| 3. |
- Sabatini, F. M., et al.
(författare)
-
sPlotOpen - An environmentally balanced, open-access, global dataset of vegetation plots
- 2021
-
Ingår i: Global Ecology and Biogeography. - : Wiley. - 1466-822X .- 1466-8238.
-
Tidskriftsartikel (refereegranskat)abstract
- Motivation Assessing biodiversity status and trends in plant communities is critical for understanding, quantifying and predicting the effects of global change on ecosystems. Vegetation plots record the occurrence or abundance of all plant species co-occurring within delimited local areas. This allows species absences to be inferred, information seldom provided by existing global plant datasets. Although many vegetation plots have been recorded, most are not available to the global research community. A recent initiative, called 'sPlot', compiled the first global vegetation plot database, and continues to grow and curate it. The sPlot database, however, is extremely unbalanced spatially and environmentally, and is not open-access. Here, we address both these issues by (a) resampling the vegetation plots using several environmental variables as sampling strata and (b) securing permission from data holders of 105 local-to-regional datasets to openly release data. We thus present sPlotOpen, the largest open-access dataset of vegetation plots ever released. sPlotOpen can be used to explore global diversity at the plant community level, as ground truth data in remote sensing applications, or as a baseline for biodiversity monitoring. Main types of variable contained Vegetation plots (n = 95,104) recording cover or abundance of naturally co-occurring vascular plant species within delimited areas. sPlotOpen contains three partially overlapping resampled datasets (c. 50,000 plots each), to be used as replicates in global analyses. Besides geographical location, date, plot size, biome, elevation, slope, aspect, vegetation type, naturalness, coverage of various vegetation layers, and source dataset, plot-level data also include community-weighted means and variances of 18 plant functional traits from the TRY Plant Trait Database. Spatial location and grain Global, 0.01-40,000 m(2). Time period and grain 1888-2015, recording dates. Major taxa and level of measurement 42,677 vascular plant taxa, plot-level records. Software format Three main matrices (.csv), relationally linked.
|
|
| 4. |
- Hennekens, C. H., et al.
(författare)
-
The CHARM program: study design leads to findings of clinical and public health importance
- 2007
-
Ingår i: J Cardiovasc Pharmacol Ther. - : SAGE Publications. - 1074-2484. ; 12:2, s. 124-6
-
Tidskriftsartikel (refereegranskat)abstract
- In large-scale randomized trials and their meta-analyses, beta-adrenergic blockers and angiotensin-converting enzyme inhibitors provide statistically significant and clinically important additive mortality and morbidity benefits in the treatment of heart failure. The CHARM trials were designed to test whether the angiotensin-receptor blocker candesartan would provide statistically significant and clinically important additive mortality and morbidity benefits to patients with heart failure as an alternative or in addition to angiotensin-converting enzyme inhibitors. CHARM demonstrated that an angiotensin-receptor blocker at a proven dose is an effective and safe therapy as an alternative or in addition to angiotensin-converting enzyme inhibitors in patients with heart failure, 55% of whom were receiving beta-adrenergic blockers. These benefits include reductions in cardiovascular mortality rate as well as in hospitalization for heart failure. Such patients have a 50% mortality rate at 5 years, and heart failure is the leading cause of hospitalization for patients 65 years of age and older.
|
|
