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154 Titles Match Your Query
Showing 1 through 50 of 154 Next
1. Assessment of the importance of biological nitrogen fixation in the terrestrial ecosytem: Nitrogen fixation rates of Nostoc cyanobacterial mats in the Garwood Valley and at Cape Royds [K053_1986_1987_NZ_1]
Microbes with the nitrogenase enzyme on mosses and soils, particularly the cyanobacteria Nostoc, were examined to investigate the extent and magnitude of the nitrogen fixation process. Sample cores ...


2. BIOGEOCHEMICAL CYCLES [EIC13]
Results of continuous programme of monitoring of the cycling of nutrients in four upland catchments from 1982 onwards.


3. Bermuda Atlantic Time-Series Study (BATS) Zooplankton Census [vims_BATS]   CHILD METADATA
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 ...


4. Bermuda Atlantic Time-Series Study (BATS) Zooplankton Census (OBIS) [OBIS.BATS]   PARENT METADATA
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). ...


5. Biogenic Particle Fluxes Measured Using Sediment Traps during the JGOFS North Atlantic Bloom Experiment (NABE) [JGOFS_NABE_SEDIMENT]
The Joint Global Ocean Flux Study (JGOFS) seeks to understand the processes that control the transfer of carbon and other biologically active elements in the ocean. In addition, ...


6. Biological, physical and chemical parameters in water and microbial mat samples from ponds in the Cape Hallett vicinity and cryoconite holes on the Tucker and Bornmann glaciers [K081_2005_2006_NZ_3]
A series of 10 ponds, located away from the main influences of the penguin colony at Cape Hallett, were investigated for variation in chemistry and microbial mat development. Cores of benthic microbial ...


7. Black Sturgeon Boreal Mixedwood Research Site, Ontario, Canada [Canada_CFS_BlSturgBorealResearc]
The Black Sturgeon Boreal Mixedwood Research Project (BSBMRP) was established in response to the need to build a strong ecological foundation for integrated resource management in boreal mixedwoods. ...


8. 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 ...


9. Physical and biogeochemical dynamics of the subantarctic zone [ASAC_2720]   CHILD METADATA
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, ...


10. Physical, chemical and biological characteristics of soils from the upper Garwood Valley, Ross Sea Region, 2002-2006. [K052_2004_2005_NZ]   PARENT METADATA
These data consist of a number of subsets of soil samples gathered from the upper Garwood Valley in January 2002, January 2003, January 2005 and January 2006. Replicate randomly-located samples of ...


11. Physical, chemical and biological characteristics of soils from the western Wright Vanda (Lake Vanda district), Ross Sea Region, 2006 [K052_2005_2006_NZ]   PARENT METADATA
These data consist of a number of subsets of soil samples gathered from the Wright Valley in January 2006. Replicate randomly-located samples of surface soils to 10 cm depth have been gathered from ...


12. Plum Island Ecosystem LTER site - Parker River Advection-Dispersion Dye Release Study [lterpierhod]
The Plum Island Sound Comparative Ecosystems Research Program is part of the The Land Margin Ecosystems Research Program developed by the National Science Foundation (NSF). LMER was started to help ...


13. Preliminary investigation of thermal biosystem of Mount Rittmann fumaroles (Northern Victoria Land, Antarctica) [Thermal_biosys_MountRittmann]
The biota and environment of fumarolic ground recently discovered near Mount Rittmann are described. Three patches (about 1 m2 each) of the moss Pohlia nutans were found in a minor caldera rim. Cyanophytes, ...


14. 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 ...


15. Profiling hydrocarbons and nutrient distribution and mobility around Pedro Vicente Maldonado Station, Antarctica [MARumt08]
Chemical transport occurs lateral and vertically. This project aims to study mobility and transportation of chemicals in Antarctica. Lateral transport of essential elements in an ecosystem is the ...


16. Nitrogen Deposition onto the United States and Western Europe [global_clim_nitrogen_730_1]
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 ...


17. Global N Cycle: Fluxes and N2O Mixing Ratios Originating from Human Activity [global_n_cycle_797_1]
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 ...


