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51. Arctic Pollen Data [Canada_GSC_ArcticPollen]
This collection consists of some pollen slides collected from the Arctic.This data is used as a reference for comparison to data acquired through snow and ice core samples in the Arctic.


52. Arctic Transitions in the Land-Atmosphere System (ATLAS) Data at UCAR/JOSS/NOAA/CODIAC [ATLAS_UCAR_JOSS_NOAA_CODIAC]
The Land-Atmosphere-Ice Interactions (LAII) Arctic Transitions in the Land-Atmosphere System (ATLAS) program is designed as an interdisciplinary multi-year project with many investigators and varied ...


53. Arctic Tundra Flux Study in the Kuparuk River Basin (Alaska), 1994-1996 [fluxnet_alaska_629_1]
CO2 and water vapor fluxes and ecosystem characteristics were measured at 24 sites along a 317-km transect from the Arctic coast to the latitudinal treeline in Alaska during the growing seasons of ...


54. Arctic benthic invertebrate collection of the Zoological Institute of the Russian Academy of Science [ArcOD_2006B3]   PARENT METADATA
This dataset describes the Arctic component of the marine invertebrate collection of the Zoological Institute RAN (in Russian; in English: ZIN RAS Russian Academy of Sciences), one of the largest ...


55. Arctic soft-sediment macrobenthos (EUROBIS) [Eurobis_533]
Samples of the macrobenthic fauna of soft sediments were collected from around Svalbard during the 1991 Arctic EPOS cruise of RVPolarstern. Although faunal variability could be related to sediment ...


56. Area - population relationships for Adelie Penguin colonies at Mawson. [ASAC_1219_AAT_APen_M_Area]   PARENT METADATA
The relationship between colony area and population density of Adelie Penguins Pygoscelis adeliae was examined to determine whether colony area, measured from aerial or satellite imagery, could be ...


57. Area and Carbon Content of Sphagnum Since Last Glacial Maximum, in CDIAC/Trends Online [CDIAC_TRENDS_GAJEWSKI]
This data set consists of area and total carbon content estimated at 2000-year intervals, from the distribution and abundance of Sphagnum spores in North America and Eurasia over the past 21,000 years ...


58. Argentina GlobeSar2 Radarsat Data [Canada_CCRS_Globesar2Argentina]
Building on the success of previous radar data programs, GlobeSAR-2 is a four-year geomatics technology transfer program focused on the use of RADARSAT for improved natural resource management in ...


59. Argonne Cutting Methods NH-25 Data Base [USDA0134]
To determine silviculture response to various even- and uneven-aged cutting treatments in northern hardwood forests. Also, to measure economic consequences of these treatments. Data include individual ...


60. Arkansas Biodiversity: The Vascular Flora [ARKANSAS_VASCULAR_FLORA]
To provide an overview of vascular plant distribution in Arkansas. Provides vascular plant distribution data for Arkansas counties. One may browse diversity/distribution maps for the Arkansas flora ...


61. Aroonstook Maine National Wildlife Refuge Boundary Data [USFWS_CSDS_arobnd]   PARENT METADATA
This dataset contains boundary layers for the Aroostook National Wildlife Refuge in Maine. National Wildlife Refuges are federal lands managed by the U.S. Fish and Wildlife Service (USFWS). The primary ...


62. Arthropod Checklist Authority files [Bishop_HBS_artchecklist]
The Hawaii Biological Survey's Terrestrial Arthropod Checklist is an authority file of terrestrial arthropod names for the Hawaiian Islands. Island ...


63. Arthropod Type Specimen Database [Bishop_HBS_ent]
The Gressitt Center Arthropod Types Database contains data for almost 16,000 type specimens. The type numbers are occupied by primary types except for ...


64. Arthropods of La Selva (ALAS) Database [EC_ALAS]
The Arthropods of La Selva Database (ALAS) contains approximately 127,000 Specimen records for approximately 8000 species of arthropods, illustrated by more than 1300 images. The collection data ...


65. Ashland Wildlife Research Area Bird Point Counts [USDA0135]
The purpose of this dataset is to monitor annual trends in abundance of forest birds. The data include bird detections at 96 points and are analyzed to monitor population trends. Collection Organization: ...


66. Ashland Wildlife Research Area Grouse Survey [USDA0136]
To determine density of drumming male grouse on study area. Data are currently used by FS scientists, University of Missouri and the Missouri Department of Conservation. Collection Organization: ...


67. Aspects of the Life History and Foraging Ecology of the Endangered Akiapolaau [brdpier0004]
Relative abundance, breeding ecology, annual survival, home range, and foraging ecology of the Akiapolaau (Hemignathus munroi), an endangered Hawaiian honeycreeper, were studied on the island of Hawaii. ...


