cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6073/pasta/3a17c4c106708c1a9bc177ad95768bb7
title: Hurricane Recovery Plots at Harvard Forest since 1937

description: The New England hurricane of 1938, by destroying many acres of mature and semi-mature forests, initiated new forest associations over a large area. Permanent plots were established across the Harvard Forest in severely damaged stands (many of which were logged subsequent to the hurricane) to assess forest succession. Most of the plots involved successions following the blowdown of white pine on glacial till or outwash soils. From 1940 - 1948, and in 1978 and 1991, tree density and presence/absence of herb and shrub species were tallied. Pioneer species regenerating from seed and advance regeneration of longer-lived species quickly established at the sites; hemlock was the only species successfully regenerating after year 10, and most tree species were present within 2-4 years of the hurricane. By 1978, pioneer species such as gray birch and pin cherry declined or disappeared and red maple, white pine, paper birch and red oak dominated the plots. By 1991, most understory species present before the hurricane had returned, although there was a small group of understory species that apparently were more sensitive to disturbance and did not recover.
DOI: 10.3886/icpsr38895.v1
title: Survey of Consumer Attitudes and Behavior, February 2020
title: Version 1

description: The Survey of Consumer Attitudes and Behavior series (also known as the Surveys of Consumers) was undertaken to measure changes in consumer attitudes and expectations, to understand why such changes occur, and to evaluate how they relate to consumer decisions to save, borrow, or make discretionary purchases. The data regularly include the Index of Consumer Sentiment, the Index of Current Economic Conditions, and the Index of Consumer Expectations. Since the 1940s, these surveys have been produced quarterly through 1977 and monthly thereafter. The surveys conducted in 2020 focused on topics such as evaluations and expectations about personal finances, employment, price changes, and the national business situation. Opinions were collected regarding respondents' appraisals of present market conditions for purchasing houses, automobiles, and other durables. Also explored in this survey, were respondents' political affiliation and opinion about the Trump administration. Demographic information includes race, sex, age, marital status, and education.
description: The purpose of this survey series is to forecast changes in aggregate consumer behavior.
description: This survey is a rotating panel design. For each monthly sample, an independent cross-section sample of households is drawn. The respondents chosen in this drawing are then reinterviewed six months later. The result is a rotating panel design, and the total sample for any one survey is normally made up of 60 percent new respondents with 40 percent being interviewed for the second time.
description: The data are not weighted, however, this collection contains three weight variables; <b>WT_AD</b> (Adult weight), <b>WT_HH</b> (Household weight), <b>WT</b> (Household weight (WT_HH renamed)) and that must be used in any analysis. For more information on weights and sampling, please refer to the documentation and/or visit the Survey of Consumer Website .
description: National sample of telephone numbers from cell (RDD) sampling frame.
description: Datasets: DS0: Study-Level Files DS1: Public-Use Data DS2: Restricted-Use Data
description: Persons aged 18 years or older living in households with telephones in the coterminous United States. Smallest Geographic Unit: FIPS code
description: computer-assisted telephone interview (CATI)Information on the Index of Consumer Sentiment, the Index of Current Economic Conditions, and the Index of Consumer Expectations and how they were created can be found in the P.I. Codebook.Additional information on the Surveys of Consumers can be found by visiting the Survey of Consumer Website .
DOI: 10.3886/icpsr38895
title: Survey of Consumer Attitudes and Behavior, February 2020
title: Archival Version

description: The Survey of Consumer Attitudes and Behavior series (also known as the Surveys of Consumers) was undertaken to measure changes in consumer attitudes and expectations, to understand why such changes occur, and to evaluate how they relate to consumer decisions to save, borrow, or make discretionary purchases. The data regularly include the Index of Consumer Sentiment, the Index of Current Economic Conditions, and the Index of Consumer Expectations. Since the 1940s, these surveys have been produced quarterly through 1977 and monthly thereafter. The surveys conducted in 2020 focused on topics such as evaluations and expectations about personal finances, employment, price changes, and the national business situation. Opinions were collected regarding respondents' appraisals of present market conditions for purchasing houses, automobiles, and other durables. Also explored in this survey, were respondents' political affiliation and opinion about the Trump administration. Demographic information includes race, sex, age, marital status, and education.
description: The purpose of this survey series is to forecast changes in aggregate consumer behavior.
description: This survey is a rotating panel design. For each monthly sample, an independent cross-section sample of households is drawn. The respondents chosen in this drawing are then reinterviewed six months later. The result is a rotating panel design, and the total sample for any one survey is normally made up of 60 percent new respondents with 40 percent being interviewed for the second time.
description: The data are not weighted, however, this collection contains three weight variables; <b>WT_AD</b> (Adult weight), <b>WT_HH</b> (Household weight), <b>WT</b> (Household weight (WT_HH renamed)) and that must be used in any analysis. For more information on weights and sampling, please refer to the documentation and/or visit the Survey of Consumer Website .
description: National sample of telephone numbers from cell (RDD) sampling frame.
description: Datasets: DS0: Study-Level Files DS1: Public-Use Data DS2: Restricted-Use Data
description: Persons aged 18 years or older living in households with telephones in the coterminous United States. Smallest Geographic Unit: FIPS code
description: computer-assisted telephone interview (CATI)Information on the Index of Consumer Sentiment, the Index of Current Economic Conditions, and the Index of Consumer Expectations and how they were created can be found in the P.I. Codebook.Additional information on the Surveys of Consumers can be found by visiting the Survey of Consumer Website .
DOI: 10.6073/pasta/6c8f612338c0d8e432fcae20fd3f2a8b
title: Permanent Plots at Pisgah State Forest in Winchester NH since 1984

