Refine
Year of publication
Language
- English (53) (remove)
Keywords
- climate change (6)
- nitrogen deposition (5)
- Climate change (4)
- biodiversity (4)
- dispersal (4)
- Latitudinal gradient (3)
- disturbance (3)
- epizoochory (3)
- forest management (3)
- forestREplot (3)
- landscape diversity (3)
- plant diversity (3)
- seed bank (3)
- species assembly (3)
- temperature (3)
- wetland vegetation (3)
- Acer platanoides (2)
- Acer pseudoplatanus (2)
- Canopy (2)
- Disturbance (2)
- Global change (2)
- Global environmental change (2)
- Host-plant quality (2)
- Melampyrum pratense (2)
- Milium effusum (2)
- NE Germany (2)
- Nitrogen-limitation hypothesis (2)
- Rearing experiment (2)
- latitude (2)
- life‐history traits (2)
- local adaptation (2)
- nutrient stoichiometry (2)
- seed dispersal (2)
- seed provisioning (2)
- sexual reproduction (2)
- species richness (2)
- wood anemone (2)
- (semi-)permanent plots (1)
- <i>Fusarium oxysporum</i> (1)
- <i>Zygogonium ericetorum</i> (1)
- Above-ground (1)
- Acer (1)
- Aglais (1)
- Agricultural fertilization (1)
- Agricultural landscapes (1)
- Amur River (1)
- Ancient forest (1)
- Anemone nemorosa (1)
- Base cations (1)
- Below-ground (1)
- Biogeography (1)
- Bird species richness (1)
- Brandenburg (1)
- CLSM (1)
- CSR-strategies (1)
- Calcareous grassland (1)
- Canopy closure (1)
- Cell structures (1)
- Chronosequence (1)
- Clonal growth (1)
- Collection date (1)
- Community ecology (1)
- Competition (1)
- Confocal laser scanning microscopy (1)
- Coppice (1)
- Cover abundance (1)
- Cryptogams (1)
- Decomposition (1)
- Dendrochronology (1)
- Diaspore morphology (1)
- Diasporenmorphologie (1)
- Diversity (1)
- Ellenberg indicator values (1)
- Epizoochorie (1)
- Eutrophication (1)
- Fagus (1)
- Fertilization (1)
- Fire frequency (1)
- Forest species (1)
- Forest understorey (1)
- Fragmentation (1)
- Fraxinus (1)
- Functional trait diversity (1)
- Germination (1)
- Habitat fragmentation (1)
- Herb layer (1)
- High forest (1)
- Interactive effects (1)
- Intraspecific variation (1)
- Isolation (1)
- Kettle holes (1)
- Landscape connectivity (1)
- Landscape eutrophication (1)
- Life history traits (1)
- Light availability (1)
- Litter raking (1)
- Macroclimatic gradient (1)
- Multi-scale analysis (1)
- NWEurope (1)
- Naturally rare species (1)
- Nitrogen deposition (1)
- Nutrient cycling (1)
- Pattern-oriented parameter estimation (1)
- Phenotypic plasticity (1)
- Phosphorus (1)
- Pinus sylvestris (1)
- Plant community (1)
- Plant conservation (1)
- Post-agricultural forest (1)
- Precipitation (1)
- Quercus (1)
- Recently rare species (1)
- Regeneration (1)
- Reh (1)
- Seed provenance (1)
- Seed traits (1)
- Shannon diversity (1)
- Soil fertility (1)
- Spatiotemporal resurvey data (1)
- Species co-existence (1)
- Species diversity (1)
- Species traits (1)
- Sphagnum magellanicum (1)
- Stachys sylvatica (1)
- Storage effect (1)
- Surface preparation (1)
- Sus scrofa (1)
- Taxonomic position (1)
- Temperate forest (1)
- Temperature (1)
- Tree regeneration (1)
- Vegetation structure (1)
- Waldbodenpflanzen (1)
- Wetland species (1)
- Wildschwein (1)
- Wood anatomy (1)
- additive partitioning of biodiversity effects (1)
- artificial introduction (1)
- atmospheric deposition (1)
- atmospheric nitrogen deposition (1)
- basal area increment (1)
- biodiversity change (1)
- biological soil crust (1)
- cattle grazing (1)
- cell structure (1)
- climatic debt (1)
- colonization (1)
- common garden (1)
- common garden experiment (1)
- continuous pasture (1)
- dendroclimatology (1)
- desiccation tolerance (1)
- determinants of plant community diversity and structure (1)
- diaspore (1)
- diaspore morphology (1)
- diaspore weight (1)
- directed dispersal (1)
- dispersal of cryptogams (1)
- dispersal potential (1)
- disturbance regime (1)
- drought (1)
- dry grasslands (1)
- ecosystem services (1)
- ecosystem stability (1)
- electron microscopy (1)
- evenness (1)
- external dispersal (1)
- forest herbs (1)
- forest plant species (1)
- forest specialist (1)
- forest understorey (1)
- fragmentation (1)
- game browsing (1)
- generalist emergent group (1)
- growth chambers (1)
- herbaceous layer (1)
- historical ecology (1)
- homogenization (1)
- individual-based model (1)
- interspecific variation (1)
- intraspecific divergence (1)
- land use impact (1)
- large herbivores (1)
- large ungulate (1)
- latitudinal gradient (1)
- life history attributes (1)
- life-history traits (1)
- long-distance dispersal (1)
- lowland fen (1)
- management (1)
- management intensity (1)
- meadow (1)
- meta-analysis (1)
- multifactorial environmental change (1)
- myrmecochory (1)
- non-random dispersal (1)
- north-western Europe (1)
- northern peatlands (1)
- open-top chambers (1)
