Invazivna flora Zagrebačke županije - biogeografija i potencijalno širenje

doctoral thesis

• Title (english): Invasive flora of the Zagreb county – biogeography and potential spread
• Author: Diana Vlahović
• Mentor: Božena Mitić (mentor)
• Committee member: Renata Šoštarić (predsjednik povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2018, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology
• Universal decimal classification (UDC): 58 - Botany

Abstract

U devet istraženih gradova Zagrebačke županije zabilježeno je 39 invazivnih biljaka.
Najzastupljenije su svojte iz porodice Asteraceae (35,90%) i Poaceae (10,26%),
prevladavaju terofiti (48,72%), najviše ih potječe iz Amerike (71,79%), a najčešće
svojte u svim gradovima su Erigeron annuus, Conyza canadensis i Ambrosia
artemisiifolia. Bioindikatorske vrijednosti pokazuju da većina vrsta preferira svijetla i
topla staništa. Najčešći način rasprostranjivanja je zoohorija (20,51%), a najveći je udio
CR (41,03 %) i C (38,46%) životnih strategija. Invazivna flora zabilježena je na 24
različita tipa staništa, a fragmentiranost staništa prisutna je na 89,65% istraženih ploha.
Prostorna rasprostranjenost pokazuje povećanje broja invazivnih vrsta na većini ploha,
posebno u urbanim dijelovima i ruralnim prilazima gradu. Utvrđeni su neki antropogeni,
abiotički i biotički čimbenici koji mogu utjecati na rasprostranjenost invazivnih biljaka
u Zagrebačkoj županiji, ali se primijenjeni linearni regresijski model pokazao
nedovoljno adekvatan za predviđanje njihovog potencijalnog širenja na tom području.

Abstract (english)

During the research of invasive plants in nine cities of the Zagreb county, 39 invasive
taxa were recorded. The most represented families are Asteraceae (35.90%) and
Poaceae (10.26%), and invasive plants are mostly: dominated by therophytes (48.72%),
originated from Americas (71.79%), good indicators of lighter and warmer habitats, CR
(41.03%) and C (38.46%) life strategists, spread by zoohori (20.51%). The most
frequent were Erigeron annuus, Conyza canadensis and Ambrosia artemisiifolia. The
majority of invasive flora was recorded on 24 different habitats, with fragmentations on
89.65% of the explored plots. Spatial distribution shows an increase in the number of
invasive taxa on most plots, especially in urban areas and rural outskirts. Some
anthropogenic, abiotic and biotic factors that can affect the potential spread of invasive
plants in the Zagreb County have been established, but the applied linear regression
model has proved insufficient to predict their potential expansion in the area.

• Keywords: invazivne biljke; čimbenici prostorne rasprostranjenosti; regresijski model
• Keywords (english): invasive alien plants; spatial distribution factors; regression model
• Language: croatian
• URN:NBN: urn:nbn:hr:217:829266
• Study programme: Title: Biology; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje biologija (doktor/doktorica znanosti, područje prirodnih znanosti, polje biologija)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2019-09-29
• Created on: 2018-01-22 11:24:57