Results 91 to 100 of about 26,566 (197)

Co-option of an endogenous retrovirus envelope for host defense in hominid ancestors [PDF]

open access: yes, 2017
Endogenous retroviral sequences provide a molecular fossil record of ancient infections whose analysis might illuminate mechanisms of viral extinction.
Bieniasz, Paul D.   +2 more
core   +2 more sources

Caracterización citogenética de una pareja de Aotus (Cebidae: Platyrrhini): Estudio preliminar

open access: yesActa Biológica Colombiana, 2001
Aotuses el único primate nocturno del neotrópico, este género se distribuye desde Panamáhasta Argentina, teniendo una alta radiación en la región Amazónica, especialmente en Perúy Ecuador.
J. Hernández   +4 more
doaj  

Phylogeography, taxonomy, and conservation of the endangered brown howler monkey, Alouatta guariba (Primates, Atelidae), of the Atlantic Forest

open access: yesFrontiers in Genetics
The brown howler, Alouatta guariba, endemic to the Atlantic Forest of Brazil and Argentina, is threatened by habitat loss and fragmentation, hunting, and its susceptibility to yellow fever.
Luciana I. Oklander   +26 more
doaj   +1 more source

Craniometrical Studies on Alouatta seniculus - from the view point of sex differences and age changes - [PDF]

open access: yes, 1979
1978 Grant-in-Aid for Scientific Research (研究課題番号 ...
Watanabe, Tsuyoshi
core  

Phylogeny, molecular dating and zoogeographic history of the titi monkeys (Callicebus, Pitheciidae) of eastern Brazil [PDF]

open access: yes, 2018
The titi monkeys belong to a genus of New World primates endemic to South America, which were recently reclassified in three genera (Cheracebus, Plecturocebus and Callicebus).
Boubli, JP   +10 more
core   +2 more sources

Phylogenetic approaches for studying competition in mammals

open access: yes, 2009
Interspecific competition is often proposed to shape mammalian evolution. Many studies use trait and distribution data on extant species, but this ignores temporal aspects of competition.
Cooper, Natalie, Cooper, Natalie
core   +1 more source

Ejakulatgewinnung und Ejakulatanalyse bei Krallenaffen (Callitrichidae; Platyrrhini; Primates)

open access: yes, 2005
Die Verfügbarkeit ausreichender Mengen von Spermatozoen guter Qualität ist ein Faktor, der die reproduktionsbiologische Forschung sowie die Entwicklung assistierender Reproduktionstechniken bei Primaten stark einschränkt. Als Routinemethode bei Primaten gilt die Elektroejakulation unter Verwendung von Rektalsonden (rectal probe electroejaculation, RPE).
Schneiders, Alexander   +1 more
openaire   +3 more sources

Caudal Vertebral Body Articular Surface Morphology Correlates with Functional Tail Use in Anthropoid Primates [PDF]

open access: yes, 2014
Prehensile tails, capable of suspending the entire body weight of an animal, have evolved in parallel in New World monkeys (Platyrrhini): once in the Atelinae (Alouatta, Ateles, Brachyteles, Lagothrix), and once in the Cebinae (Cebus, Sapajus ...
Deane, Andrew S.   +3 more
core   +1 more source

Molecular cladistic markers in New World monkey phylogeny (Platyrrhini, Primates)

open access: yesMolecular Phylogenetics and Evolution, 2003
Transpositions of primate-specific Alu elements were applied as molecular cladistic markers in a phylogenetic analysis of South American primates. Seventy-four human and platyrrhine loci containing intronic Alu elements were PCR screened in various New World monkeys and the human outgroup to detect the presence of orthologous retrotransposons ...
Singer, Silke S   +3 more
openaire   +3 more sources

Distribution patterns of Neotropical primates (Platyrrhini) based on Parsimony Analysis of Endemicity

open access: yesBrazilian Journal of Biology
The Parsimony Analysis of Endemicity (PAE) is a method of historical biogeography that is used for detecting and connecting areas of endemism. Based on data on the distribution of Neotropical primates, we constructed matrices using quadrats, interfluvial
A. Goldani   +2 more
doaj   +1 more source

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