- organic farming (1)
- pH (1)
- phenotypic plasticity (1)
- plant community (1)
- plant functional traits (1)
- plant regeneration (1)
- plant-animal interaction (1)
- plant-climate interaction (1)
- population dynamics (1)
- pot experiment (1)
- quantitative wood anatomy (1)
- quasi-permanent plot (1)
- range edges (1)
- range shifts (1)
- re-survey (1)
- recruitment (1)
- reproduction (1)
- resurveys (1)
- roe deer (1)
- rotational pasture (1)
- secondary seed dispersal (1)
- seed (1)
- seed longevity (1)
- seed nitrogen (1)
- seed predation (1)
- seed production (1)
- seed quality (1)
- seedling establishment (1)
- shoot fragments (1)
- spatially explicit modelling (1)
- spatiotemporal resurvey data (1)
- species diversity (1)
- temperate deciduous forest (1)
- time lag (1)
- trampling (1)
- tree rings (1)
- tree-ring analysis (1)
- understory (1)
- vegetation resurvey (1)
- vegetative reproduction (1)
- wet grassland (1)
- wet grasslands (1)
- wetland ecosystems (1)
- wild boar (1)
- woodland herb (1)
Institute
- Institut für Biochemie und Biologie (53) (remove)
Ecological niches of organisms vary across geographical space, but niche shift patterns between regions and the underlying mechanisms remain largely unexplored. We studied shifts in the pH niche of 42 temperate forest plant species across a latitudinal gradient from northern France to boreo-nemoral Sweden. We asked 1) whether species restrict their niches with increasing latitude as they reach their northern range margin (environmental constraints); 2) whether species expand their niches with increasing latitude as regional plant species richness decreases (competitive release); and 3) whether species shift their niche position toward more acidic sites with increasing latitude as the relative proportion of acidic soils increases (local adaptation). Based on 1458 vegetation plots and corresponding soil pH values, we modelled species response curves using Huisman-Olff-Fresco models. Four niche measures (width, position, left and right border) were compared among regions by randomization tests. We found that with increasing latitude, neutrophilic species tended to retreat from acidic sites, indicating that these species retreat to more favorable sites when approaching their range margin. Alternatively, these species might benefit from enhanced nitrogen deposition on formerly nutrient-poor, acidic sites in southern regions or lag behind in post-glacial recolonization of potential habitats in northern regions. Most acidophilic species extended their niche toward more base-rich sites with increasing latitude, indicating competitive release from neutrophilic species. Alternatively, acidophilic species might benefit from optimal climatic conditions in the north where some have their core distribution area. Shifts in the niche position suggested that local adaptation is of minor importance. We conclude that shifts in the pH niche of temperate forest plants are the rule, but the directions of the niche shifts and possible explanations vary. Our study demonstrates that differentiating between acidophilic and neutrophilic species is crucial to identify general patterns and underlying mechanisms.
The nutrient concentration in seeds determines many aspects of potential success of the sexual reproductive phase of plants, including the seed predation probability, efficiency of seed dispersal and seedling performance. Despite considerable research interest in latitudinal gradients of foliar nutrients, a similar gradient for seeds remains unexplored. We investigated a potential latitudinal gradient in seed nutrient concentrations within the widespread European understorey forest herb Anemone nemorosa L. We sampled seeds of A. nemorosa in 15 populations along a 1900-km long latitudinal gradient at three to seven seed collection dates post-anthesis and investigated the relative effects of growing degree-hours > 5 degrees C, soil characteristics and latitude on seed nutrient concentrations. Seed nitrogen, nitrogen:phosphorus ratio and calcium concentration decreased towards northern latitudes, while carbon:nitrogen ratios increased. When taking differences in growing degree-hours and measured soil characteristics into account and only considering the most mature seeds, the latitudinal decline remained particularly significant for seed nitrogen concentration. We argue that the decline in seed nitrogen concentration can be attributed to northward decreasing seed provisioning due to lower soil nitrogen availability or greater investment in clonal reproduction. This pattern may have large implications for the reproductive performance of this forest herb as the degree of seed provisioning ultimately co-determines seedling survival and reproductive success.