| |
Records |
Links |
|
Author |
Baraloto, C.; Alverga, P.; Quispe, S.B.; Barnes, G.; Chura, N.B.; da Silva, I.B.; Castro, W.; da Souza, H.; de Souza Moll, I.E.; Del Alcazar Chilo, J.; Linares, H.D.; Quispe, J.G.; Kenji, D.; Marsik, M.; Medeiros, H.; Murphy, S.; Rockwell, C.; Selaya, G.; Shenkin, A.; Silveira, M.; Southworth, J.; Vasquez Colomo, G.H.; Perz, S. |
|
| |
Title |
Effects of road infrastructure on forest value across a tri-national Amazonian frontier |
Type |
Journal Article |
| |
Year |
2015 |
Publication |
Biological Conservation |
Abbreviated Journal |
Biological Conservation |
|
| |
Volume |
191 |
Issue |
|
Pages  |
674-681 |
|
| |
Keywords |
Açai; Biodiversity; Brazil nut; Carbon stocks; Connectivity; Infrastructure; Livelihood; Ntfp; Redd; Road impact; Rubber; Timber; Tropical rainforest |
|
| |
Abstract |
Road construction demonstrably accelerates deforestation rates in tropical forests, but its consequences for forest degradation remain less clear. We estimated a series of forest value metrics including components of biodiversity, carbon stocks, and timber and non-timber forest product resources, along the recently paved Inter-Oceanic Highway (IOH) integrating Brazil and Peru along the Bolivian border. We installed 69 vegetation plots in intact terra firme forests representative of local community holdings near and far from the IOH, and we characterized 15 components of forest value for each plot.We observed strong geographic gradients in forest value components across the region, with increases from west to east in aboveground biomass and in the abundance of timber and non-timber forest product trees and regeneration. Plots in communities in Pando, Bolivia, where the IOH remains in part unpaved, had the highest aboveground biomass, standing timber volumes and Brazil nut tree density. In contrast, communities in Madre de Dios, Peru, where settlements and unpaved portions of the IOH have existed for decades, and in Acre, Brazil, where paving of the IOH has been underway for more than a decade, were more degraded. Seven of the fifteen forest value components we measured increased with increasing distance from the IOH, although the magnitude of these effects was weak. Landscape scale remote sensing analyses showed much stronger effects of road proximity on deforestation. We suggest that remote sensing techniques including canopy spectral signatures might be calibrated to characterize multiple components of forest value, so that we can estimate landscape scale impacts of infrastructure developments on both deforestation and forest degradation in tropical regions. © 2015 Elsevier B.V. |
|
| |
Address |
International Center for Tropical Botany, Department of Earth and Environment, Florida International University, Miami, FL, United States |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Export Date: 8 September 2015 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
619 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Male, P.J.G.; Loiseau, A.; Estoup, A.; Quilichini, A.; Orivel, J. |
|
| |
Title |
Characterization of polymorphic microsatellite loci in the neotropical plant-ant Allomerus decemarticulatus (Formicidae: Myrmicinae) and multiplexing with other microsatellites from the ant subfamily Myrmicinae |
Type |
Journal Article |
| |
Year |
2010 |
Publication |
European Journal of Entomology |
Abbreviated Journal |
Eur. J. Entomol. |
|
| |
Volume |
107 |
Issue |
4 |
Pages |
673-675 |
|
| |
Keywords |
Hymenoptera; Formicidae; Myrmicinae; Allomerus; ant-plant mutualism; microsatellites; plant-ant |
|
| |
Abstract |
Five polymorphic microsatellite loci of the arboreal ant Allomerus decemarticulatus (Myrmicinae) were isolated and characterized. The amplification and polymorphism of seven additional microsatellite loci, previously developed for the ant species A. octoarticulatus and Wasmannia auropunctata, were also tested and the amplification conditions necessary for genotyping the complete set of 12 multiplexed markers in A. decemarticulatus determined. The number of alleles per locus ranged from three to 15 and observed heterozygosity varied front 0.09 to 0.95. Cross-species amplification of these loci was also successfully achieved in additional species of the same ant subfamily, Myrmicinae. This set of microsatellite markers will be used in studies on the mating system and population genetic structure of Myrmicinae in general and A. decemarticulatus in particular. |
