Éditeur(s) : World Bank World Bank ( Washington, D.C. )
Résumé : (Statement of Responsibility) World Bank.
Title from caption.
Jamaica

175175227

Éditeur(s) : [s.n.] [s.n.] ( [Washington ? )
Colombia
Colombia

000131449
29383202
AAP7475

Éditeur(s) : Gobierno de Nicaragua Banco Mundial (World Bank) Gobierno de Nicaragua ( Nicaragua ) Banco Mundial (World Bank)
Résumé : Typescript; photocopy.
(Statement of Responsibility) Gobierno de Nicaragua, Banco Mundial.
Nicaragua
Nicaragua
Nicaragua

437034358

Éditeur(s) : [s.n.] [s.n.] ( Washington )
Résumé : (Statement of Responsibility) headed by Lauchlin Currie and sponsored by the International Bank for Reconstruction and Development in collaboration with the Government of Colombia.
"IBRD special publication. Sales number: IBRD. 1950.2."
Colombia
Colombia

001468748
28523929
AGY0427

Éditeur(s) : [s.n.] [s.n.] ( Washington )
Résumé : (Statement of Responsibility) report of a mission headed by Lauchlin Currie and sponsored by the International Bank for Reconstruction and Development, in collaboration with the Government of Columbia.
"IBRD special publication. Sales number: IBRD. 1950.1."
Colombia
Colombia

000108327
29383199
AAM3936

Éditeur(s) : HAL CCSD Wiley Open Access
Résumé : Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species' threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that support computation of a range of biodiversity indicators, is necessary to enable better understanding of historical declines and to project - and avert - future declines. We describe and assess a new database of more than 1.6 million samples from 78 countries representing over 28,000 species, collated from existing spatial comparisons of local-scale biodiversity exposed to different intensities and types of anthropogenic pressures, from terrestrial sites around the world. The database contains measurements taken in 208 (of 814) ecoregions, 13 (of 14) biomes, 25 (of 35) biodiversity hotspots and 16 (of 17) megadiverse countries. The database contains more than 1% of the total number of all species described, and more than 1% of the described species within many taxonomic groups - including flowering plants, gymnosperms, birds, mammals, reptiles, amphibians, beetles, lepidopterans and hymenopterans. The dataset, which is still being added to, is therefore already considerably larger and more representative than those used by previous quantitative models of biodiversity trends and responses. The database is being assembled as part of the PREDICTS project (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems - ). We make site-level summary data available alongside this article. The full database will be publicly available in 2015.
ISSN: 2045-7758

hal-01204216
https://hal.archives-ouvertes.fr/hal-01204216
DOI : 10.1002/ece3.1303
PRODINRA : 280886

Éditeur(s) : HAL CCSD
Résumé : Atmospheric carbon dioxide records indicate that the land surface has acted as a strong global carbon sink over recent decades, with a substantial fraction of this sink probably located in the tropics, particularly in the Amazon. Nevertheless, it is unclear how the terrestrial carbon sink will evolve as climate and atmospheric composition continue to change. Here we analyse the historical evolution of the biomass dynamics of the Amazon rainforest over three decades using a distributed network of 321 plots. While this analysis confirms that Amazon forests have acted as a long-term net biomass sink, we find a long-term decreasing trend of carbon accumulation. Rates of net increase in above-ground biomass declined by one-third during the past decade compared to the 1990s. This is a consequence of growth rate increases levelling off recently, while biomass mortality persistently increased throughout, leading to a shortening of carbon residence times. Potential drivers for the mortality increase include greater climate variability, and feedbacks of faster growth on mortality, resulting in shortened tree longevity. The observed decline of the Amazon sink diverges markedly from the recent increase in terrestrial carbon uptake at the global scale, and is contrary to expectations based on models.
ISSN: 1476-4687

hal-01204223
https://hal.archives-ouvertes.fr/hal-01204223
DOI : 10.1038/nature14283
PRODINRA : 294797
PUBMED : 25788097