LÖVY, Matěj, Leonid A. LAVRENCHENKO, Danila S. KOSTIN, Alexey A. MARTYNOV, Radim ŠUMBERA, Josef BRYJA and Jan OKROUHLÍK. The effect of elevation on haematocrit in Ethiopian rodents. Journal of Vertebrate Biology. Brno: Institute of Vertebrate Biology, Czech Academy of Sciences, 2020, vol. 69, No 2, p. 1-11. ISSN 2694-7684. Available from: https://dx.doi.org/10.25225/jvb.20011.
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Basic information
Original name The effect of elevation on haematocrit in Ethiopian rodents
Authors LÖVY, Matěj (guarantor), Leonid A. LAVRENCHENKO, Danila S. KOSTIN, Alexey A. MARTYNOV, Radim ŠUMBERA, Josef BRYJA (203 Czech Republic, belonging to the institution) and Jan OKROUHLÍK.
Edition Journal of Vertebrate Biology, Brno, Institute of Vertebrate Biology, Czech Academy of Sciences, 2020, 2694-7684.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10613 Zoology
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/00216224:14310/20:00116770
Organization unit Faculty of Science
Doi http://dx.doi.org/10.25225/jvb.20011
UT WoS 000543817700001
Keywords in English Stenocephalemys; Rodentia; elevational gradient; Ethiopian highlands; blood parameters
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 30/10/2020 13:22.
Abstract
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.
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