Acevedo P, Escudero MA, Muñóz R, Gortázar C (2006) Factors affecting wild boar abundance across an environmental gradient in Spain. Acta Theriol 51(3):327–336
Google Scholar
Albon SD, Brewer MJ, O’Brien S, Nolan AJ, Cope D (2007) Quantifying the grazing impacts associated with different herbivores on rangelands. J Appl Ecol 44:1176–1187
Google Scholar
Aldezabal A (2001) El sistema de pastoreo del Parque Nacional de Ordesa y Monte Perdido (Pirineo Central, Aragón). Publicaciones del Consejo de Protección de la Naturaleza de Aragón, Zaragoza
Google Scholar
Aldezabal A, Bas J, Fillat F, García González R, Garín I, Gómez-García D (1992) Utilización ganadera de los pastos supraforestales en el Parque Nacional de Ordesa y Monte Perdido. CSIC-ICONA, Jaca
Google Scholar
Aldezabal A, Garin I, García González R (1993) Fecal nitrogen content of summering ungulates in supraforestal pastures of Ordesa and Monte Perdido National Park. Pastos 23(1):101–114
Google Scholar
Alldredge JR, Griswold J (2006) Design and analysis of resource selection studies for categorical resource variables. J Wildl Manage 70(2):337–345
Google Scholar
Baubet E, Touzeau C, Brandt S (1997) Les lombriciens dans le régime alimentaire du sanglier (Sus scrofa L.) en montagne. Mammalia 61:371–383
Google Scholar
Baubet E, Ropert-Coudert Y, Brandt S (2003) Seasonal and annual variations in earthworm consumption by wild boar (Sus scrofa scrofa L.). Wildl Res 30:179–186
Google Scholar
Bezkorowajnyj PG, Gordon AM, Mcbride RA (1993) The effect of cattle foot traffic on soil compaction in a silvo-pastoral system. Agrofor Syst 21:1–10
Google Scholar
Bowman DMJS, McDonough L (1991) Feral pig (Sus scrofa) rooting in a monsoon forest-wetland transition, northern Australia. Wildl Res 18:761–765
Google Scholar
Bueno CG, Alados CL, Gómez-García D, Barrio IC, García González R (2009) Understanding the main factors in the extent and distribution of wild boar rooting on alpine grasslands. J Zool 279:195–202
Google Scholar
Calenge C, Maillard D, Fournier P, Fouque C (2004) Efficiency of spreading maize in the garrigues to reduce wild boar (Sus scrofa) damage to Mediterranean vineyard. Eur J Wildl Res 50(3):112–120
Google Scholar
Congalton RG, Green K (1999) Assessing the accuracy of remotely sensed data: Principles and practices. Lewis Publisher, Boca Raton
Google Scholar
Council of the European Communities (1992) Council Directive 92/43/EEC on the conservation of natural habitats and of wild fauna and flora. Official Journal L 206:7–50
Google Scholar
Dennis P (2008) The effects of livestock grazing on foliar arthropods associated with bird diet in upland grasslands of Scotland. J Appl Ecol 45(1):279
Google Scholar
Dullinger S (2003) A resampling approach for evaluating effects of pasture abandonment on subalpine plant species diversity. J Veg Sci 14(2):243
Google Scholar
Evans DM, Redpath SM, Elston DA, Evans SA, Mitchell RJ, Dennis P (2006) To graze or not to graze? Sheep, voles, forestry and nature conservation in the British uplands. J Appl Ecol 43:499–505
Google Scholar
Fillat F, García-González R, Gómez D, Reiné R (2008) Pastos del Pirineo, p. 319. Madrid: Departamento de publicaciones - CSIC
Finn JA, Giller PS (2002) Experimental investigations of colonisation by north temperate dung beetles of different types of domestic herbivore dung. Appl Soil Ecol 20:1–13
Google Scholar
Gallo Orsi U, Sicuro B, Durio P, Canalis L, Mazzoni G, Serzotti E, Chiariglione D (1995) Where and when: the ecological parameters affecting wild boars choice while rooting in grassland in an alpine valley. Ibex J Mountain Ecology 3:160–164
Google Scholar
García González R, Hidalgo R, Montserrat P (1990) Pattern of livestock use in time and space in the summer ranges of the western Pyrenees: a case of study in the Aragon valley. Mt Res Dev 10(3):241–255
Google Scholar
García-González R, Alados CL, Bueno G, Fillat F, Gartzia M, Gómez D, Komac B, Marinas A, Saint-Jean N (2007) Valoración ecológica y productiva de los pastos supraforestales en el Parque Nacional de Ordesa y Monte Perdido. In: Ramirez L, Asensio B (eds) Proyectos de investigación en Parques Nacionales: 2003–2006. OAPN-MMA, Madrid, pp 105–128
Google Scholar
Geisser H, Reyer HU (2004) Efficacy of hunting, feeding and fencing to reduce crop damage by wild boars. J Wildl Manage 68(4):939–946
Google Scholar
Gortázar C, Herrero J, Villafuerte R, Marco J (2000) Historical examination of the status of large mammals in Aragon, Spain. Mammalia 64:411–422
Google Scholar
Hastie TJ, Tibshirani RJ (1990) Generalized additive models. Chapman & Hall, London
Google Scholar
