Social thermoregulation and socio-physiological effect in the subterranean Mashona mole-rat (Fukomys darlingi)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897632" target="_blank" >RIV/60076658:12310/18:43897632 - isvavai.cz</a>

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/pii/S0306456518301943?token=B64D63DB2AE08D9EFB34663E26F899D6AC1106AB147C890EBEABFED385F818AC641281ACF4DCA879E8D525C018793B7C" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0306456518301943?token=B64D63DB2AE08D9EFB34663E26F899D6AC1106AB147C890EBEABFED385F818AC641281ACF4DCA879E8D525C018793B7C</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jtherbio.2018.10.020" target="_blank" >10.1016/j.jtherbio.2018.10.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Social thermoregulation and socio-physiological effect in the subterranean Mashona mole-rat (Fukomys darlingi)

Popis výsledku v původním jazyce

A strict underground style of life is one of the greatest challenges for mammals partly due to the high energetic cost of obtaining food by digging through a mechanically resistant substrate. Any energy saving adaptation, for example the effect of social thermoregulation, is thus very important for subterranean mammals. It has also been suggested that social mammals may suffer from &quot;isolation stress&quot; if measured alone, because the presence of other family member(s) may decrease the stress levels and thus their metabolic rates. This phenomenon known as a socio-physiological effect should be conspicuous when the metabolism of huddling individuals is measured within a species&apos; thermoneutral zone (TNZ), where no energetic costs for body warming or cooling exist. In our study, we measured the resting metabolic rates of a social species of African mole-rat, the Mashona mole-rat (Fukomys darlingi), in individuals, pairs and groups of three to eight individuals. Measurements were carried out at ambient temperature below the species&apos; TNZ (20 degrees C) to test the effect of social thermoregulation and at a temperature within the species&apos; TNZ (30 degrees C) to test the socio-physiological effect. In pairs, the Mashona mole-rat saved 25% of its individual energetic expenses at the temperature below the TNZ. With increasing group size, energetic savings rose up to four animals, but no savings were found in larger groups. At the temperature within the TNZ, mole-rats saved 10% of individual energetic expenses in pairs, but the difference was not significant. Also, no energetic savings were found in larger groups within the TNZ. Our results on thermoregulatory savings in the TNZ are in contrast with extremely high energetic savings found by other authors in different mole-rat species.

Název v anglickém jazyce

Social thermoregulation and socio-physiological effect in the subterranean Mashona mole-rat (Fukomys darlingi)

Popis výsledku anglicky

A strict underground style of life is one of the greatest challenges for mammals partly due to the high energetic cost of obtaining food by digging through a mechanically resistant substrate. Any energy saving adaptation, for example the effect of social thermoregulation, is thus very important for subterranean mammals. It has also been suggested that social mammals may suffer from &quot;isolation stress&quot; if measured alone, because the presence of other family member(s) may decrease the stress levels and thus their metabolic rates. This phenomenon known as a socio-physiological effect should be conspicuous when the metabolism of huddling individuals is measured within a species&apos; thermoneutral zone (TNZ), where no energetic costs for body warming or cooling exist. In our study, we measured the resting metabolic rates of a social species of African mole-rat, the Mashona mole-rat (Fukomys darlingi), in individuals, pairs and groups of three to eight individuals. Measurements were carried out at ambient temperature below the species&apos; TNZ (20 degrees C) to test the effect of social thermoregulation and at a temperature within the species&apos; TNZ (30 degrees C) to test the socio-physiological effect. In pairs, the Mashona mole-rat saved 25% of its individual energetic expenses at the temperature below the TNZ. With increasing group size, energetic savings rose up to four animals, but no savings were found in larger groups. At the temperature within the TNZ, mole-rats saved 10% of individual energetic expenses in pairs, but the difference was not significant. Also, no energetic savings were found in larger groups within the TNZ. Our results on thermoregulatory savings in the TNZ are in contrast with extremely high energetic savings found by other authors in different mole-rat species.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/GA17-19896S" target="_blank" >GA17-19896S: Problémy a řešení termoregulace podzemních savců</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Thermal Biology

ISSN

0306-4565

e-ISSN

—

Svazek periodika

78

Číslo periodika v rámci svazku

DEC 2018

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

367-373

Kód UT WoS článku

000454467700045

EID výsledku v databázi Scopus

2-s2.0-85056484021