Ecomorphological characteristics of Afroalpine rodent communities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F24%3A00597928" target="_blank" >RIV/68081766:_____/24:00597928 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/24:43908442

Výsledek na webu

<a href="https://bioone.org/journalArticle/Download?urlId=10.25225%2Fjvb.24027" target="_blank" >https://bioone.org/journalArticle/Download?urlId=10.25225%2Fjvb.24027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.25225/jvb.24027" target="_blank" >10.25225/jvb.24027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ecomorphological characteristics of Afroalpine rodent communities

Popis výsledku v původním jazyce

Rodents comprise around half of all mammalian species, showcasing their remarkable adaptability to thrive in almost all terrestrial habitats. Their evolutionary success is exemplified by a wide range of morphological features reflecting various feeding and locomotory adaptations. This study examines the functional variation in cranial and mandibular traits as well as locomotion indices in rodent communities within the high-altitude Afroalpine environment of the Ethiopian Highlands. The findings reveal two distinct patterns in cranial and mandibular traits. One pattern is associated with dietary differences, distinguishing the primarily herbivorous species Otomys helleri, Arvicanthis abyssinicus and Lophuromys melanonyx, which are characterised by relatively long molar rows, massive mandibles, and likely enhanced bite force, from the generally omnivorous genus Stenocephalemys and the more faunivorous Lophuromys flavopunctatus. The second pattern indicates that species in the Afroalpine ecosystem have adapted to life in distinct habitats across different elevational zones. Species from the highest elevational zones within the genera Stenocephalemys and Lophuromys exhibit convergent morphological adaptations for life in open habitats, characterised by their larger size, narrower interorbital constriction, and larger orbits. Regarding locomotion, our study emphasises the unique morphology of Otomys, which is characterised by equally long forelimbs and hindlimbs. This corresponds to its predominant fast quadrupedal running. In contrast, Stenocephalemys species are likely to rely more on saltatory locomotion. Among them, the forest-dwelling S. albipes likely demonstrates the most advanced form of this locomotory style. The study highlights significant functional diversification in rodent assemblages from the Ethiopian Highlands, primarily driven by foraging and locomotor ecologies. This morphological variation has likely contributed to shaping the rich rodent communities integral to the Eastern Afromontane Biodiversity Hotspot, globally recognized for its significance in mammal endemism.

Název v anglickém jazyce

Ecomorphological characteristics of Afroalpine rodent communities

Popis výsledku anglicky

Rodents comprise around half of all mammalian species, showcasing their remarkable adaptability to thrive in almost all terrestrial habitats. Their evolutionary success is exemplified by a wide range of morphological features reflecting various feeding and locomotory adaptations. This study examines the functional variation in cranial and mandibular traits as well as locomotion indices in rodent communities within the high-altitude Afroalpine environment of the Ethiopian Highlands. The findings reveal two distinct patterns in cranial and mandibular traits. One pattern is associated with dietary differences, distinguishing the primarily herbivorous species Otomys helleri, Arvicanthis abyssinicus and Lophuromys melanonyx, which are characterised by relatively long molar rows, massive mandibles, and likely enhanced bite force, from the generally omnivorous genus Stenocephalemys and the more faunivorous Lophuromys flavopunctatus. The second pattern indicates that species in the Afroalpine ecosystem have adapted to life in distinct habitats across different elevational zones. Species from the highest elevational zones within the genera Stenocephalemys and Lophuromys exhibit convergent morphological adaptations for life in open habitats, characterised by their larger size, narrower interorbital constriction, and larger orbits. Regarding locomotion, our study emphasises the unique morphology of Otomys, which is characterised by equally long forelimbs and hindlimbs. This corresponds to its predominant fast quadrupedal running. In contrast, Stenocephalemys species are likely to rely more on saltatory locomotion. Among them, the forest-dwelling S. albipes likely demonstrates the most advanced form of this locomotory style. The study highlights significant functional diversification in rodent assemblages from the Ethiopian Highlands, primarily driven by foraging and locomotor ecologies. This morphological variation has likely contributed to shaping the rich rodent communities integral to the Eastern Afromontane Biodiversity Hotspot, globally recognized for its significance in mammal endemism.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10619 - Biodiversity conservation

Projekt

<a href="/cs/project/GC20-07091J" target="_blank" >GC20-07091J: Drobní savci východoafrických hor: evoluce rozmanitosti a endemismu v jednom z celosvětově nejdůležitějších center biodiverzity</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

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

2694-7684

Svazek periodika

73

Číslo periodika v rámci svazku

24027

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

20

Strana od-do

24027

Kód UT WoS článku

001293535700001

EID výsledku v databázi Scopus

2-s2.0-85200584843