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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Individual features in vocalization of the Mashona mole-rat (\kur{Fukomys darlingi})
 DVOŘÁKOVÁ, Veronika
The significance of vocal communication in subterranean rodents was confirmed. In this study I tested whether vocalization of the Mashona mole-rats (Fukomys darlingi) differs individually and what information about signaller are these mole-rats able to obtain using only acoustic cues.
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Daily energy expenditure of subterranean rodent, mole-rat \kur{Fukomys darlingi}, in the relation with group size and temperature
 WIEDENOVÁ, Pavlína
Daily energy expenditure (DEE) was examined in the social subterranean rodent Mashona mole-rat (Fukomys darlingi) by the long-term (24 hours) indirect calorimetry. Individuals´ DEEs were compared with DEEs of grouped mole-rats (groups of 2, 3, 4 and 7) to establish the role of social thermoregulation (?huddling?) in this species at two different temperatures (20 and 30°C). The average DEE of single isolated individual was 1.84 ? 0.25 mlO2 g-1h-1 at Ta = 30°C and 2.99 ? 0.34 mlO2 g-1h-1 at Ta = 20°C. The influence of group size on daily energy expenditure (DEE) was observed. The energy savings rose with the increasing number of individuals up to 33.77% in group of seven. Maximal energy savings at 30°C were reached in group of three animals and did not increase further with an increasing number of animas in the group. Similarly at 20°C the maximal savings were observed when seven animals were present. My results confirm that social thermoregulation is an essential mechanism that saves energy expenditure of F. darlingi, which is important in the food-scarce underground environment.
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The reproductive biology of the Mashona mole - rat (\kur{Fukomys darlingi}) from southern Malawi.
 JERKOVIČOVÁ, Diana
The population of the social Mashona mole - rat (Fukomys darlingi) from southern Malawi differs from the population from Zimbabwe in many aspects of its biology. In this study I have found remarkable differences also in the reproductive biology of these two populations. The most signifiant distinctions are double lenght of gestation and litters with more and larger pups in Malawian population. The analysis of reproductive and ecological parameters in bathyergids did not showed obvious differences between social and solitery species in terms of reproductive and ecological variables, but rather between species from different climatic regions.
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