Global ETD Search
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Showing 1 to 20 of 27 for “"Passeriformes"”.
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Inference of phylogenetic relationships in passerine birds (Aves: Passeriformes) using new molecular markers
… The monophyly of the largest avian order Passeriformes (~59% of all living birds) and the division into its suborders suboscines and oscines are well established. Phylogenetic relationships within the group have been extremely puzzling, as most of the evolutionary lineages originated …
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Padrão vocal de reconhecimento específico em Troglodytes musculus (Aves: Passeriformes: Troglodytidae) no Rio de Janeiro
Individuals House Wrens Troglodytes musculus may be recognized by voice as members of this species despite their songs differ very much from each other. ln this work I described the main features of the song of T. musculus and quantified the variation of some of its acoustic properties, in order to …
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Análise filogenética do gênero Formicivora Swainson, 1825 (Aves: Passeriformes: Thamnophilidae) baseada em caracteres morfológicos e vocais
A cladistic analysis of extemal morphology, syringeal morphology, vocalizations and natural history characters was conducted to test the monophyly of Fomlicivora, to define its limits and to develop a phy]ogenetic hypothesis for the genus. Primary homologies were hypothesized and coded as 56 …
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Taxonomy, phylogeny and eco-biogeography of southern African white-eyes (Zosterops spp.) Aves: order Passeriformes, Family: Zosteropidae
The aim of this study was to incorporate all lines of evidence to establish the true taxonomy and phylogeny of southern African Zosterops. Character data sets used include plumage and morphometric measures, vocal characters and molecular (mitochondrial and nuclear) DNA sequences. A broad scale …
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A taxonomic re-appraisal of the Passeriformes (Aves) based on the morphology of the plantar surface of the foot
The taxonomy of the Order Passeriformes, at the family level and above, is still in considerable flux. An historical review of the taxonomy, including traditional studies, and more recent works (particularly DNA-DNA hybridization), is given. The present study attempted to analyse little used …
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Ciclo de muda de passeriformes do sub-bosque de um trecho de mata de encosta na Serra dos Órgãos, Rio de Janeiro, Brasil
Molt is an essential process to birds, mainly because of its importance to the maintenance of plumage. Several aspects of molt in undergrowth passerines, such as molting period, sequence of feather replacement, and rate were studied using a system of scores with banded birds from July 1995 to June …
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Breeding Biology of Cassin’s Finch, Carpodacus Cassinii
… this phenomenon has been undertaken in the order Passeriformes.
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Pituitary Prolactin Content of the Redwinged Blackbird at Pre-Breeding, Breeding and Post-Breeding Intervals
… However, recent work has involved the order Passeriformes. The Redwinged Blackbird (Agelaius phoeniceus) of this order is the subject of the present investigation. Changes in prolactin quantities of the pituitary at various stages in the reproductive cycle are the prime areas of concern. | …
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MYCOBIOME ANALYSIS OF TREES SELECTED BY BLACK-CAPPED CHICKADEES (Poecile atricapillus) AS NEST SITES
… been examined for primary excavating songbirds (Passeriformes). In this study, I examine the communities of fungi in trees selected by black-capped chickadees (<em>Poecile atricapillus</em>) and compare them to communities in non-selected control trees to determine whether chickadee nest trees …
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The allometry of bird flight performance
… accelerating flight in 32 species of songbirds (Passeriformes), including the entire range of body mass in this clade (5-900 g). Jump forces against the ground were recorded with a forceplate. High-speed digital video captured the movement of morphological landmarks in order to estimate …
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The allometry of bird flight performance
… accelerating flight in 32 species of songbirds (Passeriformes), including the entire range of body mass in this clade (5-900 g). Jump forces against the ground were recorded with a forceplate. High-speed digital video captured the movement of morphological landmarks in order to estimate …
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Habitat Relationships and Life History of the Rota Bridled White-eye (Zosterops rotensis)
… bridled white-eye (Zosterops rotensis)(Aves, Passeriformes) has experienced a severe population decline and range restriction over the last four decades. Little is known about this species and factors involved in the decline and range restriction are unclear. This study examined the potential …
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Identificação de parasitos gastrointestinais em aves silvestres apreendidas em fiscalizações preventivas integradas, Bahia, Brasil
… bird orders—Columbiformes, Psittaciformes, and Passeriformes—accounted for 90.5% (391/432) of the animals examined in the study. The analysis of the samples revealed a positivity rate of 54.0% (225/417), with more than 94.0%, or 212 of the 225 positive samples, containing unsporulated oocysts. …
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Evolution and diversity of passerine birds of Australasia
Passeriformes (passerines) is the largest and most diverse order of living birds, comprising over 50% of the world's avifauna. Because of their ubiquity, enormous diversity and exceptional plasticity, passerines represent an excellent vertebrate group for investigating a wide range of evolutionary, …
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Biologia reprodutiva de Formicivora erythronotos (Aves: Thamnophilidae)
… Antwren Formicivora erythronotos (Aves: Passeriformes: Thamnophilidae), an endangered species which is endernic to southwestem Rio de Janeiro State, was studied from July 1997 to December 1999 at Angra dos Reis and Paraty. Most of the 31 nests found were placed by the side of trails and …
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Contaminants at a Shooting Range: Toxicological and Nutritional Significance to Birds and Mammals
… second study focused on lead contamination in Passeriformes, perching birds, and small mammals. Seventeen of 20 birds (85%) (Passerine spp) captured at the shooting range had elevated lead levels (F=5.21, P<0.028), when compared to birds (n=20) at the control site. Nine of 26 (35%) white-footed …
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Behavioural antecedents of altruism: a comparative analysis
… was hypothesized to exist in the avian order Passeriformes between clutch averages (which were considered to be an index of “genetic investment”) and prosocial behaviour. The positive correlations found supported this hypothesis. Social grooming in dairy cows were then investigated. The …
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Multidimensional Approach to Comparative Avian Visual Systems
… on bird groups that are highly speciouse (e.g., Passeriformes), and test some hypotheses and predictions, using modern comparative tools, on the relationship between different visual traits and their association with visual information sampling behaviors. First, I developed a novel method for …
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A morphological phylogeny with a taxonomic revision of African species of Goniodes (Insecta: Phthiraptera: Ischnocera) sensu lato from the Galliformes (Aves)
… species of Ischnocera recorded from broadbills (Passeriformes: Eurylaimidae) and, based on morphology, is placed in the Picicola quadripustulosus species group recorded from the Pittidae (Passeriformes). To evaluate its genetic distinctiveness and phylogenetic position in the Degeeriella complex …
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