Yew (Taxus baccata L.) population dynamics in the Iberian Mediterranean Mountains: natural regeneration and expansion in East Central System (Spain)
Abstract
Aim of study: To evaluate demographical dynamics of yew populations in the Iberian Mediterranean mountains in order to assess population trends and a hypothetical natural regeneration of the species.
Area of study: Ayllón Mountain Range, Eastern end of Central Mountain Range, Spain.
Material and methods: Afield survey was conducted on three yew groves, taking data of altitude, orientation, companion woody species, UTM coordinates, height, perimeter (at breast height, 120cm) and sex. Individuals were classified in four age groups, considering height and trunk perimeter: AgeGroup1, Seedling; AgeGroup2, Juvenile; AgeGroup3, Adult and AgeGroup4, Old. Finally Recruitment rate was calculated for each population.
Main results: Surveyed yew populations include more than 1600 trees, showing elevated Recruitment rates, which indicates that there are more seedling and juvenile individuals (Group1 and Group2) than adult and old ones (Group3 and Group4).
Research highlights: Surveyed yew populations show vigorous regeneration. These results lead us to reconsider the relictic character assigned to the species in the Iberian Mediterranean mountains.
Key words: Ayllón; microclimatic; regeneration rate; relictic; survey.Downloads
References
Arroyo J, Carrión J, Hampe A, Jordano P, 2004. La distribución de especies a diferentes escalas espacio-temporales. In: Ecología del bosque mediterráneo en un mundo cambiante; Valladares F. (ed).pp: 27-67. Ministerio de Medio Ambiente, Madrid (Spain).
Cortés S, Vasco F, Blanco E, 2000. El libro del Tejo. ARBA, Madrid, Spain. 336pp.
Fernández P, Fernández A, García E, Rodríguez M.J, Sánchez E, Vasco F, 2015. Yew matriarchies of the Sierra de Francia and ecology of recently identified Yew populations in the Central Iberian Mountain Range (Sistema Central). Forest Syst 24 (3): 10pp. https://doi.org/10.5424/fs/2015243-07472
Iszkulo G, 2011. Influence of biotic and abiotic factors on natural regeneration of European yew (Taxusbaccata L.): A review. Span J Rural Dev2(2): 1-6. https://doi.org/10.5261/2011.ESP2.01
López M.A, 1982. Arquitectura negra en el norte de Guadalajara. Periplo 47: 35-44pp.
Serra L, 2007. El tejo en el Mediterráneo Occidental. Jornadas Internacionales sobre el tejo y las tejeras en el Mediterráneo Occidental. Alcoy(Spain), January 2006.pp: 208.
Serra L, 2009. 9580* Bosques mediterráneos de Taxus baccata. In: Bases ecológicas preliminares para la conservación de los tipos de hábitat de interés comunitario en España. Ministerio de Medio Ambiente, y Medio Rural y Marino (ed), Spain. 64 pp.
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