The effect of elevation on haematocrit in Ethiopian rodents

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43900988" target="_blank" >RIV/60076658:12310/20:43900988 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081766:_____/20:00531023 RIV/00216224:14310/20:00116770

Výsledek na webu

<a href="https://bioone.org/journals/journal-of-vertebrate-biology/volume-69/issue-2/jvb.20011/The-effect-of-elevation-on-haematocrit-in-Ethiopian-rodents/10.25225/jvb.20011.full" target="_blank" >https://bioone.org/journals/journal-of-vertebrate-biology/volume-69/issue-2/jvb.20011/The-effect-of-elevation-on-haematocrit-in-Ethiopian-rodents/10.25225/jvb.20011.full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.25225/jvb.20011" target="_blank" >10.25225/jvb.20011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of elevation on haematocrit in Ethiopian rodents

Popis výsledku v původním jazyce

Key adaptations enabling mammals to cope with oxygen deficiency at high elevations relate to oxygen transfer into the blood. Among others, the efficiency of this mechanism depends on haematocrit (Hct, the volumetric fraction of red blood cells in blood). Although blood of high-elevation mammals is usually characterised by normal or slightly increased Hct, there are contradictory findings from studies along different elevational gradients. The aim of this study was to explore variability of Hct at both inter- and intraspecific levels in six rodent species from lower and higher elevations of Choke Mountain in Ethiopia. We found that Stenocephalemys sp. A from higher elevation had higher Hct than its congener Stenocephalemys albipes from lower elevation and a similar but weaker tendency was observed intraspecifically in Lophuromys simensis. Furthermore, Hct among four species occupying the high-elevation Afroalpine zone was comparable, and higher than in animals from lower elevations. Higher Hct in the three Afroalpine specialists probably contributes to local adaptations for life in high elevation environments under hypobaric hypoxia.

Název v anglickém jazyce

The effect of elevation on haematocrit in Ethiopian rodents

Popis výsledku anglicky

Key adaptations enabling mammals to cope with oxygen deficiency at high elevations relate to oxygen transfer into the blood. Among others, the efficiency of this mechanism depends on haematocrit (Hct, the volumetric fraction of red blood cells in blood). Although blood of high-elevation mammals is usually characterised by normal or slightly increased Hct, there are contradictory findings from studies along different elevational gradients. The aim of this study was to explore variability of Hct at both inter- and intraspecific levels in six rodent species from lower and higher elevations of Choke Mountain in Ethiopia. We found that Stenocephalemys sp. A from higher elevation had higher Hct than its congener Stenocephalemys albipes from lower elevation and a similar but weaker tendency was observed intraspecifically in Lophuromys simensis. Furthermore, Hct among four species occupying the high-elevation Afroalpine zone was comparable, and higher than in animals from lower elevations. Higher Hct in the three Afroalpine specialists probably contributes to local adaptations for life in high elevation environments under hypobaric hypoxia.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/GA18-17398S" target="_blank" >GA18-17398S: Evoluce na strmém gradientu nadmořské výšky: stanovení role genetických a ekologických faktorů v procesu vzniku druhů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Vertebrate Biology

ISSN

2694-7684

e-ISSN

—

Svazek periodika

69

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

000543817700001

EID výsledku v databázi Scopus

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