68. Aspen Forest Cover by Stratum/Plot (SNF) [SNF_ASP_CVR_140_1]
Average percent coverage and standard deviation of each canopy stratum from subplots at each aspen site during the SNF study in the Superior National Forest, Minnesota


69. Assawoman Island Division of the Chincoteague National Wildlife Refuge in Virginia [USFWS_CSDS_asibnd]   PARENT METADATA
This data set contains boundary layers for the Assawoman Division of the Chincoteague National Wildlife Refuge in Virginia. National Wildlife Refuges are federal lands managed by the U.S. Fish and ...


70. Assessing Breeding Populations of Ducks by Ground Counts. [usgs_npwrc_ducks]
Waterfowl inventories taken during the breeding season are recognized as a basic technique in assessing the number of ducks per unit area. That waterfowl censusing is still an inexact technology leading ...


71. Assessing Contaminant Sensitivity of Endangered and Threatened Species Toxicant Classes. [usgs_brd_cerc_d_contamsens]
Under the Federal Insecticide, Fungicide and Rodenticide Act, the Toxic Substances Control Act and the Clean Water Act, the U.S. Environmental Protection Agency is charged with determining if the ...


72. Assessing UV-B induced DNA damage in Antarctic plants: is desiccation a compounding factor? [ASAC_1310]
Metadata record for data from ASAC Project 1310 See the link below for public details on this project. ---- Public Summary from Project ---- Increasing UV-radiation over Antarctica each spring may ...


73. Assessment of Habitat Requirements and Recruitment Dynamics for Young-of-the-year Bonefish Within Bear Cut Preserve, Florida [RSMAS_ML-001]
Bonefish (Albula vulpes) are spectacular sportfish capable of extreme speeds when hooked. They occur worldwide in warm subtropical and tropical coastal waters, from the nearshore extremely shallow ...


74. Assessment of Historical Phytoplankton Characteristics and Bloom Phenomena in the New York Harbor Estuarine and New York Bight Ecosystems [HRF_phytoplanktonchar]
The purpose of this study is to compile existing data sets so as to characterize normal and excessive (blooms) phytoplankton conditions and to determine the location, extent, ...


75. Assessment of Historical Phytoplankton Characteristics and Bloom Phenomena in the New York Harbor Estuarine and New York Bight Ecosystems - NYNJHEP_phytoplanktonchar [NYNJHEP_phytoplanktonchar]
The purpose of this study is to compile existing data sets so as to characterize normal and excessive (blooms) phytoplankton conditions and to determine the location, extent, ...


76. Assessment of Spatial and Temporal Distribution of Genetic Diversity in Atlantic Salmon (Salmo salar) [LSC_AtlanticSalmon]
The eastern coastal rivers of North America have historically supported anadromous populations of Atlantic salmon (Salmo salar). Numbers of these animals have declined due to overfishing and loss ...


77. Assessment of inter-annual and seasonal variability of the circulation over the shelf and slope off central Chile [GLOBEC_038_CHL_002]   PARENT METADATA
Assessment of inter-annual and seasonal variability of the circulation over the shelf and slope off central Chile and the development of simple models of free and wind-forced trapped waves Hydrographic ...


78. Assessment of the Impact of Environmental Stresses on the Health of Agroecosystems [USDA0510]
The purpose of the "Assessment of the Impact of Environmental Stresses on the Health of Agroecosystems" dataset is to establish a protocol for assessing the health of agroecosystems. ...


79. 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 ...


80. Assessment of the recovery of damage to mosses (from walking tracks, cores and slab removal) from the Taylor Valley [K024_1989_1990_NZ_3]
It is commonly accepted that mosses in the Dry Valley's grow very slowly. The recovery of mosses was investigated by locating and investigating in detail various damaged sites from previous activity ...


81. Asteroids from French subantarctic islands: records from the Marion Dufresne MD03 expeditions [scarmarbin_1784]
This dataset is a digital version of the species and stations lists of seastars (Asteroidea, Echinodermata) collected during the Marion Dufresne MD03 expedition in the Kerguelen islands.


82. Atlantic Canada Conservation Data Centre Georeferenced Rare Species Data - Rare Anadromous Fish, Rare Marine Birds, Rare Marine Mammals [Canada_ACCDC_GeoRefRareSpecies]   CHILD METADATA
The Atlantic Canada Conservation Data Centre (AC CDC) collects data on rare species and natural communities in New Brunswick, Nova Scotia, Prince Edward Island, Newfoundland, and Labrador and in adjacent ...


83. Atlantic Canada Shorebird Survey [gomc_29]
The North American Bird Monitoring Projects Database is a website dedicated to bird monitoring in North America. It contains information about several hundreds bird monitoring projects from Mexico, ...