18. Collaborative Research: Importance of heterotrophic and phototrophic N2 fixation in the McMurdo Dry Valleys on local, regional and landscape scales [Dry Valleys Mats Biogeochem USC Component]
During our two field seasons, we surveyed the Taylor Valley and parts of the Victoria Valley (year 1: 12 sites with transects wet to dry; 11 individual sites, 177 samples per parameter) and the Garwood ...


19. Muskeg River Forest Demonstration Area, Fort Liard, Northwest Territories, Canada [Canada_CFS_MuskegRiverForest]
The Muskeg River Forest Demonstration Area was established as a co-operative venture with the local Acho Dene Koe and Band; the Northwest Territories Department of Resources, ...


20. 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 ...


21. Natural spatial subsidies in continental Antarctic soil [K052_2001_2005_NZ_1]   CHILD METADATA
The soils of the McMurdo Dry Valleys are hypothesized to rely on external sources of nutrients (carbon, nitrogen, etc). The importance of these spatial subsidies on productivity and biological diversity ...


22. Northeast Monitoring Program - Ocean Pulse; Ocean Pollution Monitoring; Continental shelf from Cape Hatteras to the Gulf of Maine [NMFS0011]
The Northeast Monitoring Program and the Ocean Pulse data support Ocean Pollution monitoring at approximately 140 stations along the continental shelf from Cape Hatteras to the Gulf of Maine. Files ...


23. Northern Biosphere Observation and Modelling Experiment [CANEMRCCRSNBIOME]
The Northern Biosphere Observation and Modelling Experiment (NBIOME) is a scientific program designed to address key issues and uncertainties in the relationship between terrestrial ecosystems and ...


24. Nutrient transfer from penguin colonies to the vegetation at Cape Hallett: A measurement of the transfer of organic nitrogen in the form of ammonia [K024_2004_2006_NZ_3]
The transfer of nutrients from marine to terrestrial ecosystems are though to be important for vegetation. The transfer rate of organic nitrogen in the form of ammonia from the penguin colonies to ...


25. Parker River Plum Island Sound Estuarine Surface Area and Volume Data [lterpiepis_dims]
The Plum Island Ecosystem was originally called The Plum Island Sound Comparative Ecosystems Research Program and was part of the The Land Margin Ecosystems Research Program developed by the National ...


26. PenP*Product [GLOBEC_087_NETH_003]
In 6 land based mesocosms the effects of eutrophication and stratification on algal species composition and productivity were studied during the period 1994-1998. Results indicate that microzooplankton ...


27. 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 ...


28. Role of dynamics and biological processes on the CO2 balance in the southern Atlantic and Austral Oceans. [JCADM_CDA_DNA_ARGAU_OCEAN]
Title: Role of dynamics and biological processes on the CO2 balance in the southern Atlantic and Austral Oceans: A biological approximation to the different trophic regimes and phytoplankton communities. ...


29. 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 ...


30. Samples collected for HPLC pigments, microscopy and flow cytometry for the SAZ-SENSE project [ASAC_2720_filtration]   PARENT METADATA
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 ...


31. Sea level rise scenarios from NASA SRTM datasets [SLRS_KCL]
This is an inundation analysis based on the CSI-corrected 90m SRTM V3 data available here coupled with the coastlines and water body dataset derived from the NASA SRTM Water Body dataset. The water ...


32. Shifts in Carbon Flux Between Plants and Soil Microorganisms [USDA0283]
The objective of this research is to quantify the flux of C and N in the plant-soil system, and to determine if increases in atmospheric CO2 alter the cycling of C and N within the soil. Forest tress ...


33. Size Fractionated Chlorophyll-a, Primary Productivity and Nutrients off the West Coast of Vancouver Island [GLOBEC_031_CAN_008]
On the West Coast of Vancouver Island, physical flow features directly impact both primary and secondary producer trophic levels and the coupling between them and the larval fish that prey on them. ...


34. 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.


35. 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 directly or indirectly ...


36. South Dakota Soil Test Results [USDA0130]
The purpose of this dataset is to provide state-wide spatial- and time-dependent analysis of essential soil nutrients. Collection Organization: CSREES - South Dakota State University; Plant Science ...


