior, or inability to incubate large clutches. Additionally, as larger clutches are often laid in cavity nests, which have a relatively low predation risk, this may outweigh the costs of increased hatching failure. More experimental approaches, such as clutch size manipulations and egg-specific incubation behavior are needed to provide greater insight into factors driving variation in hatching failure across species. LAY SUMMARY Hatching failure is common in birds, but it is a relatively understudied aspect of reproductive failure. We examined variation in hatching failure among 14 songbird species in east-central Illinois, USA. We found that species with safer nests and larger clutch sizes, particularly, cavity nesters had significantly higher rates of hatching failure. We found little evidence that nest temperature influenced rates of hatching failure and dissection of failed eggs revealed that most hatching failures occurred before or shortly after the onset of incubation. Our results suggest that nest predation may have an indirect negative effect on rates of hatching failure. RESUMEN Las tasas de mortalidad son altas para la mayoría de las especies de aves durante las etapas tempranas de la vida, lo que constituye una fuente crítica de selección natural que ayuda a dar forma a la diversidad de los rasgos de la historia de vida de las aves. Investigamos el fracaso de la eclosión (i.e., mor","PeriodicalId":19617,"journal":{"name":"Ornithology","volume":"238 1","pages":"1 - 15"},"PeriodicalIF":0.0,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89036026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Underestimated Neotropical diversity: Integrative taxonomy reveals two unrelated look-alike species in a suboscine bird (Pachyramphus albogriseus) 被低估的新热带多样性:综合分类学揭示了一种水下鸟类(Pachyramphus albogriseus)中两个不相关的相似物种

Ornithology Pub Date : 2022-08-27 DOI: 10.1093/ornithology/ukac047

Lukas J. Musher, N. Krabbe, J. I. Areta

{"title":"Underestimated Neotropical diversity: Integrative taxonomy reveals two unrelated look-alike species in a suboscine bird (Pachyramphus albogriseus)","authors":"Lukas J. Musher, N. Krabbe, J. I. Areta","doi":"10.1093/ornithology/ukac047","DOIUrl":"https://doi.org/10.1093/ornithology/ukac047","url":null,"abstract":"ABSTRACT We applied an integrative taxonomic framework to evaluate the systematics of the Neotropical Black-and-white Becard (Pachyramphus albogriseus Sclater 1857). Combining phylogenomic (ultraconserved elements), morphological, and vocalization data, we confirmed that this species is polyphyletic; some individuals form a clade sister to P. polychopterus and should be afforded species rank as P. salvini Richmond 1899 (Slender-billed Becard), whereas the remaining subspecies of P. albogriseus (Broad-banded Becard) are sister to P. major. We found that P. salvini differs from P. albogriseus in song, color of the lores, wing-bar width, body size, and bill width. Whereas P. albogriseus occurs in montane forest in Costa Rica and Panama (ssp. ornatus) and along the eastern slope of the Andes from northern Venezuela to southern Peru (ssp. albogriseus), P. salvini is found in the lowlands from Pacific Colombia south to northwest Peru and in the Río Marañón drainage. The latter also occurs, possibly only seasonally, along the eastern slope of the Andes, where the two species' ranges approach closely. We treat P. a. guayaquilensis Zimmer 1936 as a junior synonym of P. salvini Richmond 1899, and P. a. coronatus Phelps and Phelps 1953 as a junior synonym of P. a. albogriseus Sclater 1857. This study provides a striking example of a major problem for comparative biology: underestimated and mischaracterized diversity. We argue that there are likely many more cases like this awaiting discovery. LAY SUMMARY An integrative taxonomic framework reveals that two subspecies in the Black-and-white Becard (Pachyramphus albogriseus) are not closely related to that species. Two non-sister species differing subtly in plumage but more clearly in morphology and vocalizations are uncovered: Slender-billed Becard (P. salvini) and Broad-banded Becard (P. albogriseus). The two species are largely allopatric but P. salvini occurs, possibly only seasonally, on the east slope of the Andes in eastern Ecuador, and north and central Peru, in close proximity to P. albogriseus. Little data indicate spatial overlap between P. salvini (usually to the west, at higher altitude in dry to humid areas) and P. albogriseus (usually to the east, at lower altitude often in undisturbed, humid forest). Systematic work integrating phenotypic, genomic, and vocalization data, along with dense geographic sampling will increase the probability of detecting unrecognized species in the future. We highlight a major problem facing biodiversity science and comparative biology in general; species diversity remains underestimated and mischaracterized, even for well-inventoried groups like birds. RESUMEN Aplicamos un marco de taxonomía integradora para evaluar la sistemática de un ave neotropical, el Cabezón Blanco y Negro, Pachyramphus albogriseus Sclater 1857. Combinando datos filogenómicos (elementos ultraconservados), morfológicos y vocales, confirmamos que esta especie es polifilética; algunos individuos","PeriodicalId":19617,"journal":{"name":"Ornithology","volume":"50 1","pages":"1 - 17"},"PeriodicalIF":0.0,"publicationDate":"2022-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84687780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

2022 AOS Florence Merriam Bailey Award to Amelia-Juliette Demery 2022年AOS弗洛伦斯·梅里亚姆·贝利奖:艾米莉亚-朱丽叶·德梅里

Ornithology Pub Date : 2022-08-27 DOI: 10.1093/ornithology/ukac038

M. T. Murphy, Nathan W Cooper, K. Fraser, E. MacDougall-Shackleton, S. Oyler‐McCance, H. Streby

引用次数: 0

Thank You to the Reviewers of the 2022 Ornithology, Volume 139 感谢2022年《鸟类学》第139卷的审稿人

Ornithology Pub Date : 2022-08-27 DOI: 10.1093/ornithology/ukac043

T. Sillett

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