84. Atlantic Coastal Database Directory [Canada_ACZISC_ACZDD]
The Atlantic Coastal Database Directory (ACDD) was initiated by the Atlantic Coastal Zone Information Steering Committee (ACZISC) in 1992. The Atlantic Coastal Information Portal (ACIP), ...


85. Atlantic Offshore Seabird Dataset Catalog [USGS_PWRC_Atlantic_Seabird_Dataset]
ABSTRACT: Several bureaus within the Department of Interior compiled available information from seabird observation datasets from the Atlantic Outer Continental Shelf into a single database, with ...


86. Atlantic Reference Centre Museum of Canadian Atlantic Organisms - Invertebrates and Fishes Data [Canada_ARC_InvertebratesFishes]   CHILD METADATA
This is the Atlantic Reference Centre museum database for Canadian Atlantic marine organisms. Specimens represent invertebrates from sponges to tunicates, ...


87. Atlantic Reference Centre Museum of Canadian Atlantic Organisms - Invertebrates and Fishes Data (OBIS Canada) [OBIS.ARC]   PARENT METADATA
This is the OBIS version of the Atlantic Reference Centre museum database for Canadian Atlantic marine organisms. Specimens represent invertebrates from sponges to tunicates, and fishes. The ichthyoplankton ...


88. Atlantic Salmon Restoration Program [gomc_178]
Salmon Program Outlook: The brood stock program, operating since 1993, is part of the Merrimack River Anadromous Fish Restoration Program. Before they are released, these brood fish provide eggs for ...


89. Atlantic Zone Monitoring Program (AZMP) DFO Maritimes region plankton dataset (OBIS Canada) [OBIS.AZMP-Maritimes]
The AZMP was implemented in 1998 with the aim of collecting and analyzing the biological, chemical, and physical data to detect and monitor seasonal and interannual variability in eastern Canadian ...


90. Atlantic Zone Monitoring Program (AZMP) DFO Quebec region plankton dataset [OBIS.AZMP-Quebec]
The AZMP was implemented in 1998 with the aim of collecting and analyzing the biological, chemical, and physical data to detect and monitor seasonal and interannual variability in eastern Canadian ...


91. Atlantic and Gulf Rapid Reef Assessment – Benthic [AGRRA_Benthic]
Survey of health of reef communities in the Western Atlantic Ocean and Gulf of Mexico The Atlantic and Gulf Rapid Reef Assessment (AGRRA) Program is an international collaboration of ...


92. Atlantic and Gulf Rapid Reef Assessment – Fish [AGRRA_Fish]
The Atlantic and Gulf Rapid Reef Assessment (AGRRA) Program is an international collaboration of scientists and mangers aimed at determining the regional condition of reefs in the Western Atlantic ...


93. Atlas of Coastal Habitats and Fishery Resources - Northern Quebec [Canada_DFO_CHFishResNQue]
This collection covers Hudson Bay, James Bay and Ungava Bay. These areas form the basis of three separate products. The three bays lie along the Quebec border north of the 50th parallel, ...


94. Atlas of Coastal Habitats and Fishery Resources - St.Lawrence River [Canada_DFO_CHFishResStLawR]
This collection comprises eight products, seven of which correspond to the same number of areas of the River and the Gulf of St Lawrence: Chaleur Bay, the Lower North Shore, the lower estuary, the ...


95. Atlas of Florida Vascular Plants [FLORIDA_VASCULAR_PLANTS]
To provide easy access to information about the distribution of vascular plants within Florida. Provides a source of information about the distribution of over ...


96. Atlas of Relations Between Climatic Parameters and Distributions of Important Trees and Shrubs in North America [USGS_P1650-a]
This atlas explores the continental-scale relations between the geographic ranges of woody plant species and climate in North America. A 25-km equal-area grid of modern climatic and bioclimatic parameters ...


97. Atlas of cephalopod distribution in the Southern Ocean [scarmarbin_1873]
A synthesis of various publications detailing Cephalopod distribution in the Southern Ocean and covers the time period 1902-1996.


98. Atqasuk NIMS grid LiDAR photographs 2011 [atqasuk_nims_grid_lidar_photographs_2011]
At the end of the summer 2011 we took LiDAR measurements to depict Digital Elevation Models (DEMs) of the tundra vegetation within the NIMS site in Atqasuk, Alaska. A set of photographs was taken ...


99. Audubon Christmas Bird Counts [brdpwrc0006]
Audubon link: "http://www.audubon.org/" The first Christmas Bird Counts (CBCs) were conducted in 1900 in response to a suggestion made in the National Audubon Society's magazine Bird-Lore. Twenty-seven ...


100. Aurora Australis Voyage 6 (AAMBER2) 1990-91 Phytoplankton Data [AADC-00095]
This dataset contains the data from Voyage 6 1990-91 of the Aurora Australis. The observations were taken from the Prydz Bay area, Antarctica in January and February 1991. Taxonomic identity and abundance ...


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