Anthropogenic-driven rapid shifts in tree distribution lead to increased dominance of broadleaf species

Vayreda, J., Martinez-Vilalta, J., Gracia, M., Canadell, J.G., Retana, J. (2016) Anthropogenic-driven rapid shifts in tree distribution lead to increased dominance of broadleaf species. Global Change Biology. 22: 3984-3995.
Enllaç
Doi: 10.1111/gcb.13394

Resum:

Loss of water availability and stream biodiversity under land abandonment and climate change in a Mediterranean catchment (Olzinelles, NE Spain)

Otero I., Boada M., Badia A., Pla E., Vayreda J., Sabaté S., Gracia C.A., Peñuelas J. (2011) Loss of water availability and stream biodiversity under land abandonment and climate change in a Mediterranean catchment (Olzinelles, NE Spain). Land Use Policy. 28: 207-218.
Enllaç
Doi: 10.1016/j.landusepol.2010.06.002

Resum:

In the north rim of the Mediterranean region, where forest cover is increasing as a result of land abandonment and temperatures are rising as a result of climate change, there is increasing interest for the effects of such changes on the runoff of water courses. This is a paramount issue for the conservation of many freshwater habitats and species. In this work we studied the effects of both an increase in forest cover after depopulation and land abandonment and an increase in temperature on the runoff of a Mediterranean catchment and on the aquatic and semi-aquatic fauna species of the stream (Olzinelles valley, NE Spain). Although in our simulation no decreasing trend in runoff is detected, the monthly runoff-rainfall ratio is now 15% lower than 30 years ago, a fact that may be attributed to a drier period rather than to the small afforestation experienced by the catchment in the last decades. Other factors such as increasing temperatures, changing rainfall patterns and increasing canopy cover are discussed. The observed decrease in the water flow has caused the disappearance of white-clawed crayfish (Austropotamobius pallipes), Mediterranean barbel (Barbus meridionalis), chub (Squalius cephalus), European eel (Anguilla anguilla), and southern water vole (Arvicola sapidus). Our results suggest that in a progressively warmer climate, and especially after land abandonment processes, management of Mediterranean mountain areas should be oriented towards an appropriate distribution of agrarian and forest land-covers in terms of water availability. Down to the stream scale, the pools that keep water throughout the year should be conserved and extended to enhance its potential to maintain aquatic and semi-aquatic species populations. © 2010 Elsevier Ltd.

Llegeix més

Indicadores ecológicos en el marco del tercer inventario forestal nacional. Tarragona.

Ibàñez JJ, Vayreda J, Mata T, Gracia C (2005) Indicadores ecológicos en el marco del tercer inventario forestal nacional. Tarragona. Dirección general para la Biodiversidad. 107 pp. (ISBN 84-8014-480-7).

Confounding factors in the observational productivity-diversity relationship in forests. Chapter 4.

Vilà M, Inchausti P, Vayreda J, Barrantes O, Gracia C, Ibàñez JJ, Mata T (2005) Confounding factors in the observational productivity-diversity relationship in forests. Chapter 4. Ecological Studies 176:65-86. Scherer-Lorenzen M, Körner Ch, Schulze E-D (ed) Forest Diversity and Function: Temperate and Boreal Systems. Springer-Verlag Berlin Heidelberg, pp.65-86.

Biodiversity correlates with regional patterns of forest litter pools.

Vilà M, Vayreda J, Gracia C, Ibàñez J (2004) Biodiversity correlates with regional patterns of forest litter pools. Oecologia 139:641-646.

Does tree diversity increase wood production in pine forests?.

Vilà M, Vayreda J, Gracia C, Ibàñez JJ (2003) Does tree diversity increase wood production in pine forests?. Oecologia 135:299-303.

Large-scale environmental correlates of forest tree distributions in Catalonia (NE Spain).

Thuillier W, Vayreda J, Pino J, Sabaté S, Lavorel S, Gracia C (2003) Large-scale environmental correlates of forest tree distributions in Catalonia (NE Spain). Global Ecology and Biogeography 12:313-315.

Metodología complementaria al Inventario Forestal Nacional en Catalunya.

Ibàñez JJ, Vayreda J, Gracia C (2002) Metodología complementaria al Inventario Forestal Nacional en Catalunya. In Bravo F, Del Río M, Del Peso C (eds) El Inventario Forestal Nacional. Elemento clave para la gestión forestal sostenible. Ed. Fundación General de la Universidad de Valladolid, pp. 67-77.

Patrón geográfico de la riqueza de especies leñosas según el sistema de información de los bosques de Cataluya.

Vayreda J, Ibàñez JJ, Gracia C, Terradas J (2001) Patrón geográfico de la riqueza de especies leñosas según el sistema de información de los bosques de Cataluya. In Actas del Congreso de Ordenación y Gestión Sostenible de Montes. Tomo II:691-699.

Inventario Ecológico y Forestal de Cataluña: aportaciones y resultados.

Ibàñez JJ, Vayreda J, Burriel JA, Mata T, Gracia C (2001) Inventario Ecológico y Forestal de Cataluña: aportaciones y resultados. In Montes para la sociedad del nuevo milenio. III Congreso Forestal Español. Mesas 4 y 5:101-107. Junta de Andalucía.

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