info:eu-repo/semantics/article
Global environmental change effects on plant community composition trajectories depend upon management legacies
Fecha
2018-04Registro en:
Perring, Michael P.; Bernhardt Römermann, Markus; Baeten, Lander; Midolo, Gabriele; Blondeel, Haben; et al.; Global environmental change effects on plant community composition trajectories depend upon management legacies; Wiley Blackwell Publishing, Inc; Global Change Biology; 24; 4; 4-2018; 1722-1740
1354-1013
1365-2486
CONICET Digital
CONICET
Autor
Perring, Michael P.
Bernhardt Römermann, Markus
Baeten, Lander
Midolo, Gabriele
Blondeel, Haben
Depauw, Leen
Landuyt, Dries
Maes, Sybryn L.
De Lombaerde, Emiel
Carón, María Mercedes
Vellend, Mark
Brunet, Jörg
Chudomelová, Markéta
Decocq, Guillaume
Diekmann, Martin
Dirnböck, Thomas
Dörfler, Inken
Durak, Tomasz
De Frenne, Pieter
Gilliam, Frank S.
Hédl, Radim
Heinken, Thilo
Hommel, Patrick
Jaroszewicz, Bogdan
Kirby, Keith J.
Kopecký, Martin
Lenoir, Jonathan
Li, Daijiang
Máliš, František
Mitchell, Fraser J.G.
Resumen
The contemporary state of functional traits and species richness in plant communities depends on legacy effects of past disturbances. Whether temporal responses of community properties to current environmental changes are altered by such legacies is, however, unknown. We expect global environmental changes to interact with land-use legacies given different community trajectories initiated by prior management, and subsequent responses to altered resources and conditions. We tested this expectation for species richness and functional traits using 1814 survey-resurvey plot pairs of understorey communities from 40 European temperate forest datasets, syntheses of management transitions since the year 1800, and a trait database. We also examined how plant community indicators of resources and conditions changed in response to management legacies and environmental change. Community trajectories were clearly influenced by interactions between management legacies from over 200 years ago and environmental change. Importantly, higher rates of nitrogen deposition led to increased species richness and plant height in forests managed less intensively in 1800 (i.e., high forests), and to decreases in forests with a more intensive historical management in 1800 (i.e., coppiced forests). There was evidence that these declines in community variables in formerly coppiced forests were ameliorated by increased rates of temperature change between surveys. Responses were generally apparent regardless of sites’ contemporary management classifications, although sometimes the management transition itself, rather than historic or contemporary management types, better explained understorey responses. Main effects of environmental change were rare, although higher rates of precipitation change increased plant height, accompanied by increases in fertility indicator values. Analysis of indicator values suggested the importance of directly characterising resources and conditions to better understand legacy and environmental change effects. Accounting for legacies of past disturbance can reconcile contradictory literature results and appears crucial to anticipating future responses to global environmental change.