|
| |
Address |
[Male, Pierre-Jean G.; Orivel, Jerome] Univ Toulouse, Lab Evolut & Divers Biol EDB, UMR 5174, F-31062 Toulouse 9, France, Email: pjmale@cict.fr |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
CZECH ACAD SCI, INST ENTOMOLOGY |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1210-5759 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000284434300020 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
19 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Delabie, J.H.C.; Cereghino, R.; Groc, S.; Dejean, A.; Gibernau, M.; Corbara, B.; Dejean, A. |
|
| |
Title |
Ants as biological indicators of Wayana Amerindian land use in French Guiana |
Type |
Journal Article |
| |
Year |
2009 |
Publication |
Comptes Rendus Biologies |
Abbreviated Journal |
C. R. Biol. |
|
| |
Volume |
332 |
Issue |
7 |
Pages |
673-684 |
|
| |
Keywords |
Landscape ecology; Traditional land use; Formicidae; Rapid assessment; Pit-fall traps; Self-Organizing Maps |
|
| |
Abstract |
We examined the ecological impact of traditional land use by Wayana Amerindians in French Guiana using ants as bio-indicators. Ants were sampled through a rapid assessment method and the core results analyzed using Kohonen's self-organizing maps (SOM). Our sample sites included: (1) a Wayana village; (2) a cassava plantation; (3) an abandoned cassava plantation; (4) a forest fragment near the village; (5) a riparian forest; and (6) a primary terra firma forest. The ant diversity decreases according to the decree to which the habitat is disturbed. The SOM allowed us to compare the ecological succession between the six habitats. The protocol used is robust since the same conclusions were drawn using partial data. To cite this article: J.H.C Delabie et al., C R. Biologies 332 (2009). (C) 2009 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. |
|
| |
Address |
[Groc, Sarah; Dejean, Andrea; Dejean, Alain] CNRS, UMR 8172, F-97379 Kourou, France, Email: alain.dejean@wanadoo.fr |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1631-0691 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000267243700009 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
109 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Rutishauser, E.; Wagner, F.; Herault, B.; Nicolini, E.A.; Blanc, L. |
|
| |
Title |
Contrasting above-ground biomass balance in a Neotropical rain forest |
Type |
Journal Article |
| |
Year |
2010 |
Publication |
Journal of Vegetation Science |
Abbreviated Journal |
J. Veg. Sci. |
|
| |
Volume |
21 |
Issue |
4 |
Pages |
672-682 |
|
| |
Keywords |
Biomass balance; Biomass fluxes; Forest dynamics; Permanent plots; Tropical forests |
|
| |
Abstract |
Question What are the relative roles of tree growth, mortality and recruitment in variations of above-ground biomass in tropical forests? Location Paracou, French Guiana. Methods We quantified the contribution of growth, recruitment and mortality to total biomass of stands (trees DBH >= 10 cm) in six 6.25-ha permanent plots over 16 yr. Live biomass stocks and fluxes were computed for four separate size classes. Results All plots showed increasing biomass stocks over the study period, with an average value of +0.9 Mg ha-1 yr-1. Plots aggrading biomass were characterized by either minor biomass losses due to mortality or substantial increases in the biomass of large trees (DBH >= 60 cm). Conclusions Within the study period, the rarity of mortality events could not counter-balance the slow permanent increase in biomass, resulting in an apparent increase in biomass. Accounting for such rare events results in no net change in biomass balance. |
|
| |
Address |
[Rutishauser, Ervan; Nicolini, Eric-Andre] Cirad, UMR AMAP, Kourou 97379, French Guiana, Email: ervan.rutishauser@cirad.fr |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
WILEY-BLACKWELL PUBLISHING, INC |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1100-9233 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000279450200005 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
52 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Martos, F.; Dulormne, M.; Pailler, T.; Bonfante, P.; Faccio, A.; Fournel, J.; Dubois, M.-P.; Selosse, M.-A. |
|
| |
Title |
Independent recruitment of saprotrophic fungi as mycorrhizal partners by tropical achlorophyllous orchids |
Type |
Journal Article |
| |
Year |
