Praćenje stanja staništa i podzemne faune beskralješnjaka u speleološkim objektima Nacionalnog parka Krka

master's thesis

• Title (english): Monitoring of underground invertebrate fauna and habitats in speleological objects of the Krka National Park
• Author: Leo Hrs
• Mentor: Tvrtko Dražina (mentor)
• Committee member: Tvrtko Dražina (predsjednik povjerenstva)
• Committee member: Duje Lisičić (član povjerenstva)
• Committee member: Petar Žutinić (član povjerenstva)
• Committee member: Marija Ivković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2020-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Špiljska staništa predstavljaju jedinstven ekosustav koji karakteriziraju stabilni fizikalni
i kemijski čimbenici. Smatraju se ekstremnim staništem konstantne tame, niske
temperature, visoke vlažnosti i s malo nutrijenata što rezultira malim količinama
organskog ugljika, ključne komponente života. Mnoga istraživanja u posljednjih nekoliko
desetljeća potvrđuju znatan napredak u razumijevanju podzemne biologije, a posebno
podzemne ekologije. Međutim, još smo daleko od razumijevanja tako temeljnih pitanja
kao što su adaptivni mehanizmi, obrasci distribucije vrsta, trofičke interakcije i
funkcioniranje ekosustava. Podzemna fauna i staništa predstavljaju važnu sastavnicu
svjetske i europske prirodne baštine. jezgri očuvanja, upravljanja i obnove ekosustava
leži kontinuirano praćenje stanja (monitoring). Istraživanje u Nacionalnom parku Krka
provedeno je u razdoblju od ožujka 2015. godine do listopada 2016. godine, s terenskim
izlascima u svakoj sezoni (proljeće, ljeto, jesen, zima). U ovom radu su analizirane
promjene sastava i raznolikosti faune u prostoru i kroz sezone te utjecaj drugačijih
metoda uzorkovanja. Analizirane su sličnosti i razlike istih mikrostaništa u različitim
speleološkim objektima. Metoda cenzusa ploha pogodna je za veće objekte, dok se za
jednostavnije objekte može provoditi metoda cenzusa objekta. Brojčani podaci sastava i
brojnosti daju uvid u trenutačno stanje faune u istraživanim objektima, a kontinuirano
praćenje jedini je način bilježenja promjena u populacijama.

Abstract (english)

Cave habitats represent a unique ecosystem characterized by fairly stable physical and
chemical parameters. They are considered an extreme habitat of constant darkness, low
temperature, high humidity and low nutrients resulting in small amounts of organic
carbon, a key component of life. Much research in recent decades confirms significant
advances in the understanding of subterranean biology, and subterranean ecology in
particular. However, we are still far from understanding fundamental issues such as
adaptive mechanisms, species distribution patterns, trophic interactions, and ecosystem
functioning. Underground fauna and habitats are an important component of world and
European natural heritage. At the core of ecosystem conservation, management and
restoration lies continuous monitoring of the state of change. The research in the Krka
National Park was carried out in the period from March 2015 to October 2016, with field
work in each season (spring, summer, autumn, winter). This thesis analyzes the
temporal and spatial changes in the composition and diversity of fauna, as well as the
effect of different sampling methods used. The similarities and differences of the same
microhabitats in different speleological objects were analyzed. The plot census method
is suitable for larger caves, while for simpler caves the object census method can be
applied. Numerical data on composition and abundance provide insight into the current
state of fauna and continuous monitoring is the only way to record changes in
populations.

• Keywords: troglobiont; guano; bioraznolikost; cenzus objekta/ploha; trofija
• Keywords (english): troglobiont; guano; biodiversity; plot/object census; trophy
• Language: croatian
• URN:NBN: urn:nbn:hr:217:764570
• Study programme: Title: Ecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra ekologije i zaštite prirode (magistar/magistra ekologije i zaštite prirode)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2022-09-24
• Created on: 2020-10-07 09:24:08