Thumbnail Icon [Parameters: Topic='BIOSPHERE', Term='ECOLOGICAL DYNAMICS', Variable_Level_1='ECOSYSTEM FUNCTIONS', Variable_Level_2='NUTRIENT CYCLING']


Refine by Category
 
Refine by Full text

 

151 Titles Match Your Query
Showing 1 through 50 of 151 Next
1. Albatross Bay Nutrient Data 1992 [CSIRO_albatross_nutrient]
One year of sampling was undertaken in 1992 at four sites in Albatross Bay, Gulf of Carpentaria, measuring nitrate and nitrite, phosphate and silicate levels in the water column. This ...


2. Effects of Prescribed Fire on Sediment and Nutrient Loads in Southeastern U.S. Forests [USDA_effectsofprescribedfire]
We used the nutrient cycling model NuCM (Nutrient Cycling Model) as our platform for predicting stream and soil nutrient response after forest management with prescribed fire. Study sites were located ...


3. Riparian Litter Inputs to Streams in the Central Oregon Coast Range - Data [USGS_FRESC-0298_RiparianLitterInputs]
ABSTRACT: This data set consists of twenty five spreadsheets that cover twelve months of "sorting" data on litter collected in Oregon Coast Range riparian forests, total carbon and nitrogen concentrations ...


4. Linking Land, Air, and Water Management in the Southern Everglades and Coastal Zone to Water Quality and Ecosystem Restoration [USGS_SOFIA_LinkingLandAirManagement]   CHILD DIFs
The approaches used will be extensions of previous efforts by the lead investigators, whereby we will enhance our abilities to address land management and ecosystem restoration questions. Major changes ...


5. Bermuda Atlantic Time-Series Study (BATS) Zooplankton Census (OBIS) [OBIS.BATS]   PARENT DIF
Abundance and taxonomic analysis of major zooplankton and micronekton groups collected monthly, in both the day and night, from 1994 to 2000 in the Sargasso Sea (31 deg 40 min N, 64 deg 10 min W). ...


6. Samples collected for HPLC pigments, microscopy and flow cytometry for the SAZ-SENSE project [ASAC_2720_filtration]   PARENT DIF
Metadata record for data from ASAC Project 2720 See the link below for public details on this project. The overall objective is to characterize Southern Ocean marine ecosystems, their influence on ...


7. The role of the Southern Ocean in the carbon cycle [ASAC_133]
Metadata record for data from ASAC Project 133 See the link below for public details on this project. Surface carbon dioxide (CO2) observations are integral to understanding the role of the Southern ...


8. A Study of the Nitrogen-fixing Microbiota of Macquarie Island Plant Communities [ASAC_194]
The nitrogen fixing biota of Macquarie Island are dominated by cyanobacteria growing epiphytically or symbiotically with plants or lichens. Highest rates of acetylene reduction (N-fixation) were found ...


9. Cold adaptation and functionality of the Antarctic Coastal Benthic Zones [ASAC_1165]
Antarctic sediments and sea-ice are important regulators in global biogeochemical and atmospheric cycles. These ecosystems contain a diverse range of bacteria whose biogeochemical roles remains largely ...


10. Exopolysaccharides from Antarctic bacteria [ASAC_2348]
Exopolysaccharide (EPS) is complex sugar made by many microbes in the Antarctic marine environment. This project seeks to understand the ecological role of microbial EPS in the Southern Ocean, where ...


11. Geochemical and biological linkages in glacier ecosystems [ASAC_2750]
Metadata record for data from ASAC Project 2750 See the link below for public details on this project. Glaciers are not frozen rivers, but another aquatic ecosystem in the cryosphere. Most life on ...


12. Latitudinal Gradient Project - Australian contributions [LGP]
This record relates to the Australian component of the Latitudinal Gradient Project. The LGP is largely a New Zealand, US and Italian venture, but a small contribution has been made by Australian ...


13. Physical and biogeochemical dynamics of the subantarctic zone [ASAC_2720]   CHILD DIFs
This metadata record is a 'Parent' metadata record for ASAC project 2720. See the link for the related 'Child' metadata records. The overall objective is to characterise Southern Ocean marine ecosystems, ...


14. Stable isotope analysis of invertebrate epifauna collected around Casey station, East Antarctica, for the TRENZ program. [ASAC_2948_TRENZ_Stable_Isotopes]   PARENT DIF
A variety of epifaunal invertebrates were collected from hard substrates and soft sediment habitats at various sites in the Windmill Islands near Casey station in East Antarctica. Collected fauna ...


15. Leaf CNP and isotopes 13C 15N and 18O from ITEX Cross Site Comparison [leaf_cnp_and_isotopes_13c__15n_and_18o_from_itex_cross_site_comparison]
Study sites: Toolik Lake Field Station Alaska, USA 68.63 N, 149.57 W; Atqasuk, Alaska USA 70.45 N, 157.40 W; Barrow, Alaska, USA 71.30 N, 156.67 W; Latnjajaure, Sweden 68.35 N, 18.50 E; Falls Creek, ...


