LTER sites
|
|
AND (6),
ARC (314), BES,
BNZ (179),
CAP (55), CCE, CDR,
CWT (1),
FCE (116), GCE, HBR,
HFR (130), JRN,
KBS (50),
KNZ (70), LNO,
LUQ (89),
MCM (177),
MCR (45),
NIN (10),
NTL (190),
NWT (7), PAL, PIE, SBC,
SEV (26), SGS,
VCR (17) |
animals
|
|
fauna (7),
macrofauna (1),
invertebrates (56),
corals (8),
aquatic invertebrates (5),
insects (24), microarthropods,
crustaceans (6),
larvae (3),
macroinvertebrates (11),
mollusks (1),
nematodes (25),
vertebrates (72),
amphibians (5),
birds (11),
fishes (32),
mammals (12),
humans (20),
reptiles (8) |
atmospheric properties
|
|
air quality (3),
atmospheric pressure (4),
dew point (2),
vapor pressure (6),
climate (1311),
microclimate (3),
precipitation (1467),
weather (118),
wind (165) |
biogeochemical
and physical processes |
|
frost (58),
tides (3),
decomposition (41),
mineralization (18),
nutrient cycling (3),
atmospheric processes (2),
eddy covariance (6),
evapotranspiration (2),
precipitation (1467),
geological processes (1),
stream discharge (34),
irrigation (3),
streamflow (142),
burning (12), dispersion,
scattering (5),
ocean currents (4),
fertilization (10),
harvesting (8),
landscape change (8),
recovery (18),
restoration (2) |
biological
processes and events |
|
flowering (7),
recruitment (9),
seedling establishment (4),
photosynthesis (33),
respiration (39),
transpiration (6),
metabolism (19),
succession (244),
translocation (2),
carbon cycling (5),
evolution (2),
litterfall (24),
microbial activity (2),
production (299),
primary production (267),
species interactions (3),
life history (3),
colonization (2),
dispersal (5),
germination (5),
growth (68),
habitat selection (3),
incubation (15),
mortality (5),
regeneration (29),
reproduction (11),
survival (6),
disease (3),
disturbance (280) |
biological
substances |
|
detritus (14),
amino acids (4),
charcoal (3),
chlorophyll (105),
inorganic nutrients (168),
nutrients (234),
phaeopigments (11),
wood (187),
litter (91),
woody debris (18) |
chemical properties
|
|
acidic (42),
alkalinity (32),
carbon to nitrogen ratio (15),
nitrogen content (6),
percent carbon (6),
percent nitrogen (4),
ph (2806), redox,
salinity (40),
total organic carbon (11)
|
disturbances
|
|
timber harvest (16), droughts,
fires (46),
floods (3),
hurricanes (12),
lightning (1),
storms (6) |
ecosystem
population and community properties
|
|
allometry (1),
canopy cover (10),
leaf area (17),
normalized vegetation index (11),
plant cover (2517),
biomass (1741),
nutrient cycles (3), disturbance
patterns, fire severity,
hurricane damage (3),
abundance (6805),
community composition (21),
diversity (319),
respiration rates (4),
trophic structure (4),
standing crop (9) |
ecosystems
|
|
deserts (37), dunes,
forests (28),
grasslands (32),
tundra (102),
watersheds (27),
aquatic ecosystems (25),
oceans (2),
estuaries (3),
lakes (1035),
rivers (19),
streams (19),
wetlands (21) |
elements and
compounds |
|
aluminum (4),
calcium (184),
bicarbonate (9),
carbon (226),
carbon dioxide (35),
dissolved inorganic carbon (14),
dissolved organic carbon (50),
methane (9),
organic carbon (64),
soil carbon (18),
chloride (181),
chromium (3),
copper (3),
fluoride (4),
iron (65),
lead (3),
magnesium (24),
manganese (11),
nitrogen (602),
oxygen (35),
phosphorus (141),
potassium (24),
silicon (1),
sodium (17),
sulfur (163),
fertilizer (13),
ions (592),
organic matter (172),
water (1835),
gases (3),
isotopes (14),
pollution (5),
sediments (16) |
habitats and
substrates |
| seawater,
atmosphere (10),
basins (5),
buildings (2),
canopies (7),
forest floor (1),
freshwater (67),
groundwater (14),
hillslopes (1),
hyporheic zone (1),
ice (433),
roads (8),
sand (47),
snow (114),
soil (621),
water column (23) |
methods and
activities |
|
cores (9),
surface elevation table (3),
eddy covariance (6), chronosequences,
dataloggers (2),
dendrometer (4),
litterbags (1),
lysimeter (137),
moorings (6),
permanent plots (10),
pitfall traps (1),
snowfences (9),
time domain reflectometry (2),
tracers,
transects (34),
models (9),
geographic information systems (85),
mapping (10),
digital elevation model (9),
global positioning system (7),
imagery (16),
surveys (29),
remote sensing (46),
modeling (30),
long term monitoring (18),
trapping (180), electric exclusion,
mass balance (8) |
organizational
units |
|
habitats (15),
communities (33),
community structure (10),
food webs (9),
consumers (26),
predators (1),
populations (326),
species (446), endangered species,
invasive species (13) |
other organisms
|
|
fungi (23),
humans (20),
lichens (46),
microbes (5),
plankton (50),
algae (44),
seston (5) |
physical and
spatial properties |
| stream
order,
water content (10),
precipitation (1467),
snow (114),
porosity (1),
electrical conductivity (37),
fluorescence (15),
irradiance (8),
reflectance (14),
temperature (872),
radiation (100),
soil bulk density (5),
soil moisture (163),
soil respiration (10),
soil texture (3),
conductivity (101),
turbidity (19),
stage height (22),
lake level (8),
water quality (28),
suspended solids (1), decay
rates,
water balance (2),
carbon fluxes (5),
gas flux (5),
heat flux (6),
aquatic (71),
benthic (21),
estuarine (38),
marine (46),
bathymetry (11),
elevation (67),
hyporheic (2),
land cover (21),
land use (88),
riparian (11),
spatial variability (19),
terrestrial (842),
urban (1043),
hydrography (6) |
plants
|
|
ferns (2),
flowers (2),
grasses (59),
herbs (10),
leaves (28),
mosses (42),
periphyton (30),
pollen (11),
roots (8),
seedlings (23),
seeds (8),
shrubs (81),
trees (64),
vegetation (367),
crops (2),
canopy gaps (1),
leaf litter (6),
stems (738) |
scientific
disciplines |
|
demography (6),
geology (1),
history (12),
hydrology (64),
limnology (58),
meteorology (61),
climatology (8),
climate change (14),
oceanography (5),
agriculture (15),
biogeochemistry (1531),
dendrochronology (5),
genetics (3),
physiology (14),
taxonomy (3),
phenology (26),
chemistry (1594),
forest ecology (2),
paleoecology (13),
plant ecology (7),
stream ecology (20),
trophic dynamics (5),
population dynamics (18),
community dynamics (33),
biodiversity (30) |
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