Results 1 to 10 of about 681 (134)

Nucleolar organizer regions and a new chromosome number for Rhea americana (Aves: Rheiformes)

open access: yesGenetics and Molecular Biology, 1998
Sequential banding analysis (Giemsa-C-banding-Ag NOR) of chromosomes of the common rhea (Rhea americana) was performed. Metaphases were obtained by peripheral blood lymphocyte culture and monolayer embryo cell culture.
Ricardo José Gunski
exaly   +6 more sources

Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species [PDF]

open access: yesBmc Ecology and Evolution
Background Different patterns of sex chromosome differentiation are seen in Palaeognathae birds, a lineage that includes the ratites (Struthioniformes, Rheiformes, Apterygiformes, Casuariiformes, and the sister group Tinamiformes).
Príncia Grejo Setti   +2 more
exaly   +3 more sources

REGISTRO DE ENDOPARÁSITO EN RHEA TARAPACENSIS (CHUBB, 1913) (RHEIFORMES: RHEIDAE) DE LA PRECORDILLERA CENTRAL DE ARGENTINA [PDF]

open access: yesNeotropical Helminthology, 2018
El conocimiento sobre endoparásitos en aves silvestres del género Rhea en Argentina es fragmentario e incompleto. En este sentido, el objetivo del trabajo fue determinar mediante análisis de fecas, la presencia de huevos de endoparásitos en Rhea tarapacensis Chubb, 1913 (Rheiformes: Rheidae) en una localidad de la precordillera central de Argentina ...
Cynthia Jesica Gonzalez-Rivas   +2 more
exaly   +8 more sources

Do captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) remember antipredator training? [PDF]

open access: yesRevista Brasileira De Zoologia, 2006
The antipredator training is a powerful tool now being used to help the reintroduced animals to recognise and escape from their predators. Testing the memory capacity of the animals after antipredator training is important to evaluate if the application of the training is worthwhile.
Cristiano Schetini de Azevedo   +1 more
exaly   +12 more sources

ECTOPARASITISMO POR Struthiolipeurus Rheae (HARRISON, 1916) (PHTHIRAPTERA: PHILOPTERIDAE) EM Rhea americana (RHEIFORMES: RHEIDAE) EM CONDIÇÕES CATIVAS NO MUNICÍPIO DE MOSSORÓ, RIO GRANDE DO NORTE, BRASIL

open access: yesCiência Animal Brasileira, 2008
Registrou-se a ocorrência do piolho mastigador Struthiolipeurus rheae parasitando emas (Rhea americana) mantidas em condições conservacionista e científicas no Centro de Multiplicação de Animais Silvestres da Universidade Federal Rural do Semi-Árido no ...
Silvia Maria Mendes Ahid   +2 more
doaj   +3 more sources

Broad-scale recombination pattern in the primitive bird Rhea americana (Ratites, Palaeognathae) [PDF]

open access: yesPLoS ONE, 2017
Birds have genomic and chromosomal features that make them an attractive group to analyze the evolution of recombination rate and the distribution of crossing over.
Mar?a In?s Pigozzi
exaly   +2 more sources

"Spiruroidea" parasitos de "Rheiformes" (Nematoda) [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 1947
J. F. Teixeira de Freitas, Herman Lent
doaj   +3 more sources

Palaeognathae: Apterygiformes, Casuariiformes, Rheiformes, Struthioniformes; Tinamiformes

open access: yes, 2018
The infraclass Palaeognathae includes the flightless ratites (ostrich, emu, rhea, cassowary, kiwi) and the tinamous, a group of related, flighted birds. This chapter focuses on unique anatomy and important non-infectious and infectious diseases of these groups of birds.
exaly   +2 more sources

"THE PRESENT STATE OF KNOWLEDGE OF THE CENOZOIC BIRDS OF ARGENTINA" BY TONNI 1980: FOUR DECADES AFTER

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2023
“The present state of knowledge of the Cenozoic birds of Argentina” published in Contributions in Sciences in 1980, written by the argentine paleontologist Eduardo Pedro Tonni, became a must-read for those interested in the record of fossil birds.
Claudia P. Tambussi   +2 more
doaj   +1 more source

Explotación prehispánica de Rhea americana (ñandú) por grupos cazadores-recolectores del extremo meridional de la cuenca del Plata (Argentina y Uruguay)

open access: yesArqueologia, 2023
En este trabajo nos enfocamos en el registro zooarqueológico de Rhea americana (ñandú) generado por los grupos cazadores-recolectores que ocuparon el extremo meridional de la cuenca del Plata durante el Holoceno tardío.
Alejandro Acosta   +3 more
doaj   +1 more source

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