2009 |
Publication |
New Phytologist |
Abbreviated Journal |
New Phytologist |
|
| |
Volume |
184 |
Issue |
3 |
Pages |
668-681 |
|
| |
Keywords |
Mycoheterotrophy; Mycorrhizas; Orchids; Rainforests; Saprotrophic fungi; Stable isotopes |
|
| |
Abstract |
Mycoheterotrophic orchids have adapted to shaded forest understory by shifting to achlorophylly and receiving carbon from their mycorrhizal fungi. In temperate forests, they associate in a highly specific way with fungi forming ectomycorrhizas on nearby trees, and exploiting tree photosynthates. However, many rainforests lack ectomycorrhizal fungi, and there is evidence that some tropical Asiatic species associate with saprotrophic fungi. To investigate this in different geographic and phylogenetic contexts, we identified the mycorrhizal fungi supporting two tropical mycoheterotrophic orchids from Mascarene (Indian Ocean) and Caribbean islands. We tested their possible carbon sources by measuring natural nitrogen (15N) and carbon (13C) abundances. Saprotrophic basidiomycetes were found: Gastrodia similis associates with a wood-decaying Resinicium (Hymenochaetales); Wullschlaegelia aphylla associates with both litter-decaying Gymnopus and Mycena species, whose rhizomorphs link orchid roots to leaf litter. The 15N and 13C abundances make plausible food chains from dead wood to G. similis and from dead leaves to W. aphylla. We propose that temperature and moisture in rainforests, but not in most temperate forests, may favour sufficient saprotrophic activity to support development of mycoheterotrophs. By enlarging the spectrum of mycorrhizal fungi and the level of specificity in mycoheterotrophic orchids, this study provides new insights on orchid and mycorrhizal biology in the tropics. © 2009 New Phytologist. |
|
| |
Address |
Dipartimento di Biologia Vegetale dell'Università, Istituto per la Protezione Delle Piante – CNR, Viale Mattioli 25, I-10125 Torino, Italy |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
Cited By :65; Export Date: 7 February 2017 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ webmaster @ |
Serial |
728 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Clair, B.; Jaouen, G.; Beauchene, J.; Fournier, M. |
|
| |
Title |
Mapping radial, tangential and longitudinal shrinkages and relation to tension wood in discs of the tropical tree Symphonia globulifera |
Type |
Journal Article |
| |
Year |
2003 |
Publication |
Holzforschung |
Abbreviated Journal |
Holzforschung |
|
| |
Volume |
57 |
Issue |
6 |
Pages |
665-671 |
|
| |
Keywords |
drying shrinkage; tension wood; Symphonia globulifera L. f. |
|
| |
Abstract |
A method for measuring shrinkage resulting from drying in the three anisotropic directions is developed and tested. Measurements are performed on sawn discs, a technique which simplifies preparation and enables large numbers of measurements. Shrinkage values can be represented as a map of the disc surface. The results indicate that comparisons between shrinkage distribution and tension wood distribution on the discs show a clear relationship and can be measured with relatively high accuracy in reference to the shrinkage map. In the long term, this method could be useful in the timber industry as a means for choosing the direction in which logs are cut depending on their type of wood composition. |
|
| |
Address |
CIRAD ENGREF INRA, UMR Ecol Forets Guyane, Kourou 97379, French Guiana |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
WALTER DE GRUYTER & CO |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0018-3830 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000186257800016 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
243 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Wagner, F.; Rutishauser, E.; Blanc, L.; Herault, B. |
|
| |
Title |
Effects of Plot Size and Census Interval on Descriptors of Forest Structure and Dynamics |
Type |
Journal Article |
| |
Year |
2010 |
Publication |
Biotropica |
Abbreviated Journal |
Biotropica |
|
| |
Volume |
42 |
Issue |
6 |
Pages |
664-671 |
|
| |
Keywords |
Amazonia; biomass fluxes; coefficient of variation; forest permanent plots; turnover rates; WinBUGS |
|
| |
Abstract |