16. Soil Nitrogen Availability_Ion Exchange Membranes [soil_nitrogen_availability_ion_exchange_membranes]
Estimates of soil nitrogen availability between June 28 and August 9, 2011 in three contrasting white spruce habitats near the Arctic treeline: riverside terrace, forest and treeline.


17. White Spruce Needle Gas Exchange, Nitrogen Concentration, 13C and 15N [white_spruce_needle_gas_exchange_nitrogen_concentration_13c_and_15n]
Weekly measurements of light-saturated net photosynthesis, dark respiration, nitrogen concentration, 13C and 15N of two-year-old white spruce needles in three contrasting habitats during the 2010 ...


18. DISCOVERY-FLEXICON: FLEXIbility and CONstraints in life histories [GB-NERC-BAS-PDC-00516]
FLEXICON is investigating the life-cycles of some of the world''s most durable and abundant organisms that are vital to the Earth''s systems. Marine organism in the Southern Ocean must endure one ...


19. Chesapeake Bay Program [epa_cbprogram]   CHILD DIFs
EPAs Chesapeake Bay Program Office coordinates the goals of the Chesapeake Bay Program (CBP) with the other offices located in EPA's regional office in Philadelphia, Pennsylvania. The CBP is a unique ...


20. The fate of primary production in Antarctic sea ice: the role of metazoan grazers. [ASAC_1328]
Crustaceans are an important component of the Antarctic marine ecosystem. Large numbers live in or close to the sea-ice cover, using it as a refuge from predation and a source of food. However, the ...


21. Bermuda Atlantic Time-Series Study (BATS) Zooplankton Census [vims_BATS]   CHILD DIFs
This study of plankton diversity at the Bermuda Atlantic Time-series Study (BATS) site is part of an initiative to create an online atlas of marine diversity, the Ocean Biogeographic ...


22. Major-Ion, Nutrient, and Trace-Element Concentrations in the Steamboat Creek Basin [WIR_98_4105]
In September 1996, a water-quality study was done by the U.S. Geological Survey, in coordination with the U.S. Forest Service, in headwater streams of Steamboat Creek, a tributary to the North Umpqua ...


23. Modeling Water Quality in the Tualatin River, Oregon, 1991-1997 [WRIR_01_4062]
The calibration of a model of flow, temperature, and water quality in the Tualatin River, Oregon, originally calibrated for the summers of 1991 through 1993, was extended to the summers of 1991 through ...


24. Upper Klamath Lake Basin Nutrient-Loading Study-Assessment of Historic of Flows in the Williamson and Sprague Rivers [WRIR_98_4198]
The Williamson River Basin, located in south-central Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage ...


25. Distribution of Dissolved Pesticides and Other Water Quality Constituents in Small Streams, and their Relation to Land Use, Willamette River Basin, Oregon [WRIR_97_4268]
Water quality samples were collected at sites in 16 randomly selected agricultural and 4 urban subbasins as part of Phase III of the Willamette River Basin Water Quality Study in Oregon during 1996. ...


26. Long-Term Ecological Research (LTER)/CDR018: Plant Competition Under Different Nitrogen Levels at Cedar Creek Natural History Area [LTER_CDR018]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR018 [Summary adapted from the LTER Core Data Set Catalog]: This is the new ...


27. Long-Term Ecological Research (LTER)/CDR019: Tree Competition at Cedar Creek Natural History Area [LTER_CDR019]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR019 [Summary adapted from the LTER Core Data Set Catalog]: This experiment ...


28. Tropical Hydrology : climate and land use impacts from a cloud forest water balance model [THCLUI_KCL]
This database provides information and data from the Tropical Hydrology and Cloud Forests Project. A pan-tropical water balance model was developed and the implications of historic forest loss in ...


29. GLOBAL N CYCLE: FLUXES AND N2O MIXING RATIOS ORIGINATING FROM HUMAN ACTIVITY [global_n_cycle]
Nitrogen is a major nutrient in terrestrial ecosystems and an important catalyst in tropospheric photochemistry. Over the last century human activities have dramatically increased inputs of reactive ...


30. Resource Allocation and Allometry of Plant Growth at Selected Sites in the Arctic: 2003-2005 Growing Seasons [ARCSS164]
This data set consists of seven data files containing measurements from Arctic field sites during the summer months from 5 July 2003 to 5 August 2005 as part of the Land-Atmosphere-Ice Interactions ...


31. NITROGEN DEPOSITION ONTO THE UNITED STATES AND WESTERN EUROPE [global_clim_nitrogen]
This data set contains data for wet and dry nitrogen-species deposition for the United States and Western Europe. Deposition data were acquired directly from monitoring programs in the United States ...


32. Sources, Pathways and Sinks of Organic Matter in Antarctic Terrestrial Ecosystems (MATE) [MATE.NL]
Terrestrial, limnetic and coastal ecosystems in Antarctica are connected by transport (predominantly by melt water) of organic matter and minerals. Temperature increase (either ...


