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001-es BibID:BIBFORM081373
Első szerző:Cailleret, Maxime
Cím:A synthesis of radial growth patterns preceding tree mortality / Maxime Cailleret, Steven Jansen, Elisabeth M. R. Robert, Lucía Desoto, Tuomas Aakala, Joseph A. Antos, Barbara Beikircher, Christof Bigler, Harald Bugmann, Marco Caccianiga, Vojtěch Čada, Jesus J. Camarero, Paolo Cherubini, Hervé Cochard, Marie R. Coyea, Katarina Čufar, Adrian J. Das, Hendrik Davi, Sylvain Delzon, Michael Dorman, Guillermo Gea-Izquierdo, Sten Gillner, Laurel J. Haavik, Henrik Hartmann, Ana-Maria Hereş, Kevin R. Hultine, Pavel Janda, Jeffrey M. Kane, Vyacheslav I. Kharuk, Thomas Kitzberger, Tamir Klein, Koen Kramer, Frederic Lens, Tom Levanic, Juan C. Linares Calderon, Francisco Lloret, Raquel Lobo-Do-Vale, Fabio Lombardi, Rosana López Rodríguez, Harri Mäkinen, Stefan Mayr, Ilona Mészáros, Juha M. Metsaranta, Francesco Minunno, Walter Oberhuber, Andreas Papadopoulos, Mikko Peltoniemi, Any M. Petritan, Brigitte Rohner, Gabriel Sangüesa-Barreda, Dimitrios Sarris, Jeremy M. Smith, Amanda B. Stan, Frank Sterck, Dejan B. Stojanović, Maria L. Suarez, Miroslav Svoboda, Roberto Tognetti, José M. Torres-Ruiz, Volodymyr Trotsiuk, Ricardo Villalba, Floor Vodde, Alana R. Westwood, Peter H. Wyckoff, Nikolay Zafirov, Jordi Martínez-Vilalta
Dátum:2017
ISSN:1354-1013
Megjegyzések:Tree mortality is a key factor influencing forest functions and dynamics, but our understanding of the mechanisms leading to mortality and the associated changes in tree growth rates are still limited. We compiled a new pan?continental tree?ring width database from sites where both dead and living trees were sampled (2970 dead and 4224 living trees from 190 sites, including 36 species), and compared early and recent growth rates between trees that died and those that survived a given mortality event. We observed a decrease in radial growth before death in ca. 84% of the mortality events. The extent and duration of these reductions were highly variable (1-100 years in 96% of events) due to the complex interactions among study species and the source(s) of mortality. Strong and long?lasting declines were found for gymnosperms, shade? and drought?tolerant species, and trees that died from competition. Angiosperms and trees that died due to biotic attacks (especially bark?beetles) typically showed relatively small and short?term growth reductions. Our analysis did not highlight any universal trade-off between early growth and tree longevity within a species, although this result may also reflect high variability in sampling design among sites. The intersite and interspecific variability in growth patterns before mortality provides valuable information on the nature of the mortality process, which is consistent with our understanding of the physiological mechanisms leading to mortality. Abrupt changes in growth immediately before death can be associated with generalized hydraulic failure and/or bark?beetle attack, while long?term decrease in growth may be associated with a gradual decline in hydraulic performance coupled with depletion in carbon reserves. Our results imply that growth?based mortality algorithms may be a powerful tool for predicting gymnosperm mortality induced by chronic stress, but not necessarily so for angiosperms and in case of intense drought or bark?beetle outbreaks.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
angiosperms
death
drought
growth
gymnosperms
pathogens
ring-width
tree mortality
Megjelenés:Global Change Biology. - 23 : 4 (2017), p. 1675-1690. -
További szerzők:Jansen, Steven Robert, Elisabeth M. R. Desoto, Lucía Aakala, Tuomas Antos, Joseph A. Beikircher, Barbara Bigler, Christof Bugmann, Harald Caccianiga, Marco Čada, Vojtěch Camarero, Jesús Julio Cherubini, Paolo Cochard, Hervé Coyea, Marie R. Čufar, Katarina Das, Adrian J. Davi, Hendrik Delzon, Sylvain Dorman, Michael Gea-Izquierdo, Guillermo Gillner, Sten Haavik, Laurel J. Hartmann, Henrik Hereş, Ana-Maria Hultine, Kevin R. Janda, Pavel Kane, Jeffrey M. Kharuk, Vyacheslav I. Kitzberger, Thomas Klein, Tamir Kramer, Koen Lens, Frederic Levanic, Tom Linares Calderon, Juan C. Lloret, Francisco Lobo-Do-Vale, Raquel Lombardi, Fabio López Rodríguez, Rosana Mäkinen, Harri Mayr, Stefan Mészáros Ilona (1952-) (biológus) Metsaranta, Juha M. Minunno, Francesco Oberhuber, Walter Papadopoulos, Andreas Peltoniemi, Mikko Petritan, Any M. Rohner, Brigitte Sangüesa-Barreda, Gabriel Sarris, Dimitrios Smith, Jeremy M. Stan, Amanda B. Sterck, Frank Stojanović, Dejan B. Suarez, María Laura Svoboda, Miroslav Tognetti, Roberto Torres-Ruiz, José M. Trotsiuk, Volodymyr Villalba, Ricardo Vodde, Floor Westwood, Alana R. Wyckoff, Peter H. Zafirov, Nikolay Martínez-Vilalta, Jordi
Pályázati támogatás:OTKA K101552
OTKA
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2.