This study was designed to explicitly formulate the effect of census interval and plot size on the variability of descriptors of tropical forest structure (stand density, basal area, aboveground biomass [AGB]) and dynamic (tree growth, mortality and recruitment rates, biomass fluxes). A unique dataset from a broad plot network (37.5 ha) surveyed every 2 yr over a 16-yr period was used to develop and parameterize a new statistical model predicting the coefficients of variation for each forest descriptor. More than 90 percent of the inherent variability of these coefficients was predicted using a simple model including plot size and census interval in a Bayesian modeling framework. All descriptors of forest structure varied by <10 percent for plot sizes 42 ha. Among the descriptors of forest dynamics, AGB loss was the most variable. The number of 6.25 ha plots required to estimate its mean, over a 16-yr period, within a 20 percent error of the mean remains above four. This contrasts with a relative constant flux of biomass entering the plot through tree growth and tree recruitment. Tree growth was remarkably well estimated with <15 percent variability for a 2-yr census in a plot of 2 ha. This study provides an easy method to assess dataset limitations in efforts to estimate descriptors of forest structure and dynamic, which is of primary importance to decipher any clear consequences of global change in tropical forests. |
|
| |
Address |
[Wagner, Fabien; Herault, Bruno] Univ Antilles Guyane, UMR Ecol Forets Guyane, Kourou 97379, French Guiana, Email: bruno.herault@ecofog.gf |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
WILEY-BLACKWELL PUBLISHING, INC |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0006-3606 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000283949700006 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
16 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
McClure, M.; Chouteau, M.; Dejean, A. |
|
| |
Title |
Territorial aggressiveness on the arboreal ant Azteca alfari by Camponotus blandus in French Guiana due to behavioural constraints |
Type |
Journal Article |
| |
Year |
2008 |
Publication |
Comptes Rendus Biologies |
Abbreviated Journal |
C. R. Biol. |
|
| |
Volume |
331 |
Issue |
9 |
Pages |
663-667 |
|
| |
Keywords |
Azteca alfari (Dolichoderinae); Camponotus blandus (Formicinae); foraging; rhythm of activity; territorial aggressiveness |
|
| |
Abstract |
This study reports new information on interactions between two sympatric ant species, the plant-ant Azteca alfari (Dolichoderinae) living in association with the myrmecophyte Cecropia obtusa (Cecropiaceae) and Camponotus blandus (Formicinae), a ground-nesting, arboreal-foraging species. Workers of A. alfari forage only on the foliage and the tipper parts of the trunk of their host Cecropia, while C. blandus nests in the ground but frequently forages and patrols pioneer tree foliage, including Cecropia. The activity pattern of A. alfari and the number of C. blandus on Cecropia obtusa was monitored hourly during a two-day period in a disturbed area in French Guiana. The maximum activity of C. blandus occurred between 8:30 and 12:30, at which time A. alfari had retreated within the domatia and were least present on the trunks. Even though aggressive confrontations were observed, C. blandus workers often initiate confrontations but do not prey on A. alfari nor exploit food bodies produced by Cecropia, the principal food source of A. alfari. Hence hostility appears to be the result of territoriality. Differences in their foraging rhythms are proposed as promoting resource and territory partitioning in this ant assemblage. |
|
| |
Address |
[McClure, Melanie] Concordia Univ, Dept Biol, Montreal, PQ H4B 1R6, Canada, Email: m_mcclur@alcor.concordia.ca |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1631-0691 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000259290200004 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
130 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Fang, C.H.; Clair, B.; Gril, J.; Almeras, T. |
|
| |
Title |
Transverse shrinkage in G-fibers as a function of cell wall layering and growth strain |
Type |
Journal Article |
| |
Year |
2007 |
Publication |
Wood Science and Technology |
Abbreviated Journal |
Wood Sci. Technol. |
|
| |
Volume |
41 |
Issue |
8 |
Pages |
659-671 |
|
| |
Keywords |
|
|
| |
Abstract |
