|
Number of species catalogued in a central database as of 2011
|
Biosphere |
~1.2e6 |
species |
109316 |
Mora C, Tittensor DP... |
|
Relative number and biomass of microbial species at 0–6 inches (0–15 cm) depth of soil
|
Various |
Table - link |
N/A |
106622 |
James J. Hoorman & Rafiq... |
|
Biomass of leaf litter
|
Biosphere |
122 |
Gt |
111603 |
Landenmark HK, Forgan DH... |
|
Number of cells in one gram of soil
|
prokaryote |
≤1e10 |
cells/gram of soil |
110152 |
Torsvik V, Øvreås L.... |
|
Number of species other than itself that a given species interacts with in a food web
|
Generic |
3-5 |
species |
103776 |
May RM. How Many Species... |
|
Composition of Earth's dry atmosphere
|
Biosphere |
Table - link |
N/A |
103496 |
John Harte, Consider... |
|
Carbon fixation and solar energy budget-carbon balance computed as CO2
|
Generic |
Table - link |
N/A |
102721 |
Altman, P.L., and Dittmer... |
|
Percent of animal species that live in the sea
|
Biosphere |
20 |
% |
103928 |
May RM. How Many Species... |
|
Ratio between number of species of birds and mammals in tropical regions and temperate regions
|
Biosphere |
2 |
Unitless |
103929 |
May RM. How Many Species... |
|
Estimated number of beetle species that are hosted by one species of tropical tree
|
Biosphere |
160 |
Species |
103930 |
May RM. How Many Species... |
|
Estimated total number of species of organisms
|
Biosphere |
3e6-5e6 |
Species |
103931 |
May RM. How Many Species... |
|
Percent of arthropod species that are beetles
|
Unspecified |
40 |
% |
103932 |
May RM. How Many Species... |
|
Number of described species of organisms
|
Biosphere |
2e+6 |
Unitless |
103927 |
May RM. How Many Species... |
|
Number of species in different animal phyla classified according to habitat
|
Various |
Table - link |
N/A |
101843 |
May RM. How Many Species... |
|
Percent of land covered by snow
|
Biosphere |
20 |
hours |
100543 |
http://hypertextbook... |
|
Annual amount of carbon fixed from carbon dioxide into organic form by land plants
|
Biosphere |
45-60 |
Pg/yr |
101682 |
Kiang et al. Spectral... |
|
Annual amount of carbon fixed from carbon dioxide into organic form by ocean phytoplankton
|
Biosphere |
45-60 |
Pg/yr |
101684 |
Kiang et al. Spectral... |
|
percent of atmospheric carbon fixed by each land plants and phytoplankton per year
|
Biosphere |
6-8 |
percent per year |
101685 |
Kiang et al. Spectral... |
|
light compensation point (photon flux needed for survival) for green plants
|
Biosphere |
3 |
µmol/m^2/sec |
101686 |
Kiang et al. Spectral... |
|
light compensation point (photon flux needed for survival) for red macro-algae
|
Biosphere |
0.01 |
μmol/m^2/sec |
101687 |
Kiang et al. Spectral... |