Results 31 to 40 of about 730 (174)
Sistemática filogenética y el concepto de especie
Realmente no existe el problema de definir un concepto de especie en sistemática. Más bien existe la ambigüedad general de conceptualizar los taxa. En esta revisión se argumenta que primero se debe tomar la decisión respecto al tipo de entidades que se ...
Brent D. Mishler, Efraín de Luna
doaj +1 more source
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann +4 more
wiley +1 more source
La reciente constatación de ADN neandertal en determinadas poblaciones humanas modernas sugiere un cruce limitado entre ambas especies. Esta transferencia genética pudo haber afectado a las capacidades cognitivas de los neandertales y justificar, en ...
Antonio Benítez-Burraco
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La obra teórica de Sigmund Freud contiene múltiples referencias al tópico de la herencia arcaica y la filogenia. El objetivo de este artículo es analizar ese aspecto de su obra, con el cometido de señalar las limitaciones de las interpretaciones más ...
Silvana Vetö Honorato, Mauro Vallejo
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Occurrence and evolutionary inferences about Kranz anatomy in Cyperaceae (Poales)
Cyperaceae is an angiosperm family with the greatest diversity of species with Kranz anatomy. Four different types of Kranz anatomy (chlorocyperoid, eleocharoid, fimbristyloid and rhynchosporoid) have been described for this angiosperm family, and the ...
SHIRLEY MARTINS +2 more
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Sistemática, filogenia y biogeografía de Myrmecophila
<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>El género </span><span>Myrmecophila </span><span>Rolfe ha sido tradicional- mente incluido dentro de un concepto amplio de </span><span>Schomburgkia </span><span>Lindl.
Carnevali Fernández-Concha, Germán +3 more
openaire +4 more sources
The ecology of attraction: Fruit traits and frugivore diversity in neotropical Piper
Read the free Plain Language Summary for this article on the Journal blog. Abstract Fruit traits can benefit plant reproduction by enhancing seed dispersal by mutualistic frugivores (e.g. seed dispersal syndromes), but identifying the role of specific fruit traits in mediating frugivory is challenging because these traits can serve multiple functions ...
Sharlene E. Santana +3 more
wiley +1 more source
Forest conversion for agriculture is a major cause of biodiversity loss in the tropics, but its impacts depend on how broadly they are measured. Using data from across Colombia, one of the most biodiverse countries in the world, we examined how deforestation for cattle farming affects the evolutionary history of bird species.
Giovanny Pérez +7 more
wiley +1 more source
La línea de esmalte observada en la corona de los roedores muroideos tiene formas geométricas que coinciden exactamente con una red plana triangular equilateral. Esta conclusión ayuda a explicar el modelo dental de los muroideos con una nueva perspectiva
A. Ruiz Bustos
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A subgeneric classification is proposed for Triepeolus—the second‐largest genus of cleptoparasitic apid bees in the world—and its sister genus Epeolus, with support from a newly presented dated phylogeny. Phylogenomic analysis based on ultraconserved elements revealed strong support for the monophyly of Triepeolus, which diverged from Epeolus sometime ...
Thomas M. Onuferko +2 more
wiley +1 more source

