Results 111 to 120 of about 272 (133)
Some of the next articles are maybe not open access.

INTRAOCULAR PRESSURE DETERMINATION IN CLINICALLY NORMAL RED-FOOTED TORTOISE (GEOCHELONE CARBONARIA)

Journal of Zoo and Wildlife Medicine, 2002
Intraocular pressure (IOP) reflects a balance between aqueous humor production and outflow and is often an essential ophthalmic diagnostic procedure in animals. The objective of this study was to estimate IOP in clinically normal red-footed tortoises (Geochelone carbonaria) of various sizes by using applanation tonometry.
Concepta Mcmanus
exaly   +3 more sources

Effect of thiol reagents on functional properties and heme oxidation in the hemoglobin of Geochelone carbonaria

IUBMB Life, 1996
AbstractThe reaction of thiol reagents with G. carbonaria hemoglobin was studied, and the oxygen equilibrium and kinetic of oxidation of derivatives determined. The oxygen affinity and kinetic of oxidation of hemoglobin derivatives were modified to various extents depending on the nature of thiol reagents used.
M A, Torsoni   +5 more
exaly   +3 more sources

Tortoises (Geochelone carbonaria) in Panama: Distribution and Variation

American Midland Naturalist, 1963
A series of 36 specimens of Geochelone carbonaria from the provinces of Darien and San Blas, Panama, definitely establishes the occurrence of that species in Panama. A population on Isla Pinos (San Blas group) may or may not be natural. The closely related species G.
exaly   +2 more sources

The influence of temperature acclimation on O2-consumption in the turtle Geochelone carbonaria

Comparative Biochemistry and Physiology A, Comparative Physiology, 1985
Abstract 1. 1. The O 2 consumption of the turtle Geochelone carbonaria was measured at 15, 20 and 30°C environmental temperature with the animals either acclimated or not to these environments. 2. 2. An inverse compensation pattern was found. 3. 3. At 20°C acclimation temperature no significant variation of O 2 consumption in relation
Santospinto, F. N.   +3 more
exaly   +3 more sources

Social learning in the red-footed Tortoise (Geochelone carbonaria)

open access: yes, 2010
The ability to learn socially is adaptive as it can potentially save on the costs of learning via trial and error. Learning by observing a conspecific has long been thought to be an ability restricted to group-living species like mammals, birds and fish.
Künstner, Karin
openaire   +2 more sources

Flexibility of digestive responses in two generalist herbivores, the tortoises Geochelone carbonaria and Geochelone denticulata

Oecologia, 1989
To test the prediction that digestive responses digestibility, intake and passage time-of generalist herbivores vary with different diets, feeding trials were conducted in Venezuela with two sympatric tortoise species, Geochelone carbonaria and G. denticulata. Three single-species diets (two fruit, one foliage) were fed to both species.
openaire   +2 more sources

Seed Dispersal by Geochelone carbonaria and Geochelone denticulata in Northwestern Brazil1

Biotropica, 2006
ABSTRACTThe role of red‐footed tortoises (Geochelone carbonaria) and yellow‐footed tortoises (G. denticulata) as seed dispersal agents was investigated in northwestern Brazil from 5 to 26 January 2002 by analyzing fecal samples for frequency and viability of seed species and estimating daily displacement of tortoises from recaptured and thread‐trailed ...
Joel N. Strong, José M. V. Fragoso
openaire   +1 more source

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