description: There are relatively few studies that have examined forest structure and composition both before and after a catastrophic wind disturbance has altered the forest. On a twenty acre parcel of old-growth forest located in the Pisgah State Forest in southwest New Hampshire, the collection of a long term data set from 1907-1995 has made it possible to consider how the hurricane of 1938 altered forest structure, species composition, and subsequent forest development in the stand. Various types of information were gathered throughout the century that allowed the quantification of forest structure and composition: species identification, diameter measurements, tree status (living or dead), tree cores, and individual tree growth and mortality have recently been tracked. The old-growth forest before 1938 was dominated by a Pinus-Tsuga-Hardwood mix. The hurricane left the forest devastated and incredibly altered. The total basal area of the forest was drastically reduced from approximately 70m2/ha to about 5m2/ha after the disturbance. White pine was effectively lost from the stand while many large Tsuga were also blown down. A large increase in density was subsequently recorded as many post-disturbance species took advantage of the resources that had been made available, especially light. Although there was a high level of destruction, a good amount of Tsuga and Fagus that had previously existed in the understory was released from suppression and grew to fill in parts of the overstory. Both the forest structure and the species composition changed from a relatively homogeneous state before the hurricane to an extremely heterogeneous one after the hurricane. The overall development of the stand followed the typical path of a recently disturbed area: after the initial increase in density in the few years after the storm, basal area has been steadily increasing while density has steadily decreased. It has also been possible to observe differences in the ability of individual species to react to the hurricane. Tsuga and Fagus are exhibiting a much-increased ability to remain in the stand while other post-disturbance species such as Betula and Acer are suffering much higher mortality. Although the forest already has very low tree species diversity, it will continue to drop with time as more and more of the post-disturbance hardwoods are lost to mortality.
DOI: 10.6073/pasta/5cbd00350c685d4cf62c699d1f1a5854
title: Conservation Study in North Quabbin Region of Central Massachusetts 1900-1993

description: This study investigated the history of land protection in north central Massachusetts. For details on methods and results, please see the published paper (Golodetz, A.D. and D.R. Foster. 1997. History and importance of land use and protection in the North Quabbin region of Massachusetts (USA). Conservation Biology 11:227-235). The Abstract from the paper is reproduced below: "Evaluating the consequences and future of land protection requires broad temporal and spatial perspectives of ecological and cultural factors. We assessed the development of a system of protected areas comprising 37% of central Massachusetts in terms of changing rates and means of land protection. We compared protected areas to the surrounding matrix in terms of physical, biological, and historical features and used these results to raise issues concerning future planning. The rate, purpose, and means of land protection in the North Quabbin Region (168,312 ha) have been dynamic as a result of changes in cultural values and transformation of the landscape from predominantly agriculture to forest. Protected lands are managed by 25 federal and state agencies, private groups, and municipal departments and commissions and are physically and biologically typical of the regional landscape which results from (1) participation of diverse organizations with varied agendas; (2) predominance of large government acquisitions driven by landscape-scale criteria; and (3) absence of coordination among groups. The large area, relative homogeneity and largely undeveloped status of the North Quabbin Region suggest conservation goals distinct from those in the fragmented and extensively developed neighboring areas of the Connecticut River Valley and Cape Cod and Islands Region. Large tracts of forests, wetlands, and lakes in the North Quabbin Region provide (1) habitat for species requiring extensive, intact areas; (2) the opportunity to maintain broad-scale ecological processes; (3) connections to the regional conservation areas; and (4) recreation. To realize the area's potential, a comprehensive plan must be based on a broad-scale perspective and historical understanding of the landscape."
DOI: 10.6073/pasta/5867ab3f5de90cb2a7366660e06f8399
title: Carbon Biogeochemistry of Forested Headwater Streams at Harvard Forest 2006-2007

