Results 11 to 20 of about 501 (134)
Presentamos un caso de muerte súbita de una lactante de tres meses de edad. La autopsia reveló una miocardiopatía hipertrófica y la muestra de sangre del cordón umbilical almacenada fue utilizada para análisis molecular.
Eliana del Pliar Garzón Venegas +8 more
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Introducción y objetivos: La biología floral de Lantana camara, nativa del Centro y Sur de América e invasora cosmopolita, tiene aspectos desconocidos y controvertidos.
María T. Amela García +8 more
doaj +1 more source
In rats with polycystic ovarian syndrome (PCOS) induced by estradiol valerate (EV) injection, sectioning of the vagus nerve in the juvenile stage restores ovulatory function, suggesting that the vagus nerve stimulates the onset and development of PCOS ...
Rosa Linares +8 more
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We report the first case of egg‐burying behaviour in a neotropical direct‐developing frog. Both parents remained near the nest during the following day. This rare observation sheds light over the intricate reproductive behaviours of terrestrial amphibians and suggests that the evolution of direct development has selected for highly specialized forms of
Francesca Nicole Angiolani‐Larrea +6 more
wiley +1 more source
First nesting record of The Balsas Screech Owl (Megascops seductus)
El Tecolote del Balsas (Megascops seductus) es un búho endémico de México, que se distribuye en la cuenca del río Balsas. Es una especie moderadamente común en su área de distribución; sin embargo, la información sobre su biología reproductiva es escasa.
David Ramírez-Adame +1 more
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Descripción del nido y huevos de la matraca serrana (Campylorhynchus gularis)
El nido y huevos de la matraca serrana (Campylorhynchus gularis) han permanecido como formalmente no descritos de acuerdo con algunos autores. Aquí, describimos las características físicas y las dimensiones promedio del nido y huevos de una población del
Adrián Ceja Madrigal +1 more
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Estudios bajo condiciones de laboratorio sobre la historia natural de roedores silvestres permiten detallar ciertos atributos difíciles de estudiar en sus ambientes, como es el caso del desarrollo de las camadas.
Camilo Angarita +1 more
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Pollen, Tapetum, and Orbicule Development in Colletia paradoxa and Discaria americana (Rhamnaceae)
Tapetum, orbicule, and pollen grain ontogeny in Colletia paradoxa and Discaria americana were studied with transmission electron microscopy (TEM). The ultrastructural changes observed during the different stages of development in the tapetal cells and ...
M. Gotelli, B. Galati, D. Medan
doaj +1 more source
Pollination ecology of Syagrus smithii (Arecaceae), a palm with cantharophily from Colombian Amazon
From the evaluation floral morphology, reproductive phenology, floral biology, floral visitors and pollinator’s definition, the reproduction strategy of a Syagrus smithii (Arecaeae) in a Colombian Amazonia region was described. Syagrus smithii palms grow
Nilson Y. Guerrero-Olaya +1 more
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Community‐level fitted relationship between spatial association Lij and trait dissimilarity (tDij) at the fine spatial scale (r = 40 mm; where r represents the radius around individuals of the focal species). Summary Predicting coexistence in species‐rich plant communities requires understanding the role of functional traits in species interactions and
Ezequiel Antorán +6 more
wiley +1 more source