Hector A, Schmid B, Beierkuhnlein C, Caldeira MC, Diemer M, Dimitrakopoulus PG, Finn JA, Freitas H, Giller PS, Good J, Harris R, Högberg P, Huss-Danell K, Joshi J, Jumpponen A, Körner C, Leadley PW, Loreau M, Minns A, Mulder CPH, O'Donovan G, Otway SJ, Pereira JS, Prinz A, Read DJ, Scherer-Lorenzen M, Schulze E-D, Siamantziouras A-SD, Spehn EM, Terry AC, Troumbis AY, Woodward FI, Yachi S, Lawton JH (1999) Plant diversity and productivity experiments in European grasslands. Science 286:1123–1127
Google Scholar
Herrero J, Irizar I, Laskurain NA, García-Serrano A, García González R (2005) Fruits and roots: wild boar foods during the cold season in the southwestern Pyrenees. Ital J Zool 72:49–52
Google Scholar
Herrero J, García-Serrano A, Couto S, Ortuño VM, García González R (2006) Diet of wild boar Sus scrofa L. and crop damage in an intensive agroecosystem. Eur J Wildl Res 52:245–250
Google Scholar
Herrero J, García-Serrano A, García González R (2008) Reproductive and demographic parameters in two Iberian wild boar Sus scrofa populations. Acta Theriol 53(4):355–364
Google Scholar
Hone J (2002) Feral pigs in Namadgi National Park, Australia: dynamics, impacts, and management. Biol Conserv 105:231–242
Google Scholar
Kuiters AT, Bruinderink GWTA, Lammerstsma DR (2005) Facilitate and competitive interactions between sympatric cattle, and wild boar in Dutch woodland pastures. Acta Theriol 50(2):241–252
Google Scholar
Lasanta-Martínez T, Vicente-Serrano SM, Cuadrat-Prats JM (2005) Mountain Mediterranean landscape evolution caused by the abandonment of traditional primary activities: a study of the Spanish Central Pyrenees. Applied Geography 25:47–65
Google Scholar
Luick R (1998) Ecological and socio-economic implications of livestock-keeping systems on extensive grasslands in south-western Germany. J Appl Ecol 35(6):979
Google Scholar
Manly BFJ, McDonald LL, Thomas DL, McDonald TL, Erikson WP (1993) Resource selection by animals: statistical design and analysis for field studies, 2nd edn. Kluwer Academic Publishers, New York
Google Scholar
Massei G, Genov P (2004) The environmental impact of wild boar. Galemys 16:135–145
Google Scholar
Meriggi A, Sacchi O (1992) Factors affecting damage by wild boars to cereal fields in Northern Italy. In: Spitz F, Janeau G, Gonzalez G, Aulagnier S (eds) Ongulés/Ungulates, vol 91. S.F.E.P.M.I.R.G.M., Paris Toulouse, pp 439–441
Google Scholar
Mikola J, Setälä H, Virkajärvi P, Saarvijärvi K, Ilmarinem K, Voigt W, Vestberg M (2009) Defoliation and patchy nutrient return drive grazing effects on plant and soil properties in a dairy cow pasture. Ecol Monogr 79(2):221–244
Google Scholar
Nogués-Bravo D (2006) Assessing the effect of environmental and anthropogenic factors on land-cover diversity in a Mediterranean mountain environment. Area 38(4):432–444
Google Scholar
Olff H, Ritchie ME (1998) Effects of herbivores on grasslands plant diversity. Trends Ecol Evol 13:261–265
Google Scholar
Pasche F, Armand M, Gouaux P, Lamaze T, Pornon A (2004) Are meadows with high ecological and patrimonial value endangered by heathland invasion in the French central Pyrenees? Biol Conserv 118:101–108
Google Scholar
R Development Core Team (2008) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna
Google Scholar
Schley L, Roper TJ (2003) Diet of wild boar Sus scrofa in Western Europe, with particular reference to consumption of agricultural crops. Mammal Rev 33(1):43–56
Google Scholar
Schley L, Dufrêne M, Krier A, Frantz AC (2008) Patterns of crop damage by wild boar (Sus scrofa) in Luxemburg over a 10-year period. Eur J Wildl Res 54:589–599
Google Scholar
Sebastià M-T, de Bello F, Puig L, Taull M (2008) Grazing as a factor structuring grasslands in the Pyrenees. Appl Veg Sci 11:215–222
Google Scholar
Tisdell CA (1982) Wild pigs: environmental pest or economical resource? Pergamon Press, Oxford
Google Scholar
Vicente-Serrano SM (2004) Analysis of spatial and temporal evolution of vegetation cover in the Spanish Central Pyrenees: role of human management. Environ Manage 34(6):802
Google Scholar
Welander J (2000a) Spatial and temporal dynamics of a disturbance regime: wild boar (Sus scrofa) rooting and its effects on plant species diversity. Doctoral dissertation, Swedish University of Agricultural Sciences
Welander J (2000b) Spatial and temporal dynamics of wild boar (Sus scrofa) rooting in a mosaic landscape. J Zool 252:263–271
Google Scholar
Wilson CJ (2004) Rooting damage to farmland in Dorset, southern England, caused by feral wild boar Sus scrofa. Mammal Rev 34:331–335
Google Scholar
Zuur AF, Ieno EN, Walker NJ, Saveliev AA, Smith GM (2009) Mixed effects models and extensions in ecology with R. Springer, New York
Google Scholar