description: Headwater streams make up greater than 80% of total channel length in the United States and play important roles in regulating nutrient, organic matter, and sediment fluxes from terrestrial to downstream ecosystems. Headwater streams are common features of many upland-forested watersheds in New England, yet are not explicitly factored into forest water, carbon, and nutrient budgets. Here we report on recent efforts to examine terrestrial and stream ecosystem linkages in carbon biogeochemistry in a hemlock-dominated watershed. A prototype stream biogeochemical system (SBS) was tested at the Harvard Forest LTER. The SBS allows a suite of stream water properties to be characterized in real-time over extended periods of time thus allowing questions to be asked at a wide range of time scales. The prototype SBS was field-tested in Bigelow Brook West on the Prospect Hill research tract at Harvard Forest. Bigelow Brook West was selected because the watershed’s hydrology, stream ecology, forest composition, land-use history, and carbon sequestration have been characterized, thus aiding the interpretation of SBS data and facilitating multi-disciplinary research. The prototype system monitors stream and air temperature, pCO2 , colored dissolved organic matter, total suspended sediments, PAR, water depth, pH, and dissolved O2. Independent estimates of organic and inorganic water chemistry were used to validate and interpret SBS data. Here we report on preliminary findings from the pilot SBS at Harvard Forest to highlight the usefulness of headwater stream chemistry data to a wide-diversity of ecosystem scientists. 1) Low pH constrains dissolved inorganic carbon solute fluxes to downstream ecosystems. 2) CO2 concentrations were always supersaturated in Bigelow Brook, averaging about 6x atmospheric values in summer, thus the stream is an important source of CO2 to the atmosphere. Variation in CO2 appears to be linked to multiple mechanisms including changes in stream temperature, soil CO2, and in-stream processes. 3) Diurnal variation in stream dissolved oxygen concentrations is linked to both in situ stream processes and watershed processes, such as evapotranspiration. 4) Colored dissolved organic matter (CDOM) concentrations were tightly linked to discharge with concentrations increasing with discharge. The surprising additive effect of increasing DOC concentration with discharge cause DOC fluxes to increase non-linearly with water fluxes in Bigelow Brook. 5) Low inorganic N and P concentrations suggest that organic N and P may account for a disproportionate fraction of N and P fluxes to downstream ecosystems. Preliminary SBS data have already altered our conceptual model regarding terrestrial and aquatic linkages in the Bigelow Brook watershed and have illuminated a fundamental lack of understanding of the mechanisms regulating diurnal and storm-driven stream water chemistry in hemlock-dominated watersheds.
DOI: 10.5281/zenodo.10251672
title: Investigating Accountability in Systems-of-Information Systems
DOI: 10.5281/zenodo.10251673
title: Investigating Accountability in Systems-of-Information Systems
DOI: 10.5281/zenodo.10255691
title: Data from: Mechanical soil disturbance in a pine savanna has multi-year effects on plant species composition

description: Data used in the manuscript Mechanical soil disturbance in a pine savanna has multi-year effects on plant species composition accepted for publication in Ecosphere. Data included are species lists for all plots and years, percent cover of species in each plot in 2021, and life-history characteristics (life span, dispersal mechanism, seed bank persistence) of all species. See manuscript for site description and data collection methodology.
DOI: 10.5281/zenodo.10256231
title: The invasive land flatworm Arthurdendyus triangulatus: repeated sequences in the mitogenome, extra-long cox2 gene and paralogous rRNA clusters

description: Fasta and tbl files for the mitogenomes of various Rhynchodeminae
DOI: 10.5281/zenodo.10256232
title: The invasive land flatworm Arthurdendyus triangulatus: repeated sequences in the mitogenome, extra-long cox2 gene and paralogous rRNA clusters

description: Fasta and tbl files for the mitogenomes of various Rhynchodeminae
DOI: 10.6073/pasta/963eab624f7936115a89122c39e3bc77
title: Land Use on the Southern New England and New York Coasts 1600-2001

