Naslov
First five years of digitisation of ZA and ZAHO collections (Croatia) – What did we learn?

Autori
Šegota, Vedran ; Vilović, Tihana ; Rešetnik, Ivana

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

Izvornik
13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions. Abstracts. / Ranđelović, Vladimir ; Stojanović-Radić, Zorica ; Nikolić, Danijela - Beograd : Niš : Institure for Nature Conservation of Serbia, Department of Biology and Ecology, Faculty of Science and Mathematics, University of Niš, 2019, 67-67

Skup
13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions

Mjesto i datum
NP Stara Planina, Srbija, 20.06.2019. - 23.06.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
herbarium, Zagreb, digitisation, bias

Sažetak
With over 200.000 sheets, ZA is the oldest and the largest herbarium collection in Croatia, while the ZAHO stores as many as 78.000 sheets. Digitisation was initiated in 2015 resulting in 11.5 % of digitised sheets so far. Based on 3.721 sheets analysed, we determined specific temporal biases with different peak collections, e.g. orchids from 1870’s to 1910’s, aquatic plants in 1910’s, 1960’s and 2010’s, fagetal species from 1900 to 1950, and invasive flora from 1960 to 1970 and after 2010. Moreover, the average age of those collections is 90 years. Disproportionally large percentage of specimens collected by very few individuals indicates the presence of collector biases too. The ZA keeps a dozen aquatic taxa as the only evidence of their presence in Croatia. As herbaria usually follow invasions from the first recorded colonizer onwards, we searched whether the collections hide data on the arrival of aliens in Croatia. The first record of 17 taxa occurred much earlier in herbaria than in literature, with gaps that sometimes counted more than 100 years. Based on the study of several common and easily recognizable fagetal taxa, we found that they are rarely collected and their representation in the collections is inversely proportional to their number and distribution in nature.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA