Impacts of invasive alien species on riparian plant communities in South African savanna

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F23%3A00583844" target="_blank" >RIV/67985939:_____/23:00583844 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/23:10478432

Result on the web

<a href="https://doi.org/10.1017/S0266467423000299" target="_blank" >https://doi.org/10.1017/S0266467423000299</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S0266467423000299" target="_blank" >10.1017/S0266467423000299</a>

Result language

angličtina

Original language name

Impacts of invasive alien species on riparian plant communities in South African savanna

Original language description

Biological invasions are a threat to protected areas globally, however, the relative lack of studies quantifying the ecological impacts impairs informed decision-making. We selected three annual alien plants, widespread in the riparian habitats of the Kruger National Park, South Africa: Datura innoxia, Parthenium hysterophorus, and Xanthium strumarium, to examine their potential impacts on riparian plant communities. We identified 12–13 populations for each and placed a pair of invaded and uninvaded plots in each population. Species richness, Shannon diversity, and Pielou evenness were compared between the invaded and ininvaded plots using LMM models, and species composition was compared using ordination. The invaded vegetation showed lower species richness compared to the uninvaded, with the strongest effect observed for P. hysterophorus. The invaded plots also showed lower Shannon diversity and Pielou evenness due to the presence of alien dominants. For all three invaders, the invasion resulted in changes in the composition of native vegetation. Some native plants were more frequent and abundant in the invaded vegetation, possibly due to the habitats created in sandy river beds. The native species richness decreased with increasing invader cover, but the species richness of aliens accompanying the invasive dominants was not negatively affected by their cover. Our results confirmed the negative impact of invasive aliens on native plant diversity, with the most pronounced effect by Parthenium hysterophorus invasions.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/GA22-23532S" target="_blank" >GA22-23532S: Rivers as drivers of plant invasions in an African savanna: integrating invasiveness and impact across spatial and temporal scales</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Journal of Tropical Ecology

ISSN

0266-4674

e-ISSN

1469-7831

Volume of the periodical

39

Issue of the periodical within the volume

November

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

e39

UT code for WoS article

001100773700001

EID of the result in the Scopus database

2-s2.0-85178213979