9 documents found, page 1 of 1
Too much diversity—Multiple definitions of geodiversity hinder its potential in...
Maliniemi, Tuija; Tukiainen, Helena; Hjort, Jan; Toivanen, Maija; Vernham, Grant; Bailey, Joseph J.; Baines, Oliver; Benniston, Lucy; Brilha, J. B.Geodiversity—the diversity of abiotic features and pro-cesses of the Earth's surface and subsurface—is an increasingly used concept in ecological research. A growing body of scientific literature has provided evidence of positive links between geodiversity and biodiversity. These studies highlight the potential of geodiversity to improve our understanding of biodiversity patterns and to complement current biodi...
Height-diameter allometry of tropical forest trees
Feldpausch, Ted R.; Banin, Lindsay F.; Phillips, Oliver L.; Baker, Timothy R.; Lewis, Simon L.; Quesada, Carlos Alberto; Affum-Baffoe, KofiTropical tree height-diameter (<i>H:D</i>) relationships may vary by forest type and region making large-scale estimates of above-ground biomass subject to bias if they ignore these differences in stem allometry. We have therefore developed a new global tropical forest database consisting of 39 955 concurrent <i>H</i> and <i>D</i> measurements encompassing 283 sites in 22 tropical countries. Utilising this data...
Structural, physiognomic and above-ground biomass variation in savanna-forest t...
Veenendaal, Elmar M.; Torello-Raventos, Mireia; Feldpausch, Ted R.; null, Tomas; Gerard, France F.; Schrodt, Franziska; Saiz, GustavoThrough interpretations of remote-sensing data and/or theoretical propositions, the idea that forest and savanna represent "alternative stable states" is gaining increasing acceptance. Filling an observational gap, we present detailed stratified floristic and structural analyses for forest and savanna stands located mostly within zones of transition (where both vegetation types occur in close proximity) in Afri...
Foliar trait contrasts between African forest and savanna trees: Genetic versus...
Schrodt, Franziska; null, Tomas; Feldpausch, Ted R.; Saiz, Gustavo; Quesada, Carlos Alberto; Schwarz, Michael; Ishida, Francoise Yoko; Compaoré, HalidouVariations in leaf mass per unit area (Ma) and foliar concentrations of N, P, C, K, Mg and Ca were determined for 365 trees growing in 23 plots along a West African precipitation gradient ranging from 0.29 to 1.62m a-1. Contrary to previous studies, no marked increase in Ma with declining precipitation was observed, but savanna tree foliar [N] tended to be higher at the drier sites (mass basis). Generally, Ma w...
Edaphic, structural and physiological contrasts across Amazon Basin forest-sava...
Lloyd, Jon; null, Tomas; Schrodt, Franziska; Ishida, Francoise Yoko; Feldpausch, Ted R.; Saiz, Gustavo; Quesada, Carlos Alberto; Schwarz, MichaelSampling along a precipitation gradient in tropical South America extending from ca. 0.8 to 2.0 m ag-1, savanna soils had consistently lower exchangeable cation concentrations and higher C/N ratios than nearby forest plots. These soil differences were also reflected in canopy averaged leaf traits with savanna trees typically having higher leaf mass per unit area but lower mass-based nitrogen (Nm) and potassium ...
The influence of C3 and C4 vegetation on soil organic matter dynamics in contra...
Saiz, Gustavo; Bird, Michael I.; Wurster, Christopher M.; Quesada, Carlos Alberto; Ascough, Philippa L.; null, Tomas; Schrodt, FranziskaVariations in the carbon isotopic composition of soil organic matter (SOM) in bulk and fractionated samples were used to assess the influence of C3 and C4 vegetation on SOM dynamics in semi-natural tropical ecosystems sampled along a precipitation gradient in West Africa. Differential patterns in SOM dynamics in C3/C4 mixed ecosystems occurred at various spatial scales. Relative changes in C / N ratios between ...
Biome-specific effects of nitrogen and phosphorus on the photosynthetic charact...
null, Tomas; Ishida, Francoise Yoko; Feldpausch, Ted R.; Grace, John; Meir, Patrick W.; Saiz, Gustavo; Séné, Olivier; Schrodt, FranziskaPhotosynthesis/nutrient relationships of proximally growing forest and savanna trees were determined in an ecotonal region of Cameroon (Africa). Although area-based foliar N concentrations were typically lower for savanna trees, there was no difference in photosynthetic rates between the two vegetation formation types. Opposite to N, area-based P concentrations were—on average—slightly lower for forest trees; a...
Climatic and edaphic controls over tropical forest diversity and vegetation car...
Hofhansl, Florian; Chacón-Madrigal, Eduardo; Fuchslueger, Lucia; Jenking, Daniel; Morera-Beita, Albert; Plutzar, Christoph; Silla, FernandoTropical rainforests harbor exceptionally high biodiversity and store large amounts of carbon in vegetation biomass. However, regional variation in plant species richness and vegetation carbon stock can be substantial, and may be related to the heterogeneity of topoedaphic properties. Therefore, aboveground vegetation carbon storage typically differs between geographic forest regions in association with the loc...
TRY plant trait database – enhanced coverage and open access
Kattge, Jens; Bönisch, Gerhard; Díaz, Sandra; Lavorel, Sandra; Prentice, Iain Colin; Leadley, Paul; Tautenhahn, Susanne; Werner, Gijsbert D. A.Made available in DSpace on 2020-12-12T01:00:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01; AXA Research Fund; Max-Planck-Gesellschaft; Natural Environment Research Council; Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem ...