Daily activity patterns in the giant root rat (Tachyoryctes macrocephalus), a fossorial rodent from the Afro-alpine zone of the Bale Mountains, Ethiopia

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895375" target="_blank" >RIV/60076658:12310/17:43895375 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/17:00506409
Result on the web
<a href="http://onlinelibrary.wiley.com/doi/10.1111/jzo.12441/abstract;jsessionid=058249C0120E9451AA9580226E1ED838.f02t04" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/jzo.12441/abstract;jsessionid=058249C0120E9451AA9580226E1ED838.f02t04</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jzo.12441" target="_blank" >10.1111/jzo.12441</a>

Result language
angličtina
Original language name
Daily activity patterns in the giant root rat (Tachyoryctes macrocephalus), a fossorial rodent from the Afro-alpine zone of the Bale Mountains, Ethiopia
Original language description
Rodents adjust their activity to environmental conditions. The adjustment can be especially pronounced in climatically challenging environments. We studied activity patterns in the free-living giant root rat (Tachyoryctes macrocephalus), a large fossorial rodent endemic to the Afro-alpine ecosystem of the Bale Mountains, Ethiopia, by means of radio telemetry. We radio-tracked 17 adults during two periods of a dry season differing in temperature and food supply. In both periods, root rats spent a large part of the day (around 79%) in their underground nests. The proportion of time the animals were active aboveground decreased from 6.9 to 3.8% between the early and late dry season, which contradicts our prediction that aboveground activity would increase under lower food supply. We propose that there are thermoregulation advantages of prolonged aboveground activity during warm hours in the colder early dry season. In both periods, the root rats displayed diurnal activity with a unimodal pattern positively related to the temperature at the soil surface. Unlike in some other burrowing rodents, there was no tendency to decrease activity in the warmest part of the day even in the relatively warm late dry season.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10613 - Zoology

Project
<a href="/en/project/GAP506%2F11%2F1512" target="_blank" >GAP506/11/1512: Into the underground: Comparative study of rodents with different level of adaptation to subterranean life.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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