33. Pressure effects On marine prokaryoTES (POTES) [POTES]
The ANR POTES program (Pressure effects On marine prokaryoTES) project concerns the role of marine micro-organisms in the mineralization of particulate (POM) and dissolved (DOM) organic matter and ...


34. Role of eukaryote pico- and nanoplankton in the biogeochemical processes of the deep sea. [Deep_Sea_Protists]
In this project we investigate the distribution and activity of the smallest eukaryotes of the deep sea in order to understand their ecology and contribution to biogeochemical processes. Using fluorescence ...


35. Monitoring and Manipulation of Tundra Response to Climate Change, Arctic LTER, Toolik Lake, Alaska [ARCSS091]
The investigator has undertaken long-term field experiments and monitoring at the Arctic Long Term Ecological Research (LTER) station, Toolik Lake, Alaska, exploring the effects of climate change ...


36. Controls on Carbon Flux in Moist Acidic Versus Nonacidic Tundra, Arctic LTER Data [ARCSS090]
In an effort to understand soil effects on carbon flux from moist acidic tundra versus moist non-acidic tundra, the investigators collected soil respiration, soil temperature, soil moisture, thaw ...


37. Microbial mat development and production variation in relation to physio-chemical variation in 13 ponds that all originated from one greater pond near Bratina Island on the McMurdo Ice Shelf [K081_2005_2006_NZ_1]
Microbial mat development and production varies from pond to pond due to the physio-chemical variation amongst the ponds. To study this variation a series of 13 ponds were selected that had originated ...


38. Hydrologic Margins Research Project, 2004-2008, McMurdo Dry Valleys [B268_hydrol_margins_dvs_proj]
In this field research project, we investigated the soil hydrology, biogeochemistry, and microbial ecology along hydrologic gradients in soils adjacent to streams and lakes in Wright and Taylor Valleys. ...


39. Impacts of climate change on Antarctic vascular plants: warming and UV-B radiation [TAD001]
Our research examined the influence of ultraviolet-B radiation (UV-B) and warming on the performance of Antarctic flowering plants (i.e. Deschampsia antarctica, ...


40. Long-Term Monitoring of Signy Lake Chemistry by BAS 1963-2004 [GB-NERC-BAS-AEDC-00063]
The long term monitoring of water chemistry in Signy Island lakes is unique in polar limnology, in its duration (30+ years), detail, and range of sites. It details seasonal patterns of snow and ice ...


41. Montane Alternative Silvicultural Systems, British Columbia, Canada [Canada_CFS_MontanAlterSilvicult]
Montane forests have a winter snowpack and are found between 700 and 1100 metres in elevation on central Vancouver Island. They contain a large part of the coastal timber harvest ...


42. Factors Affecting the Distribution of Juvenile Salmon in the Gulf of Alaska 2001-2003 [salmon_juv_diet_LTOP_CGOA]
The purpose of this research is to focus National Marine Fisheries Service studies on the GLOBEC region, augment oceanographic measurements and determine what biological and physical factors influence ...


43. Long-Term Ecological Research (LTER)/CDR001: Fenced Microplots (MICRO); Effects of NH4NO3 on Vegetation at Cedar Creek Natural History Area [LTER_CDR001]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR001 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...


44. Long-Term Ecological Research (LTER)/CDR003: Effects of Nutrients on Vegetation at Cedar Creek Natural History Area [LTER_CDR003]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR003 [Summary adapted from the LTER Core Data Set Catalog]: This experiment ...


45. Long-Term Ecological Research (LTER)/CDR004: Effects of NH4NO3 on Small Mammal Grids (MAMML) at Cedar Creek Natural History Area [LTER_CDR004]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR004 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...


46. Long-Term Ecological Research (LTER)/CDR005: Effects of NH4NO3 on Small Mammal Grids, Disked (MAMML) at Cedar Creek Natural History Area [LTER_CDR005]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR005 [Summary adapted from the LTER Core Data Set Catalog]: This experiment ...


47. Long-Term Ecological Research (LTER)/CDR006: Effects of NH4NO3 on Small Mammal Grids, Control (MAMML) at Cedar Creek Natural History Area [LTER_CDR006]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR006 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...


48. Long-Term Ecological Research (LTER)/CDR007: Effects of NH4NO3 on Vegetation in Unfenced Microplots (UNFMC) at Cedar Creek [LTER_CDR007]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR007 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...


49. Long-Term Ecological Research (LTER)/CDR008: Effects of Fires on Old Field Vegetation (BRNMC) at Cedar Creek Natural History Area [LTER_CDR008]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR008 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...


50. Long-Term Ecological Research (LTER)/CDR009: Blowdown Survey (BLDWN) at Cedar Creek Natural History Area [LTER_CDR009]
LTER - Long-Term Ecological Research Program/Cedar Creek Natural History Area (CDR) LTER/CDR009 [Summary adapted from the LTER Core Data Set Catalog]: The purpose of ...


Showing 1 through 50 of 151 Next
Click here for a static view of records.

Link to Web Site