001-es BibID:BIBFORM079602
Első szerző:Fekete István
Cím:Long-term effects of climate change on carbon storage and tree species composition in a dry deciduous forest / István Fekete, Kate Lajtha, Zsolt Kotroczó, Gábor Várbíró, Csaba Varga, János Attila Tóth, Ibolya Demeter, Gábor Veperdi, Imre Berki
Dátum:2017
ISSN:1354-1013
Megjegyzések:Forest vegetation and soils have been suggested as potentially important sinks forcarbon (C) with appropriate management and thus are implicated as effective toolsin stabilizing climate even with increasing anthropogenic release of CO2. Drought,however, which is often predicted to increase in models of future climate change,may limit net primary productio (NPP) of dry forest types, with unknown effects onsoil C storage. We studied C dynamics of a deciduous temperate forest of Hungarythat has been subject to significant decreases in precipitation and increases in tem-perature in recent decades. We resampled plots that were established in 1972 andrepeated the full C inventory by analyzing more than 4 decades of data on the num-ber of living trees, biomass of trees and shrubs, and soil C content. Our analysesshow that the decline in number and biomass of oaks started around the end of the1970s with a 71% reduction in the number of sessile oak stems by 2014. Projectedgrowth in this forest, based on the yield table's data for Hungary, was 4.6 kg C/m2.Although new species emerged, this new growth and small increases in oak biomassresulted in only 1.9 kg C/m2increase over 41 years. The death of oaks increasedinputs of coarse woody debris to the surface of the soil, much of which is still iden-tifiable, and caused an increase of 15.5%, or 2.6 kg C/m2, in the top 1 m of soil.Stability of this fresh organic matter input to surface soil is unknown, but is likely tobe low based on the results of a colocated woody litter decomposition study. Theeffects of a warmer and drier climate on the C balance of forests in this region willbe felt for decades to come as woody litter inputs decay, and forest growth remainsimpeded.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
coarse woody debris
dry conditions in forest
forest stand composition and diversity change
net primary production
oak decline
Síkfőkút Forest
soil carbon storage
Megjelenés:Global Change Biology. - 23 : 8 (2017), p. 3154-3168. -
További szerzők:Lajtha, Kate Kotroczó Zsolt (1975-) (biológus, ökológus) Várbíró Gábor (biológus) Varga Csaba Tóth János Attila (1945-) (ökológus) Demeter Ibolya (1985-) (anyagmérnök) Veperdi Gábor Berki Imre
Pályázati támogatás:GINOP 2.3.3-15-2016-00019
GINOP
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3.

001-es BibID:BIBFORM105229
035-os BibID:(WOS)000504934700001 (Scopus)85075196338
Első szerző:Kattge, Jens
Cím:TRY plant trait database - enhanced coverage and open access / Jens Kattge, ... Ilona Mészáros, ... Péter Török, ... Béla Tóthmérész, ...Molnár V. Attila,... Christian Wirth
Dátum:2019
ISSN:1354-1013 1365-2486
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Global Change Biology. - 26 : 1 (2019), p. 119-188. -
További szerzők:Mészáros Ilona (1952-) (biológus) Török Péter (1979-) (biológus-ökológus) Tóthmérész Béla (1960-) (ökológus) Molnár V. Attila (1969-) (biológus, botanikus) Wirth, Christian
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4.

001-es BibID:BIBFORM013496
Első szerző:Végvári Zsolt (biológus)
Cím:Life history predicts advancement of avian spring migration in response to climate change / Zsolt Végvári, Veronika Bókony, Zoltán Barta, Gábor Kovács
Dátum:2010
ISSN:1354-1013
Megjegyzések:An increasing number of studies demonstrate that plant and animal phenologies such as the timing of bird migration have been advancing over the globe, likely as a result of climate change. Even closely related species differ in their phenological responses, and the sources of this variation are poorly established.We used a large, standardized dataset of first arrival dates (FAD) of migratory birds to test the effects of phylogenetic relationships and various life-history and ecological traits on the degree to which different species adapt to climate change by earlier migration in spring. Using the phylogenetic comparative method, we found that the advancement of FAD was greater in species with more generalized diet, shorter migration distance, more broods per year, and less extensive prebreeding molt. In turn, we found little evidence that FAD trends were influenced by competition for mating (polygamy or extra-pair paternity) and breeding opportunities (cavity nests). Our findings were robust to several potentially confounding effects. These evolutionary correlations, coupled with the low levels of phylogenetic dependence we found, indicate that avian migration phenology adapts to climate change as a species-specific response. Our results suggest that the degree of this response is fundamentally shaped by constraints and selection pressures of the species' life history, and less so by the intensity of sexual selection.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
bird migration
climatic change
Hortobágy
phylogenetic comparative method
Megjelenés:Global Change Biology. - 16 : 1 (2010), p. 1-11. -
További szerzők:Bókony Veronika (alkalmazott zoológus) Barta Zoltán (1967-) (biológus, zoológus) Kovács Gábor
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