Now showing items 11-20 of 80
Individual and sex distinctiveness in bark calls of domestic chinchillas elicited in a distress context
(Acoustical Soc. Amer., 2015)
Animals obtain information about their social environment by means of communication signals, which provide relevant subtle cues for individual recognition. An important requisite for this process is the existence of ...
The endocannabinoid anandamide during lactation increases body fat content and CB1 receptor levels in mice adipose tissue
(Nature Publishing, 2015)
Type 1 cannabinoid receptors (CB1R) modulate energy balance; thus, their premature activation may result in altered physiology of tissues involved in such a function. Activation of CB1R mainly occurs after binding to the ...
Altitude, heredity and body proportions in northern Chile
Recent studies of the effects of hypoxia on human growth and adult size have focused mainly on the variability of single measurements. In this paper we explore changes with altitude and ethnicity (Spanish‐Aymara ancestry) ...
Índice cintura-cadera: su relación con el tamaño de la estructura corporalWaist-hip ratio: its relationship with body frame size.
(Bogotá : Universidad de Ciencias Aplicadas y Ambientales, 1998, 2020)
Physiological flexibility in the Andean lizard Liolaemus bellii: seasonal changes in energy acquisition, storage and expenditure
According to the "barrel model", an organism may be represented by a container, with input energy constraints (foraging, digestion, and absorption) symbolized by funnels connected in tandem, and energy outputs (maintenance, ...
Ovarian cancer and body size: Individual participant meta-analysis including 25,157 women with ovarian cancer from 47 epidemiological studies
(Public Library of Science, 2012)
Background: Only about half the studies that have collected information on the relevance of women's height and body mass index to their risk of developing ovarian cancer have published their results, and findings are ...
Thorson's rule, life-history evolution, and diversification of benthic octopuses (Cephalopoda: Octopodoidea)
(Society for the Study of Evolution, 2018)
Here, we evaluate the so-called Thorson’s rule, which posits that direct-development and larger eggs are favored toward the poles in marine organisms and whose validity been the subject of considerable debate in the ...
Is natural selection promoting sexual dimorphism in the Green-backed Firecrown Hummingbird (Sephanoides Sephaniodes)?
In many hummingbird species there is an opposite pattern of sexual dimorphism in bill length and other morphometric measures of body size. These differences seem to be closely related with differences in foraging ecology ...
Allantoin excretion in the rat
When nucleic acids are catabolized by the rat, most of the purine moiety is excreted in the urine as allantoin. The amount excreted has been found to be higher under physiological conditions associated with increased protein ...