Results 121 to 130 of about 59,296 (338)

Primera cita de Leptodactylus ocellatus (Linnaeus, 1758) (Amphibia, Anura, Leptodactylidae) en Bolivia y comentarios sobre especies próximas

open access: yesGraellsia, 1999
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
doaj   +1 more source

Advertisement call of a population of the nurse frog Leucostethus fraterdanieli (Anura: Dendrobatidae), with notes on its natural history

open access: yesBiota Colombiana, 2021
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
doaj   +1 more source

Leptodactylus syphax [PDF]

open access: yes, 2010
Number of Pages: 9Integrative BiologyGeological ...
de Sá, Rafael O.   +2 more
core   +1 more source

On the Morphogenesis of the Epithelial Hypophysis of the Tailed Amphibia.With 14 Text Figures.

open access: yes
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
semanticscholar   +1 more source

Lessons in cognition: A review of maze designs and procedures used to measure spatial learning in fish

open access: yesJournal of Fish Biology, EarlyView.
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
wiley   +1 more source

UTILIZAREA PRODUCȚIEI PRIMARE ALGALE DE CĂTRE CONSUMATORII DIN VERIGILE TROFICE SUPERIOARE

open access: yesStudia Universitatis Moldaviae: Stiinte reale si ale naturii
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
doaj  

Glycopattern analysis and structure of the egg extra-cellular matrix in the Apennine yellow-bellied toad, Bombina pachypus (Anura: Bombinatoridae)

open access: yesFolia Histochemica et Cytobiologica, 2011
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
doaj  

On the diversity of the vertebrate fauna (excluding fishes) of Panchet Hill (Garh Panchkot), Purulia, West Bengal, India

open access: yesJournal of Threatened Taxa, 2018
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
doaj   +1 more source

Osteopilus vastus [PDF]

open access: yes, 2004
Number of Pages: 3Integrative BiologyGeological ...
Henderson, Robert W., Henderson, Rose M.
core   +1 more source

Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon

open access: yesJournal of Fish Biology, EarlyView.
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
wiley   +1 more source

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