70,230 Works

Soil microbial activity and abundance data in the rhizosphere and bulk soils of O horizon in the MELNHE study, 2014

Shan Shan & Melany Fisk
The Multiple Element Limitation in Northern Hardwood Ecosystems (MELNHE) project studies N and P acquisition and limitation through a series of nutrient manipulations in northern hardwood forests. This data set includes rhizosphere processes and microbial abundance at the Bartlett Experimental Forest. Samples were collected once, in summer 2014, in the forth year of fertilization with N and P. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a...

Harvard Forest site, station Coos County, NH (FIPS 33007), study of population employed in service (percent of total) in units of percent on a yearly timescale

U.S. Bureau Of The Census, Christopher Boone, Ted Gragson, Nichole Rosamilia, Inter-University Consortium For Political And Social Research, Michael R. Haines & EcoTrends Project

Plant succession and biomass dynamics following logging and burning in Watersheds 1 and 3, Andrews Experimental Forest, 1962 to Present

Andrews Forest LTER Site & C. Ted Dyrness
There has been long history of geomorphic, hydrological, and ecological study in the experimental watersheds of HJA, which include WS1 and WS3 and the neighboring old-growth basin, WS2. These include comparative studies of sediment yield, stream chemistry, and water flow following whole-basin logging of WS1 and patch-cut logging of WS3, and long-term studies of post-harvest forest development. The latter, initiated in 1962, are among the longest-running and most intensive studies of secondary succession in forests...

Aboveground net primary productivity data for Saddle grid, 1992 - ongoing.

Hope Humphries
Total aboveground live vascular biomass was clipped from 50x20 cm plots in areas near the saddle grid permanent plots on Niwot Ridge to measure net primary productivity.

Coweeta site, station Wilkes County, NC (FIPS 37193), study of population employed in manufacturing (percent of total) in units of percent on a yearly timescale

Michael R. Haines, Inter-University Consortium For Political And Social Research, Nichole Rosamilia, University Of Georgia Department Of Anthropology, Ted Gragson, Associate Professor, Christopher Boone, School Of Human Evolution & Social Change And The Global Institute For Sustainability, Associate Professor, Inter-University Consortium For Political And Social Research, U.S. Bureau Of The Census, EcoTrends Project & EcoTrends Project Coordinator

Combined data on plant species abundance and composition from LTER and other grasslands in the United States, 1943 - 2010

Lauren M Hallett, Joanna S Hsu, Elsa E Cleland, Scott L Collins, Timothy L Diskson, Emily C Farrer, Laureano A Gherardi, Katherine L Gross, Richard J Hobbs, Laura Turnbull, Katherine N Suding, James Bartolome & Peter Hopkinson
Understanding how biotic mechanisms confer stability in variable environments is a fundamental quest in ecology, and one that is becoming increasingly urgent with global change. Several mechanisms, notably a portfolio effect associated with species richness, compensatory dynamics generated by negative species covariance and selection for stable dominant species populations can increase the stability of the overall community. While the importance of these mechanisms is debated, few studies have contrasted their importance in an environmental context....

Carbon flux from aquatic ecosystems of the Arctic Coastal Plain along the Beaufort Sea, Alaska, 2010-2018

Beaufort Lagoon Ecosystems LTER & Vanessa L Lougheed
Multiple aquatic ecosystems (pond, lake, river, lagoon, ocean) on the Arctic Coastal Plain (ACP) near Utqiaġvik, AK were visited to determine their relative contribution to landscape-level atmospheric CO2 flux and how this may have changed over time. pCO2 (partial pressure of carbon dioxide) was monitored in late summer (late July to mid-August) over a period of four years (2013, 2015, 2017, 2018) from open water areas and is related to habitat type, dissolved organic carbon...

Kellogg Biological Station site, station Kent County, MI (FIPS 26081), study of population employed in commerce (percent of total) in units of percent on a yearly timescale

U.S. Bureau Of The Census, Ted Gragson, Associate Professor, Michael R. Haines, Inter-University Consortium For Political And Social Research, Inter-University Consortium For Political And Social Research, Christopher Boone, School Of Human Evolution & Social Change And The Global Institute For Sustainability, Associate Professor, Nichole Rosamilia, University Of Georgia Department Of Anthropology, EcoTrends Project & EcoTrends Project Coordinator

Variation in Landsat 8-estimated land surface temperature with elevation from Spartina alterniflora marsh cross sections in the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) site and Virginia Coast Reserve (VCR) LTER sites for winter and summer observations spanning 2013-2018

Georgia Coastal Ecosystems LTER Project & Merryl Alber
We estimated land surface temperature from top of atmosphere brightness temperature provided by Landsat 8's band 10 (a thermal band). We collected these measurements first for Spartina alterniflora dominated marsh near the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) eddy covariance flux tower. Measurements were collected from pixels along three east-west cross sections that spanned a marsh edge to interior gradient. We extracted Landsat 8 data for all available cloud-free low tide dates during...

Continuous soil temperature measurements at 10 cm depth from 3 month-long deployments in summer and winter within the Georgia Coastal Ecosystems Long Term Ecological Research (GCE-LTER) site in 2017 and 2018

Georgia Coastal Ecosystems LTER Project & Merryl Alber
To understand the influence of marsh elevation and flooding on soil temperature in Spartina alterniflora marsh, we measured soil temperature at 10 cm depth along two transects that spanned a marsh edge to interior gradient. We then associated those measurements with elevation, creek water height and vegetation characteristics. Soil temperature was logged every 15 min with a Hobo Onset Tidbit Pendant Temperature probe in Spartina alterniflora-dominated marsh near the Georgia Coastal Ecosystems Long Term Ecological...

Yearly survey of barnacle settlement in mid-marsh and creekbank plots at GCE LTER study sites in October 2017

Georgia Coastal Ecosystems LTER Project & Christine Angelini
To characterize spatial variation in barnacle recruitment within two zones in the salt marsh, the mid-marsh and creekbank, and across a gradient in salinity and distance to ocean, we deployed PVC poles to passive sample barnacle settlement. Eight poles were deployed between 4-5m apart in each marsh zone at each GCE LTER permanent monitoring site each Fall beginning in 2012. These poles were then collected the following Fall and all barnacle that settled on the...

Yearly survey of barnacle settlement in mid-marsh and creekbank plots at GCE LTER study sites in October 2016

Georgia Coastal Ecosystems LTER Project & Christine Angelini
To characterize spatial variation in barnacle recruitment within two zones in the salt marsh, the mid-marsh and creekbank, and across a gradient in salinity and distance to ocean, we deployed PVC poles to passive sample barnacle settlement. Eight poles were deployed between 4-5m apart in each marsh zone at each GCE LTER permanent monitoring site each Fall beginning in 2012. These poles were then collected the following Fall and all barnacle that settled on the...

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