description: The widespread influence of land use and natural disturbance on population, community, and landscape dynamics and the long-term legacy of disturbance on modern ecosystems requires that a historical, broad-scale perspective become an integral part of modern ecological studies and conservation assessment and planning. In previous studies, the Harvard Forest Long Term Ecological Research (LTER) program has developed an integrated approach of paleoecological and historical reconstruction, meteorological modeling, air photo interpretation, GIS analyses, and field studies of vegetation and soils, to address fundamental ecological questions concerning the rates, direction, and causes of vegetation change, to evaluate controls over modern species and community distributions and landscape patterns, and to provide critical background for conservation and restoration planning. In the current study, we extend this approach to investigate the link between landscape history and the abundance, distribution, and dynamics of species, communities and landscapes of the Cape Cod to Long Island coastal region, including the islands of Martha's Vineyard, Nantucket, and Block Island. The study region includes many areas of high conservation priority that are linked geographically, historically, and ecologically. Despite the compelling rationale for examining this coastal region as a whole and for comparing its related, though distinctive geographic areas, an integrated and comprehensive study of the region has never been undertaken. We are investigating regional controls over landscape patterns and community distribution and will focus in detail on the dynamics of sandplain communities, including grasslands, heathlands, barrens, and woodlands, which are unique components of this region and high priorities for conservation. In order to determine the historical and modern abundance and distribution of these community types, and to relate these to historical patterns of land use, fire, windstorms and other disturbances, we are developing: (1) GIS-based, spatially explicit maps of land use, land cover, environment, hurricane characteristics, and cultural features across the region for the historical period (17th C to present), (2) pollen and charcoal diagrams for critical areas where data are currently unavailable and an integrated analysis of data from all studies across this region, (3) analysis of the relationship between high priority communities (sandplain grasslands, heathlands, barrens, and related communities), rare species, and disturbance history, (4) revised conceptual ecological models for sandplain communities and recommendations for ecological goals and management approaches.
DOI: 10.25606/surf.4b430b2dbe4c366b
title: LDBC Social Network Benchmark Interactive v1 workload (Datagen 0.3.5)

description: Data sets for the LDBC Social Network Benchmark Interactive v1 workload, generated with Datagen v0.3.5. Stored in zstd-compressed CSV files. Website: https://ldbcouncil.org/benchmarks/snb-interactive/ Related publication: Renzo Angles, János Benjamin Antal, Alex Averbuch, Altan Birler, Peter Boncz, Márton Búr, Orri Erling, Andrey Gubichev, Vlad Haprian, Moritz Kaufmann, Josep Lluís Larriba Pey, Norbert Martínez, József Marton, Marcus Paradies, Minh-Duc Pham, Arnau Prat-Pérez, David Püroja, Mirko Spasić, Benjamin A. Steer, Dávid Szakállas, Gábor Szárnyas, Jack Waudby, Mingxi Wu, Yuchen Zhang: The LDBC Social Network Benchmark. CoRR abs/2001.02299 (2020). https://arxiv.org/abs/2001.02299
DOI: 10.6073/pasta/bc579b8f4dff061b0532933eca3bc74e
title: Timber Harvesting Study in North Quabbin Region of Central Massachusetts 1984-2001

description: Although the northeastern U.S. includes extensive areas of aggrading forest, uncertainty regarding the intensity and pattern of forest harvesting hampers an understanding of important ecological processes and characteristics such as carbon and nitrogen storage, habitat quality, and forest dynamics, and impedes regional conservation and management planning. Due to the complex ownership pattern dominated by thousands of non-industrial private forest (NIPF) owners and the difficulty of detecting selective logging using remote sensing, details of the harvesting regime remain largely unknown to the scientific and policy communities. To examine the value of statewide regulatory data for Massachusetts as a unique source of this critical information, we analyzed 17 years of timber harvest data gathered for regulatory purposes for a 168,000-ha forested landscape in Massachusetts that is the focus of concerted conservation planning and intensive study of landscape and ecosystem pattern and process. The North Quabbin Region is heavily wooded with a complicated ownership pattern dominated by over 2,500 NIPF owners, three state agencies, and diverse conservation and municipal holdings. The extent and intensity of harvesting were surprising, with an annual disturbance rate of 1.5% and a mean intensity of 44.7 m3 ha-1 (approximately one-fourth of average stand volume). The predominant form of harvesting was selective removal of commercially valuable tree sizes, grades and species (e.g., Quercus rubra and Pinus strobus). The spatial pattern of logging was random with regards to major physical, biological, or cultural factors. However, logging was strongly related to landowner class. NIPF owners control 60% of the forest area and were responsible for 64.1% of harvest area, but the highest logging intensity (volume per area harvested; 69.3 m3 ha-1) among major landowners was conducted by the state agency responsible for managing southern New England's largest conservation property, the watershed of Boston's drinking reservoir. This regime of chronic disturbance is occurring over the entire landscape and exerting a major influence on forest composition, dynamics, and habitat quality. However, dispersed selective harvesting is largely unnoticed by residents, is routinely overlooked by ecologists and conservationists, and would remain unrecognized in the absence of this previously unused regulatory data. These results identify the value of regional regulatory spatial information to estimate ecological trends and to assist in conservation planning. Given similarities among ownership and forest patterns for much of the northeastern U.S., we expect that the broad findings of this study to have regional application.