Results 31 to 40 of about 16,809 (261)

Interacciones sociales de aves granívoras silvestres frente a comederos experimentales en el matorral semiárido del norte de Chile

open access: yesGayana, 2022
Se estudió la expresión de conductas agresivas de aves frente a comederos artificiales con semillas en una región semiárida de Chile. En ocho comederos experimentales cuantificamos 1.118 eventos de interacción social, registrándose 366 conductas ...
Matías Portflitt-Toro   +2 more
doaj  

Species traits explaining long-term abundance changes of breeding birds in farmland areas in Álava (N Spain) [PDF]

open access: yesMunibe Ciencias Naturales
In recent decades, the populations of many common bird species have greatly declined in Europe, particularly in farmland habitats. However, this decline has not affected every species, and to understand the mechanisms behind this interspecific ...
José Antonio Gainzarain   +1 more
doaj   +1 more source

Avifauna Diversity of Darmalak Ali Kach Game Reserve at District Kohat, Khyber Pakhtunkhwa, Pakistan

open access: yesJournal of Bioresource Management, 2020
Darmalak Ali Kach Game Reserve (District Kohat, Khyber Pakhtunkhwa, Pakistan), has variety of habitats. Field survey was conducted using count method; block method etc. The total number of individuals counted during study was 528.
Gauhar Zaman   +3 more
doaj   +1 more source

Structure and function of the vocal repertoire of the Rifleman ( Acanthisitta chloris ), a member of the earliest diverging passerine suborder, Acanthisitti

open access: yesJournal of Field Ornithology, 2023
Birds communicate primarily using vocal signals. These signals undergo strong selection for effective transmission, which is often critical for survival.
Yen Yi Loo   +5 more
doaj   +1 more source

The earliest Tyrannida (Aves, Passeriformes), from the Oligocene of France

open access: yesScientific Reports, 2020
Passeriformes is the most diverse bird order. Nevertheless, passerines have a remarkably poor early fossil record. In addition, high osteological homoplasy across passerines makes partial specimens difficult to systematically assign precisely.
Ségolène Riamon   +2 more
semanticscholar   +1 more source

Two passeriform birds (Aves: Passeriformes) from the Middle Miocene of Austria [PDF]

open access: yesPalZ, 2021
AbstractTwo newly discovered specimens of passerine birds—an isolated sternum and an associated skeleton—from the upper Middle Miocene (ca. 12 Ma) are the oldest representatives of Passeriformes from Austria. Although the condition of the specimens prevents their accurate identification, they provide further clues on the morphological diversity of the ...
Johannes Happ   +4 more
openaire   +2 more sources

Fig. S1. MB Madanga Passeriformes AllLoci 4parts [PDF]

open access: yes, 2015
Relationships of broad selection of Passeriformes, including Madanga ruficollis and Amaurocichla bocagii, based on concatenated ND2, ODC, myo and CHD1Z, analysed by Bayesian inferenece, partitioned by ...
Knud Andreas Jønsson (3244677)   +11 more
core   +1 more source

Adaptive expansion of ERVK solo-LTRs is associated with Passeriformes speciation events

open access: yesNature Communications
Endogenous retroviruses (ERVs) are ancient retroviral remnants integrated in host genomes, and commonly deleted through unequal homologous recombination, leaving solitary long terminal repeats (solo-LTRs).
Guangii Chen   +10 more
semanticscholar   +1 more source

Relationships of song structure to phylogenetic history, habitat, and morphology in the vireos, greenlets, and allies (Passeriformes: Vireonidae)

open access: yesEvolution; international journal of organic evolution, 2020
Acoustic signals show immense variation among passerines, and several hypotheses have been proposed to explain this diversity. In this study, we tested, for the first time, the relationships of song structure to phylogeny, habitat type, and morphology in
Miguel A. Mejías   +4 more
semanticscholar   +1 more source

Mortality by filarial nematodes in passeriformes of species Oryzoborus maximiliani in Brazil Mortalidade por nematódeos filarióides em passeriformes da espécie Oryzoborus maximiliani no Brasil

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2000
Descreve-se a ocorrência de filariose em passeriformes da espécie Oryzoborus maximiliani (bicudo) mantidos em cativeiro. Os sinais clínicos incluiram insuficiência respiratória e prostração, evoluindo para decúbito lateral e morte.
N.R.S. Martins   +5 more
doaj   +1 more source

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