37. Stable isotope analysis of invertebrate epifauna collected around Casey station, East Antarctica, for the TRENZ program. [ASAC_2948_TRENZ_Stable_Isotopes]   PARENT METADATA
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 ...


38. Studies on Antarctic Pinnepeds [ANTARCTIC_JCADM_DNA_PINNEPEDS]
Research is being undertaken at the Jubany Scientific Station on the biochemical analysis of the southern elephant seal milk and serum proteins during various stages of lactation, post-weaning, and ...


39. Terrascope : Datasets of LANDSAT MSS, TM and ETM+ ortho mosaics for the 1970s, circa 1990 and circa 2000. [TS_KCL]
Terrascope is a Google Earth implementation of the LANDSAT MSS, TM and ETM+ ortho mosaics for the 1970s, circa 1990 and circa 2000. It is designed to allow rapid comparison of LANDSAT imagery between ...


40. The HERB Initiative : Ecohydrology and Regional Biodiversity. [HERB_KCL]
The HERB project in Colombia is a collaborative programme between the Department of Geography, Kings College London, UK, the Universidad del Cauca, the Instituto de Investigacion de Recursos Biologicos ...


41. The adaptation of cyanobacterial mats from the McMurdo Ice Shelf, Mt Discovery and the Alph River system to Antarctic environmental extremes [K081_1990_1991_NZ_1]
The microbial adaptations of the cyanobacterial mats of the ponds of the McMurdo Ice Shelf to the environmental extremes experienced at this location, including changes in temperature and salinity, ...


42. The amount of nitrogen in the biotic and abiotic systems at Cape Bird measured from evaporated water samples and wind blown inputs [K052_1982_1983_NZ_2]
The amount of nitrogen in the biotic (flora and fauna) and abiotic (soils, ice and snow) systems at Cape Bird was determined by taking water from melt streams, snow or ice, acidifying and evaporating ...


43. The development of anaerobic enrichment cultures and measurements of the rates of methanogenesis, the turnover of 14C acetate and the degradation of substrates from sediment samples from Bratina Island [K141_1992_1994_NZ_1]
Life in ponds and tidal lagoons of the McMurdo Ice Shelf is dominated by benthic cyanobacterial mats. Anaerobic conditions occur beneath these productive mats. A study was conducted to investigate ...


44. The effects of increased flow on the distribution of nutrient sources and sinks and the physical, chemical and biological components in the Onyx River ecosystem [K081_1993_1996_NZ_1]
The waters of Lake Vanda, Wright Valley have risen at a rate of 1m per year. The rise was largely attributed to increased flows in its only significant inflow, the Onyx River. The effects of this ...


45. 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 ...


46. The influence of micro-zooplankton on marine productivity [GLOBEC_055_UK_005]   PARENT METADATA
Predatory microzooplankton are important components of planktonic food webs as they provide a link for nutrients to pass up the food chain through their ingestion of small phytoplankton and bacteria ...


47. The legacy model vs the subsidy model to explain soil organic matter in the McMurdo Dry Valleys [K052_2004_2006_NZ_1]   CHILD METADATA
The Dry Valleys of Victoria Land, Antarctica, contain naturally simple ecosystems operating under extreme climatic conditions. Nutrients are limited and are thought to come from external sources from ...


48. The physical and geochemical parameters controlling algal production in Lake Vanda [K081_1980_1981_NZ_1]
The factors controlling algal production in Lake Vanda were investigated experimentally by nutrient bioassays and in situ radiotracer incubations. Photosynthetic profiles were measured through the ...


49. The presence and extent of interstitial meiofauna in sandy beaches and stream and coastal water sampling to determine the nutrient input to the sea from penguin colonies [K014_1974_1975_NZ_2]
The presence and extent of the interstitial meiofauna that developed in the sandy beach when the push-ice had melted or rafted out was investigated. The timing of melting was late and only a short ...


50. The rate of exchange of nutrients between the microbial mats and the overlying water column in Lake Hoare [K081_2000_2001_NZ_2]
Benthic chambers were deployed at 10m depth in Lake Hoare to determine the rate of exchange of nutrients between the microbial mats and the overlying water column. These comprised 5 each of opaque ...


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