Ítem


Competencia interespecífica entre el gato montés (Felis silvestris) y otros pequeños carnívoros

Interspecific competition can be a key factor for the distribution and abundance of many species. The small carnivores are a guild with great potential for this type of competition, resulting in a fragile coexistence, with the need to reduce their overlap in temporal and spatial axes. Due to low abundance and the difficulty in situ observation, the distribution and conservation of the wildcat (Felis silvestris) in Catalonia is poorly know, as well as the potential factors that may affect it, such as, for example, competitive biological interactions with other species of carnivorous. To determine how important these interactions are for the distribution and conservation of Felis silvestris, by means of camera traps, we assessed the spatial and temporal distribution, as well as the frequency of small carnivore guild present in the Osona región. In this study area, the most representative species are the red fox (Vulpes vulpes), the badger (Meles meles), the common genet (Genetta genetta), the wildcat (Felis silvestris), the beech marten (Martes foina), the pine marten (Martes martes), as well as the domestic cat (Felis catus), which can also be seen among the other wild carnivores. We found that these species are distributed irregularly in a relatively small territory, with remarkable diferences in the frequency between zones. Regions with more heterogeneous landscapes, combining forests and open areas, showed a higher frequency of most carnivores, including Felis silvestris, dethroning the supremacy of Vulpes vulpes in the other more forested areas. These results, together with the patterns of daily activity, have shown that all species coexist and that the wildcat prefer mosaic areas, besides not affecting too much that there is much or little presence of the other species of carnivores. However, it is important to highlight thet we found some evidence for the hypothesis that the presence of Felis catus displaces the populations of Felis silvestris. A possible interspecific competition for the most vital resources can be a key factor for the presence-absence of the wildcat, since the zones with a high frequency of the domestic cat lacked the presence of the wildcat

Director: Bas Lay, Josep M. (Josep Maria)
Altres contribucions: Universitat de Girona. Facultat de Ciències
Autor: Serrat Crehuet, Marià
Data: juny 2018
Resum: Interspecific competition can be a key factor for the distribution and abundance of many species. The small carnivores are a guild with great potential for this type of competition, resulting in a fragile coexistence, with the need to reduce their overlap in temporal and spatial axes. Due to low abundance and the difficulty in situ observation, the distribution and conservation of the wildcat (Felis silvestris) in Catalonia is poorly know, as well as the potential factors that may affect it, such as, for example, competitive biological interactions with other species of carnivorous. To determine how important these interactions are for the distribution and conservation of Felis silvestris, by means of camera traps, we assessed the spatial and temporal distribution, as well as the frequency of small carnivore guild present in the Osona región. In this study area, the most representative species are the red fox (Vulpes vulpes), the badger (Meles meles), the common genet (Genetta genetta), the wildcat (Felis silvestris), the beech marten (Martes foina), the pine marten (Martes martes), as well as the domestic cat (Felis catus), which can also be seen among the other wild carnivores. We found that these species are distributed irregularly in a relatively small territory, with remarkable diferences in the frequency between zones. Regions with more heterogeneous landscapes, combining forests and open areas, showed a higher frequency of most carnivores, including Felis silvestris, dethroning the supremacy of Vulpes vulpes in the other more forested areas. These results, together with the patterns of daily activity, have shown that all species coexist and that the wildcat prefer mosaic areas, besides not affecting too much that there is much or little presence of the other species of carnivores. However, it is important to highlight thet we found some evidence for the hypothesis that the presence of Felis catus displaces the populations of Felis silvestris. A possible interspecific competition for the most vital resources can be a key factor for the presence-absence of the wildcat, since the zones with a high frequency of the domestic cat lacked the presence of the wildcat
Format: application/pdf
Accés al document: http://hdl.handle.net/10256/16468
Llenguatge: spa
Col·lecció: Ciències Ambientals (TFG)
Drets: Attribution-NonCommercial-NoDerivatives 4.0 International
URI Drets: http://creativecommons.org/licenses/by-nc-nd/4.0/
Matèria: Felis silvestris
Fèlids -- Catalunya -- Osona
Gat salvatge -- Catalunya -- Osona
Felidae -- Catalonia -- Osona
Wildcat -- Catalonia -- Osona
Títol: Competencia interespecífica entre el gato montés (Felis silvestris) y otros pequeños carnívoros
Tipus: info:eu-repo/semantics/bachelorThesis
Repositori: DUGiDocs

Matèries

Autors