scholarly journals SOLITARY ADULT MALES IN A POLYGYNOUS-MATING BAT (CYNOPTERUS SPHINX): A FORCED OPTION OR A STRATEGY?

2005 ◽  
Vol 86 (2) ◽  
pp. 281-286 ◽  
Author(s):  
N. Gopukumar ◽  
T. Karuppudurai ◽  
P. T. Nathan ◽  
K. Sripathi ◽  
G. Arivarignan ◽  
...  
Keyword(s):  
Adult Males ◽  
Cynopterus Sphinx ◽  
Forced Option

scholarly journals Dispersion and site fidelity in a tent-roosting population of the short-nosed fruit bat (Cynopterus sphinx) in southern India

2000 ◽  
Vol 16 (1) ◽  
pp. 117-131 ◽  
Author(s):  
Jay F. Storz ◽  
J. Balasingh ◽  
P. Thiruchenthil Nathan ◽  
K. Emmanuel ◽  
Thomas H. Kunz
Keyword(s):  
Sex Ratio ◽  
Site Fidelity ◽  
Local Population ◽  
Southern India ◽  
Male Mating ◽  
Adult Males ◽  
Single Male ◽  
Fruit Bat ◽  
Cynopterus Sphinx ◽  
Adult Sex Ratio

Patterns of dispersion and site fidelity were investigated in a tent-roosting population of the short-nosed fruit bat, Cynopterus sphinx (Megachiroptera), in southern India. A local population of C. sphinx occupied diurnal roosts in a variable subset of 45 stem tents constructed within the dense foliage of mast trees (Polyalthia longifolia). Individually marked tent-roosting bats were visually censused over the course of a 38-d interval spanning the postpartum oestrus period. On any given day, 33.3–85.7% (mean = 60.8%, SD = 14.2) of adult males roosted singly, with the remainder holding harems of 1–10 breeding females (mean = 3.01, SD = 0.79). Average harem sex ratio was 2.8-fold higher than the adult sex ratio of the total tent-roosting population within the study area, indicating the potential for a high variance in male mating success within a single breeding season. Bats of both sexes typically occupied one primary tent, interspersed with shorter periods of residency in alternate tents. Males exhibited a significantly higher degree of roost fidelity than females. Some females roosted sequentially with different males and with different combinations of females, whereas others remained continuously associated with a single male and/or particular female roostmates over the duration of the census period. There were no statistically significant relationships between physical characteristics of tents and rates of occupancy by males or females. Intermittent transfers by females between groups suggest that the defence of diurnal roosts by males represents a more profitable mating strategy than the direct defence of compositionally labile female groups.

Characterization of Tamm-Horsfall Urinary Glycoprotein

1973 ◽  
Vol 31 ◽  
pp. 420-421
Author(s):  
John P. Robinson ◽  
J. David Puett
Keyword(s):  
Electron Microscopy ◽  
Circular Dichroism ◽  
Secondary Structure ◽  
Quaternary Structure ◽  
Normal Adult ◽  
Morphological Properties ◽  
Adult Males ◽  
Circular Dichroïsm ◽  
Urinary Glycoprotein

Much work has been reported on the chemical, physical and morphological properties of urinary Tamm-Horsfall glycoprotein (THG). Although it was once reported that cystic fibrotic (CF) individuals had a defective THG, more recent data indicate that THG and CF-THG are similar if not identical.No studies on the conformational aspects have been reported on this glycoprotein using circular dichroism (CD). We examined the secondary structure of THG and derivatives under various conditions and have correlated these results with quaternary structure using electron microscopy.THG was prepared from normal adult males and CF-THG from a 16-year old CF female by the method of Tamm and Horsfall. CF female by the method of Tamm and Horsfall.

