Naslov
New chorological and ecological data on allochtonous Thladiantha dubia (Cucurbitaceae) in Croatia

Autori
Rimac, Anja ; Šegota, Vedran ; Prlić, Dragan ; Doboš, Marko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
BOOK OF ABSTRACTS 4th Croatian symposium on invasive species with international participation / Jelaska, Sven D. - Zagreb : Hrvatsko ekološko društvo, 2021, 72-72

Skup
4. hrvatski simpozij o invazivnim vrstama = 4th Croatian Symposium on Invasive Species

Mjesto i datum
Zagreb, Hrvatska, 29.11.2021. - 30.11.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
neophyt ; alien species ; naturalized species ; parthenocarpy

Sažetak
Thladiantha dubia Bunge (Cucurbitaceae) is a dioecious, perennial climbing vine native to the northern parts of China. So far, it has been recorded as an alien in many European countries, western states of the USA and Canada, and in several Asian countries outside its native range. This species is usually reported growing in shrubs, along railways, riverbanks, in maize fields, on the borders of vineyards and landfills. In Croatia, it was recorded for the first time in 1985 in the immediate vicinity of Botanical Garden of the Department of Biology (Zagreb County), however, the first published Croatian record, is relatively recent (marshland area Savica in Zagreb). Both previously known localities in Zagreb were confirmed and four new localities, all in continental Croatia were recorded between 2015 and 2020 – a single locality at Stara Savica (Zagreb) and in the vicinity of Vrbova (Brod- Posavina County) and two localities near Slatina (Virovitica-Podravina County). Although the species was not considered a garden plant earlier, two of our new records are most likely of garden origin. Introduction pathways on other localities might be through railroads, watercourses or embankment maintenance. The majority of the Croatian populations are female, which is quite rare in Europe, wherefrom mostly male plants were reported so far. Female populations of Th. dubia were recorded while in bloom or bearing seedless fruits in the summer months. Since no mixed populations were found and specific pollinators of this entomophilous species are absent from Europe, the fruits are most likely parthenocarpic (e.g. developed without fertilisation, resembling normally produced fruits but are seedless). According to the Croatian classification of alien flora, Th. dubia can be classified as a naturalized, non-invasive alien weed in Croatia.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA