Results 1 to 10 of about 160 (91)

Examining the molecular basis of coat color in a nocturnal primate family (Lorisidae) [PDF]

open access: yesEcology and Evolution, 2021
Organisms use color for camouflage, sexual signaling, or as a warning sign of danger. Primates are one of the most vibrantly colored Orders of mammals.
Rachel A. Munds   +4 more
doaj   +2 more sources

Karyotypic characterization of Ramphastidae (Piciformes, Aves)

open access: yesGenetics and Molecular Biology, 2002
The karyotypes of nine species of the family Ramphastidae were determined and compared with that of the toco toucan (Ramphastos toco), the only ramphastid karyotype so far reported in the literature.
Recco-Pimentel Shirlei M
exaly   +3 more sources

Genotyping and antimicrobial susceptibility of Clostridium perfringens isolated from Tinamidae, Cracidae and Ramphastidae species in Brazil

open access: yesCiencia Rural, 2014
The aim of this study was to isolate, genotype and evaluate the antimicrobial susceptibility of Clostridium perfringens found in species Tinamidae, Cracidae and Ramphastidae in Brazil. C.
Rodrigo Otávio Silveira Silva   +2 more
exaly   +3 more sources

An examination of species limits in the Aulacorhynchus “prasinus” toucanet complex (Aves: Ramphastidae) [PDF]

open access: yesPeerJ, 2016
The number of species recognized in Aulacorhynchus toucanets has varied tremendously over the past century. Revisors seem to disagree on whether head and bill coloration are useful indicators of species limits, especially in the A.
Kevin Winker
doaj   +3 more sources

The historical biogeography of Pteroglossus aracaris (Aves, Piciformes, Ramphastidae) based on Bayesian analysis of mitochondrial DNA sequences

open access: yesGenetics and Molecular Biology, 2008
Most Neotropical birds, including Pteroglossus aracaris, do not have an adequate fossil record to be used as time constraints in molecular dating.
Sérgio L Pereira, Anita Wajntal
exaly   +2 more sources

Diversification of Ramphastinae (Aves, Ramphastidae) prior to the Cretaceous/Tertiary boundary as shown by molecular clock of mtDNA sequences

open access: yesGenetics and Molecular Biology, 2003
Partial cytochrome b and 12S rDNA mitochondrial DNA sequences of eight representatives of the Ramphastidae family were analyzed. We applied the linearized tree method to identify sequences evolving at similar rates and estimated the divergence times ...
Sérgio L Pereira   +2 more
exaly   +2 more sources

Cestode parasites (Neodermata, Platyhelminthes) from Malaysian birds, with description of five new species

open access: yesEuropean Journal of Taxonomy, 2020
We studied the cestode fauna (Platyhelminthes) of forest birds in Malaysia (Selangor) collected during a field trip in 2010. Ninety birds of 37 species were examined and global prevalence of cestodes was 15.3%. Five new taxa are described: Emberizotaenia
Jean Mariaux, Boyko B. Georgiev
doaj   +1 more source

Evolution of bill size in relation to body size in toucans and hornbills (Aves: Piciformes and Bucerotiformes)

open access: yesZoologia (Curitiba), 2014
Evidence that the bill of the Toco Toucan, Ramphastos toco Statius Muller, 1776, has a specialized role in heat dissipation suggests a new function for the large and light-weight bill of the toucan family (Piciformes: Ramphastidae).
Austin L. Hughes
doaj   +1 more source

A Review of the Trade in Toucans (Ramphastidae): Levels of Trade in Species, Source and Sink Countries, Effects from Governance Actions and Conservation Concerns

open access: yesConservation, 2023
Utilising wildlife as natural resources has a long history and wide appeal for many nations, while seeking international wildlife that is sustainably managed is the primary responsibility of the Convention on International Trade in Endangered Species of ...
Angus I. Carpenter, Jennifer Slade
doaj   +1 more source

Occurrence of endoparasites in Ramphastidae (Aves: Piciformes) in São Paulo Zoo

open access: yesHelminthologia, 2017
Ramphastidae (Aves: Piciformes) are animals recognized for their exuberant colours and long bill, with distribution range from south Mexico to north Argentina. They are important seed dispersers eating little vertebrates eventually.
Fernandes Chagas C. R.   +4 more
doaj   +1 more source

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