On Crocodilus johnstoni, Krefft
نویسندگان
چکیده
منابع مشابه
The pattern of growth of Clytia johnstoni.
1. A quantitative study of the growth of Clytia johnstoni is described. 2. The distance between hydranths is most commonly between 3 and 4 mm. The average internode lengths and their variability frequently differs not only between colonies but also between stolons of a single colony. The differences are therefore unlikely to be genetic ones. Occasionally much longer internodes occur (up to 8 mm...
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ARMANDO H. ESCOBEDO-GALVÁN, FABIO G. CUPUL-MAGAÑA & JULIÁN A. VELASCO Laboratorio de Análisis Espaciales, Instituto de Biología, Universidad Nacional Autónoma de México, 04510 México D.F., México Centro Universitario de la Costa, Universidad de Guadalajara, Av. Universidad de Guadalajara No. 203, Delegación Ixtapa, C.P. 48280, Puerto Vallarta, Jalisco, México Corresponding author. E-mail: elcho...
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Giraffidae is the only family of ruminants that is represented by two extant species; Okapia johnstoni and Giraffa camelopardalis. Of these taxa, O. johnstoni represents a typical short-necked ungulate, and G. camelopardalis exemplifies the most extreme cervical elongation seen in any ruminant. We utilize these two species to provide a comprehensive anatomic description of the cervical vertebra...
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We studied growth of the caiman, Caiman crocodilus yacare, in the Brazilian Pantanal for 27 years between 1987 and 2013.We recaptured 647 of 7769 C. c. yacare initially marked in an area of 50 km(2), in two ranches. We were able to determine size at age accurately for 24 male and17 female caimans that had been marked at hatching or less than 1 year old, and recaptured over periods of 5 to 24 ye...
متن کاملUrinary corticosteroid excretion patterns in the okapi (Okapia johnstoni).
Stress is known to alter a variety of biological processes, including behavior and reproduction. It is therefore important to understand the stress levels of animals in captivity, especially those for whom captive breeding is a priority, such as the okapi. Levels of stress hormones can be measured from samples collected noninvasively, such as urine or feces, which are preferable with nondomesti...
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ژورنال
عنوان ژورنال: Proceedings of the Zoological Society of London
سال: 2009
ISSN: 0370-2774
DOI: 10.1111/j.1096-3642.1874.tb02469.x