Naslov
Impact of spatial precision of chorological data on supposed habitat and environmental conditions preferences of six invasive plant species in Croatia
(Impact of spatial precision of chorological data on supposed habitat and environmental conditions preferences of six invasive plant species in Croatia)

Autori
Rajčić, Lucija ; Jelaska, Sven D.

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

Izvornik
Zbornik sažetaka 4. Hrvatskog simpozija o invazivnim vrstama / Jelaska, Sven D. - Zagreb : Hrvatsko ekološko društvo, 2021, 28-28

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
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
spatial accuracy ; uncertainty ; invasive plants ; Croatia

Sažetak
Previous studies show that low spatial precision of chorological data negatively affects the accuracy of species distribution models which are used to determine the distribution of invasive species and develop management strategies. In this study spatial records of various spatial precisions (from GPS coordinates to 5 km2 accuracy) were acquired for six invasive plant species in Croatia – Ailanthus altissima, Ambrosia artemisiifolia, Echinocystis lobata, Erigeron annuus, Robinia pseudoacacia, and Veronica persica. Using GIS, data on habitats and environmental conditions (climatic and land surface parameters) were joined to chorological records. Environmental conditions preferences were analyzed using descriptive statistics and ANOVA followed by Tukey post-hoc test. Habitat preferences were tested using Friedman ANOVA followed by the Wilcoxon Matched Pairs test. ANOVA detected significant differences in preferences for environmental conditions, while the Tukey post hoc test showed that most differences were present among climatic variables. More differences were present in annual than in quarterly variables. Friedman ANOVA also detected significant differences in habitat preferences in A. artemisiifolia, E. annuus, R. pseudoacacia, and V. persica. Wilcoxon Matched Pairs test showed that differences were predominately present between the dataset of lowest spatial precision and the dataset of highest spatial precision but there were also some exceptions to this trend. According to our results, lower spatial precision affects the obtained ecological profile and habitat preferences although it differs across species and variables and depends on the sample size. More consistent results were obtained for species with a more specialized distribution (A. altissima and E. lobata) than for ones with a broad distribution. Lastly, we recommend testing the consistency of chorological data of different spatial accuracy before choosing the entry data for environmental modeling.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA