Cumulative effects of fire and drought in Mediterranean ecosystems

Batllori E., Dećaceres M., Brotons L., Ackerly D.D., Moritz M.A., Lloret F. (2017) Cumulative effects of fire and drought in Mediterranean ecosystems. Ecosphere. 8: 0-0.
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Doi: 10.1002/ecs2.1906

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The occurrence of multiple disturbances can jointly affect the recovery capacity of ecosystems, potentially leading to changes in vegetation dynamics or loss of resilience. The effects of interacting disturbances on ecosystems are, however, not well understood. We use a model system based on Mediterraneantype ecosystems (MTEs) to examine how the interplay between vegetation regeneration traits and compound, stochastic disturbances modulate ecosystem dynamics. We developed a state-and-transition simulation model including two tree species with contrasting regeneration strategies (seeder vs. resprouter) and a shrubland formation. We aim to assess potential compositional switches under contrasted scenarios of compound fire-drought regimes, and to characterize the cumulative effects of fire-drought (synergism vs. antagonism) relative to the effects of individual disturbance regimes. Our simulation results indicate that interaction between moderate fire and sporadic drought recurrence-as opposed to chronic dryness-can act as a strong mechanism generating highly heterogeneous landscapes in which different regeneration types coexist, as observed in MTEs. Resprouters dominated under individual, moderate disturbance regimes of fire or drought, whereas the interaction of the two disturbances promoted the longterm coexistence of both tree regeneration strategies. However, shrubland expansion and persistence at the expanse of forests was favored by increases in drought recurrence and associated fire-drought interactions, highlighting the potential for important vegetation changes in MTEs under climate change. Overall, the cumulative effects of fire and drought can lead to distinct landscape configurations under moderate disturbance regimes that are otherwise only attained under high frequency of individual disturbances. At the ecosystem level, however, we suggest that disturbance-induced vegetation dynamics can modify vegetation sensitivity and resilience to further disturbances precluding the prevalence of synergistic effects of the two disturbances. © 2017 Batllori et al.

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Potential relocation of climatic environments suggests high rates of climate displacement within the North American protection network

Batllori, E., Parisien, M.-A., Parks, S.A., Moritz, M.A., Miller, C. (2017) Potential relocation of climatic environments suggests high rates of climate displacement within the North American protection network. Global Change Biology. : 0-0.
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Doi: 10.1111/gcb.13663

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Bañol, C., Pérez, N., Piñol, J., Barrientos, J.A., Ventura, D. (2017) Interaction of the aphid-parasitoid-ant network in plants associated with an organic citrus grove [Interacción de la red áfido-parasitoide-hormiga en plantas asociadas a un cultivo ecológico de cítricos]. Ecosistemas. 26: 67-79.
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Doi: 10.7818/ECOS.2017.26-3.09

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Blanco, S., Pla-Rabès, S., Wetzel, C.E., Granados, I. (2017) A New Psammothidium Species (Bacillariophyta, Achnanthidiaceae) from Cimera Lake (Gredos Mountain Range), Central Spain. Cryptogamie, Algologie. 38: 17-29.
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Doi: 10.7872/crya/v38.iss1.2017.17

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The Moran effect and environmental vetoes: Phenological synchrony and drought drive seed production in a Mediterranean oak

Bogdziewicz, M., Fernández-Martínez, M., Bonal, R., Belmonte, J., Espelta, J.M. (2017) The Moran effect and environmental vetoes: Phenological synchrony and drought drive seed production in a Mediterranean oak. Proceedings of the Royal Society B: Biological Sciences. 284: 0-0.
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Doi: 10.1098/rspb.2017.1784

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Masting in wind-pollinated trees: System-specific roles of weather and pollination dynamics in driving seed production

Bogdziewicz, M., Szymkowiak, J., Kasprzyk, I., Grewling, Ł., Borowski, Z., Borycka, K., Kantorowicz, W., Myszkowska, D., Piotrowicz, K., Ziemianin, M., Pesendorfer, M.B. (2017) Masting in wind-pollinated trees: System-specific roles of weather and pollination dynamics in driving seed production. Ecology. 98: 0-0.
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Doi: 10.1002/ecy.1951

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Land surface phenology from Copernicus Global Land time series

Bornez, K., Verger, A., Filella, I., Penuelas, J. (2017) Land surface phenology from Copernicus Global Land time series. 2017 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images, MultiTemp 2017. : 0-0.
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Doi: 10.1109/Multi-Temp.2017.8035262

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Human population growth offsets climate-driven increase in woody vegetation in sub-Saharan Africa

Brandt, M., Rasmussen, K., Peñuelas, J., Tian, F., Schurgers, G., Verger, A., Mertz, O., Palmer, J.R.B., Fensholt, R. (2017) Human population growth offsets climate-driven increase in woody vegetation in sub-Saharan Africa. Nature Ecology and Evolution. 1: 0-0.
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Doi: 10.1038/s41559-017-0081

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Nutrient stoichiometry and land use rather than species richness determine plant functional diversity

Busch, V., Klaus, V.H., Penone, C., Schäfer, D., Boch, S., Prati, D., Müller, J., Socher, S.A., Niinemets, U., Peñuelas, J., Hölzel, N., Fischer, M., Kleinebecker, T. (2017) Nutrient stoichiometry and land use rather than species richness determine plant functional diversity. Ecology and Evolution. : 0-0.
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Doi: 10.1002/ece3.3609

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Mapping local and global variability in plant trait distributions

Butler, E.E., Datta, A., Flores-Moreno, H., Chen, M., Wythers, K.R., Fazayeli, F., Banerjee, A., Atkin, O.K., Kattge, J., Amiaud, B., Blonder, B., Boenisch, G., Bond-Lamberty, B., Brown, K.A., Byun, C., Campetella, G., Cerabolini, B.E.L., Cornelissen, J.H.C., Craine, J.M., Craven, D., De Vries, F.T., Díaz, S., Domingues, T.F., Forey, E., González-Melo, A., Gross, N., Han, W., Hattingh, W.N., Hickler, T., Jansen, S., Kramer, K., Kraft, N.J.B., Kurokawa, H., Laughlin, D.C., Meir, P., Minden, V., Niinemets, Ü., Onoda, Y., Peñuelas, J., Read, Q., Sack, L., Schamp, B., Soudzilovskaia, N.A., Spasojevic, M.J., Sosinski, E., Thornton, P.E., Valladares, F., Van Bodegom, P.M., Williams, M., Wirth, C., Reich, P.B., Schlesinger, W.H. (2017) Mapping local and global variability in plant trait distributions. Proceedings of the National Academy of Sciences of the United States of America. 114: 0-0.
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Doi: 10.1073/pnas.1708984114

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