The yellow-bellied toad (Bombina variegata, Linnaeus 1758) is one of the most important amphibian species in our country. Over time, its survival has been seriously threatened by a series of anthropogenic impacts that have led to habitat loss and fragmentation. Among these are alpine pasture ponds, a characteristic element of alpine landscapes and closely linked to traditional alpine grazing practices for livestock watering. In addition to this function, these wetlands sometimes represent the only suitable habitats for many aquatic plant and animal species included in numerous Red Lists and subject to protection, including the yellow-bellied toad. The aim of this thesis was to carry out a monitoring study of the populations of this species located in the Campofontana area, in the province of Verona. The activity focused on alpine pasture ponds, some of which are located within the Special Protection Area (SPA) and the Special Area of Conservation (SAC) “Monti Lessini – Pasubio – Piccole Dolomiti Vicentine”. In addition to collecting biometric data from the captured individuals, several biotic and abiotic parameters of the alpine pasture ponds were assessed in order to develop a “Functionality Index” useful for evaluating their suitability from both a naturalistic and livestock-management perspective. Based on the results obtained, it was possible to formulate hypotheses for the restoration or improvement of the condition of the ponds in order to enhance their functions.
L’ululone dal ventre giallo (Bombina variegata, Linnaeus 1758) rappresenta una delle specie di anfibi più importanti nel nostro Paese. Col passare del tempo, la sua sopravvivenza è stata messa fortemente a rischio da una serie di impatti antropici che ne hanno causato la perdita e la frammentazione dell’habitat. Tra questi vi sono le pozze d’alpeggio, un elemento caratteristico dei paesaggi alpini e fortemente legato alla pratica dell’alpeggio per l’abbeveraggio del bestiame. Oltre a tale funzione, queste zone umide rappresentano talvolta gli unici habitat compatibili con molte specie acquatiche vegetali e animali inserite in numerose liste rosse e sottoposti a tutela, tra i quali l’ululone dal ventre giallo. Con il presente lavoro di tesi, si è voluto realizzare un monitoraggio delle popolazioni di questa specie, localizzate nell’area di Campofontana, in provincia di Verona. L’attività si è concentrata sulle pozze d’alpeggio, alcune delle quali localizzate all’interno della Zona di Protezione Speciale (ZPS) e della Zona Speciale di Conservazione (ZSC) “Monti Lessini – Pasubio – Piccole Dolomiti Vicentine”. Oltre alla raccolta dei dati biometrici degli individui catturati, si è proceduto a valutare alcuni parametri biotici e abiotici delle pozze d’alpeggio per strutturare un “Indice di Funzionalità” utile a valutarne l’idoneità dal punto di vista naturalistico e zootecnico. Sulla base dei risultati ottenuti, è stato possibile formulare delle ipotesi di ripristino o di miglioramento dello stato delle pozze al fine di migliorare le loro funzioni.
Relazioni tra habitat delle pozze d’alpeggio e Bombina variegata nell’Alta Lessinia Orientale
VENTURINI, LORENZO
2025/2026
Abstract
The yellow-bellied toad (Bombina variegata, Linnaeus 1758) is one of the most important amphibian species in our country. Over time, its survival has been seriously threatened by a series of anthropogenic impacts that have led to habitat loss and fragmentation. Among these are alpine pasture ponds, a characteristic element of alpine landscapes and closely linked to traditional alpine grazing practices for livestock watering. In addition to this function, these wetlands sometimes represent the only suitable habitats for many aquatic plant and animal species included in numerous Red Lists and subject to protection, including the yellow-bellied toad. The aim of this thesis was to carry out a monitoring study of the populations of this species located in the Campofontana area, in the province of Verona. The activity focused on alpine pasture ponds, some of which are located within the Special Protection Area (SPA) and the Special Area of Conservation (SAC) “Monti Lessini – Pasubio – Piccole Dolomiti Vicentine”. In addition to collecting biometric data from the captured individuals, several biotic and abiotic parameters of the alpine pasture ponds were assessed in order to develop a “Functionality Index” useful for evaluating their suitability from both a naturalistic and livestock-management perspective. Based on the results obtained, it was possible to formulate hypotheses for the restoration or improvement of the condition of the ponds in order to enhance their functions.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/105242