Results 121 to 130 of about 59,296 (338)
Se revisa y discute la distribución de Leptodactylus ocellatus, L. chaquensis y L. macrosternum en Bolivia. Mientras que, morfológicamente, L. chaquensis y L. ocellatus se diferencian fácilmente, L. chaquensis y L.
I. De la Riva, M. Maldonado
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We describe the advertisement call of seven males and observations on the natural history related to the parental attention by males, of a population of nurse frogs attributed to the Leucostethus fraterdanieli complex from the Central Cordillera in the ...
Julián A. Rojas-Morales+2 more
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Number of Pages: 9Integrative BiologyGeological ...
de Sá, Rafael O.+2 more
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On the Morphogenesis of the Epithelial Hypophysis of the Tailed Amphibia.With 14 Text Figures.
The hypophysis of urodeles has been morphologically studied by many authors such as Haller ('98), Burckhardt ('91), Stendell ('14), and others. But works on its morphogenesis are rare.
Ryogen Sumi
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Abstract The use of different mazes to assess spatial learning has become more common in fish behavior studies in recent decades. This increase in fish cognition research has opened the door to numerous possibilities for exciting and diverse questions, such as identifying ecological drivers of spatial cognition and understanding the role individual ...
Amelia Munson, Cairsty DePasquale
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UTILIZAREA PRODUCȚIEI PRIMARE ALGALE DE CĂTRE CONSUMATORII DIN VERIGILE TROFICE SUPERIOARE
Studiul prezintă rezultatele investigațiilor privind utilizarea speciilor de microalge Chlorella vulgaris Beijerinck 1890 și Oscillatoria amphibia C.Agardh ex Gomont 1892, ca sursă de hrană pentru populația de Paramecium caudatum Ehrenberg, 1834 ...
USM ADMIN
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We studied the glycopatterns and ultrastructure of the extra-cellular matrix (ECM) of the egg of theApennine yellow-bellied toad Bombina pachypus, by light and electron microscopy in order to determine structure,chemical composition and function ...
Giovanni Scillitani+3 more
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The present study was conducted at Panchet Hill (Garh Panchkot), Purulia, West Bengal between June 2013 and May 2015. Multiple methods were used for making a consolidated checklist and comments on the relative abundance of vertebrate diversity ...
Sanjib Chattopadhyay+2 more
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Number of Pages: 3Integrative BiologyGeological ...
Henderson, Robert W., Henderson, Rose M.
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Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon
Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster+2 more
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