Vrstna, funkcionalna in filogenetska pestrost plena treh vrst sov

magistrsko delo

Nuša Vinko (Avtor), Franc Janžekovič (Mentor)

Povzetek

Prehrana sov je pogost predmet raziskav, saj ob podatkih o vrstah, ki jih plenijo, pridobimo tudi podatke o plenilskem vedenju in specializiranosti plenilca ter podatke o lokalni favni malih sesalcev. Z metodo analize izbljuvkov, pridobljenih podatkov s pomočjo metaanalize in statistične analize vzorcev smo v magistrskem delu raziskali vrstno, funkcionalno in filogenetsko pestrost plena in posledično prehrano pegaste sove, Tyto alba, lesne sove, Strix aluco, in male uharice, Asio otus, na območju severovzhodne Slovenije. Rezultati cenilk vrstne pestrosti razkrivajo, da pegasta sova izkazuje najvišjo vrstno pestrost, tesno ji sledi lesna sova, mala uharica pa izkazuje najnižjo raznolikost vrst. Pegasta sova je prav tako funkcionalno najbolj pestra, pri čemer ima lesna sova nekoliko nižje, a še vedno znatno visoke vrednosti. Filogenetska pestrost je najvišja pri lesni sovi, sledi pegasta sova in nato mala uharica. Te ugotovitve kažejo na različne ekološke strategije in različnost prehrane obravnavanih sov. Pegasta sova deluje kot generalist in izkorišča raznolik nabor plena. Lesna sova ima uravnotežen pristop in pleni vrste raznolikih evolucijskih linij. Mala uharica izkazuje najbolj specializirane prehranjevalne navade z najnižjimi vrednostmi na vseh obravnavnih nivojih. Ugotovitve zagotavljajo vpogled v diferenciacijo in delitev ekoloških niš ter plena med preučevanimi vrstami sov, s poudarkom na pomembnosti upoštevanja več vidikov pestrosti za celovite ekološke ocene.

Ključne besede

magistrska dela;prehrana sove;vrstna pestrost;funkcionalna pestrost;filogenetska pestrost;analiza izbljuvkov;metaanaliza;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2024
Tipologija:	2.09 - Magistrsko delo
Organizacija:	UM FNM - Fakulteta za naravoslovje in matematiko
Založnik:	[N. Vinko]
UDK:	598.2:591.53(043.2)
COBISS:	191946755
Št. ogledov:	43
Št. prenosov:	2
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Species, functional and phylogenetic diversity of prey of three species of owls
Sekundarni povzetek:	The diet of owls is a common subject of research, as alongside data on the species they prey upon, we also gain insights into the predators' predatory behavior and specialization, as well as information on the local fauna of small mammals. Using the method of pellet analysis, data obtained through meta-analysis, and statistical analysis of samples, I investigated the species, functional, and phylogenetic diversity of prey, and consequently, the diet of the Barn Owl (Tyto alba), Tawny Owl (Strix aluco), and Long-eared Owl (Asio otus) in the northeastern region of Slovenia. The results of species diversity estimators reveal that the Barn Owl exhibits the highest species diversity, closely followed by the Tawny Owl, while the Long-eared Owl displays the lowest species diversity. Additionally, the Barn Owl also has the highest functional diversity, with the Tawny Owl having slightly lower but still significantly high values. Phylogenetic diversity is highest in the Tawny Owl, followed by the Barn Owl, and then the Long-eared Owl. These findings indicate different ecological strategies and dietary diversity among the studied owls. The Barn Owl operates as a generalist, exploiting a diverse range of prey, while the Tawny Owl adopts a balanced approach, preying on species from various evolutionary lineages. The Long-eared Owl exhibits the most specialized feeding habits with the lowest values across all considered levels. These findings provide insights into the differentiation and partitioning of ecological niches and prey among the studied owl species, emphasizing the importance of considering multiple aspects of diversity for comprehensive ecological assessments.
Sekundarne ključne besede:	master theses;owl's diet;species diversity;functional diversity;phylogenetic diversity;pellet analysis;meta-analysis;Sove (red);Živalska prehrana (fiziologija);Univerzitetna in visokošolska dela;
Vrsta dela (COBISS):	Magistrsko delo/naloga
Komentar na gradivo:	Univ. v Mariboru, Fak. za naravoslovje in matematiko, Oddelek za biologijo
Strani:	X, 69 f.
ID:	23131213