The associations of age and dentition status with caries treatment in adult males

1988 ◽  
Vol 52 (11) ◽  
pp. 609-614
Author(s):  
JW Reinhardt ◽  
CW Douglass ◽  
JE Alman ◽  
HH Chauncey
Keyword(s):  
Adult Males ◽  
Caries Treatment

HAPTEN-RADIOIMMUNOASSAY OF PLASMA OESTRADIOL

1973 ◽  
Vol 72 (2) ◽  
pp. 330-344 ◽  
Author(s):  
Peter Doerr
Keyword(s):  
Adult Male ◽  
Normal Values ◽  
Normal Adult ◽  
Adult Males ◽  
Reagent Blank ◽  
Keyhole Limpet Haemocyanin ◽  
Ether Extraction ◽  
The Mean ◽  
Assay Precision ◽  
Plasma Oestradiol

ABSTRACT A hapten-radioimmunoassay for plasma oestradiol is described and information about the reliability of the method is given in detail. Oestradiol-3-hemisuccinate coupled to keyhole limpet haemocyanin is used for immunization of rabbits. The antiserum utilized for the assay is characterized by its titer, affinity and specificity. Following ether extraction and NaOH-light petroleum partition oestradiol is separated from crossreacting oestrogens by TLC. Oxidation of oestradiol on the plate is prevented by mercaptoethanol. To separate free and antibody bound ligand 250 μg dextran-coated charcoal per tube is used in the presence of bovine serum gammaglobulin (1 mg/ml). The between-assay precision based on 15 different determinations of control samples from normal adult male plasma was 9.4% (C. V.). The mean reagent blank value of 31 determinations was equivalent to 0.3 pg oestradiol and the detection limit in terms of the 99% confidence limit for a single blank value, was equivalent to 4.3 pg oestradiol. A procedure for detecting plasma blanks is described. Plasma oestradiol is separated from approximately all concomitant substances originally present in the sample by enzymatic conversion into oestrone and a second TLC. No plasma blanks could be detected with respect to normal adult male plasma. Normal values for adult males based on 51 subjects were characterized by a median of 17.2 pg/ml and the 95 percentiles of 9.5–27.6.

Endocannabinoid 2-arachidonoylglycerol plasma level is a BMI-independent biomarker of cardiometabolic risk in adult males with higher relevance in lean and aged conditions

2017 ◽  
Author(s):  
Flaminia Fanelli ◽  
Marco Mezzullo ◽  
Margherita Baccini ◽  
Elena Casadio ◽  
Daniela Ibarra Gasparini ◽  
...  
Keyword(s):  
Plasma Level ◽  
Cardiometabolic Risk ◽  
Adult Males

2276-PUB: A Palatable, Novel Whey Protein Shot Attenuates Postprandial Glycemia in Lean and Centrally Obese Adult Males

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 2276-PUB
Author(s):  
KIERAN SMITH ◽  
GUY S. TAYLOR ◽  
NDUKA OKWOSE ◽  
DEAN M. ALLERTON ◽  
LISE HOEJ BRUNSGAARD ◽  
...  
Keyword(s):  
Whey Protein ◽  
Obese Adult ◽  
Adult Males ◽  
Postprandial Glycemia

Size-At-Age Variability and Sexual Dimorphism of Morphometric Characteristics in the Late Ontogenesis of the Marsh Frog, Pelophylax Ridibundus (Anura, Ranidae), from Terrytory of Crimea

2019 ◽  
Vol 53 (4) ◽  
pp. 325-334
Author(s):  
V. N. Peskov ◽  
N. A. Petrenko ◽  
V. Yu. Reminnyi
Keyword(s):  
Age Groups ◽  
The Body ◽  
Adult Males ◽  
Morphometric Characteristics ◽  
Morphometric Characters ◽  
Mean Values ◽  
Marsh Frog ◽  
Males And Females ◽  
Size At Age ◽  
Linear Body

Abstract We study size-at-age and sexual variability of morphometric characteristics of the marsh frog. According to the size of the body, males were divided into three size-age groups (juvenis, subadultus, adultus), females — into four groups (juvenis, subadultus, adultus, adultus-I). We found that the chronological age of frogs (skeletochronology) does not always correspond to their biological age (size and proportions of the body). We noted that the semi-adult males are reliably larger than females by mean values of 26 studied morphometric characters. Males and females of “adultus” group do not differ by linear body size, significant differences were found in body proportions (7 characters). For the females of “adultus-I” group, the mean values of 26 characters are significantly larger than for “adultus” males. The results of our study showed that with the age of the marsh frog, the level of exhibition, directionality and structure of morphometric sex differences changes.

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