Improving Aquatic Biodiversity Estimates in Africa: Rotifers of Angola and Ghana

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F24%3A98350" target="_blank" >RIV/60460709:41210/24:98350 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/d16050269" target="_blank" >https://doi.org/10.3390/d16050269</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/d16050269" target="_blank" >10.3390/d16050269</a>

Result language

angličtina

Original language name

Improving Aquatic Biodiversity Estimates in Africa: Rotifers of Angola and Ghana

Original language description

Afrotropical inland waters are highly diverse ecosystems; however, they remain poorly studied, especially for rotifers. Here, we contributed to the knowledge of the rotifer species richness in the largely understudied African countries of Angola and Ghana. We assessed the roles of habitat type and a suite of abiotic environmental factors in determining rotifer species richness of Ghana. A total of 37 sites (Ghana 32, Angola 5) in 19 water bodies from a variety of aquatic habitat types were sampled. In Ghana, we identified 118 taxa (105 species or subspecies level, 13 identified to genus). We identified 15 taxa (13 species) in the Angola samples. For Ghana, 100 of 118 (similar to 85%) taxa were new records for the country, of which 13 species (similar to 11%) were also new records for Africa. Nearly all the species (similar to 93%) were new records for Angola. Species richness was positively correlated with conductivity and reservoir habitat type and negatively with pH. Redundancy analysis (RDA), conducted at the species level for the Ghana dataset, indicated suites of species associated with latitude, longitude, temperature, TDS, or pH. We also evaluated the effect of climate on species distribution in 27 African countries by conducting a review of all reports from Africa to determine factors associated with species richness. A Spearman's correlation confirmed a significant positive correlation between the number of rotifer species and the number of climatic regions (R = 0.53, p < 0.001) for certain countries, based on species distributions in relation to Koppen-Geiger climate regions. This fact validates the environmental heterogeneity hypothesis for African rotifers. Lastly, we predicted that rotifer species richness in Ghana, as a country with a tropical climate, could approach similar to 190 taxa, while in climatically heterogeneous Angola we predict similar to 200 taxa. This study contributes to our knowledge of rotifer biogeography and species richness patterns in Africa.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2024

Confidentiality

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

Name of the periodical

Diversity-Basel

ISSN

1424-2818

e-ISSN

1424-2818

Volume of the periodical

16

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

24

Pages from-to

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UT code for WoS article

001233491400001

EID of the result in the Scopus database

2-s2.0-85194354688