Does livestock influence the diet of Iberian ibex Capra pyrenaica in the Peneda-Gerês National Park (Portugal)?
Moço, Gisela (Universidad de Jaén. Departamento de Biología Animal, Biología Vegetal y Ecología)
Serrano Ferron, Emmanuel (Universitat Autònoma de Barcelona. Servei d'Ecopatologia de Fauna Salvatge)
Guerreiro, Margarida (Universidade de Lisboa. Centro de Biologia Ambiental)
Filipa Ferreira, Ana (Universidade de Lisboa. Centro de Biologia Ambiental)
Petrucci-Fonseca, Francisco (Universidade de Lisboa. Centro de Biologia Ambiental)
Santana, Daniel (Universidade de Lisboa. Centro de Biologia Ambiental)
Maia, M. Joao (Instituto Superior de Agronomia de Lisboa. Centro de Ecologia Aplicada Professor Baeta-Neves)
Soriguer, Ramón C. (Estación Biológica de Doñana)
Pérez Jiménez, Jesús María (Universidad de Jaén. Departamento de Biología Animal, Biología Vegetal y Ecología)

Data:	2014
Resum:	We carried out a pilot study about the influence of the domestic goat Capra hircus on the feeding ecology of the Iberian ibex Capra pyrenaica in the Peneda-Gerês National Park (PGNP, Portugal). We mapped the grazing areas of domestic goat flocks and determined their stocking rates in two mountains of PGNP, Gerês and Amarela, and we investigated the diets of both ungulates using fecal microhistology in an area where they partially overlapped during spring and summer. Diet composition, ligneous diversity, and ligneous trophic niche were compared seasonally. Although differences in ligneous components were observed, results revealed a considerable diet overlap mainly due to graminoids consumption, especially during autumn and spring. This suggests that direct or indirect foraging competition between the goat species should not be discarded if they spatially concur. Results also emphasized distinct summer feeding strategies of C. pyrenaica in the area, and the influence of cattle (Bos taurus) and horses (Equus caballus) were hypothesized. We recommend removing feral goats from the mountain environment and monitoring grazing areas of domestic flocks. Estimates of ecological carrying capacity and future diet studies should include cattle, horses, and improvement of herb identification.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Cabres ; Veterinària ; Capra hircus ; Domestic goat ; Feeding ecology ; Feral goat ; Potential competition
Publicat a:	Mammalia, Vol. 78 Núm. 3 (2014)

DOI: 10.1515/mammalia-2013-0139

7 p, 1007.1 KB

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