Transverse drying shrinkage was measured at microscopic and mesoscopic levels in poplar wood characterised by an increasing growth strain (GS), from normal to tension wood. Results show that: (a) the drying shrinkage, measured as a relative thickness decrease, was significantly higher for G-layer (GL) than for the other layers (OL), GL shrinkage was not significantly correlated with GS, and OL shrinkage was negatively correlated with GS. (b) In gelatinous fibre (G-fibre), lumen size increased during drying and this increase was positively related with GS, but in normal wood fibre, lumen size decreased during drying. These findings suggest that GL shrank outwards (i.e., its internal perimeter increases), so that its shrinkage weakly affected the total cell shrinkage and the mesoscopic shrinkage was controlled by the OL shrinkage which shrank inwards (i.e., its external perimeter decreases). (c) Measurements done on 7 x 7 mm(2) thin sections evidenced a negative correlation between transverse shrinkage and GS, significant in T direction but weak in R direction. These observations at both levels allow to discuss the contribution of GL to the mesoscopic shrinkage of tension wood. |
|
| |
Address |
Univ Montpellier 2, Lab Mech & Gene Civil, F-34095 Montpellier, France, Email: fang1979@gmail.com |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
SPRINGER |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0043-7719 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000250381500003 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
155 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Schwalm, C.R.; Williams, C.A.; Schaefer, K.; Arneth, A.; Bonal, D.; Buchmann, N.; Chen, J.Q.; Law, B.E.; Lindroth, A.; Luyssaert, S.; Reichstein, M.; Richardson, A.D. |
|
| |
Title |
Assimilation exceeds respiration sensitivity to drought: A FLUXNET synthesis |
Type |
Journal Article |
| |
Year |
2010 |
Publication |
Global Change Biology |
Abbreviated Journal |
Glob. Change Biol. |
|
| |
Volume |
16 |
Issue |
2 |
Pages |
657-670 |
|
| |
Keywords |
biome; carbon cycling; drought; eddy covariance; evaporative fraction; FLUXNET; synthesis |
|
| |
Abstract |
The intensification of the hydrological cycle, with an observed and modeled increase in drought incidence and severity, underscores the need to quantify drought effects on carbon cycling and the terrestrial sink. FLUXNET, a global network of eddy covariance towers, provides dense data streams of meteorological data, and through flux partitioning and gap filling algorithms, estimates of net ecosystem productivity (F-NEP), gross ecosystem productivity (P), and ecosystem respiration (R). We analyzed the functional relationship of these three carbon fluxes relative to evaporative fraction (EF), an index of drought and site water status, using monthly data records from 238 micrometeorological tower sites distributed globally across 11 biomes. The analysis was based on relative anomalies of both EF and carbon fluxes and focused on drought episodes by biome and climatic season. Globally P was approximate to 50% more sensitive to a drought event than R. Network-wide drought-induced decreases in carbon flux averaged -16.6 and -9.3 g C m-2 month-1 for P and R, i.e., drought events induced a net decline in the terrestrial sink. However, in evergreen forests and wetlands drought was coincident with an increase in P or R during parts of the growing season. The most robust relationships between carbon flux and EF occurred during climatic spring for F-NEP and in climatic summer for P and R. Upscaling flux sensitivities to a global map showed that spatial patterns for all three carbon fluxes were linked to the distribution of croplands. Agricultural areas exhibited the highest sensitivity whereas the tropical region had minimal sensitivity to drought. Combining gridded flux sensitivities with their uncertainties and the spatial grid of FLUXNET revealed that a more robust quantification of carbon flux response to drought requires additional towers in all biomes of Africa and Asia as well as in the cropland, shrubland, savannah, and wetland biomes globally. |
|
| |
Address |
[Schwalm, Christopher R.; Williams, Christopher A.] Clark Univ, Grad Sch Geog, Worcester, MA 01610 USA, Email: cschwalm@clarku.edu |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
WILEY-BLACKWELL PUBLISHING, INC |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1354-1013 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
ISI:000274419400014 |
Approved |
no |
|
| |
Call Number |
EcoFoG @ eric.marcon @ |
Serial |
69 |
|
| Permanent link to this record |
