scholarly journals Skeletogenesis and sequence heterochrony in rodent evolution, with particular emphasis on the African striped mouse, Rhabdomys pumilio (Mammalia)

2010 ◽  
Vol 10 (3) ◽  
pp. 243-258 ◽  
Author(s):  
Laura A. B. Wilson ◽  
Carsten Schradin ◽  
Christian Mitgutsch ◽  
Fernando C. Galliari ◽  
Andrea Mess ◽  
...  
Keyword(s):  
Rhabdomys Pumilio ◽  
Sequence Heterochrony

scholarly journals Small mammals as hosts of immature ixodid ticks

2005 ◽  
Vol 72 (3) ◽  
Author(s):  
I.G. Horak ◽  
L.J. Fourie ◽  
L.E.O. Braack
Keyword(s):  
Small Mammals ◽  
Tick Species ◽  
Ixodid Tick ◽  
Ixodid Ticks ◽  
Free State ◽  
Immature Stages ◽  
Rhabdomys Pumilio ◽  
Haemaphysalis Leachi ◽  
Lepus Capensis ◽  
Multimammate Mice

Two hundred and twenty-five small mammals belonging to 16 species were examined for ticks in Free State, Mpumalanga and Limpopo Provinces, South Africa, and 18 ixodid tick species, of which two could only be identified to genus level, were recovered. Scrub hares, Lepus saxatilis, and Cape hares, Lepus capensis, harboured the largest number of tick species. In Free State Province Namaqua rock mice, Aethomys namaquensis, and four-striped grass mice, Rhabdomys pumilio, were good hosts of the immature stages of Haemaphysalis leachi and Rhipicephalus gertrudae, while in Mpumalanga and Limpopo Provinces red veld rats, Aethomys chrysophilus, Namaqua rock mice and Natal multimammate mice, Mastomys natalensis were good hosts of H. leachi and Rhipicephalus simus. Haemaphysalis leachi was the only tick recovered from animals in all three provinces.

scholarly journals Small mammals of the Addo Elephant National Park

Koedoe ◽  
1975 ◽  
Vol 18 (1) ◽  
Author(s):  
P. Swanepoel
Keyword(s):  
Introduced Species ◽  
Small Mammals ◽  
National Park ◽  
Sex Ratios ◽  
Rattus Rattus ◽  
Reproductive Activity ◽  
Body Measurements ◽  
Suricata Suricatta ◽  
Rhabdomys Pumilio ◽  
Mus Minutoides

A survey of the small mammals of the Addo Elephant National Park resulted in a checklist, as well as information on relative numbers, distribution within the Park, reproductive activity, sex ratios, and body measurements. Forty mammals species occur in the Park, while three re-introduced species probably do not occur any longer. Of the 40 species 28 are considered small mammals comprising 13 rodent, eight carnivore, two shrew, two bat, one primate and one lagomorph species, as well as the aardvark: Crociduraflavescens, C. cyanea infumata, Rousettus aegyptiacus, Eptesicus capensis, Cercopithecus pygerythrus, Canis mesomelas, Ictonyx striatus, Poecilogale albinucha, Genetta sp., Herpestes pulverulentus, Suricata suricatta, Proteles cristatus, Felis caracal, Orycteropus afer, Lepus saxatilis, Cryptomys hottentotus, Hystrix africae-australis, Pedetes capensis, Graphiurus murinus, Aethomys namaquensis, Praomys natalensis, Rhabdomys pumilio, Mus minutoides, Rattus rattus, Saccostomys campestris, Desmodillus auricularis, Otomys irroratus and 0. unisulcatus.

Effects of supplementary food on the winter inhibition of reproduction in male and female four-striped field mice (Rhabdomys pumilio)

2005 ◽  
Vol 17 (4) ◽  
pp. 393 ◽  
Author(s):  
C. Jackson ◽  
R. T. F. Bernard
Keyword(s):  
Reproductive Activity ◽  
Reproductive Organs ◽  
Food Supplementation ◽  
Ovarian Activity ◽  
Eastern Cape ◽  
Additional Food ◽  
Male And Female ◽  
Supplementary Food ◽  
Rhabdomys Pumilio ◽  
Seasonally Breeding

The effects of winter food supplementation on reproduction in the seasonally breeding four-striped field mouse Rhabdomys pumilio were investigated at Mountain Zebra National Park in the Eastern Cape Province of South Africa. On both control and supplemented grids, reproductive activity in females was inhibited; no pregnant females were collected and juveniles were only present in the first winter month. The provision of additional food resulted in an increase in body mass and mass of the male and female reproductive organs. However, all males, from both grids, were spermatogenically active. Ovarian activity was not stimulated by the provision of additional food, but the development of the uterus was and the endometrium was thicker and more vascularised in mice from the supplemented grid than from the control grid. We conclude that seasonal reproduction in R. pumilio is controlled by the females, in which reproductive activity is inhibited in winter. However, the provision of supplementary food was not sufficient to override the reproductive inhibition.

scholarly journals Basal blood glucose concentration in free-living striped mice is influenced by food availability, ambient temperature and social tactic

2015 ◽  
Vol 11 (5) ◽  
pp. 20150208 ◽  
Author(s):  
Carsten Schradin ◽  
Neville Pillay ◽  
Anna Kondratyeva ◽  
Chi-Hang Yuen ◽  
Ivana Schoepf ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Ambient Temperature ◽  
Food Availability ◽  
Glucose Concentration ◽  
Extended Family ◽  
Blood Glucose Concentration ◽  
Energy Regulation ◽  
Free Living ◽  
Blood Samples ◽  
Rhabdomys Pumilio

Vertebrates obtain most of their energy through food, which they store mainly as body fat or glycogen, with glucose being the main energy source circulating in the blood. Basal blood glucose concentration (bBGC) is expected to remain in a narrow homeostatic range. We studied the extent to which bBGC in free-living African striped mice ( Rhabdomys pumilio ) is influenced by ecological factors with a bearing on energy regulation, i.e. food availability, abiotic environmental variation and social tactic. Striped mice typically form extended family groups that huddle together at night, reducing energetic costs of thermoregulation, but solitary individuals also occur in the population. We analysed 2827 blood samples from 1008 individuals of seven different social categories that experienced considerable variation in food supply and abiotic condition. Blood samples were taken from mice in the morning after the overnight fast and before foraging. bBGC increased significantly with food plant abundance and decreased significantly with minimum daily ambient temperature. Solitary striped mice had significantly higher bBGC than group-living striped mice. Our results suggest that adaptive responses of bBGC occur and we found large natural variation, indicating that bBGC spans a far greater homeostatic range than previously thought.

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